JP3135207B2 - Construction management system for tunnel machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction management system for a tunnel excavator, and in particular, collects and analyzes construction data such as machine data, ground data, or boring data obtained during excavation work in real time. The present invention relates to a construction management system for a tunnel excavator that performs construction while being reflected in work.

[0002]

2. Description of the Related Art Tunnel boring machines (hereinafter "T")
BM ". ) Is a machine that excavates while cutting or crushing the entire cross section of the tunnel with a rotary cutter without using explosives, unlike the conventional excavation method. It is an effective tunnel excavation machine for stable ground where the face to hard rock is independent. In addition, the excavation method using this tunnel excavator is more widely used in Japan than in other countries because of its ability to cope with complicated geological conditions unique to Japan, including strata with poor independence such as crush zones and soft layers. However, due to improvements in the application of the shield mechanism, etc., geological compatibility has been achieved and it has become possible to appeal its high-speed construction, and advanced pilots for headrace tunnels and large section road tunnels Many construction records have been left for construction machines such as tunnels.

As shown in FIGS. 2 (a) and 2 (b), this tunnel machine has a cutter head 50 at its tip and a protruding / retracting outer peripheral portion toward the ground. A front body 52 having a possible front gripper 51; and a main gripper 54 which is slidably connected to the front body 52 by a thrust jack 53 and which can protrude and retreat toward the ground at an outer peripheral portion thereof. In the stable ground, the main gripper 54 is protruded and pressed against the ground on the outer periphery to obtain a digging reaction force, and the front gripper 51 is retracted to rotate the cutter head 50. A process of extending the thrust jack 53 while excavating for one stroke, and after completing the excavating operation for one stroke, The main gripper 54 is retracted while the main gripper 54 is retracted, the thrust jack 53 is contracted and the rear trunk 55 is drawn toward the front trunk 52, and then the main gripper 54 is again projected and retracted. While repeating the process of fixing the trunk 55,
The tunnel excavation work is performed using the so-called scale insect method.

The tunnel excavator is capable of excavating a direction control jack 56 for controlling the direction of excavation and an unstable ground such as a crush zone or a soft layer. In some cases, a shield mechanism such as a shield jack 57 is provided.

[0005]

Then, such a TBM is used.
According to the tunnel excavator, the excavation work of the tunnel face is performed by, for example, pressing the roller cutter mounted on the rotating cutter head 50 against the ground and crushing it. Since the state of the surface cannot be directly observed, the conventional ground evaluation method cannot be directly applied.

Further, a quantitative evaluation of a rational construction method for excavating and supporting a face face in accordance with the properties of the ground that changes with the progress of the excavation work has been established. It is not at present.

That is, for example, even if an evaluation of a rational construction method according to the properties of various geological grounds has been established, the evaluation of the properties of the excavated ground at a point as close to the face as possible is not possible. If not done immediately, the response to changes in the conditions of the ground will be delayed, and an accurate construction method will not be selected.

[0008] On the other hand, even if the properties of the excavated ground are evaluated immediately at a point as close as possible to the face, a quantitative evaluation of a rational construction method according to the properties of the ground must be established. For example, the operation of the tunnel excavator depends on the operator's discretion, and the progress of the work depends on the skill level of the operation by the operator.

In view of the above, the present invention has been made in view of such conventional problems, and the construction data obtained during the excavation work is quickly collected and analyzed to accurately grasp the properties of the ground near the face. The purpose of the present invention is to provide a construction management system for a tunnel excavator capable of easily and stably performing efficient excavation work by immediately adopting a construction method suitable for the properties of the ground. It is assumed that.

[0010]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and its gist is to provide mechanical data, ground data, boring data, and the like obtained during excavation work by a tunnel excavator. Data collection means for collecting the construction data of the above, a ground evaluation means for performing a calculation based on the data collected by the data collection means, and evaluating the properties of the ground from the calculation result, By selecting a combination of operations of the excavating mechanism consisting of various jacks and grippers according to the properties of the evaluated ground, the tunnel can be controlled in terms of cutter torque, thrust thrust, thrust extension speed, cutter rotation speed, excavation direction, etc. drilling Do that from the selecting means controls the operation of the excavator
An operation and construction management system for an engine, comprising:
The construction data collected by the means includes the main gripper
The process of extending and pressing the
The present invention relates to a construction management system for a tunnel excavator, characterized by including test data obtained by the above. The main gripper is
Excavation work for each stroke to secure excavation reaction force
Before the start of the project
To repeat the attaching process, the main gripper at this time
If the load and stroke of the
The equivalent of the load-displacement curve in the load test was obtained.
And the main gripper
Investigate the deformation behavior of the ground at each overhanging position
Will be. For this reason, the main gripper, for example,
Hydraulic control circuit with proportional solenoid valve, 1 / 100mm accuracy
Laser stroke meter, etc.
Is preferred.

