JPH1181900A - Tunnel ventilation control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of ventilators to be operated and save energy by measuring traffic amounts and car speeds on up and down lines separately in a tunnel to calculate traffic ventilation force which acts in the tunnel and flowing ventilation wind in the same direction as the traffic ventilation force. SOLUTION: Estimated values of traffic amounts and car speeds in future are calculated by a traffic amount estimating means 10 based on the traffic amount and car speed measured by a traffic amount measuring means 8. Traffic ventilation force which acts in a tunnel 1 is calculated by a traffic ventilation computing means 11 based on the calculated and estimated values. The direction of operation of jet fans 3-1 to 3-n is determined to flow ventilation wind in the same direction as the traffic ventilation force. The timing for changing over the jet fans 3-1 to 3-n is judged based on the values measured by fume permeation rate gauges 40-1, 4-2, CO concentration gauges 5-1, 5-2, and wind direction wind force gauge 6-1 to determine the number of ventilators to be operated by a ventilation feedback means 7. A ventilator control means 15 controls ventilation based on the direction of ventilation, the number of ventilators to be operated, and the change-over timing which are determined previously.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel ventilation control device for controlling a ventilator installed in a tunnel with optimal ventilation to control the concentration of contamination in the tunnel. Automatically switches and controls the direction of ventilation in the same direction as the natural ventilation power in the tunnel, and reduces the number of operating ventilators installed in the tunnel to effectively perform tunnel ventilation while conserving energy. The present invention relates to a tunnel ventilation control device.

[0002]

2. Description of the Related Art Generally, in a tunnel with a large traffic volume, since the inside of the tunnel is polluted by the exhaust gas of an automobile, mechanical ventilation is performed so as to maintain the concentration of the pollution in the tunnel below an allowable value.

[0003] In this case, there are various ventilation methods, but in a tunnel having a relatively short distance, a longitudinal flow ventilation method in which a plurality of ventilators such as jet fans capable of reversible operation are installed is employed. There are many.

In this vertical flow ventilation system, ventilation air is flowed from one wellhead to the other wellhead so as to be parallel to the traffic flow, and by switching the forward / reverse rotation of the ventilator,
The direction of ventilation in the tunnel is switched.

In the conventional tunnel ventilation control device, the switching of the ventilation direction is performed manually at the discretion of the operator or, for example, in Japanese Patent Application Laid-Open No. 50-71150.
As described in the above, by comparing measurement signals from fume transmittance meters (hereinafter, referred to as VI meters) provided at both entrances of the tunnel, the transmittance (hereinafter, referred to as VI value) decreases. There is known a device in which the direction is automatically switched to a certain direction.

Here, the VI value is a value representing the light transmittance, and means that the closer to 100%, the better the visibility in the tunnel.

[0007]

However, such a conventional tunnel ventilation control device has the following problems.

That is, even when all of the ventilators are stopped, a small amount of roadway wind flows through the tunnel due to the traffic ventilation force acting on the tunnel and the pressure difference between the two wells. Hereinafter, it is called natural ventilation power).

Therefore, when operating the ventilator, it is better to operate the ventilator in a direction in which the natural ventilation force is a tailwind.
The load due to the air resistance applied to the ventilator can be reduced, and the operation for energy saving can be performed accordingly.

[0010] However, the direction of natural ventilation in the tunnel depends on the traffic volume, the traffic ratio between up and down, and weather conditions, and it is very difficult for a person to determine the direction in which natural ventilation is working. It is difficult to change the direction of ventilation manually by the operator,
In the method of switching the ventilation direction to the direction where the value is decreasing,
It is not always possible to control the direction of ventilation in the same direction as the natural ventilation power in the tunnel, and there is also the problem of ventilating in the direction of a headwind, which increases energy consumption and conserves energy. There is.

In the system in which the ventilation direction is manually switched by the operator, the burden on the operator increases when the number of managed tunnels increases, and it is difficult to switch the ventilation direction of each tunnel at an appropriate timing. There is also a problem.

Further, since the direction of the natural ventilation force in the tunnel changes depending on the traffic volume, the traffic volume ratio between up and down, and weather conditions, the ventilation direction is switched according to the current direction of the natural ventilation force. At this time, when the switching is completed, the direction of the natural ventilation force has already changed, resulting in ventilation in the direction of headwind, and there is also a problem that tunnel ventilation cannot be performed effectively.

An object of the present invention is to automatically switch and control the direction of ventilation in the same direction as the direction of natural ventilation in a tunnel, and to reduce the number of ventilators installed in the tunnel to save energy. An object of the present invention is to provide a tunnel ventilation control device capable of effectively performing tunnel ventilation while achieving the above.

[0014]

In order to achieve the above object, a tunnel ventilation control device according to a first aspect of the present invention is a traffic flow measuring device for measuring a traffic flow and a vehicle speed of an up and down passage through a tunnel. And, based on the traffic volume and the vehicle speed measured by the traffic volume measurement unit, based on the traffic ventilation force calculation unit that calculates the traffic ventilation force acting on the tunnel, based on the traffic ventilation force calculated by the traffic ventilation force calculation unit, Ventilation direction determining means for determining the operation direction of the ventilator so that the ventilation wind in the tunnel flows in the same direction as the traffic ventilation force, and based on the respective measurement values by the pollution concentration meter and the anemometer, A ventilation direction switching determining means for determining a timing for switching the driving direction, and a ventilation method determined by the ventilation direction determining means based on the switching timing determined by the ventilation direction switching determining means. As ventilating with a predetermined ventilation force,
Ventilator control means for controlling the number of operating ventilators.

Therefore, in the tunnel ventilation control device according to the first aspect of the present invention, the traffic volume and the vehicle speed of the up and down passing through the tunnel are measured, and the traffic ventilation power is determined based on the measured traffic volume and the vehicle speed. Calculate the operating direction of the ventilator so that the ventilation air in the tunnel flows in the same direction as the direction in which the calculated traffic ventilation power works, and measure the pollution concentration in the determined ventilation direction. By performing the operation number control of the ventilator so as to ventilate with a predetermined ventilation force based on the wind speed measurement value, it is possible to effectively perform tunnel ventilation with a small number of operation of the ventilator,
Energy saving can be achieved.

Further, by switching the ventilation direction at an appropriate timing determined by the ventilation direction switching determination means, it is possible to prevent the contamination concentration in the tunnel from being deteriorated when the ventilation direction is switched as much as possible.

According to a second aspect of the present invention, there is provided the tunnel ventilation control device according to the first aspect of the present invention, wherein a future period is determined at regular intervals based on the traffic volume measured by the traffic volume measuring means. A traffic volume predicting unit for calculating a predicted value of the traffic volume is provided, and a traffic ventilation force acting on the tunnel is calculated based on the predicted value of the traffic volume and the vehicle speed measured by the traffic volume measuring unit.

Therefore, in the tunnel ventilation control device according to the second aspect of the present invention, the traffic volume and vehicle speed of the up and down passages passing through the tunnel are measured, and the future traffic volume is predicted based on the measured traffic volume. Calculate the direction in which the traffic ventilation power works based on the calculated traffic volume predicted value and the measured vehicle speed, and calculate the ventilation wind in the tunnel in the same direction as the calculated traffic ventilation power working direction. The operating direction of the ventilator is determined so that air flows, and the number of operating ventilators is controlled so that ventilation is performed in this determined ventilation direction with a predetermined ventilation force based on the measured concentration of pollution and the measured wind speed. By
In addition to having the same effect as the invention of claim 1 described above,
Since the predicted value of the traffic volume is used when calculating the traffic ventilation power, it is particularly effective for a tunnel having a large variation in the traffic volume.

According to a third aspect of the present invention, there is provided the tunnel ventilation control device according to the first aspect of the invention, wherein the future vehicle speed is determined at regular intervals based on the vehicle speed measured by the traffic volume measuring means. And a traffic ventilation force acting on the tunnel is calculated based on the vehicle speed prediction value and the traffic volume measured by the traffic volume measurement unit.

Therefore, in the tunnel ventilation control device according to the third aspect of the present invention, the traffic volume and the vehicle speed of the up and down roads passing through the tunnel are measured, and the future vehicle speed predicted value is calculated based on the measured vehicle speed. Calculate, calculate the direction in which the traffic ventilation force works based on the calculated vehicle speed prediction value and the measured traffic volume, and flow the ventilation wind in the tunnel in the same direction as the calculated direction in which the traffic ventilation force works. By determining the operating direction of the ventilator, by controlling the number of operating ventilators to ventilate with a predetermined ventilation force based on the measured concentration of pollution and the measured wind speed in the determined ventilation direction, In addition to having the same effect as the first aspect of the present invention, since the predicted value of the vehicle speed is used when calculating the traffic ventilation power,
This is particularly effective for tunnels with large fluctuations in vehicle speed (due to congestion, etc.).

Further, according to the tunnel ventilation control device of the present invention, in the tunnel ventilation control device of the first aspect of the present invention, based on the traffic volume and the vehicle speed measured by the traffic volume measuring means, the tunnel ventilation control device is provided. A traffic volume predicting means for calculating a predicted value of a future traffic volume and a vehicle speed is provided, and a traffic ventilation force acting on the tunnel is calculated based on the predicted traffic volume value and the predicted vehicle speed value.

Therefore, in the tunnel ventilation control device according to the fourth aspect of the present invention, the traffic volume and the vehicle speed of the up and down passing through the tunnel are measured, and the future traffic volume is calculated based on the measured traffic volume and the vehicle speed. Calculate the traffic prediction value and the vehicle speed prediction value, calculate the direction in which the traffic ventilation power works based on the calculated traffic volume prediction value and the vehicle speed prediction value, and calculate the direction in which the calculated traffic ventilation force works in the same direction. The operation direction of the ventilator is determined so that the ventilation wind flows in the tunnel, and the operation of the ventilator is performed in the determined ventilation direction so as to ventilate with a predetermined ventilation force based on the measured concentration of pollution and the measured wind speed. By performing the control of the number of vehicles, in addition to having the same effect as the invention of the above-described claim 1, since the predicted values of the traffic volume and the vehicle speed are used when calculating the traffic ventilation force, the traffic volume and the vehicle speed are reduced. Large fluctuation It is particularly effective for the tunnel (by traffic congestion, etc.).

