JPH10103954A - Surveying system for tunnel construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transport a surveying machine so as to keep impact or vibration from working thereon along with accurate surveying thereby. SOLUTION: A transporting vehicle 2 is constituted of a body 4, an upper support member 26 where a surveying machine 6 is carried, a plurality of air bags 10, a lower support member 12 where the air bags 10 are carried. In a state where air is injected into the air bags 10, the air bags 10 are expanded to keep the upper support member 26 supported on the lower support member 12 through the air bags 10. Under such a condition, even the transporting vehicle 2 runs, vibration and compact are absorbed by the air bags 10 so as not to be transmitted to the surveying machine 6. When air is discharged from the air bags 10, the upper support member 26 is supported on the lower support member 12 through a flat reduced air bags 10 to allow fixing of the surveying machine 6 on the side of the body 4. Under such a condition, a surveying is accomplished accurately by the surveying machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for measuring a shield machine in tunnel construction by a shield method.

[0002]

2. Description of the Related Art Shielding methods are widely used for excavating tunnels in which trains or automobiles run, or urban tunnels for laying telephone lines or power lines or constructing water and sewage systems. In order to excavate a tunnel in the correct direction with this method, it is important to set the direction of the shield machine accurately.

[0003] Therefore, conventionally, there has been an operation of measuring a plurality of positions on the shield machine with a surveying instrument, confirming the position and the direction of the shield machine, and correcting the direction of the shield machine as necessary. When surveying with a surveying instrument, it is necessary to transport the surveying instrument in the tunnel to the top of the tunnel where the shield machine is excavating. This transport can be done manually, but is labor intensive and time consuming, especially when the tunnel is long and small. Therefore, it is preferable to transport the vehicle on a rail laid in the tunnel.

[0004]

By the way, a surveying instrument is a precision instrument including an optical system and the like, and must be handled very carefully. Therefore, care must be taken not to apply shock or vibration during transportation. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a tunnel capable of transporting a surveying instrument without applying shock or vibration to the surveying instrument and reliably performing surveying by the surveying instrument. To provide a surveying system for construction.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a target mounted on a different location on a shield machine, and a surveying device which emits laser light toward the target to measure the position of the target. And a tunnel construction surveying system including a vehicle and a vehicle that carries the surveying device movably disposed via wheels on a rail laid in the tunnel, wherein the vehicle has a lower support disposed on its chassis. A member, a plurality of air bags disposed on the lower support member, an upper support member disposed on the plurality of air bags, and on which the surveying instrument is mounted, and injecting gas into the air bags. A gas injection device, and an exhaust device for discharging gas in the air bag, wherein the air bag is inflated by injecting gas into the air bag, and the lower support member and the upper support member are separated from each other. Running Transportation of the surveying instrument is performed by, evacuated and the bladder, characterized in that the surveying by the upper support member and the surveying instrument in supporting the state on the lower support member is carried out. Further, the present invention is characterized in that, in a state where the air is inflated by injecting the gas, the upper support member is supported in a state where its movement is restricted in the front, rear, left and right directions. Further, the invention is characterized in that the gas injection device, the exhaust device, and the surveying instrument can be remotely operated. Further, the present invention is characterized in that the surveying instrument is mounted on the upper support member via a leveling device for adjusting the orientation of the surveying instrument. Further, the present invention is characterized in that the leveling device can be remotely operated.

According to the present invention, an air bag is arranged on a chassis of a vehicle, a gas is injected into the air bag to inflate the air bag, a surveying instrument is placed on the inflated air bag, and the vehicle is moved. Transport the surveying instrument. Then, when performing surveying, the gas in the air bag is exhausted by the exhaust device, and the surveying instrument is brought into a state of being supported on the undercarriage side. That is, in the present invention, when moving the vehicle, the surveying instrument is supported on the chassis through the air bag inflated by injecting gas. Is absorbed by the air bag and can be transported safely without damaging the surveying instrument. When performing surveying, the surveying instrument is supported on the undercarriage side, and the surveying is reliably performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an example of a survey vehicle transporting vehicle constituting a survey system for tunnel construction according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a front view thereof. First, the transporting vehicle of the surveying instrument will be described in detail with reference to these drawings. As shown in FIGS. 1 to 3,
The transport vehicle 2 of the surveying instrument (hereinafter, also simply referred to as the transporting vehicle 2) includes a chassis 4, a stand 8 on which the surveying instrument 6 is mounted, a plurality of air bags 10, and a lower support on which the air bags 10 are mounted. Member 1
2 and the like.

The transport vehicle 2 is for transporting a surveying instrument 6 for measuring the position and direction of a shield machine in a tunnel for excavating by a shield method. A rail 14 is laid in the tunnel, and the chassis 4 is arranged on the rail 14 via wheels 16 so as to be able to travel.