Here, the data collection means is, for example,
Measuring devices, sensors, scanners, etc. that are attached to various machines and devices that constitute the tunnel excavator and detect these displacements and applied loads, etc. A programmable logic controller (hereinafter referred to as “PL
C ". ) And transmission means such as optical fiber cables, and a computer provided in the management room. Various construction data is transmitted to this computer in real time and collected, and the collected data is collected as necessary. It is output and accumulated.

The collected machine data may include a net excavation time, a thrust thrust, a cutter torque, a net cutter rotation speed, a net excavation speed, a cutting depth, and the like.
Ground data includes the independence of the pit wall, simple elastic wave velocity,
SH (Schmidt hammer) rebound value, RQD, number of cracks, ground evaluation score, RMR, and the like can be given. Further, the boring data includes a drilling speed, a number of hits, a feed force, a rotation speed, a torque, and the like.

On the other hand, the ground evaluation means comprises, for example, a computer provided in the control room, and performs necessary calculations quickly according to a predetermined program based on various construction data collected by the data collection means. Along with the data accumulated in advance, at other construction sites, or obtained with the progress of excavation work at the site, the data indicating the correlation between the properties of the ground and the calculation results, This is to evaluate the properties of the ground during excavation work.

Further, the selection means also comprises, for example, a computer provided in the control room, and analyzes results of excavation data collected at other sites in the past, information obtained through hearing from a skilled operator, or information on the site. From the results of the analysis of the excavation data obtained sequentially as the excavation work progressed at the site, the characteristics of various grounds and the regularity of the optimal driving operation for the grounds of each characteristic were found, and this was determined in advance. The properties of the ground evaluated by the ground evaluation means are compared with the stored data, and the optimum combination of operations of the excavating mechanism composed of various jacks, grippers, and the like or the amounts of these operations are calculated. Is to select.

[0015]

[0016]

According to another aspect of the present invention, there is provided a construction management system for a tunnel excavator, wherein test data obtained by regarding a process of projecting and pressing a front gripper to the ground side on construction data collected by the data collection means as a loading test. it is characterized in the inclusion of.

In other words, the front gripper is used to secure the supporting reaction force when the rear body is pulled and rearranged after the end of the excavation work for each stroke, so as to secure the support reaction force, and the front excavation inner peripheral surface of the tunnel is used. Therefore, the load test is performed by utilizing the expansion time of the main gripper during the changing operation. Therefore, similarly to the main gripper, it is preferable that a hydraulic control circuit with an electromagnetic proportional valve, a laser stroke meter with 1/100 mm accuracy, or the like be mounted on the front gripper as the detection means.

Further, according to another aspect of the present invention, there is provided a construction management system for a tunnel machine, wherein test data obtained by a loading test device provided separately from the main gripper and the front gripper is added to the construction data collected by the data collection means. it is characterized in the inclusion of.

That is, for example, if a dedicated load test device is provided separately from the main gripper and the front gripper on the outer peripheral portion of the tunnel excavator, the periphery of the tunnel excavator can be removed without using the main gripper or the front gripper. It is possible to easily obtain accurate load test data on the ground.

According to the construction management system for a tunnel excavator of the present invention, construction data near a face obtained during excavation work by the tunnel excavator is collected in real time by the data collection means, and the collected data is collected. Is evaluated in real time by the ground evaluation means to evaluate the properties of the ground, and in accordance with the evaluated properties of the ground, excavation work is performed by selecting the optimal combination of operations of the excavation mechanism in real time by the selection means. Go on. In other words, while collecting and analyzing the construction data obtained during the excavation work and accurately grasping the properties of the ground close to the face, the construction method suitable for such properties of the ground is immediately adopted, and such construction data is It is possible to perform efficient and stable excavation work while reflecting on the excavation work.

