JPH06280467A - Tunnel cutting face information administration device - Google Patents

Abstract

PURPOSE:To make it possible to grasp a working situation in a plurality of construction sites in a working face in real time mode by inputting signals transmitted from various sensors installed to each construction equipment into an arithmetic operation processing part and analyzing the operation mode of each construction equipment. CONSTITUTION:A plurality of sensors, such as a boom pressure detection sensor 5, a boom angle detection sensor 6, forward and backward movement detection sensors 8, are installed to each construction equipment, such as a wheel loader in a plurality of working faces in a tunnel. Signals transmitted from each sensor are entered into an arithmetic processing part by way of a signal receiving and sending system. The operation mode of each construction equipment is analyzed in the arithmetic operation processing part and the data is analytically processed, thereby grasping the working situation in a plurality of construction sites in the tunnel in real time mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for surely grasping the operating condition of a machine at a face when a tunnel is propelled.

[0002]

2. Description of the Related Art In the construction of mountain tunnels, a piercing process is first performed and then a blasting process is performed. Spraying work, supporting work and lock bolt work are sequentially performed on the wall surface by a spraying robot.

In recent years, in this type of mountain tunnel, there is a demand for an ultra-large section of the tunnel diameter and rapid construction, and it is necessary to perform simultaneous work from a plurality of facets in the tunnel. At this time, in each of the above-mentioned work steps, for example, the state of the construction machine such as the wheel loader and the work content must be surely grasped.

With respect to this point, in the prior art, each worker visually observed the state of the face at each face portion and recorded the identification of the work content and the work time.
Then, this information was provided to the management office through wireless communication such as a transceiver or wired communication, and the situation of the entire face was grasped.

[0005]

In the above-mentioned prior art, the following problems have been encountered because the information collection from each face depends on the manual labor of each worker. (1). Since the quality of the information from each face was not constant because of manual labor, the work content of each machine (wheel loader etc.) could not be specified with certainty. (2). Since the communication of information from each face is not constant, the working time at each face cannot be grasped with certainty. For this reason, the work progress status as a whole could not be made constant. (3). It was difficult to grasp this information in real time because the operating time of each machine was collected and accumulated after one cycle or one day of work was completed at the office.

[0006]

SUMMARY OF THE INVENTION The present invention is a tunnel face information management device for integrally managing the operating conditions of each work machine at a plurality of face sections in a tunnel, the work machine having a plurality of sensors, A signal from this sensor is sent to an arithmetic processing unit through a transmission / reception system, and the arithmetic processing unit analyzes the operation mode of the work machine and outputs the analysis result.

[0007]

According to the present invention, the working conditions at a plurality of face portions in a tunnel can be grasped in real time, and a malfunction of a working machine or the like can be found at an early stage. Moreover, since the information can be integrated, the progress of the entire work in the tunnel can be accurately grasped.

[0008]

1 to 3 show an embodiment of the present invention. FIG. 1 shows a first forward traveling → sliding stacking mode of the wheel loader 1 which is the working machine of this embodiment, and FIG. 2 shows a first backward traveling →
FIG. 3 shows the second forward movement mode, and FIG.

In the wheel loader 1 of this embodiment, as shown in FIG. 4, a bucket 4 is attached to the tip of a swingable boom 3 extending from one front end of a vehicle body 2. The boom 3 is provided with a boom pressure detection sensor 5 for detecting the hydraulic pressure applied to the base of the boom 3 and a boom angle detection sensor 6 for detecting the angle of the boom 3.

Further, of the wheels 7 at the bottom of the vehicle body 2, the drive wheel is provided with a forward / backward movement detection sensor 8 for detecting the rotational state thereof. The work mode of the wheel loader 1 is analyzed based on the information from the sensors of these three systems.

FIG. 5 shows the entire system of this embodiment. In the figure, a transmission device 10 is provided in a wheel loader 1 that moves in a tunnel, and a reception device 11 is also provided in a position in the backward direction of the wheel loader 1 in the tunnel. Information is transmitted by wire 12 between the receiving device 11 and the center 13, and the center 13 is provided with a data measurement system 14 and a data management system 15 which are computer systems.

That is, in the center 13, the data measurement system 14 collects information from each sensor, and the data management system 15 accumulates and analyzes the information. Next, the processing of analyzing the operation mode of the wheel loader 1 in the center 13 will be described.

First, when the engine of the wheel loader 1 is started and the wheel loader 1 starts to move forward, the forward / backward movement detection sensor 8 detects the forward movement of the wheel loader 1. At this time, as shown in FIG. 1, the boom pressure detection sensor 5
When the boom pressure is maintained at a predetermined pressure P _TH or less by the signal from, and the boom angle is less than the predetermined angle θ _TH by the signal from the boom angle detection sensor 6,
The center 13 determines that the wheel loader 1 is in the “first forward drive mode” state. This first forward mode is a state in which the wheel loader 1 is moving forward toward the face.

Here, the predetermined pressure P _TH is, for example, 50 Kgf /
cm ² is set to, the bucket 4 is initially set to be this place a pressure below e.g. 40 Kgf / cm ² in an empty state.

The predetermined angle θ _TH is set to, for example, 0 °, that is, a completely horizontal state. Next, the boom pressure changes over a predetermined value P _TH within a certain time (for example, several seconds to several tens of seconds) (for example, 40 to 210 Kgf / cm ² ), and the boom angle changes over a certain value within this time. Then, when the drive system repeats the normal rotation or the reverse rotation, the center 13 determines that the wheel loader 1 is in a state of "sliding" on the face.