On the other hand, a tunnel ventilation control device according to a fifth aspect of the present invention comprises a pressure measuring means for measuring the air pressure at both pits of the tunnel, and the pressure of the tunnel at regular intervals based on the pressure measured by the pressure measuring means. Based on the two-head pressure difference calculating means for calculating the pressure difference between both wells, and based on the two-head pressure difference calculated by the two well pressure difference calculating means, the ventilation wind in the tunnel is changed from the higher pressure to the lower pressure. Ventilation direction determining means for determining the operating direction of the ventilator to flow, and ventilation direction switching determining means for determining the timing of switching the operating direction of the ventilator based on the respective measurement values by the pollution concentration meter and the wind direction anemometer, At the switching timing determined by the ventilation direction switching determining means, so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determining means,
Ventilator control means for controlling the number of operating ventilators.

Therefore, in the tunnel ventilation control device according to the fifth aspect of the present invention, for a tunnel in which pressure measuring means is installed at both tunnel entrances, the air pressure at both tunnel entrances is measured, and the measured pressure value is used as a basis. Calculate the pressure difference between both wellheads, and determine the operating direction of the ventilator so that the ventilation air in the tunnel flows from the higher pressure to the lower pressure based on the calculated pressure difference between both wellheads, By controlling the number of operating ventilators in the determined ventilation direction so as to ventilate with a predetermined ventilation force based on the measured value of the concentration of contamination and the measured value of the wind speed, the same effect as the invention of claim 1 is obtained. Can play.

The tunnel ventilation control device of the invention according to claim 6 is the same as the tunnel ventilation control device according to claim 5 above, particularly when the tunnel has an evacuation pit adjacent to the main tunnel. Instead of the air pressure measuring means, a wind speed measuring means is provided in the evacuation pit and measures the wind direction and wind speed in the evacuation mine, and based on this wind speed, the pressure difference between the two pits of the tunnel is calculated at regular intervals. I have.

Therefore, in the tunnel ventilation control device according to the present invention, the wind speed in the evacuation pit is measured for the tunnel having the evacuation pit in which the wind speed measuring means is installed, and the measured wind speed is measured. Based on the pressure difference between the two wellheads, the operating direction of the ventilator is determined based on the calculated pressure difference between the two wellheads so that the ventilation air in the tunnel flows from the higher pressure to the lower pressure. By controlling the number of operating ventilators in the determined ventilation direction so as to ventilate with a predetermined ventilation force based on the measured value of the concentration of contamination and the measured value of the wind speed, the same operation as the invention of the above-mentioned claim 1 is performed. Can be played.

On the other hand, a tunnel ventilation control device according to a seventh aspect of the present invention combines a part of the tunnel ventilation control devices according to the first and fifth aspects of the present invention, and calculates the traffic ventilation calculated by the traffic ventilation force calculating means. The natural ventilation force in the tunnel is calculated based on the power and the two-head pressure difference calculated by the two-head pressure difference calculating means, and the operation direction of the ventilator is determined so that the natural ventilation force is used as a tailwind. I have to.

Therefore, in the tunnel ventilation control device according to the seventh aspect of the present invention, the traffic volume and the vehicle speed of the up and down passing through the tunnel are measured for the tunnel in which the barometric pressure measuring means is installed at both tunnel entrances. Calculate the traffic ventilation power based on the measured traffic volume and vehicle speed, simultaneously measure the air pressure at both tunnel entrances, and calculate the pressure difference between both entrances based on the measured pressure measurement values. The natural ventilation power is calculated by adding the obtained traffic ventilation power and the pressure difference between both wellheads, and the operation direction of the ventilator so that the ventilation wind in the tunnel flows in the same direction as the direction in which the natural ventilation power works. And determine
By controlling the number of operating ventilators in the determined ventilation direction so as to ventilate with a predetermined ventilation force based on the measured value of the concentration of contamination and the measured value of the wind speed, the same effect as the invention of claim 1 is obtained. It can play even more effectively.

The tunnel ventilation control device according to the eighth aspect of the present invention combines a part of the tunnel ventilation control device according to the second and fifth aspects of the present invention, and calculates the traffic ventilation calculated by the traffic ventilation force calculating means. The natural ventilation force in the tunnel is calculated based on the power and the two-head pressure difference calculated by the two-head pressure difference calculating means, and the operation direction of the ventilator is determined so that the natural ventilation force is used as a tailwind. I have to.

Therefore, in the tunnel ventilation control device according to the present invention, the traffic volume and the vehicle speed of the up and down passing through the tunnel are measured for the tunnel in which the pressure measuring means is installed at both tunnel entrances. Based on the measured traffic volume, a future traffic volume predicted value is calculated, and based on the calculated traffic volume predicted value and the measured vehicle speed, a traffic ventilation force is calculated. The pressure difference between the two wellheads is calculated based on the measured air pressure value, and the obtained traffic ventilation power and the difference between the two wellhead pressures are added to calculate the natural ventilation force. The operating direction of the ventilator is determined so that the ventilation wind in the tunnel flows in the same direction as the direction in which the force acts, and a predetermined ventilation force based on the measured concentration of contamination and the measured wind speed is used in the determined direction of ventilation. Run the ventilator as if ventilating By performing the installation control can be achieved even more effectively the same action as the invention of the claim 2.

Further, a tunnel ventilation control device according to a ninth aspect of the present invention combines a part of the tunnel ventilation control devices according to the third and fifth aspects, and the traffic ventilation calculated by the traffic ventilation power calculating means. Force, based on the two well pressure difference calculated by the two well pressure difference calculation means,
The natural ventilation power in the tunnel is calculated, and the operation direction of the ventilator is determined so as to use the natural ventilation power as a tailwind.

Therefore, in the tunnel ventilation control apparatus according to the ninth aspect of the present invention, the traffic volume and the vehicle speed of the up and down passing through the tunnel are measured for the tunnel in which the pressure measuring means is installed at both tunnel entrances. A future vehicle speed predicted value is calculated based on the measured vehicle speed, and a traffic ventilation force is calculated based on the calculated vehicle speed predicted value and the measured traffic volume. Is measured, the pressure difference between the two wellheads is calculated based on the measured pressure value, and the obtained traffic ventilation force and the difference between the two wellhead pressures are added to calculate the natural ventilation force. The operation direction of the ventilator is determined so that the ventilation air in the tunnel flows in the same direction as the working direction, and ventilation is performed in the determined ventilation direction with a predetermined ventilation force based on the measured concentration of contamination and the measured wind speed. Cab of ventilator as By performing the control, it is possible to obtain even more effective the same operation as the invention of the claim 3.

Further, a tunnel ventilation control device according to a tenth aspect of the present invention combines a part of the tunnel ventilation control devices according to the fourth and fifth aspects of the present invention, and calculates the traffic ventilation calculated by the traffic ventilation force calculating means. The natural ventilation force in the tunnel is calculated based on the power and the two-head pressure difference calculated by the two-head pressure difference calculating means, and the operation direction of the ventilator is determined so that the natural ventilation force is used as a tailwind. I have to.

Therefore, in the tunnel ventilation control apparatus according to the tenth aspect of the present invention, for a tunnel in which the pressure measuring means is installed at both tunnel entrances, the traffic volume and the vehicle speed of the up and down passage through the tunnel are measured. Based on the measured traffic volume and vehicle speed, a future traffic volume prediction value and a vehicle speed prediction value are calculated, and based on the traffic volume prediction value and the vehicle speed prediction value, a traffic ventilation force is calculated. Measure the air pressure of both wellheads, calculate the pressure difference between both wellheads based on this measured pressure value, calculate the natural ventilation power by adding the obtained traffic ventilation power and both wellhead pressure difference, The operation direction of the ventilator is determined so that the ventilation wind in the tunnel flows in the same direction as the natural ventilation force works, and the predetermined ventilation based on the measured values of the concentration of contamination and the measured wind speed in the determined direction of ventilation. I ventilate with power The number of operating control of the ventilator by performing, it is possible to obtain even more effective the same operation as the invention of the claim 4 to.

On the other hand, a tunnel ventilation control device according to an eleventh aspect of the present invention combines a part of the tunnel ventilation control devices according to the first and sixth aspects of the invention, and calculates the traffic ventilation calculated by the traffic ventilation force calculating means. Force, based on the two well pressure difference calculated by the two well pressure difference calculation means,
The natural ventilation power in the tunnel is calculated, and the operation direction of the ventilator is determined so as to use the natural ventilation power as a tailwind.

Therefore, in the tunnel ventilation control device according to the eleventh aspect of the present invention, the traffic volume and the vehicle speed of the up and down passages passing through the tunnel are measured for the tunnel having the evacuation pit in which the wind speed measuring means is installed. Calculate the traffic ventilation power based on the measured traffic volume and vehicle speed, simultaneously measure the wind speed in the evacuation pit, calculate the pressure difference between both pits based on the measured wind speed measurement value, The natural ventilation power is calculated by adding the obtained traffic ventilation power and both wellhead pressure differences,
The operation direction of the ventilator is determined so that the ventilation wind in the tunnel flows in the same direction as the direction in which the natural ventilation power works, and a predetermined concentration based on the measured concentration of contamination and the measured wind speed is determined in the determined ventilation direction. By performing the operation number control of the ventilator so as to ventilate with the ventilation force, the same operation as the invention of claim 1 can be more effectively achieved.

A tunnel ventilation control device according to a twelfth aspect of the present invention combines a part of the tunnel ventilation control devices according to the second and sixth aspects, and calculates the traffic ventilation calculated by the traffic ventilation force calculating means. Force, based on the two well pressure difference calculated by the two well pressure difference calculation means,
The natural ventilation power in the tunnel is calculated, and the operation direction of the ventilator is determined so as to use the natural ventilation power as a tailwind.

Therefore, in the tunnel ventilation control device according to the twelfth aspect of the invention, the traffic volume and the vehicle speed of the up and down passages passing through the tunnel are measured for the tunnel having the evacuation pit in which the wind speed measuring means is installed. Based on the measured traffic volume, a future traffic volume predicted value is calculated, and based on the calculated traffic volume predicted value and the measured vehicle speed, a traffic ventilation force is calculated. Is calculated, and based on the measured wind speed, the pressure difference between the two wellheads is calculated.The obtained traffic ventilation force and the two wellhead pressure difference are added to calculate the natural ventilation force. The operating direction of the ventilator is determined so that the ventilation wind in the tunnel flows in the same direction as the direction in which the ventilation power works, and the predetermined ventilation power based on the measured concentration of contamination and the measured wind speed in the determined ventilation direction Of the ventilator to ventilate with By performing the rolling installation control can be achieved even more effectively the same action as the invention of the claim 2.