The lower support member 12 is disposed substantially at the center of the chassis 4, and the air bag 10 is disposed on the lower support member 12. The lower support member 12 includes a central first flat portion 18,
And a first peripheral portion 20 formed to incline upward from the peripheral edge of the first flat portion 18.

A plurality of the air bladders 10 are provided on the first flat portion 18 and the first peripheral portion 20, respectively, and are attached to predetermined locations so as not to move.
Each air bag 10 is made of rubber or synthetic resin, and is connected to a compressor 22 (gas injection device) installed on the chassis 4 in front of the lower support member 12 by piping (not shown). Then, the compressed air sent from the compressor 22 is injected into each of the air bladders 10 through the above piping, and each of the air bladders 10 expands. On the other hand, an electromagnetic valve (exhaust device) (not shown) is connected to the pipe, and the air in each air bag 10 can be discharged by operating the valve as needed.

The lower support member 12 is provided on a lower portion 24 of the gantry 8.
The upper support member 26 is provided so as to be opposed to. The upper support member 26 includes a central second flat portion 28 engageable with the first flat portion 18 of the lower support member 12, and a second second flat portion 28 of the lower support member 12.
Upwardly inclined second portion engageable with the peripheral portion of
The upper support member 12 is supported on the air bag 10 on the lower support member 12.

FIG. 4 shows the lower support member 12 and the upper support member 2.
4A and 4B are diagrams showing the air bag 10 in more detail, wherein FIG.
FIG. 3C is a schematic cross-sectional side view showing a state in which the air inside is discharged, and FIG. As shown in FIG. 4C, on the upper surface of the first flat portion 18 of the lower support member 12,
Engagement projections 32 are provided at three places, while the upper support member 2
In the second flat portion 28, an engagement member 36 having an engagement concave portion 34 engageable with the engagement projection 32 is provided so as to protrude at a position corresponding to each of the engagement projections 32. I have.

As shown in FIG. 4A, each air bag 10
When the air is injected into the air bag 10, the air bag 10 is inflated. As a result, each of the engagement projections 32 and each of the engagement recesses 34 are separated from each other, and the second flat portion 28 of the upper support member 26 is separated from the first flat portion 18 of the lower support member 12 in parallel with each other. The second peripheral portion 30 of the member 26 is spaced apart in parallel with the first peripheral portion 20 of the lower support member 12, and the movement of the upper support member 26 is restricted in the left, right, front and rear directions. Is in a state of being supported above the lower support member 12 via the air bag 10. In addition, as shown in FIG.
When the air is discharged from 0, the air bag 10 shrinks into a flat shape. As a result, the engagement projections 32 and the engagement recesses 34 engage to determine the position of the upper support member 26 with respect to the lower support member 12, and the second flat portion 28 of the upper support member 26 and the lower support member 12 and the first peripheral portion 20 of the lower support member 12 is in parallel with the second flat portion 18 of the upper support member 26 and the second peripheral portion 30 of the upper support member 26 are parallel. The airbag 10 is supported above the member 12 via the flattened air bag 10.

As shown in FIGS. 1 and 2, the gantry 8 further includes a table 38, a table support member 40, a rough leveling device 42, and the like. The table 38 is swingably supported by a table support member 40 erected on the flat portion 28.
Is supported by a rough leveling device 42.

The rough leveling device 42 is composed of two hydraulic cylinders 44 arranged at an interval in the left-right direction of the vehicle, and these hydraulic cylinders 44 have a hydraulic control device installed on the chassis 4 behind them. The oil pressure is applied by 46. The table 38 is adjusted by these hydraulic cylinders 44 so that both rear corners are raised and lowered and the table surface is horizontal.

A leveling table 48 is mounted on the table 38, and the surveying instrument 6 is installed thereon. Leveling table 48
Is a comparatively rough level adjustment by the coarse leveling device 42, and then precisely adjusts the level so that the surveying instrument 6 is horizontally arranged. I have. The operations of the surveying instrument 6, the leveling table 48, the hydraulic control device 46, the compressor 22, and the solenoid valve are all remotely controlled by control signals received by a radio 50 mounted on the chassis 4.

A television camera 52 is attached to the front of the chassis 4 so as to face forward.
Is sent to, for example, a ground management office via the wireless device 54, and is displayed on a television monitor installed in the management office.

FIG. 5 is a schematic diagram showing an example of a survey system for tunnel construction according to the present invention, which is constructed using such a transport vehicle 2. As shown in FIG. The survey system 56 for this tunnel construction includes the above-described transport vehicle 2 disposed in the tunnel 58,
It includes a driving vehicle 60, a rear bogie 62, and the like, and further includes a traveling operation device 66, a television monitor 68, and a surveying control device 70 including a personal computer, which are provided in a management office 64 on the ground.