[0016] Next, as shown in FIG. 2, to maintain the boom pressure constant state (e.g. 105Kgf / cm ²⁾ at a predetermined value or more P _TH, and the boom angle is kept constant state, and the drive system When in the reverse rotation state, the center 13 is in a state where the wheel loader 1 is moving backward (“first reverse driving mode”).
It is determined that In this first reverse drive mode, the wheel loader 1 is retracted from the cutting face by accommodating the soil of the cutting face in the bucket 4.

Next, the boom pressure changes above a predetermined value P _TH (for example, 105 to 160 Kgf / cm ² ), the boom angle changes above a predetermined angle (θ _TH ) and the drive system is in the normal rotation state. Sometimes it is determined that the "second forward mode" is set.
The second forward mode is a state in which the transport vehicle 16 such as a dump truck is approaching.

Next, as shown in FIG. 3, when the boom pressure is changed (for example, 160 to 40 Kgf / cm ² ), the boom angle is changed, and the drive system is in the normal rotation state, the "discharging mode for misalignment" It is determined to be. This mode is bucket 4
It is in a state where the earth and sand inside is discharged to the transport vehicle 16 such as a dump truck.

Finally, the boom pressure is kept constant below a predetermined value (P _TH ) (for example, 40 Kgf / cm ² ), the boom angle is changed below a predetermined angle (θ _TH ) and the drive system is in the reverse rotation state. When it is, it is determined to be the “second reverse mode”. This mode is a preparatory stage for entering the work of the next cycle for the face. Further, when the drive engine of the wheel loader 1 is stopped in this mode, it means the end of the work for one day.

In the above-described one-cycle processing, the boom pressure from the boom pressure detection sensor 5 is used to load the bucket 4 between the "second forward mode" and the "discharging stacking discharge mode". Measure the amount of sediment that is stored, that is, the amount treated in the cycle. As a result, the center 13 can recognize the processing amount of the cutting face in the cycle, and by accumulating the processing amount, it is possible to calculate the misalignment work amount of the entire cutting face.

[0021]

According to the present invention, the working status at a plurality of facets in a tunnel can be grasped in real time, and a malfunction of a working machine or the like can be found at an early stage. Moreover, since the information can be integrated, the progress of the entire work in the tunnel can be accurately grasped.

[Brief description of drawings]

FIG. 1 is a diagram showing a work mode of a wheel loader which is an embodiment of the present invention.

FIG. 2 is a diagram showing a work mode of a wheel loader which is an embodiment of the present invention.

FIG. 3 is a diagram showing a work mode of a wheel loader which is an embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of a wheel loader that is an embodiment.

FIG. 5 is a block diagram showing the overall system configuration of the embodiment.

[Explanation of symbols]

 1 ... Wheel loader 2 ... Car body 3 ... Boom 4 ... Bucket 5 ... Boom pressure detection sensor 6 ... Boom angle detection sensor 7 ... Wheel 8 ... Forward / backward movement detection sensor 10 ... Transmitter 11 ... Receiver 12 ··· Wired 13 · · Center 14 · · Data measurement system 15 · · Data management system 16 · · Transport vehicle

Claims (4)

[Claims] 1. A tunnel face information management device for integrally managing the operating status of each work machine at a plurality of face sections in a tunnel, the plurality of sensors provided on the work machine, and signals from the sensors. And a transmission / reception system for transmitting, an arithmetic processing unit that analyzes the operation mode of the work machine by a signal from the sensor obtained through the transmission / reception system, and statistically processes this data, and an output that outputs an analysis result by the arithmetic processing unit Face information management device for tunnels consisting of systems. (1) The work machine is a wheel loader having a drive system capable of moving forward and backward in the tunnel, and having a bucket movable up and down by a boom at one end in the forward or reverse direction of the work machine, (2) The sensors include at least a forward / backward movement detection sensor that detects the forward / reverse rotation state of the drive system, a boom angle detection sensor that detects the vertical position of the boom, and a hydraulic pressure or strain applied to the boom for the load applied to the bucket. (3) The arithmetic processing unit uses the signal obtained through each of the sensors to perform a first forward movement of the wheel loader → sliding stack → first reverse movement → second 2. The face information management device for a tunnel according to claim 1, wherein which of the operation modes of the forward movement of the vehicle, the discharge of the piled product, and the second backward movement is analyzed. 3. The arithmetic processing unit sets each of the operation modes in the wheel loader under the following conditions, namely, (1) first forward movement mode: the boom pressure is kept constant below a predetermined value, and the boom angle is When a constant state is maintained below a predetermined angle and the drive system is in the normal rotation state, (2) Sliding stacking mode: boom pressure changes within a certain time, boom angle changes above a certain angle, and drive is performed. When the system is in the forward or reverse rotation state, (3) the first reverse drive mode: the boom pressure is maintained at a constant value or higher, and the boom angle is maintained at a constant value.
When the drive system is in the reverse rotation state, (4) Second forward mode: when the boom pressure is equal to or higher than a predetermined value, the boom angle is changed to a certain angle or more, and the drive system is in the normal rotation state, 5) Sliding product discharge mode: When the boom pressure changes within a certain time, the boom angle changes above a certain angle, and the drive system is in the forward or reverse rotation state, (6) Second reverse mode: boom 2. The tunnel according to claim 1, wherein when the pressure is below a predetermined value, a constant state is maintained, the boom angle is below a predetermined angle, the drive system is in a reverse rotation state, and Face information management device. 4. The work machine is a wheel loader having a drive system capable of moving forward and backward in the tunnel, and having a bucket that can be moved up and down by a boom at one end in the forward or reverse direction, and the sensor is The face information of the tunnel according to claim 1, further comprising: a boom pressure detection sensor that detects at least a load applied to the bucket by a hydraulic pressure applied to the boom, and the shear product weight is measured through the boom pressure detection sensor. Management device.