Further, a tunnel ventilation control device according to a thirteenth aspect of the present invention combines a part of the tunnel ventilation control devices according to the third and sixth aspects of the invention, and calculates the traffic ventilation calculated by the traffic ventilation force calculating means. The natural ventilation force in the tunnel is calculated based on the power and the two-head pressure difference calculated by the two-head pressure difference calculating means, and the operation direction of the ventilator is determined so that the natural ventilation force is used as a tailwind. I have to.

Therefore, in the tunnel ventilation control device according to the thirteenth aspect of the present invention, for a tunnel having an evacuation pit in which a wind speed measuring means is installed, the traffic volume and vehicle speed of the up and down passages passing through the tunnel are measured. Based on the measured vehicle speed, a future vehicle speed prediction value is calculated, and based on the calculated vehicle speed prediction value and the measured traffic volume, a traffic ventilation force is calculated, and simultaneously, a wind speed in the evacuation pit is measured. Then, based on the measured wind speed measurement value, the pressure difference between the two wellheads is calculated, and the obtained traffic ventilation force and the difference between the two wellhead pressures are added to calculate the natural ventilation force. The operating direction of the ventilator is determined so that the ventilation wind in the tunnel flows in the same direction as the direction in which the air works, and the ventilation is performed in this determined ventilation direction with the predetermined ventilation power based on the measured values of the concentration of contamination and the measured wind speed. Driving a ventilator to By performing several control can be achieved even more effectively the same action as the invention of the claim 3.

Further, a tunnel ventilation control device according to a fourteenth aspect of the present invention combines a part of the tunnel ventilation control devices according to the fourth and sixth aspects of the present invention, and the traffic calculated by the traffic ventilation power calculating means. Based on the ventilation power and the two-head pressure difference calculated by the two-head pressure difference calculation means, the natural ventilation power in the tunnel is calculated, and the operation direction of the ventilator is determined so as to use this natural ventilation power as tailwind. Like that.

Accordingly, in the tunnel ventilation control device according to the fourteenth aspect of the present invention, the traffic volume and the vehicle speed of the up and down passing through the tunnel are measured for the tunnel having the evacuation pit in which the wind speed measuring means is installed. Calculating a future traffic volume prediction value and a vehicle speed prediction value based on the measured traffic volume and the vehicle speed, calculating a traffic ventilation force based on the calculated traffic volume prediction value and the vehicle speed prediction value, At the same time, the wind speed in the evacuation pit is measured, the pressure difference between the two entrances is calculated based on the measured wind speed value, and the obtained traffic ventilation power and the pressure difference between both entrances are added to calculate the natural ventilation power. Calculate and determine the operation direction of the ventilator so that the ventilation wind in the tunnel flows in the same direction as the direction in which the natural ventilation power works, and based on the measured concentration of pollution and the measured wind speed in the determined ventilation direction Ventilation with the prescribed ventilation power It can exhibit the same effects as the invention of the claim 4 to perform the operation number control of the ventilation machine so that even more effective.

[0043]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(First Embodiment: Corresponding to Claims 1 to 4) In this embodiment, the traffic volume and the vehicle speed passing through the tunnel (the past average value of the traffic volume and the vehicle speed, or the traffic volume) And the future predicted value of vehicle speed) to calculate the traffic ventilation force acting on the tunnel, and determine the operating direction (ventilation direction) of the ventilator according to the value of the traffic ventilation force. .

FIG. 1 is a block diagram showing an example of a system configuration of a tunnel ventilation control device according to the present embodiment.
, The tunnel 1 is a road tunnel of a vertical flow ventilation system of two-way traffic, and the upward direction is from one wellhead (hereinafter, referred to as A wellhead) to the other wellhead (hereinafter, referred to as B wellhead), and the downward direction. Is the opposite direction.

At a predetermined location in the tunnel 1, a plurality (n) of jet fans (JF) 3-1 and 3 are provided.
, ..., 3-n are installed as ventilators.

Further, in the tunnel 1, fume transmittance (VI) meters 4-1 and 4-2, which are pollution concentration meters, and CO concentration meters 5-1 and 5-2 are installed, respectively. (AV) A total of 6-1 are installed.

Further, on the road near the entrance A of the tunnel 1, in order to measure the traffic and the vehicle speed of the vehicle passing through the tunnel 1 and going up and down, for example, a traffic flow measurement such as a loop traffic counter is used. Means (TC) 8
Is installed.

On the other hand, the tunnel ventilation control device according to the present embodiment comprises a traffic volume prediction unit 10 and a traffic ventilation power calculation unit 11.
Ventilation direction determining means 13 and ventilation direction switching determining means 1
4, ventilation feedback means 7, and ventilator control means 1
5 is provided.

The traffic volume estimating means 10 comprises a traffic volume measuring means 8
Based on the traffic volume and the vehicle speed measured by the above, the predicted values of the future traffic volume and the vehicle speed are calculated at regular intervals.

The traffic ventilation power calculation means 11 calculates the traffic ventilation power acting on the tunnel 1 on the basis of the traffic volume predicted value and the vehicle speed predicted value calculated by the traffic volume prediction means 10.

Based on the traffic ventilation power calculated by the traffic ventilation power calculation means 11, the ventilation direction determination means 13 causes the jet fan 3-1 to flow ventilation air in the tunnel 1 in the same direction as the traffic ventilation power. , 3-2,..., 3-n.

The ventilation direction switching determining means 14 is provided with a VI meter 4-
1,4-2, CO total 5-1 and 5-2, and AV total 6-
.., 3-n are determined based on the respective measurement values obtained in Step 1.

The ventilation feedback means 7 has a VI meter 4-
1,4-2, CO total 5-1 and 5-2, and AV total 6-
, 3-n are determined based on the respective measurement values obtained in Step 1.

The ventilator control means 15 controls the number of the jet fans 3-1 and 3 by the number determined by the ventilation feedback control means 7 so that the ventilation is performed in the ventilation direction determined by the ventilation direction determination means 13 with a predetermined ventilation force. -2, ..., 3-
n, and performs switching control to switch the ventilation direction at the switching timing determined by the ventilation direction switching determining means 14.

Next, the operation of the tunnel ventilation control device according to the present embodiment configured as described above will be described.

In FIG. 1, the traffic volume measuring means 8
The traffic volume (the traffic volume of each of large and small vehicles) and the vehicle speed of the ascending vehicles entering the tunnel 1 from the entrance A
In addition, the traffic volume (the traffic volume for each of the large and small vehicles) and the vehicle speed of the descending vehicle exiting from the entrance A are measured.

The data measured by the traffic volume measuring means 8 is as follows.

The number of large vehicles going up (vehicle / 5 minutes) The number of small vehicles going up (vehicle / 5 minutes) The vehicle speed going up Km / h) The number of large vehicles going down (vehicle / 5 minutes) The number of small vehicles going down (vehicles / 5) Minute) ・ Descent vehicle speed (Km / h) Further, by this traffic volume measuring means 8, the traffic volume is integrated and the vehicle speed is averaged in units of T time (1 hour in this example) to obtain the following. Is calculated.

[0060]-up for large vehicle time traffic: N _UL (table / h) · up small cars time traffic: N _US (stand / h) · up _{speed: V tU (Km / h)} · down large vehicles time traffic : N _DL (vehicles / h) ・ Downward small car hourly traffic volume: N _DS (vehicles / h) ・ Descent vehicle speed: V _tD (Km / h) Next, the traffic volume prediction means 10 Predict vehicle speed.

Various methods can be considered as the prediction method used in the traffic amount prediction means 10. In the present embodiment, the following method is used. Since this prediction method is a known technique, detailed mathematical formulas and the like are omitted,
Only an outline will be described.

That is, the traffic volume prediction means 10 stores the traffic volume and the vehicle speed measured by the traffic volume measurement means 8, and creates an average fluctuation pattern up to the previous day.

As the variation patterns, for example, the following five types are prepared.

[Example of fluctuation pattern]-Weekdays: (Tuesday to Friday)-Before holidays: (Saturday, the day before holidays specified)-Holidays: (Sunday, holidays specified day)-After holidays: (Monday, the day after holidays specified day)・ Singular days: (New Year holidays, Bon Festival, Golden Week, etc.) Traffic volume and vehicle speed are estimated based on the above fluctuation pattern corresponding to the forecast day, and the autoregressive model coefficients are estimated by the Kalman filter based on the past several measured values. It is done by doing.

As a result, the following predicted values can be calculated.

· Upward large vehicle hour traffic volume predicted value: N
_ULP (stand / h) · up small cars time traffic prediction value: N _USP (stand / h) · up vehicle speed predicted _{value: V tUP (Km / h)} · down large vehicles time traffic volume predicted value: N _DLP (vehicles / h) ・_Driving time predicted value of small downhill car: N _DSP (vehicle / h) ・ Predicted value of downhill vehicle speed: V _tDP (Km / h) calculate.

This traffic ventilation power can be calculated by the following equation.

[0068]

(Equation 1)

[0069] Here, [Delta] P _t: Transport ventilation force [Pa] ρ: air density _{^{[kg / m 3] A r}} : roadway cross-sectional area _[m ^2] V tUS: uplink average vehicle speed [m / s] V _tDS: downlink average vehicle speed [m / s] n _U: uplink tunnel Stock number [units] n _D: downlink tunnel Stock number [units] n _U: uplink time traffic [units / h] n _D: downlink time traffic [units / H] P _tU : Incorporation rate of large vehicles going up [−] P _tD : Incorporation rate of large vehicles going down [−] A _L : Large vehicle equivalent resistance area [m ² ] _AS : Small vehicle equivalent resistance area [m ² ] L: The total length of the tunnel [m].

[0070] Incidentally, the _{V tUS, V tDS, N U} , N D,
P _tU and P _tD can be calculated based on the value measured by the traffic volume measuring means 8 as follows.

[0071] _{V tUS = V tU · 1000/3600 V} tDS = V tD · 1000/3600 N U = N UL + N US N D = N DL + N DS P tU = N UL / N U P tD = N DL / N _D in this example, the transport ventilator force calculating means 11, using each predicted value of the traffic volume and vehicle speed, calculates the traffic ventilation force [Delta] P _t.