Also, if test data obtained by regarding the process of pressing the main gripper against the ground side as a loading test is collected and analyzed as construction data, it has practicality and reliability suitable for evaluating the properties of the ground. If continuous data can be obtained economically and stably, and if the test data obtained by considering the process of pressing the front gripper against the ground side as a loading test is collected and analyzed as construction data,
Practical and reliable continuous data suitable for evaluating the properties of the ground can be easily obtained from a position closer to the face. It should be noted that test data obtained by these loading tests can be obtained as more accurate test data using a dedicated loading test device without using a main gripper or a front gripper.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention, ie, embodiments, will be described below in detail with reference to the accompanying drawings. However, the present invention is not limited to such embodiments. FIG. 1 is a conceptual diagram showing an overall configuration of a construction management system for a tunnel machine according to an embodiment of the present invention. That is, the construction management system of this embodiment is, for example, a tunnel machine for excavating and forming an advanced shaft of a large section road tunnel having an excavation cross section of about 80 m ² and having a diameter of about 3.5 m. When the excavation work is performed using a full shield type TBM, the construction management system of the present invention is employed.

Then, according to this embodiment, the TBM is:
Like the conventional TBM, the main body 10 has a front body 1 having a cutter head 11 and a front gripper 12.
3. Rear trunk 15 with main gripper 14, Front trunk 1
Thrust jack 16, directional control jack 17, shield jack 18 slidably connecting the rear body 3 and the rear body 15.
And a gyrocompass 19 for detecting the azimuth and a level meter 2 for detecting a relative level with respect to the reference point.
0 and so on.

The TBM is provided with an advanced boring machine 21 for exploring the ground in front of the face, and a belt conveyor 2 for discharging excavated earth and sand.
2 and shuttle train 29, and this TBM
A laser 23, a CCD camera 24, an image processing device 25 for monitoring earth and sand conveyed from the belt conveyor 22, and a first personal computer 2 for operating and managing them.
6, a javel control box 27 for controlling the gyrocompass 19 and the level meter 20, a javel display 28, a sensor 46 for confirming a stop position of the shuttle train 23, and the like.

Furthermore, the advanced boring machine 2 is installed in the main body 10 of the TBM and in the tunnel mine subsequent thereto.
1st PLC which performs operation control of 1 and collects drilling data
30, process management of each device (for example, performing a series of operation control such as determination of start condition and start command of each device, determination of start and end of excavation and stop command, data communication, control signal communication, etc.) and A second PLC 31 that performs automatic operation control (for example, controls various jacks so that the excavation pattern and operation amount are instructed by the management room 40 and automatically performs preparation, excavation, and refilling processes), in the pit An operation panel 32 and the like are provided, and construction data such as mechanical data and boring data collected via the first PLC 30 and the second PLC 31 are provided as relay stations every 1000 m through an optical fiber cable 33 as a transmission means. Relay PL
The data is transmitted to various computers in the control room 40 provided on the ground via C34, and is stored and recorded.

On the other hand, in the control room 40 provided on the ground,
A first FA computer 35 for collecting and managing various data and a plotter 36 and a printer 3 attached thereto
7. Second FA connected to first FA computer 35
Computer 38 and attached printer 3
9, computers such as a second personal computer 41 and a printer 42 attached thereto, an underground operation panel 43 for operating and controlling these, or a third PLC 44 as a data transmission device and a keyboard 45 attached thereto. Have.

Then, the first FA computer 35
Collection and analysis of construction data sent from the mine through the optical fiber cable 33, linear management, excavation management,
Perform statistical analysis. That is, in order to collect and analyze construction data, the first FA computer 35 collects and calculates various data in real time, and records excavation information for each unit excavation length. Also, based on the excavation information for each unit excavation length, a representative value for each one-stroke TBM excavation operation from the re-arrangement operation to the next re-arrangement operation is stored and output as a stroke report or a visual report. In addition to having an alarm monitoring function for each collected data, it also performs recording of various data by advanced boring, recording of MG loading test results described later, calculation of deformation coefficient, and the like. As the linear management, for example, the coordinates of the tip of the machine are obtained from the arithmetic processing result of the signal from the shovel and the excavation distance, and the position coordinates are corrected by inputting the artificial survey data. As excavation management,
For example, the target direction and level of the next stroke are calculated and displayed from the planned alignment and meandering amount for each stroke. Furthermore, as a statistical analysis, for example, a target variable is selected from a data file in units of strokes, a multiple regression analysis,
Analyze excavation data by multi-formal analysis, logarithmic scatter plot, etc.