The driving vehicle 60 includes a motor (not shown) as a driving means and a radio device 72, and is arranged on the rail 14 via wheels so as to be able to travel. The driving vehicle 60 is connected to the rear portion of the transport vehicle 2. Therefore, the transport vehicle 2 can be driven by driving the driving vehicle 60 by remotely operating a motor through the wireless device 72.

The rear bogie 62 is disposed on the rail 14 further behind the driving vehicle 60. This rear trolley 6
2 are equipped with radios 74, 76, 78 for transmitting and receiving signals to and from the radios 54, 50, 72, respectively. A cable 80 is connected between the radio 78 and the traveling operation device 66 of the management office 64. And the radios 74, 7
The TV monitor 68 and the surveying control device 70 are connected by a cable 82.

On the shield machine 84 installed at the excavation point in the tunnel 58, two or three targets 86 are mounted, while in the tunnel 58, two different reference points 88 for surveying. Is provided.

Next, the operation of the surveying system 56 for tunnel construction constructed as described above will be described. Surveying instrument 6
In order to measure the position of the shield machine 84, it is necessary to first move the transport vehicle 2 and arrange the surveying instrument 6 at an appropriate position. Therefore, the operator of the management office 64 first operates the survey control device 70, and
Compressed air is injected into each air bladder 10 to inflate each air bladder 10 by controlling the compressor 22. As a result, the air bladder 10 is in the state shown in FIGS. Supported. Even if the transport vehicle 2 travels in this state, vibrations and shocks generated during traveling are absorbed by the inflated air bag 10 and are not transmitted to the surveying instrument 6. Therefore, the surveying instrument 6 which is a precision instrument can be safely transported.

Then, the operator operates the traveling operation device 66 to control the motor of the driving vehicle 60 through the wireless devices 78 and 72 to move the driving vehicle 60 and move the transport vehicle 2. At this time, the operator operates the TV camera 52
Can be operated while watching the video taken by the TV monitor 68. The video taken by the television camera 52 is transmitted to the management office 64 through the wireless devices 54 and 74.
And is displayed on the television monitor 68.

When the transport vehicle 2 reaches a position at an appropriate distance from the shield machine 84, the transport operation device 66 is operated to stop the transport vehicle 2 at that position, and then the survey control device 70 is operated. The electromagnetic valves are opened through the wireless devices 76 and 50, and the air in each air bag 10 is discharged from the air bag 10. As a result, the engaging projections 32 and the engaging recesses 34 engage, the upper support member 26 is positioned on the lower support member 12, and the gantry 8 is fixed on the chassis 4.

Thereafter, the surveying control device 70 is operated, and the hydraulic control device 46 and the leveling stand 4 are transmitted through the wireless devices 76 and 50.
8 are sequentially controlled so that the table 38 of the gantry 8 is horizontal. Thereafter, a laser beam is emitted from the surveying instrument 6 toward the target 86 on the shield machine 84 and the reference point 88 in the tunnel 58, and the positions of the target 86 and the reference point 88 in the three-dimensional orthogonal coordinate system are measured. The measurement result is sent to the management office 64 on the ground via the wireless devices 50 and 76, and necessary calculations are performed by a personal computer constituting the survey control device 70, and the direction of the shield machine 84 is obtained.

FIG. 6 is a schematic plan view of a tunnel for explaining surveying by the surveying instrument 6. As shown in this figure,
By measuring the positions of the two reference points 88 whose coordinate values are known by the surveying instrument 6, the position of the surveying instrument 6 is first known. Therefore, from the measurement results of the positions of the two targets 86, their absolute positions are determined. I understand. Accordingly, the direction shift d of the shield machine 84 shown in FIG. 6 can be obtained, and the position and direction of the shield machine 84 can be corrected.

As described above, according to the present invention, when the transport vehicle 2 is moved, the surveying instrument 6 is supported on the chassis 4 via the air bag 10 inflated by injecting gas, so that the chassis 4 travels. Even if vibrations or shocks are generated, they are absorbed by the air bag 10 and can be safely transported without damaging the surveying instrument 6. Further, at the time of surveying, since the air in the air bag 10 is evacuated, the upper support member 26 is supported by the lower support member 12, and the surveying instrument 6 is supported on the chassis 4, the surveying by the surveying instrument 6 can be reliably performed. . In the embodiment, the air bag 1
In a state where the air of zero is evacuated, the engagement convex portion 32 and the engagement concave portion 34 are removed.
And the upper support member 26 is positioned with respect to the lower support member 12, which is advantageous in that the surveying by the surveying instrument 6 can be performed more reliably.