That is: · Upward large vehicle hourly traffic volume predicted value: N _ULP (vehicle / h) · Upward small vehicle hourly traffic volume predicted value: N _USP (vehicle / h) · Upward vehicle speed predicted value: V _tUP (Km / h) ) and downlink large vehicles time traffic volume prediction value: N _DLP (base / h) and downlink small cars time traffic prediction value: N _DSP (base / h) and downlink speed prediction value: V _tDP (Km / h) Next, the ventilation direction setting unit 13, if the value of the transport ventilator force [Delta] P _t calculated by the traffic ventilating force calculating means 11 is positive, since the transportation ventilation force acts in the uplink to determine the ventilation direction and upstream, reverse traffic ventilation if the value of the force ΔP _t is negative, transportation ventilation force to determine the ventilation direction and down because the work in the downstream direction.

The processing in each of the above means is performed at regular intervals of one hour (T).

Next, the ventilation direction switching determining means 14
A decision is made as to whether or not to switch the ventilation direction, and the timing for switching is determined.

That is, when the ventilation direction determined by the ventilation direction determining means 13 is opposite to the current one, the timing at which the following condition is satisfied is detected instead of switching the ventilation direction immediately, and the actual timing is detected. The ventilation direction switching command is output to the ventilator control means 15.

(1) The time T _C or more (2 hours in this example) has elapsed since the previous switching. (2) The measured values of the VI meters 4-1 and 4-2 are all equal to or greater than a set value (for example, 50 [%]). (3) The measured values of the CO concentration meters 5-1 and 5-2 are all equal to or greater than a set value (for example, 30 [ppm]). (4) The absolute value of the wind speed in the tunnel 1 is equal to or less than a set value (for example, 3 [m / s]). (5) The total traffic volume of up and down is set value (for example, 300
[Table / h]) (6) When performing traffic volume prediction, the total traffic volume in the up and down directions is a set value (for example, 300 [vehicles / h]).

As described above, the reason why the actual ventilation direction is switched while determining the timing at which the conditions (1) to (6) are satisfied is that when the ventilation direction is switched, the wind speed in the tunnel 1 is reduced. This is because it is necessary to suppress the deterioration of the contamination concentration as much as possible, since the contamination concentration is likely to deteriorate because the concentration temporarily decreases to 0 [m / s].

If the above condition is not satisfied even after one hour has passed, it is determined again to switch the ventilation direction.

Next, the jet fans 3-1 and 3-2 are normally operated by the ventilator control means 15 in accordance with the operation number command based on the pollution concentration in the tunnel 1 and the wind direction and wind speed instructed by the ventilation feedback control means 7. ,..., 3-n, the ventilation direction switching determining means 14
When a ventilation direction switching command is received from the controller, control is performed to switch the previous ventilation direction to the opposite direction.

The procedure for switching the ventilation direction is as follows.

(1) The number of currently operated jet fans 3-1, 3-2,..., 3-n is stored. (2) The ventilation feedback control by the ventilation feedback control means 7 is temporarily suspended. (3) All jet fans 3-1, 3-2, ..., 3-
Stop n. (4) The operation is resumed in the ventilation direction determined by the ventilation direction determining means 13 by the number stored in (1). (5) The ventilation feedback control by the ventilation feedback control means 7 is restarted.

As described above, in the tunnel ventilation control apparatus of the present embodiment, the tunnel 1
According to the direction in which the traffic ventilation power works, the ventilator (jet fan 3-1, jet fan 3-1,
3-2,..., 3-n) are operated only by the required number, so that tunnel ventilation can be effectively performed by the number of operating units with a small number of ventilators, and energy saving can be achieved. .

Further, since the ventilation direction is switched at an appropriate timing determined by the ventilation direction switching determination means 14, it is possible to prevent the contamination concentration in the tunnel 1 from being deteriorated as much as possible when the ventilation direction is switched. Become.

Further, since the predicted values of the traffic volume and the vehicle speed are used when calculating the traffic ventilation power, it is particularly effective for a tunnel where the traffic volume and the vehicle speed fluctuate greatly (due to the occurrence of traffic congestion).

[0085] (Modification 1) In the above example, using the predicted value of the traffic volume and speed, has been described for calculating the traffic ventilation force [Delta] P _t acting on the tunnel 1. However, for example, the aforementioned By omitting the traffic volume prediction means 10 and using the traffic volume and the vehicle speed measured by the traffic volume measurement means 8,
It may be calculated by the traffic ventilating force calculating means 11 transportation ventilation force [Delta] P _t acting on the tunnel 1.

[0086] In this case, the traffic volume of the large-sized vehicle going up: N _UL (vehicle / h) • The traffic volume of the small-sized vehicle going up: N _US (vehicle / h) • The vehicle speed going up: V _tU (Km / h) Traffic volume: N _DL (vehicles / h) ・ Driving time of small vehicles: N _DS (vehicles / h) ・ Vehicle speed down: V _tD (Km / h) (Modification 2) In the above example, traffic volume and vehicle speed using each predicted value has been described for calculating the traffic ventilation force [Delta] P _t acting on the tunnel 1. However, for example, traffic traffic volume prediction value calculated by the prediction unit 10, and traffic volume measurement Using the vehicle speed measured by the means 8,
It may be calculated by the traffic ventilating force calculating means 11 transportation ventilation force [Delta] P _t acting on the tunnel 1.

[0087] In this case, the up large vehicles time traffic volume predicted value: N _ULP (stand / h) · up small cars time traffic prediction value: N _USP (stand / h) · up _{speed: V tU (Km / h)} · downlink large vehicle time traffic volume prediction value: N _DLP (base / h) · downlink small cars time traffic prediction value: N _DSP (base / h) · downlink _{speed: V tD (Km / h)} ( modification 3) the above in the example, using the predicted value of the traffic volume and speed, has been described for calculating the traffic ventilation force [Delta] P _t acting on the tunnel 1. However, for example, vehicle speed prediction calculated by the traffic amount predicting means 10 value, and the traffic volume using the traffic amount measured by the measuring means 8, may be calculated by the traffic ventilating force calculating means 11 transportation ventilation force [Delta] P _t acting on the tunnel 1.

[0088] In this case, the up large vehicles time traffic: N _UL (table / h) · up small cars time traffic: N _US (stand / h) · up vehicle speed predicted _{value: V tUP (Km / h)} · down large Vehicle hourly traffic volume: N _DL (vehicles / h) ・ Downward small vehicle hourly traffic volume: N _DS (vehicles / h) ・ Downward vehicle speed predicted value: V _tDP (Km / h) (Second Embodiment: Claim 5) In the present embodiment, the operation direction (ventilation direction) of the ventilator is determined based on the values measured by the barometers installed at both pits of the tunnel.

FIG. 2 is a block diagram showing an example of the system configuration of the tunnel ventilation control apparatus according to the present embodiment. The same parts as those in FIG.
Here, only different parts will be described.

That is, as shown in FIG. 2, the tunnel ventilation control device of the present embodiment omits the traffic volume measuring means 8, the traffic volume predicting means 10, and the traffic ventilation power calculating means 11 in FIG. In place of the above, barometers (P) 9-1 and 9-2 as barometric pressure measuring means,
2 is provided.

The barometers 9-1 and 9-2 measure the air pressure at both the entrances A and B of the tunnel 1, respectively.

The two wellhead pressure difference calculating means 12 is provided with a barometer 9-
Based on the air pressure measured by 1, 9-2, the pressure difference between the A and B wellheads of the tunnel 1 is calculated at regular intervals.

The ventilation direction determining means 13 is based on the pressure difference between the two wells calculated by the pressure difference calculating means 12 between the two wells.
Jet fans 3-1, 3-2,..., 3-
Determine the n driving directions.

Next, the operation of the tunnel ventilation control device according to the present embodiment configured as described above will be described.

In FIG. 2, the barometers 9-1 and 9-2 measure the air pressures at the entrances A and B, respectively. Then, the measured A, the measured value of pressure B both wellhead, P _A [Pa], respectively, and P _B [Pa].

Further, the past several times (settable) are averaged by the barometers 9-1 and 9-2 to _obtain P _Aave [Pa] and P _Bave [Pa], respectively.

Next, the pressure difference calculating means 12 for both wellheads
The pressure difference ΔP _n [Pa] between both the wells A and B is calculated.

[0098]

(Equation 2)

Next, the two-head pressure difference Δ calculated by the two-head pressure difference calculating means 12 by the ventilation direction determining means 13.
If the value of P _n is positive, since the pressure A wellhead is higher than B wellhead to determine the ventilation direction and uplink, both the wellhead pressure difference in opposite [Delta] P _n
If the value of is negative, the ventilation direction is determined to be down since the air pressure at the B port is higher than the A port.

The processing in each of the above means is performed at regular intervals of one hour (T).

Next, the ventilation direction switching determining means 14
A decision is made as to whether or not to switch the ventilation direction, and the timing for switching is determined.

That is, when the ventilation direction determined by the ventilation direction determining means 13 is opposite to the current direction, the timing at which the following condition is satisfied is detected instead of switching the ventilation direction immediately, and the actual timing is determined. The ventilation direction switching command is output to the ventilator control means 15.

(1) The time _Tc or more (in this example, 2 hours) has elapsed since the previous switching. (2) The measured values of the VI meters 4-1 and 4-2 are all equal to or greater than a set value (for example, 50 [%]). (3) The measured values of the CO concentration meters 5-1 and 5-2 are all equal to or greater than a set value (for example, 30 [ppm]). (4) The absolute value of the wind speed in the tunnel 1 is equal to or less than a set value (for example, 3 [m / s]). (5) The total traffic volume of up and down is set value (for example, 300
[Table / h]) (6) When performing traffic volume prediction, the total traffic volume in the up and down directions is a set value (for example, 300 [vehicles / h]).

As described above, the reason why the actual switching of the ventilation direction is performed while determining the timing at which the above conditions (1) to (6) are satisfied is that when the ventilation direction is switched, the wind speed in the tunnel 1 is reduced. This is because it is necessary to suppress the deterioration of the contamination concentration as much as possible, since the contamination concentration is likely to deteriorate because the concentration temporarily decreases to 0 [m / s].

If the above condition is not satisfied even after one hour has elapsed, it is determined again that the ventilation direction should be switched.

Next, the jet fans 3-1 and 3-2 are normally operated by the ventilator control means 15 in accordance with the operation number command based on the pollution concentration in the tunnel 1 and the wind direction and wind speed, which are instructed by the ventilation feedback control means 7. ,..., 3-n, the ventilation direction switching determining means 14
When a ventilation direction switching command is received from the controller, control is performed to switch the previous ventilation direction to the opposite direction.

The procedure for switching the ventilation direction is as follows.