On the other hand, the second FA computer 38 performs automatic direction control, status display of process equipment, and the like. As the automatic direction control, for example, in this embodiment, past excavation data is learned by a neural network, and the most appropriate jack pattern for excavating in the target direction is selected at each excavation. Further, the control amount of the stroke is determined by fuzzy logic. As the status display of the process equipment, for example, a schematic diagram of the TBM and the peripheral equipment is displayed on a screen to indicate the activation state of each equipment and each machine data is displayed.

Then, the second personal computer 4
1 performs walking management, collection of ground observation data, correlation analysis, analysis of excavation data, and the like. Here, as step management,
For example, TBM work cycle, main shaft widening work cycle,
Input and storage of data such as cutter exchange, output of a book table, and the like are performed, and as the collection of ground observation data, for example, data on various ground surveys (geological classification, rock classification, SH, etc.) is collected. In addition, as a correlation analysis, for example, a correlation analysis of a geological survey result, a mechanical characteristic, a support type, etc. is performed.
As the analysis of the excavation data, for example, the data is retrieved from the first FA computer 35 and analyzed using general-purpose software.

That is, according to this embodiment, the first PLC, the second PLC 31, and the optical fiber cable 3 provided in the main body 10 of the TBM and the tunnel pit subsequent thereto.
3. The second personal computer 41 and the first FA computer 35 for collecting the ground observation data constitute data collection means for collecting construction data, and the first FA computer 35 for performing various calculations is the ground evaluation means. And a second FA computer 38 for determining a jack pattern selection and stroke control amount.
Constitute the selection means.

Further, according to this embodiment, the collected construction data includes MG loading test data obtained by regarding the process of extending and pressing the main gripper toward the ground side as a loading test, that is, the following method. M obtained
G coefficient is included.

That is, usually, the main gripper is expanded before the excavation to take a reaction force from the ground, and when the excavation is completed, the work of pulling back the main gripper is repeated to change the arrangement. The loading test is performed using the expansion time before the excavation. Specifically, for example, a hydraulic control circuit with an electromagnetic proportional valve, a laser stroke meter with 1/100 mm accuracy, and the like are mounted on each main gripper 14, and first, a lower limit ground pressure (surface pressure of 8.6).
kg / cm ² ), and thereafter, the pressure is increased by 3.4 kg / cm ² every 5 seconds, and the upper limit contact pressure (contact pressure 4
8 kg / cm ² ). The measurement data at this time is transmitted to the first FA computer 35, asymptote lines are respectively obtained from the calculated stress-displacement graphs, and the slope multiplied by the tunnel radius is used as the MG coefficient.

Further, according to this embodiment, the collected construction data includes test data of an FG penetration test obtained by regarding the process of extending and pressing the front gripper toward the ground side as a loading test, that is, the following method. The obtained FG bite amount is included.

That is, the front gripper 12 is mainly used for expanding after excavation to take a reaction force on the ground and performing a refilling operation. A biting test will be performed as one of the tests. Specifically, for example, first, a measurement start pressure (lower limit contact pressure) and a measurement end pressure (upper limit contact pressure) are set as test conditions, and when the gripper “push” operation is performed, the gripper hits the ground. Until it hits the ground and the pressure rises. When the pressure by the front gripper 12 reaches the lower limit ground pressure (the set value is 70 kg / cm ^{2 in} hydraulic pressure), the pressurization is temporarily stopped, and the stroke value of each front gripper 12 is measured. After a few seconds, the pressure is automatically increased again. When the pressure reaches the upper limit contact pressure (the set value is 200 kg / cm ^{2 in} hydraulic pressure), the pressure is stopped again, and each stroke value is measured. This stroke difference is recorded as the FG bite amount of the front gripper 12. After a few more seconds, pressurization is resumed, pressurized to the maximum pressure and stopped.

The stroke is measured using an ordinary stroke meter, and the pressure of the gripper can be measured as a single point measurement instead of individually. In addition, this biting test is performed after the excavation work of one stroke by the TBM is completed and before the work is changed. Further, the measurement data is sent to the first FA computer 35 outside the mine through the optical fiber cable 33 laid in the mine, where the calculation and recording of the bite amount value are performed.