In the above embodiment, the transport vehicle 2 is connected to a driving vehicle for traveling. However, the transport vehicle 2 itself is equipped with driving means such as a motor, and is driven by remote control. Of course it is possible. In the above embodiment, two or three targets are attached to the shield machine 84. However, the number of targets can be increased to further increase the accuracy of position measurement. It is also effective to provide a shutter in front of the target for protecting the target, and to open the shutter only when measurement is performed. The operation of the shutter may be performed remotely.

[0029]

As described above, according to the present invention, targets mounted on different places on a shield machine are provided.
Tunnel construction including a surveying instrument that emits laser light toward the target to measure the position of the target, and a vehicle that is movably arranged via wheels on rails laid in the tunnel and transports the surveying instrument In the surveying system, the vehicle has a lower support member disposed on its undercarriage, and a plurality of air bladders disposed on the lower support member,
An upper support member disposed on the plurality of air bags and on which the surveying instrument is mounted, a gas injection device for injecting gas into the air bags, and an exhaust device for discharging gas from the air bags. Injecting gas into the air bag, inflating the air bag, carrying the surveying instrument by running the vehicle in a state where the lower support member and the upper support member are separated, degassing the air bag,
The surveying by the surveying instrument is performed while the upper support member is supported on the lower support member. Therefore, according to the present invention, when the vehicle is moved, the surveying instrument is supported on the chassis through the air bag inflated by injecting gas. Can be transported safely without damaging the surveying instrument, and the gas in the airbag is exhausted during surveying, and the surveying instrument is supported on the undercarriage side to ensure the surveying by the surveying instrument. Will be

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a transport vehicle of a surveying instrument constituting a surveying system for tunnel construction according to the present invention.

FIG. 2 is a plan view showing an example of a surveying vehicle transporting vehicle constituting the surveying system for tunnel construction according to the present invention.

FIG. 3 is a front view showing an example of a transport vehicle of a surveying instrument which forms the surveying system for tunnel construction according to the present invention.

4A and 4B are diagrams showing the lower support member and the upper support member in detail, wherein FIG. 4A is a schematic cross-sectional side view showing a state where the air bag is inflated, and FIG. 4B is a state where air in the air bag is discharged. (C) is a plan view of the lower support member.

FIG. 5 is a schematic configuration diagram illustrating an example of a survey system for tunnel construction of the present invention configured using a transport vehicle.

FIG. 6 is a schematic plan view of a tunnel for explaining surveying by a surveying instrument.

[Explanation of symbols]

 2 Transport vehicle 4 Undercarriage 6 Surveying instrument 10 Air bag 12 Lower support means 26 Upper support means 42 Coarse leveling device 48 Leveling table 50 Radio 52 Television camera 54 Radio 64 Management office 66 Travel operating device 70 Survey control device

Continuing from the front page (72) Inventor Shinji Yoshida 4-6-115 Sendagaya, Shibuya-ku, Tokyo Inside Fujita Co., Ltd. (72) Inventor Shigenobu Suzuki 3-8-7 Nobitome, Niiza-shi, Saitama Prefecture Captop Engineering Co., Ltd. Inside

Claims (5)

[Claims] A target attached to a different location on a shield machine; a surveying instrument for emitting laser light toward the target to measure the position of the target;
In a surveying system for tunnel construction including a vehicle that is arranged to be able to travel via wheels on a rail laid in a tunnel and that carries the surveying instrument, the vehicle has a lower support member arranged on its undercarriage, A plurality of air bags arranged on the lower support member; an upper support member arranged on the plurality of air bags and on which the surveying instrument is mounted; and a gas injector for injecting gas into the air bags. And an exhaust device for discharging gas in the air bag, inflating the air bag by injecting gas into the air bag, and measuring the vehicle by running the vehicle in a state where the lower support member and the upper support member are separated from each other. A surveying system for tunnel construction, wherein the transport of the machine is performed, the gas in the air bag is evacuated, and the surveying is performed by the surveying instrument while the upper supporting member is supported on the lower supporting member. 2. The tunneling surveying system according to claim 1, wherein the upper support member is supported in a state where its movement is restricted in the front-rear and left-right directions in a state where the air is inflated by injecting the gas. . 3. The tunnel surveying system according to claim 1, wherein the gas injection device, the exhaust device, and the surveying device can be remotely operated. 4. The surveying system according to claim 1, wherein the surveying instrument is mounted on the upper support member via a leveling device for adjusting the orientation of the surveying instrument. 5. The survey system according to claim 4, wherein the leveling device is remotely operable.