(1) The number of currently operated jet fans 3-1, 3-2,..., 3-n is stored. (2) The ventilation feedback control by the ventilation feedback control means 7 is temporarily suspended. (3) All jet fans 3-1, 3-2, ..., 3-
Stop n. (4) The operation is resumed in the ventilation direction determined by the ventilation direction determining means 13 by the number stored in (1). (5) The ventilation feedback control by the ventilation feedback control means 7 is restarted.

As described above, in the tunnel ventilation control apparatus of the present embodiment, the tunnel 1
A ventilator (jet fans 3-1, 3-2, ..., 3-n) is required so that ventilation in the tunnel 1 flows from the higher pressure to the lower pressure according to the air pressure at both the A and B wellheads. Since the operation is performed only by the number of vehicles, tunnel ventilation can be effectively performed by the number of vehicles operated with a small number of ventilators, and energy can be saved.

Further, since the ventilation direction is switched at an appropriate timing determined by the ventilation direction switching determination means 14, it is possible to prevent the contamination concentration in the tunnel 1 from being deteriorated as much as possible when the ventilation direction is switched. Become.

(Third Embodiment: Corresponding to Claim 6) This embodiment is intended for a tunnel having an evacuation gallery adjacent to a main tunnel, and a value measured by an anemometer installed in the evacuation gallery. Is used to determine the operation direction (ventilation direction) of the ventilator.

FIG. 3 is a block diagram showing an example of the system configuration of the tunnel ventilation control apparatus according to the present embodiment. The same parts as those in FIG.
Here, only different parts will be described.

That is, as shown in FIG. 3, the tunnel ventilation control apparatus according to the present embodiment is directed to a tunnel 1 having an evacuation pit 2 adjacent to a main tunnel, and the barometers 9-1 and 9-1 shown in FIG. 9-2 is omitted, and instead of this,
An evacuation pit 2 adjacent to the tunnel 1 is provided with an anemometer (AV) 6-2 as a wind speed measuring means.

The wind direction anemometer 6-2 measures the wind direction and wind speed in the evacuation pit 2.

The wellhead pressure difference calculating means 12 calculates the pressure difference between the wellheads A and B of the tunnel 1 at regular intervals based on the wind speed measured by the anemometer 6-2.

The ventilation direction determining means 13 is based on the two-head pressure difference calculated by the two-head pressure difference calculating means 12,
Jet fans 3-1, 3-2,..., 3-
Determine the n driving directions.

Next, the operation of the tunnel ventilation control device according to the present embodiment configured as described above will be described.

In FIG. 3, the wind direction and anemometer 6-2 indicate
The wind speed in the evacuation pit 2 is measured. The measured value of the measured wind speed is defined as U _e [m / s].

Further, the past several times (settable) are averaged by the anemometer 6-2, and
_eave [m / s].

Next, the two wellhead pressure difference calculating means 12 calculates
The pressure difference ΔP _n [Pa] between the A and B wellheads is calculated according to the following equation.

[0121]

(Equation 3)

In the above equation, ΔP _n : pressure difference between both wellheads [Pa] ζ _e : inlet loss coefficient [-] λ: wall friction loss coefficient [-] _Le : total length of evacuation pit [m] _De : evacuation Typical pit size [m] ρ: Air density [kg / m ³ ] U _eave : Wind speed in the evacuation pit (upward direction is positive) [m /
s].

Then, the ventilation direction determining means 13 calculates the two-head pressure difference Δ calculated by the two-head pressure difference calculating means 12.
If the value of P _n is positive, since the pressure A wellhead is higher than B wellhead to determine the ventilation direction and uplink, both the wellhead pressure difference in opposite [Delta] P _n
If the value of is negative, the ventilation direction is determined to be down.

The above-described processing in each means is performed at regular intervals of one hour (T).

Next, the ventilation direction switching determining means 14
A decision is made as to whether or not to switch the ventilation direction, and the timing for switching is determined.

That is, when the ventilation direction determined by the ventilation direction determining means 13 is opposite to the current direction, the timing at which the following condition is satisfied is detected instead of switching the ventilation direction immediately, and the actual The ventilation direction switching command is output to the ventilator control means 15.

(1) The time _{Tc has} elapsed since the previous switching (two hours in this example). (2) The measured values of the VI meters 4-1 and 4-2 are all equal to or greater than a set value (for example, 50 [%]). (3) The measured values of the CO concentration meters 5-1 and 5-2 are all equal to or greater than a set value (for example, 30 [ppm]). (4) The absolute value of the wind speed in the tunnel 1 is equal to or less than a set value (for example, 3 [m / s]). (5) The total traffic volume of up and down is set value (for example, 300
[Table / h]) (6) When performing traffic volume prediction, the total traffic volume in the up and down directions is a set value (for example, 300 [vehicles / h]).

As described above, the reason why the actual ventilation direction is switched while determining the timing at which the above conditions (1) to (6) are satisfied is that when the ventilation direction is switched, the wind speed in the tunnel 1 is reduced. This is because it is necessary to suppress the deterioration of the contamination concentration as much as possible, since the contamination concentration is likely to deteriorate because the concentration temporarily decreases to 0 [m / s].

If the above condition is not satisfied even after one hour has elapsed, the determination of switching the ventilation direction is made again.

Next, the ventilator control means 15 normally operates the jet fans 3-1 and 3-2 in accordance with the number of operating units commanded by the ventilation feedback control means 7 based on the pollution concentration in the tunnel 1 and the wind direction and speed. ,..., 3-n, the ventilation direction switching determining means 14
When a ventilation direction switching command is received from the controller, control is performed to switch the previous ventilation direction to the opposite direction.

The procedure for switching the ventilation direction is as follows.

(1) The number of currently operated jet fans 3-1, 3-2,..., 3-n is stored.

(2) The ventilation feedback control by the ventilation feedback control means 7 is temporarily suspended.

(3) All jet fans 3-1 and 3-
2, ..., 3-n are stopped.

(4) The operation is restarted in the ventilation direction determined by the ventilation direction determining means 13 by the number stored in (1).

(5) The ventilation feedback control by the ventilation feedback control means 7 is restarted.

As described above, in the tunnel ventilation control device of the present embodiment, especially when the tunnel 1 having the evacuation pit 2 is targeted, the anemometer 6 installed in the evacuation pit 2 is used.
The pressure difference between the A and B wellheads of the tunnel 1 is calculated based on the measurement value by -2, and the pressure difference is higher or lower according to the time difference between the A and B wellhead pressures of the tunnel 1 that changes with time. Since the required number of ventilators (jet fans 3-1, 3-2,..., 3-n) are operated so that the ventilation in the tunnel 1 flows, it is effective to operate with a small number of ventilators. Tunnel ventilation can be performed, and energy saving can be achieved.

Further, since the ventilation direction is switched at an appropriate timing determined by the ventilation direction switching determining means 14, it is possible to prevent the pollution concentration in the tunnel 1 from being deteriorated as much as possible when the ventilation direction is switched. Become.

(Fourth Embodiment: Corresponding to Claims 7 to 10) In the present embodiment, the pressure difference between the two wells calculated based on the measured values by the barometers installed at both the wells of the tunnel. And the traffic ventilation power acting on the tunnel calculated based on the traffic volume and the vehicle speed passing through the tunnel, to calculate the natural ventilation power in the tunnel, and use the calculated natural ventilation power as a tailwind. Thus, the operation direction (ventilation direction) of the ventilator is determined.

FIG. 4 is a block diagram showing an example of the system configuration of the tunnel ventilation control device according to the present embodiment. The same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted. Now, only the different parts will be described.

That is, as shown in FIG. 4, the tunnel ventilation control apparatus according to the present embodiment uses an automobile passing through the tunnel 1 calculated by the ventilation direction calculating means 11 in FIG. The natural ventilation power in the tunnel 1 is calculated by adding the traffic ventilation power of the tunnel 1 and the pressure difference between the two entrances A and B of the tunnel 1 calculated by the pressure difference calculation means 12 in both tunnels in FIG. Jet fan 3-1 so that the natural ventilation power
3-2... 3-n are determined.

Next, the operation of the tunnel ventilation control device according to the present embodiment configured as described above will be described.

The traffic volume measuring means 8, the traffic volume predicting means 10, the traffic ventilation force calculating means 11, the barometers 9-1, 9-
2. Since the operation of each means of the two wellhead pressure difference calculating means 12 is the same as that of each of the first and second embodiments described above, a detailed description thereof will be omitted, and only an outline will be given here. State.

In FIG. 4, the traffic volume measuring means 8
The traffic volume and the vehicle speed of the up and down vehicles passing through the tunnel 1 are measured.

Next, based on the traffic volume and the vehicle speed measured by the traffic volume measuring device 8 by the traffic volume predicting device 10,
Calculate predicted traffic volume and vehicle speed.

Next, the traffic ventilation force calculating means 11 enters the tunnel 1 on the basis of the traffic volume and the vehicle speed measured by the traffic volume measuring means 8 or the traffic volume and the vehicle speed calculated by the traffic volume predicting means 10. Working traffic ventilation power ΔP
Calculate _t .

[0147] The method of calculating the traffic ventilation force [Delta] P _t, as in the formula (1) in the case of the first embodiment described above are as shown below.

[0148]

(Equation 4)

On the other hand, the air pressures at the entrances A and B are measured by the air pressure measuring means 9-1 and 9-2, respectively.

Next, the two wellhead pressure difference calculating means 12 calculates
The pressure difference ΔP _MT [Pa] between the wells A and B is calculated.

The method of calculating the pressure difference ΔP _MT between the two wells is as follows.
Similarly to the equation (2) in the case of the above-described second embodiment,
It is as shown below.

[0152]

(Equation 5)

[0153] Next, the ventilation direction setting unit 13, first, the transportation ventilation force [Delta] P _t calculated by the traffic ventilating force calculating means 11, and both wellhead pressure difference [Delta] P _MT calculated by both the wellhead pressure difference calculating unit 12 To calculate the natural ventilation power ΔP _n in the tunnel 1. And this natural ventilation power Δ
If the value of P _n is a positive, ventilation direction is determined as the uplink, the value of the natural ventilation force [Delta] P _n conversely if it is negative, determines a ventilation direction and downlink.

The processing in each of the above means is performed at regular intervals of one hour (T).

Next, the ventilation direction switching determining means 14
A decision is made as to whether or not to switch the ventilation direction, and the timing for switching is determined.

That is, when the ventilation direction determined by the ventilation direction determining means 13 is opposite to the current direction, the timing at which the following condition is satisfied is detected instead of switching the ventilation direction immediately, and the actual timing is determined. The ventilation direction switching command is output to the ventilator control means 15.