The test data such as various coefficients obtained by the load test and the amount of digging into the ground are provided separately from the main gripper 14 and the front gripper 12 by a dedicated load test device provided on the outer peripheral portion of the tunnel machine. 58 can be protruded and retracted toward the surrounding ground to obtain a more accurate value.

Further, according to this embodiment, the advanced boring machine 21 for exploring the ground in front of the face face.
Can also collect and analyze construction data. That is, according to the advanced boring machine 21, for example, using various sensors mounted on a rotary percussion machine, drilling, drilling depth, speed, hitting energy, hitting number, hitting force, torque, rotation speed, feed Water pressure,
Measure 10 types of data of water supply and drainage. Such data is scanned every second similarly to the mechanical data of the TBM 10, and the instantaneous value is 100 cm for every 50 mm of the drilled hole.
A tally value is calculated and recorded every time.

The MG loading test using the main gripper 14 and the loading test using the front gripper 12
This is performed for each stroke of the TBM that moves forward while performing the changing work. Other machine data is scanned every second, transmitted to the operation panel on the ground, and drawn on the monitor. Then, an instantaneous value is recorded for each excavation stroke of 50 mm, and furthermore, one TBM for each refilling operation is performed.
After the excavation work for the stroke is completed, a total value such as an average is calculated. On the other hand, underground observation surveys for obtaining ground data are conducted every 5 m.

Since the ground data and the machine data (TBM data, advanced boring data) have their own intervals, when comparing the ground data and the machine data, ±± of the underground observation measurement position is used. For data within 2.5 m, the load average value at the measurement interval was adopted. Statistical analysis functions include simple regression, box plot, frequency chart,
It has a change diagram and the like, and has a function of outputting text as needed.

According to this embodiment, the first as the ground evaluation means based on the collected construction data described above.
Properties of the ground evaluated by FA computer 35,
In consideration of the meandering amount of the machine and the excavation information one stroke before, etc., the second FA computer 38 as a selecting means selects an optimal combination of operations of the excavating mechanism including various jacks and grippers or the amount of these operations. Will do. That is, the cutter head 11, the front gripper 12, the main gripper 14, the thrust jack 16, the direction control jack 1 constituting the excavation mechanism
7. By selecting the combination of the use of the shield jack 18 and the operation amount, the control of the direction of the TBM, the control of the cutter torque, and the control of the thrust thrust, the thrust extension speed, the cutter rotation speed, and the like are performed.

In this embodiment, the analysis results of the excavation data collected in the past at other sites, the information obtained through interviews with skilled operators, or the information obtained sequentially as the excavation work progresses at the site. From the analysis results of the excavation data obtained, etc., we found the regularity of the properties of various grounds and the optimal driving operation for the grounds of each property, and used an AI method called neural network and fuzzy theory, Automation by the same driving operation is realized. That is, during preparation of the excavation work for each stroke, the selection of the optimum combination of operating ends according to the excavation situation is determined by a neural network, and the necessary stroke amount of the front gripper and the direction control jack during excavation is calculated. Is performed by fuzzy inference.

That is, a neural network is an arithmetic circuit that models the functions of a neural circuit and a nerve cell of a living body in an engineering manner. The feature of the neural network is that the machine itself is set based on given data. The ability to select the best possible answer under the given conditions. That is, this ability is suitable for solving problems such as pattern recognition and prediction judgment.

The fuzzy theory is a theory that quantifies a qualitative idea of human beings and an ambiguous idea that is difficult to express numerically. Here, when the machine is operated by a human, it is often based on a fuzzy idea such as "the value to be controlled tends to increase, so the value to be operated slightly increases." In the case of a tunnel machine, for example, the front gripper 11 and the direction control jack 1
7 is used to adjust the direction correction, but since the idea at this time is fuzzy, the fuzzy theory will be applied.

Therefore, if the selection of the excavation mode by the neural network is included in the selection means, the selection means is suitable for solving problems such as pattern recognition and prediction judgment. Can be determined quickly based on the construction data, and if the means for determining the amount of jack operation based on fuzzy theory is included in the selection means, the way of thinking of adjusting the direction correction is fuzzy, The direction of the tunnel machine can be easily corrected.

For example, as jacks used for excavating a TBM, a front gripper 12, a direction control jack 17, a thrust jack 16, a main gripper 14 are provided.
And the type and number of jacks to be used are defined in the excavation mode as shown in Table 1, and a neural network is used to select an optimal mode for excavation work. In addition, the drilling data collected at the past site or the drilling data sequentially obtained with the progress of the drilling work at the site is analyzed as the teacher signal (ideal output with respect to the input signal) of the neural network. Choose and use good ones.

[0047]

[Table 1] Table 1 shows that the excavation mode allows greater control as the absolute value of the mode number increases. The sign indicates the direction of excavation. For example, + indicates a mode in which the bend is to the right and-indicates a mode in which the bend is to the left. Further, the excavation mode of the previous stroke, the previous excavation result, the previous azimuth change amount difference, and the like are input to the neural network, and the fitness of each excavation mode for the current excavation work is output.

Since the excavation ground is different at each site, it is not possible to directly apply the teacher signal obtained from the past excavation result. Therefore, the excavation work is performed while inputting and learning the excavation data from the site and reflecting the data in the excavation work in real time.

On the other hand, the operation amount of the jack selected by the neural network is determined, for example, as follows. That is, as an example, the front gripper 1
4 indicates that the excavation section is straight or a gentle curve section.
This is the operation end that is the center of directional control. No. 2, No.
The gripper No. 3 (see FIG. 2B) can correct the deviation in the horizontal direction by causing a difference in each stroke. 1, No. The gripper No. 4 is mainly used for steadying the front torso (lightly hit the ground). This N
o. 2, No. The calculation of the stroke amount difference of No. 3 is performed by fuzzy logic, and is adjusted as needed during excavation.

The directional control jack 17 is an operating end that becomes the center of directional control when the digging section is a curved section or when the amount of horizontal deviation is large. It is also an important operation end for vertical deviation correction and gradient maintenance. Therefore, the calculation of the stroke difference between the four jacks uses fuzzy logic, and the control in the vertical direction is always adjusted while the control in the horizontal direction is adjusted as needed during excavation only when selected in the mode.

By applying the neural network and the fuzzy theory to the excavation work of the TBM in this manner, the automatic control of the machine utilizing the construction experience becomes possible, and the automatic control of the machine depends on the skill of the operator as in the prior art. Without this, automatic operation with stable and good excavation accuracy and excavation speed can be realized.

According to the construction management system for a tunnel excavator of this embodiment having the above-described configuration, construction data near a face obtained during excavation work by the TBM is collected in real time by the data collection means, and such data is collected. The collected data is analyzed in real time by the ground evaluation means to evaluate the properties of the ground, and according to the evaluated properties of the ground, the optimal combination of operations of the excavation mechanism is selected by the selection means in real time. While doing the excavation work. Therefore, while collecting and analyzing the construction data obtained during the excavation work to accurately grasp the properties of the ground near the face, the construction method suitable for the properties of the ground is immediately adopted, and such construction data is collected. An efficient and stable excavation work can be performed while reflecting on the excavation work.

If the MG coefficient obtained by considering the process of pressing the main gripper 14 against the ground side as a loading test is collected and analyzed as construction data, the practicality and reliability suitable for evaluating the properties of the ground side are obtained. If continuous data can be obtained economically and stably, and the process of pressing the front gripper 12 against the ground side is regarded as a biting test, the amount of FG penetration obtained and analyzed as construction data can be obtained. Practical and reliable continuous data suitable for evaluating the properties can be easily obtained from a position closer to the face.

By clarifying the correlation of various data with rock types and rock class classifications, basic data for establishing a construction management method using TBM mechanical data and the like can be obtained. At the same time, if there is a high correlation between the data and if the data can be stratified by rock classification, those data can be used as an index of excavation management.

Further, the discriminant analysis (discrimination of rock classification, discrimination of defective ground portion, etc.) by multivariate analysis is performed using various data, and the ground evaluation (MG coefficient) of various data is performed. , The evaluation of the ground level by machine data including the FG penetration amount) and the prediction of the ground level ahead (the ground prediction ahead by advanced drilling data) can be confirmed.
As a result, it is possible to perform ground evaluation (understanding rock class classification) and forward ground prediction (understand poor ground causing machine trouble) using highly effective data.

However, since the above indexes require data correction due to differences in rock type, machine diameter, etc., it is necessary to accumulate a number of site data in the future and establish a data correction method. is there.