(1) The time _Tc or more (in this example, 2 hours) has elapsed since the previous switching. (2) The measured values of the VI meters 4-1 and 4-2 are all equal to or greater than a set value (for example, 50 [%]). (3) The measured values of the CO concentration meters 5-1 and 5-2 are all equal to or greater than a set value (for example, 30 [ppm]). (4) The absolute value of the wind speed in the tunnel 1 is equal to or less than a set value (for example, 3 [m / s]). (5) The total traffic volume of up and down is set value (for example, 300
[Table / h]) (6) When performing traffic volume prediction, the total traffic volume in the up and down directions is a set value (for example, 300 [vehicles / h]).

As described above, the reason why the actual ventilation direction is switched in view of the timing at which the above conditions (1) to (6) are satisfied is that when the ventilation direction is switched, the wind speed in the tunnel 1 is reduced. This is because it is necessary to suppress the deterioration of the contamination concentration as much as possible, since the contamination concentration is likely to deteriorate because the concentration temporarily decreases to 0 [m / s].

If the above condition is not satisfied even after one hour has elapsed, it is determined again that the ventilation direction should be switched.

Next, the ventilator control means 15 normally operates the jet fans 3-1 and 3-2 in accordance with the operation number command based on the pollution concentration in the tunnel 1 and the wind direction and wind speed instructed by the ventilation feedback control means 7. ,..., 3-n, the ventilation direction switching determining means 14
When a ventilation direction switching command is received from the controller, control is performed to switch the previous ventilation direction to the opposite direction.

The procedure for switching the ventilation direction is as follows.

(1) The number of jet fans 3-1, 3-2,..., 3-n currently operating is stored. (2) The ventilation feedback control by the ventilation feedback control means 7 is temporarily suspended. (3) All jet fans 3-1, 3-2, ..., 3-
Stop n. (4) The operation is resumed in the ventilation direction determined by the ventilation direction determining means 13 by the number stored in (1). (5) The ventilation feedback control by the ventilation feedback control means 7 is restarted.

As described above, in the tunnel ventilation control device of the present embodiment, the tunnel
In accordance with the direction in which the natural ventilation power works, which is obtained by adding the traffic ventilation power in the building and the pressure difference between the A and B wellheads, the ventilator (jet fan 3-
1, 3-2,..., 3-n) are operated only by the required number, so that tunnel ventilation can be performed effectively with a small number of operating ventilators, and energy can be saved. Becomes

Further, since the ventilation direction is switched at an appropriate timing determined by the ventilation direction switching determining means 14, it is possible to prevent the contamination concentration in the tunnel 1 from being deteriorated as much as possible when the ventilation direction is switched. Become.

Further, since the predicted values of the traffic volume and the vehicle speed are used in calculating the traffic ventilation power, it is particularly effective for a tunnel in which the traffic volume and the vehicle speed fluctuate greatly (due to the occurrence of congestion).

(Fifth Embodiment: Corresponding to Claims 11 to 14) This embodiment is directed to a tunnel having an evacuation pit adjacent to a tunnel main pit, and a wind direction and wind speed installed in the evacuation pit. The natural ventilation force in the tunnel is calculated by adding the two wellhead pressure differences calculated based on the measurement values by the gauge and the traffic ventilation force acting on the tunnel calculated based on the traffic volume and vehicle speed passing through the tunnel. The operation direction (ventilation direction) of the ventilator is determined so that the calculated natural ventilation force is used as a tailwind.

FIG. 5 is a block diagram showing an example of the system configuration of the tunnel ventilation control apparatus according to the present embodiment. The same parts as those in FIGS. 1 and 3 are denoted by the same reference numerals, and their description is omitted. Now, only the different parts will be described.

That is, as shown in FIG. 5, the tunnel ventilation control device according to the present embodiment is configured such that the vehicle that passes through the tunnel 1 calculated by the ventilation direction calculation means 11 in FIG. The natural ventilation power in the tunnel 1 is calculated by adding the traffic ventilation power of the tunnel 1 and the pressure difference between the two entrances A and B of the tunnel 1 calculated by the pressure difference calculating means 12 in both tunnels in FIG. Jet fan 3-1 so that the natural ventilation power
3-2... 3-n are determined.

Next, the operation of the tunnel ventilation control device according to the present embodiment configured as described above will be described.

The operations of the traffic volume measuring means 8, the traffic volume predicting means 10, the traffic ventilation force calculating means 11, the wind direction anemometer 6-2, and the two wellhead pressure difference calculating means 12 are described in the first section above. Since the third embodiment is the same as the third embodiment, a detailed description thereof will be omitted, and only an outline will be described here.

In FIG. 5, the traffic volume measuring means 8
The traffic volume and the vehicle speed of the up and down vehicles passing through the tunnel 1 are measured.

Next, based on the traffic volume and the vehicle speed measured by the traffic volume measuring means 8 by the traffic volume predicting means 10,
Calculate predicted traffic volume and vehicle speed.

Next, the traffic ventilation force calculating means 11 enters the tunnel 1 based on the traffic volume and the vehicle speed measured by the traffic volume measuring means 8 or the traffic volume and the vehicle speed calculated by the traffic volume predicting means 10. Working traffic ventilation power ΔP
Calculate _t .

[0174] The method of calculating the traffic ventilation force [Delta] P _t, as in the formula (1) in the case of the first embodiment described above are as shown below.

[0175]

(Equation 6)

On the other hand, the direction of the evacuation pit 2
Measure the wind direction and speed inside.

[0177] Next, the two wellhead pressure difference calculating means 12
The pressure difference ΔP _MT [Pa] between the wells A and B is calculated.

The method of calculating the pressure difference ΔP _MT between the two wells is as follows.
Similarly to the equation (2) in the case of the third embodiment described above,
It is as shown below.

[0179]

(Equation 7)

[0180] Next, the ventilation direction setting unit 13, first, the transportation ventilation force [Delta] P _t calculated by the traffic ventilating force calculating means 11, and both wellhead pressure difference [Delta] P _MT calculated by both the wellhead pressure difference calculating unit 12 To calculate the natural ventilation power ΔP _n in the tunnel 1. And this natural ventilation power Δ
If the value of P _n is a positive, ventilation direction is determined as the uplink, the value of the natural ventilation force [Delta] P _n conversely if it is negative, determines a ventilation direction and downlink.

The processing in each of the above means is performed at regular intervals of one hour (T).

Next, the ventilation direction switching judgment means 14
A decision is made as to whether or not to switch the ventilation direction, and the timing for switching is determined.

That is, when the ventilation direction determined by the ventilation direction determining means 13 is opposite to the current direction, the timing at which the following condition is satisfied is detected instead of immediately switching the ventilation direction, and the actual timing is determined. The ventilation direction switching command is output to the ventilator control means 15.

(1) The time _{Tc has} elapsed since the previous switching (two hours in this example). (2) The measured values of the VI meters 4-1 and 4-2 are all equal to or greater than a set value (for example, 50 [%]). (3) The measured values of the CO concentration meters 5-1 and 5-2 are all equal to or greater than a set value (for example, 30 [ppm]). (4) The absolute value of the wind speed in the tunnel 1 is equal to or less than a set value (for example, 3 [m / s]). (5) The total traffic volume of up and down is set value (for example, 300
[Table / h])

(6) When predicting the traffic volume, the total traffic volume of up and down is a set value (for example, 300 [vehicles / h]).

The reason why the actual switching of the ventilation direction is determined in view of the timing at which the above conditions (1) to (6) are satisfied is that when the ventilation direction is switched, the wind speed in the tunnel 1 is reduced. This is because it is necessary to suppress the deterioration of the contamination concentration as much as possible, since the contamination concentration is likely to deteriorate because the concentration temporarily decreases to 0 [m / s].

If the above condition is not satisfied even after one hour has elapsed, it is determined again that the ventilation direction should be switched.

Next, the jet fans 3-1 and 3-2 are normally operated by the ventilator control means 15 in accordance with the operation number command based on the contamination concentration in the tunnel 1 and the wind direction and wind speed instructed by the ventilation feedback control means 7. ,..., 3-n, the ventilation direction switching determining means 14
When a ventilation direction switching command is received from the controller, control is performed to switch the previous ventilation direction to the opposite direction.

The procedure for switching the ventilation direction is as follows.

(1) The number of currently operating jet fans 3-1, 3-2,..., 3-n is stored. (2) The ventilation feedback control by the ventilation feedback control means 7 is temporarily suspended. (3) All jet fans 3-1, 3-2, ..., 3-
Stop n. (4) The operation is resumed in the ventilation direction determined by the ventilation direction determining means 13 by the number stored in (1). (5) The ventilation feedback control by the ventilation feedback control means 7 is restarted.

As described above, in the tunnel ventilation control device according to the present embodiment, particularly when the tunnel 1 having the evacuation pit 2 is targeted, the traffic ventilation power in the tunnel 1 that changes depending on the time zone and both the A and B are used. In accordance with the direction in which the natural ventilation force is obtained by adding the pressure difference at the wellhead, the ventilator (jet fan 3-1, jet fan 3-1)
3-2,..., 3-n) are operated only by the required number, so that tunnel ventilation can be effectively performed by the number of operating units with a small number of ventilators, and energy saving can be achieved. .

Further, since the ventilation direction is switched at an appropriate timing determined by the ventilation direction switching determining means 14, it is possible to prevent the contamination concentration in the tunnel 1 from being deteriorated as much as possible when the ventilation direction is switched. Become.

Furthermore, since the predicted values of the traffic volume and the vehicle speed are used when calculating the traffic ventilation power, it is particularly effective for a tunnel where the traffic volume and the vehicle speed fluctuate greatly (due to the occurrence of congestion).

[0194]

As described above, according to the tunnel ventilation control apparatus of the present invention, (a) the traffic volume and the vehicle speed passing through the tunnel (the past average value of the traffic volume and the vehicle speed, or the traffic volume and the vehicle speed) One of the future forecasts)
Calculate the traffic ventilation power acting on the tunnel and determine the operation direction (ventilation direction) of the ventilator according to the value of the traffic ventilation power, or (b) the value measured by barometers installed at both tunnel entrances The operating direction (ventilation direction) of the ventilator is determined on the basis of the above, or (c) a tunnel having an evacuation tunnel adjacent to the main tunnel, based on a value measured by an anemometer installed in the evacuation tunnel. To determine the operation direction (ventilation direction) of the ventilator, or (d) the difference between the two tunnel pressures calculated based on the values measured by the barometers installed at both tunnel entrances, and the traffic passing through the tunnel. Add the traffic ventilation power working on the tunnel calculated based on the amount and the vehicle speed,
The natural ventilation power in the tunnel is calculated, and the operation direction (ventilation direction) of the ventilator is determined so that the calculated natural ventilation power is used as a tailwind. Traffic pressure acting on the tunnel calculated based on the pressure difference between the two pits calculated based on the measured value by the anemometer installed in the evacuation pit, and the traffic volume and vehicle speed passing through the tunnel Since the natural ventilation power in the tunnel is calculated by adding the power and the natural ventilation power in the tunnel is determined as a tailwind, the operation direction (ventilation direction) of the ventilator is determined. Tunnel ventilation can be effectively performed with a small number of operating machines, and energy saving can be achieved.

Further, since the ventilation direction is switched at an appropriate timing determined by the ventilation direction switching determining means, it is possible to prevent the contamination concentration in the tunnel from being deteriorated as much as possible when the ventilation direction is switched.

Further, since the predicted value of the traffic volume and / or the vehicle speed is used in calculating the traffic ventilation power, the tunnel with a large fluctuation of the traffic volume and / or the vehicle speed (due to the occurrence of congestion) is particularly used. It is valid.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a tunnel ventilation control device according to the present invention.

FIG. 2 is a block diagram showing a second embodiment of the tunnel ventilation control device according to the present invention.

FIG. 3 is a block diagram showing a third embodiment of the tunnel ventilation control device according to the present invention.

FIG. 4 is a block diagram showing a fourth embodiment of the tunnel ventilation control device according to the present invention.

FIG. 5 is a block diagram showing a fifth embodiment of the tunnel ventilation control device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Tunnel, 2 ... Evacuation pit, 3-1, 3-2 ... 3-n ... Jet fan 4-1 4-2 ... Haze transmittance meter (VI meter) 5-1 5-2 ... CO concentration meter, 6-1 and 6-2 ... wind direction anemometer, 7 ... ventilation feedback control means, 8 ... traffic volume measurement means, 9 ... barometric pressure measurement means (barometer), 10 ... traffic volume prediction means, 11 ... Traffic ventilating force calculating means, 12: Both pit pressure difference calculating means, 13: Ventilation direction determining means, 14: Ventilation direction switching determining means, 15: Ventilator control means.

Claims (14)