[0057]

As described above in detail, according to the construction management system for a tunnel excavator of the present invention, the construction data such as machine data, ground data, or boring data obtained during the excavation work by the tunnel excavator is performed. Data collection means for collecting data, a ground evaluation means for performing an operation based on the data collected by the data collection means, and evaluating the properties of the ground from the calculation result; It is a selection means that controls the cutter torque and the direction of excavation by selecting a combination of operations of the excavation mechanism consisting of various jacks and grippers according to the properties of the ground that has been excavated. The obtained construction data is quickly collected and analyzed, and the properties of the ground near the face are accurately grasped, and the construction method suitable for the properties of the ground is immediately determined. And use, can be effective good excavation work Yuku went easily and stably.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an entire configuration of a construction management system for a tunnel excavator according to an embodiment of the present invention.

FIGS. 2A and 2B show a general configuration of a tunnel machine to which the present invention is applied, wherein FIG.
FIG. 3A is a rear view as viewed from AA in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Main body part of TBM (tunnel excavator) 11 Cutter head 12 Front gripper 13 Front trunk part 14 Main gripper 15 Rear trunk part 16 Thrust jack 17 Direction control jack 21 Advanced boring machine 30 1st PLC (data collection means) 31 2nd PLC ( Data collection means) 33 Optical fiber cable (Data collection means) 35 First FA computer (Data collection means, ground evaluation means) 38 Second FA computer (Selection means) 41 Second personal computer (Data collection means) 58 Loading test device

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Keizo Kazama 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office (72) Inventor Yoshinobu Iio 2-chome, Kandaji-cho, Chiyoda-ku, Tokyo Address: Obayashi Gumi Tokyo Head Office (72) Inventor Yasuyuki Hirakawa 2-3-3 Kandajicho, Chiyoda-ku, Tokyo Obayashi Gumi Tokyo Headquarters (72) Inventor Akira Tomioka 2-3-3 Kandajicho, Chiyoda-ku, Tokyo Stock (72) Inventor Yasunori Kondo 1-3-1 Kawasaki-cho, Chuo-ku, Kobe City, Hyogo Prefecture Kawasaki Heavy Industries, Ltd.Kobe Head Office (56) References JP-A-4-92092 (JP, A) ( 58) Field surveyed (Int.Cl. ⁷ , DB name) E21D 9/10

Claims (3)

(57) [Claims] 1. A data collection means for collecting construction data such as machine data, ground data, or boring data obtained during a digging operation by a tunnel digging machine, and a calculation based on data collected by the data collection means. And the ground evaluation means for evaluating the properties of the ground from the calculation result, and the operation of the excavation mechanism including various jacks and grippers according to the properties of the ground evaluated by the ground evaluation means. by selecting a combination, the cutter torque, thrust thrust, thrust extension rate, cutter rotation speed, in the shield machine operating construction management system ing from the selection means controls the operation of the tunnel boring machine with respect excavation direction, etc.
The construction data collected by the data collection means includes:
The process of extending the main gripper to the ground and pressing it
A construction management system for a tunnel machine including test data obtained as a load test . 2. The drilling machine obtained during excavation work by a tunnel excavator.
Machine data, ground data, or boring data
Data collection means for collecting construction data such as data
Calculation based on the data collected by the
And evaluate the properties of the ground from the calculation results
Means and the properties of the ground evaluated by the ground evaluation means
Excavation mechanism consisting of various jacks, grippers, etc.
By selecting a combination of operations, the cutter
Luk, thrust thrust, thrust extension speed, cutter rotation
The operation control of the tunnel excavator with regard to the number,
Operation management system for tunnel machine
The stem, the construction data collected by the data collection means,
The process of pushing and pushing the front gripper to the ground side
Including test data obtained as a load test
Construction management system of tunnel machine. 3. The drilling machine obtained during excavation work by a tunnel excavator.
Machine data, ground data, or boring data
Data collection means for collecting construction data such as data
Calculation based on the data collected by the
And evaluate the properties of the ground from the calculation results
Means and the properties of the ground evaluated by the ground evaluation means
Excavation mechanism consisting of various jacks, grippers, etc.
By selecting a combination of operations, the cutter
Luk, thrust thrust, thrust extension speed, cutter rotation
The operation control of the tunnel excavator with regard to the number,
Operation management system for tunnel machine
The stem, the construction data collected by the data collection means,
Provided separately from the main gripper and front gripper
Include the test data obtained by the
Characteristic construction management system of tunnel machine.