[Claims] 1. A method of operating a plurality of ventilators installed in a tunnel to determine a concentration of the contamination in the tunnel based on respective measurement values obtained by a pollution concentration meter and an anemometer installed in the tunnel. In the tunnel ventilation control device to be controlled, a traffic volume measuring means for measuring the traffic volume and vehicle speed of the up and down passing through the tunnel, and the tunnel based on the traffic volume and the vehicle speed measured by the traffic volume measuring device Traffic ventilation force calculating means for calculating the traffic ventilation force acting on the vehicle, based on the traffic ventilation force calculated by the traffic ventilation force calculation means, so that the ventilation wind in the tunnel flows in the same direction as the traffic ventilation force. Ventilation direction determining means for determining an operation direction of the ventilator; and a method of operating the ventilator based on respective measured values by the pollution concentration meter and the wind direction and anemometer. Ventilation direction switching determining means for determining the timing of switching, at the switching timing determined by the ventilation direction switching determining means, so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determining means, And a ventilator control means for controlling the number of operating ventilators. 2. A plurality of ventilators installed in the tunnel are operated on the basis of respective measured values by a pollution concentration meter and an anemometer installed in the tunnel to determine the concentration in the tunnel. In the tunnel ventilation control device that controls, a traffic volume measuring unit that measures the traffic volume and vehicle speed of each going up and down passing through the tunnel, based on the traffic volume measured by the traffic volume measuring unit, at regular intervals. A traffic volume predicting means for calculating a predicted value of a future traffic volume; a traffic volume acting on the tunnel based on a traffic volume predicted value calculated by the traffic volume predicting device and a vehicle speed measured by the traffic volume measuring device. Traffic ventilation power calculating means for calculating the ventilation power, and the tunnel in the same direction as the traffic ventilation power based on the traffic ventilation power calculated by the traffic ventilation power calculation means. Ventilation direction determining means for determining the operation direction of the ventilator so that the ventilation wind flows, and determining the timing of switching the operation direction of the ventilator based on the respective measurement values by the pollution concentration meter and the wind direction anemometer The number of operating the ventilators so as to ventilate at a predetermined timing in the ventilation direction determined by the ventilation direction determining means at the switching timing determined by the ventilation direction switching determining means. And a ventilator control means for performing control. 3. A plurality of ventilators installed in the tunnel are operated on the basis of respective measured values by a pollution concentration meter and an anemometer installed in the tunnel to determine the contamination concentration in the tunnel. In the tunnel ventilation control device to be controlled, a traffic volume measuring unit that measures the traffic volume and vehicle speed of the up and down passing through the tunnel, based on the vehicle speed measured by the traffic volume measuring unit,
A traffic volume prediction unit that calculates a predicted value of a future vehicle speed at regular intervals; a vehicle speed prediction value calculated by the traffic volume prediction unit; and a traffic volume measured by the traffic volume measurement unit. Traffic ventilation force calculating means for calculating the traffic ventilation force acting on the vehicle, based on the traffic ventilation force calculated by the traffic ventilation force calculation means, so that the ventilation wind in the tunnel flows in the same direction as the traffic ventilation force. Ventilation direction determination means for determining the operation direction of the ventilator, and ventilation direction switching determination means for determining the timing of switching the operation direction of the ventilator, based on the respective measurement values by the pollution concentration meter and the wind direction anemometer, At the switching timing determined by the ventilation direction switching determination means, to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means, And a ventilator control means for controlling the number of operating ventilators. 4. A plurality of ventilators installed in the tunnel are operated on the basis of respective measured values by a pollution concentration meter and an anemometer installed in the tunnel to determine the pollution concentration in the tunnel. In the tunnel ventilation control device to be controlled, a traffic volume measuring means for measuring traffic volume and vehicle speed for each going up and down passing through the tunnel, and a constant period based on the traffic volume and the vehicle speed measured by the traffic volume measuring device. A traffic volume prediction means for calculating a predicted value of a future traffic volume and a vehicle speed for each, and a traffic ventilation force acting on the tunnel based on the traffic volume predicted value and the vehicle speed predicted value calculated by the traffic volume predicted means. Traffic ventilation force calculating means, based on the traffic ventilation force calculated by the traffic ventilation force calculation means, the ventilation wind in the tunnel in the same direction as the traffic ventilation force. Ventilation direction determining means for determining the operation direction of the ventilator to flow, ventilation direction switching for determining the timing of switching the operation direction of the ventilator based on the respective measurement values by the pollution concentration meter and the wind direction anemometer Determining means for controlling the number of operating ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determining means at the switching timing determined by the ventilation direction switching determining means. Machine control means; and a tunnel ventilation control device. 5. A plurality of ventilators installed in the tunnel are operated based on respective measured values by a pollution concentration meter and an anemometer installed in the tunnel to determine the concentration of the contamination in the tunnel. In a tunnel ventilation control device that controls, a pressure measuring unit that measures the pressures of both tunnels of the tunnel, respectively, based on the pressure measured by the pressure measuring unit, a pressure difference between the tunnels at regular intervals based on the pressure measured by the pressure measuring unit. Based on both wellhead pressure difference calculating means to be calculated, and based on both wellhead pressure difference calculated by the both wellhead pressure difference calculating means, the ventilation air in the tunnel flows from the higher pressure to the lower pressure. Ventilation direction determining means for determining an operation direction of the ventilator; and an operation direction of the ventilator is switched based on respective measurement values obtained by the pollution concentration meter and the wind direction anemometer. Ventilating direction switching determining means for determining the timing, and at the switching timing determined by the ventilation direction switching determining means, the ventilator to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determining means. And a ventilator control means for controlling the number of operating units of the tunnel. 6. A plurality of ventilators installed in the tunnel based on respective measurement values obtained by a pollution concentration meter and an anemometer installed in a tunnel having an evacuation tunnel adjacent to the main tunnel of the tunnel. In a tunnel ventilation control device that operates to control the concentration of contamination in the tunnel, a wind speed measurement unit that is installed in the evacuation pit and measures a wind direction and wind speed in the evacuation pit, based on a wind speed measured by the wind speed measurement unit A two-head pressure difference calculating means for calculating the pressure difference between the two wells of the tunnel at regular intervals; and based on the two well pressure differences calculated by the two-head pressure difference calculating means, based on Ventilation direction determining means for determining the operation direction of the ventilator so as to flow the ventilation wind in the tunnel to the lower side, and each of the pollution concentration meter and the wind direction anemometer A ventilation direction switching determining means for determining a timing of switching an operation direction of the ventilator based on the measured value; and a switching direction determined by the ventilation direction switching determining means, the ventilation direction determined by the ventilation direction determining means. And a ventilator control means for controlling the number of operating said ventilators so as to ventilate at a predetermined ventilation force. 7. A plurality of ventilators installed in the tunnel are operated on the basis of respective measured values by a pollution concentration meter and an anemometer installed in the tunnel to determine a pollution concentration in the tunnel. In the tunnel ventilation control device to be controlled, a traffic volume measuring means for measuring the traffic volume and vehicle speed of the up and down passing through the tunnel, and the tunnel based on the traffic volume and the vehicle speed measured by the traffic volume measuring device Traffic ventilation force calculation means for calculating the traffic ventilation force acting on the air pressure measurement means for measuring the air pressure of both tunnels of the tunnel, based on the air pressure measured by the air pressure measurement means, the tunnel at regular intervals, A two-head pressure difference calculating means for calculating a pressure difference between both wells, a traffic ventilation power calculated by the traffic ventilation power calculating means,
And calculating the natural ventilation force in the tunnel based on the two-head pressure difference calculated by the two-head pressure difference calculating means, and determining the operation direction of the ventilator so that the natural ventilation force is used as a tailwind. Ventilation direction determination means, Ventilation direction switch determination means for determining the timing of switching the operation direction of the ventilator based on respective measured values by the pollution concentration meter and anemometer, Determination by the ventilation direction switch determination means And a ventilator control means for controlling the number of operating the ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means at the set switching timing. And tunnel ventilation control device. 8. A plurality of ventilators installed in the tunnel are operated on the basis of respective measurement values by a pollution concentration meter and an anemometer installed in the tunnel to determine a pollution concentration in the tunnel. In the tunnel ventilation control device that controls, a traffic volume measuring unit that measures the traffic volume and vehicle speed of each going up and down passing through the tunnel, based on the traffic volume measured by the traffic volume measuring unit, at regular intervals. A traffic volume predicting means for calculating a predicted value of a future traffic volume; a traffic volume acting on the tunnel based on a traffic volume predicted value calculated by the traffic volume predicting device and a vehicle speed measured by the traffic volume measuring device. Traffic ventilation power calculation means for calculating ventilation power, air pressure measurement means for measuring the air pressure at both pits of the tunnel, and the average air measured by the air pressure measurement means Based on the two wellhead pressure difference calculating means for calculating a pressure difference between both the wellhead of the tunnel at fixed intervals, transportation ventilation force calculated by said traffic ventilating force calculating means,
And calculating the natural ventilation force in the tunnel based on the two-head pressure difference calculated by the two-head pressure difference calculating means, and determining the operation direction of the ventilator so that the natural ventilation force is used as a tailwind. Ventilation direction determination means, Ventilation direction switch determination means for determining the timing of switching the operation direction of the ventilator based on respective measured values by the pollution concentration meter and anemometer, Determination by the ventilation direction switch determination means And a ventilator control means for controlling the number of operating the ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means at the set switching timing. And tunnel ventilation control device. 9. A plurality of ventilators installed in the tunnel are operated on the basis of respective measured values by a pollution concentration meter and an anemometer installed in the tunnel to determine a pollution concentration in the tunnel. In the tunnel ventilation control device to be controlled, a traffic volume measuring unit that measures the traffic volume and vehicle speed of the up and down passing through the tunnel, based on the vehicle speed measured by the traffic volume measuring unit,
A traffic volume prediction unit that calculates a predicted value of a future vehicle speed at regular intervals; a vehicle speed prediction value calculated by the traffic volume prediction unit; and a traffic volume measured by the traffic volume prediction unit. Traffic ventilation force calculation means for calculating the traffic ventilation force acting on the air pressure measurement means for measuring the air pressure of both tunnels of the tunnel, based on the air pressure measured by the air pressure measurement means, the tunnel at regular intervals, A two-head pressure difference calculating means for calculating a pressure difference between both wells, a traffic ventilation power calculated by the traffic ventilation power calculating means,
And calculating the natural ventilation force in the tunnel based on the two-head pressure difference calculated by the two-head pressure difference calculating means, and determining the operation direction of the ventilator so that the natural ventilation force is used as a tailwind. Ventilation direction determination means, Ventilation direction switch determination means for determining the timing of switching the operation direction of the ventilator based on respective measured values by the pollution concentration meter and anemometer, Determination by the ventilation direction switch determination means And a ventilator control means for controlling the number of operating the ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means at the set switching timing. And tunnel ventilation control device. 10. A plurality of ventilators installed in the tunnel are operated on the basis of respective measured values by a pollution concentration meter and an anemometer installed in the tunnel to determine a pollution concentration in the tunnel. In the tunnel ventilation control device to be controlled, a traffic volume measuring means for measuring traffic volume and vehicle speed for each going up and down passing through the tunnel, and a constant period based on the traffic volume and the vehicle speed measured by the traffic volume measuring device. A traffic volume prediction means for calculating a predicted value of a future traffic volume and a vehicle speed for each, and a traffic ventilation force acting on the tunnel based on the traffic volume predicted value and the vehicle speed predicted value calculated by the traffic volume predicted means. Traffic ventilating force calculating means, pressure measuring means for measuring the pressure of both tunnels of the tunnel, respectively, based on the pressure measured by the pressure measuring means And both wellhead pressure difference calculating means for calculating a pressure difference between both the wellhead of the tunnel at fixed intervals, transportation ventilation force calculated by said traffic ventilating force calculating means,
And calculating the natural ventilation force in the tunnel based on the two-head pressure difference calculated by the two-head pressure difference calculating means, and determining the operation direction of the ventilator so that the natural ventilation force is used as a tailwind. Ventilation direction determination means, Ventilation direction switch determination means for determining the timing of switching the operation direction of the ventilator based on respective measured values by the pollution concentration meter and anemometer, Determination by the ventilation direction switch determination means And a ventilator control means for controlling the number of operating the ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means at the set switching timing. And tunnel ventilation control device. 11. A plurality of ventilators installed in the tunnel based on respective values measured by a pollution concentration meter and an anemometer installed in a tunnel having an evacuation pit adjacent to the main tunnel. In the tunnel ventilation control device that controls the pollution concentration in the tunnel by operating, the traffic volume measuring unit that measures the traffic volume and the vehicle speed of the up and down passing through the tunnel, and the traffic volume measuring unit measures the traffic volume. A traffic ventilation force calculating means for calculating a traffic ventilation force acting on the tunnel based on a traffic volume and a vehicle speed; a wind speed measuring device installed in the evacuation pit and measuring a wind direction and wind speed in the evacuation pit; A two-head pressure difference calculating means for calculating a pressure difference between the two wells of the tunnel at regular intervals based on the wind speed measured by Transportation ventilation force, which is calculated by,
And calculating the natural ventilation force in the tunnel based on the two-head pressure difference calculated by the two-head pressure difference calculating means, and determining the operation direction of the ventilator so that the natural ventilation force is used as a tailwind. Ventilation direction determination means, Ventilation direction switch determination means for determining the timing of switching the operation direction of the ventilator based on respective measured values by the pollution concentration meter and anemometer, Determination by the ventilation direction switch determination means And a ventilator control means for controlling the number of operating the ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means at the set switching timing. And tunnel ventilation control device. 12. A plurality of ventilators installed in the tunnel based on respective values measured by a pollution concentration meter and an anemometer installed in a tunnel having an evacuation mine adjacent to the main tunnel of the tunnel. In the tunnel ventilation control device that controls the pollution concentration in the tunnel by operating, the traffic volume measuring unit that measures the traffic volume and the vehicle speed of the up and down passing through the tunnel, and the traffic volume measuring unit measures the traffic volume. A traffic volume prediction unit that calculates a predicted value of a future traffic volume at regular intervals based on the traffic volume; a traffic volume predicted value calculated by the traffic volume prediction unit; and a traffic volume measured by the traffic volume measurement unit. A traffic ventilation force calculating means for calculating a traffic ventilation force acting on the tunnel based on a vehicle speed; and a wind speed installed in the evacuation pit and measuring a wind direction and wind speed in the evacuation pit. Measuring means, based on the wind speed measured by the wind speed measuring means, a double-head pressure difference calculating means for calculating a pressure difference between the two wells of the tunnel at regular intervals, and calculated by the traffic ventilation power calculating means. Traffic ventilation,
And calculating the natural ventilation force in the tunnel based on the two-head pressure difference calculated by the two-head pressure difference calculating means, and determining the operation direction of the ventilator so that the natural ventilation force is used as a tailwind. Ventilation direction determination means, Ventilation direction switch determination means for determining the timing of switching the operation direction of the ventilator based on respective measured values by the pollution concentration meter and anemometer, Determination by the ventilation direction switch determination means And a ventilator control means for controlling the number of operating the ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means at the set switching timing. And tunnel ventilation control device. 13. A plurality of ventilators installed in the tunnel based on respective values measured by a pollution concentration meter and an anemometer installed in a tunnel having an evacuation mine adjacent to the main tunnel of the tunnel. In the tunnel ventilation control device that controls the pollution concentration in the tunnel by operating, the traffic volume measuring unit that measures the traffic volume and the vehicle speed of the up and down passing through the tunnel, and the traffic volume measuring unit measures the traffic volume. Based on vehicle speed,
A traffic volume prediction unit that calculates a predicted value of a future vehicle speed at regular intervals; a vehicle speed prediction value calculated by the traffic volume prediction unit; and a traffic volume measured by the traffic volume measurement unit. A traffic ventilation force calculating means for calculating a traffic ventilation force acting on the evacuation pit, a wind speed measuring means installed in the evacuation pit to measure the wind direction and wind speed in the evacuation pit, and a constant value based on the wind speed measured by the wind speed measurement means. A double tunnel pressure difference calculating means for calculating a pressure difference between both tunnels of the tunnel for each cycle, a traffic ventilation power calculated by the traffic ventilation power calculating means,
And calculating the natural ventilation force in the tunnel based on the two-head pressure difference calculated by the two-head pressure difference calculating means, and determining the operation direction of the ventilator so that the natural ventilation force is used as a tailwind. Ventilation direction determination means, Ventilation direction switch determination means for determining the timing of switching the operation direction of the ventilator based on respective measured values by the pollution concentration meter and anemometer, Determination by the ventilation direction switch determination means And a ventilator control means for controlling the number of operating the ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means at the set switching timing. And tunnel ventilation control device. 14. A plurality of ventilators installed in the tunnel based on respective values measured by a pollution concentration meter and an anemometer installed in a tunnel having an evacuation pit adjacent to the main tunnel of the tunnel. In the tunnel ventilation control device that controls the pollution concentration in the tunnel by operating, the traffic volume measuring unit that measures the traffic volume and the vehicle speed of the up and down passing through the tunnel, and the traffic volume measuring unit measures the traffic volume. Based on the traffic volume and the vehicle speed, a traffic volume prediction unit that calculates a predicted value of the future traffic volume and the vehicle speed at regular intervals, and based on the traffic volume predicted value and the vehicle speed predicted value calculated by the traffic volume prediction unit. A traffic ventilation force calculating means for calculating a traffic ventilation force acting on the tunnel; and a wind speed measuring means installed in the evacuation pit and measuring a wind direction and wind speed in the evacuation pit. The wind measured based on the wind speed measured by means of a double wellhead pressure difference calculating means for calculating a pressure difference between both the wellhead of the tunnel at fixed intervals, transportation ventilation force calculated by said traffic ventilating force calculating means,
And calculating the natural ventilation force in the tunnel based on the two-head pressure difference calculated by the two-head pressure difference calculating means, and determining the operation direction of the ventilator so that the natural ventilation force is used as a tailwind. Ventilation direction determination means, Ventilation direction switch determination means for determining the timing of switching the operation direction of the ventilator based on respective measured values by the pollution concentration meter and anemometer, Determination by the ventilation direction switch determination means And a ventilator control means for controlling the number of operating the ventilators so as to ventilate with a predetermined ventilation force in the ventilation direction determined by the ventilation direction determination means at the set switching timing. And tunnel ventilation control device.