CN209879004U - TRT test seismic source excitation air hammer in double-shield TBM environment - Google Patents
TRT test seismic source excitation air hammer in double-shield TBM environment Download PDFInfo
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- CN209879004U CN209879004U CN201920937075.0U CN201920937075U CN209879004U CN 209879004 U CN209879004 U CN 209879004U CN 201920937075 U CN201920937075 U CN 201920937075U CN 209879004 U CN209879004 U CN 209879004U
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Abstract
The utility model discloses a TRT test focus arouses air hammer under tunnel advance geology forecast geophysical prospecting test technical field, include unable adjustment base, high adjusting device and arouse the air hammer, high adjusting device installs on unable adjustment base, arouses the air hammer and installs on high adjusting device, arouse the air hammer and include tup, air compressor and controller, the tup passes through the pipeline with air compressor and links to each other, is equipped with the solenoid valve on the pipeline, controller control air compressor and solenoid valve work. The utility model discloses a set up one and be convenient for remove and lay and height-adjustable arouse the air hammer, utilize to arouse the air hammer and come the hammering rock face, can be applicable to constrictive environment in the construction of two shield TBMs to can realize not co-altitude's hammering, make the TRT test more convenient, reduce tester intensity of labour, the test result is also more accurate.
Description
Technical Field
The utility model relates to a tunnel advance geology forecast geophysical prospecting test technical field especially relates to a focus excitation device to TRT geophysical prospecting test means under two shield TBM construction process.
Background
At present, the application of the double-shield TBM tunnel construction technology in actual engineering is more and more extensive. In the construction process, advanced geological forecast work is often required to be carried out based on geophysical prospecting testing means and geological comprehensive analysis technology so as to guide the smooth construction of the double-shield TBM, avoid the construction and reduce the safety and progress influence of major geological disasters on the construction. TRT is a common geophysical prospecting test means in advance geological prediction in the construction of tunnels by the conventional drilling and blasting method at present.
Nowadays, a conventional seismic source excitation mode in the TRT geophysical prospecting test is to hammer a rock wall by using a large hammer to realize seismic source excitation. The method is suitable for the construction environment of the traditional drilling and blasting method. However, in a double-shield TBM construction environment, due to the special equipment structure and construction and support processes of the double-shield TBM, the rock wall is blocked by the shield body and the duct piece and is not directly exposed, so that the exciter of the TRT method geophysical prospecting test means in the advance forecasting work is difficult to hammer and excite the rock wall. Even when the telescopic shield is pulled open, the width of the telescopic shield is about 30cm generally, and a distance of 10cm is reserved between the shield body and the rock wall, so that the telescopic shield is interfered and blocked by the shield body and the hammer handle, and the rock surface is difficult to hammer by manually swinging the hammer.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough that current artifical hammering rock face exists, the utility model aims to solve the technical problem that: the RT test seismic source excitation air hammer is suitable for a double-shield TBM construction environment.
The utility model provides a technical scheme that its technical problem adopted is:
the TRT test seismic source excitation air hammer in the double-shield TBM environment comprises a fixed base, a height adjusting device and an excitation air hammer, wherein the height adjusting device is installed on the fixed base, and the excitation air hammer is installed on the height adjusting device.
Further, the excitation air hammer comprises a hammer head, an air compressor and a controller, the hammer head is connected with the air compressor through a pipeline, an electromagnetic valve is arranged on the pipeline, and the controller controls the air compressor and the electromagnetic valve to work.
Further, the fixed base is provided with a roller below, and the fixed base is provided with a handle at one end deviating from the excited air hammer head.
Further, the height adjusting device is an electro-hydraulic lever, and the electro-hydraulic lever is also controlled by the controller.
The utility model has the advantages that: through setting up one and being convenient for remove and lay and height-adjustable arouse the air hammer, utilize to arouse the air hammer and come the hammering rock face, can be applicable to narrow environment in the construction of two shield TBMs to can realize not co-altitude hammering, make the TRT test more convenient, reduce tester intensity of labour, the test result is also more accurate.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Marked in the figure as 1-fixed base, 2-height adjustment device, 3-exciting air hammer, 4-roller, 5-handle, 31-hammer head, 32-air compressor, 33-controller.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses TRT test focus arouses the air hammer under two shield TBM environment, include unable adjustment base 1, height adjusting device 2 and arouse the air hammer 3, height adjusting device 2 installs on unable adjustment base 1, arouses the air hammer 3 to install on height adjusting device 2.
The use process of the device is as follows:
the method comprises the following steps: the TBM is stopped, the telescopic shield is pulled open, the width of the telescopic shield is larger than 20cm, and the exposed rock wall is used as a seismic source excitation section;
step two: before geophysical prospecting test, a tester cleans rock slag on a rock wall, selects three hammering points with different heights, and marks the hammering points with red paint
Step three: the excited air hammer is placed to a test part, and the height of the air hammer is adjusted to ensure that the height of the hammer head is consistent with that of the hammering point;
step four: controlling and exciting an air hammer to hammer the rock surface;
step five: adjusting the height to carry out hammering with different hammering points;
step six: and taking out the excited air hammer, closing the telescopic shield, continuously tunneling by the TBM, stopping the machine when the telescopic shield reaches the hammering excited section specified by the TRT test, and pulling the telescopic shield to carry out the next circular hammering.
The excitation air hammer 3 is similar to a common impact air hammer in structure and mainly comprises a hammer head 31, an air compressor 32 and a controller 33, wherein the hammer head 31 is connected with the air compressor 32 through a pipeline, an electromagnetic valve is arranged on the pipeline, and the controller 33 controls the air compressor 32 and the electromagnetic valve to work. Besides, in order to facilitate the excitation of the air hammer 3 to be installed on the height adjusting device 2, the air hammer further comprises a plurality of conventional fixed installation frames, and the position of the hammer head 31 can be returned through arranging a spring or an electromagnet, and the air hammer is similar to a common air hammer.
The working principle of the exciting air hammer is as follows: in a natural state, the hammer head 31 is at a reset position close to the air compressor 32, after the air hammer is started to be excited, the air compressor 32 firstly sucks air and compresses the air, after certain pressure is reached, the electromagnetic valve is opened, the air rushes out outwards to push the hammer head 31 to be separated from the resistance of the spring or the electromagnet, the hammer head moves forwards to impact the rock surface, and finally the hammer head returns to the reset position under the action of the spring or the electromagnet. The entire process is automated or semi-automated by the controller 33.
Arouse the air hammer for convenient the removal and carry out the hammering to different positions unable adjustment base 1's below is equipped with gyro wheel 4, unable adjustment base 1 is equipped with handle 5 in the one end that deviates from to arouse the 3 tups of air hammer. The tester can push the fixed base 1 to a preset position by holding the handle 5, and can also hold the handle 5 in the hammering process to play a role in auxiliary fixation.
The height adjusting device 2 is preferably an electric hydraulic rod, the height adjustment is stable, the bearing capacity is sufficient, and in order to ensure the stability of the structure, four electric hydraulic rods which are lifted synchronously are preferably adopted and are also controlled by the controller 33, so that the convenience of operation is improved.
The utility model discloses a set up one and be convenient for remove and lay and height-adjustable arouse the air hammer, utilize to arouse the air hammer and come the hammering rock face, can be applicable to constrictive environment in the construction of two shield TBMs to can realize not co-altitude's hammering, make the TRT test more convenient, reduce tester intensity of labour, the test result is also more accurate, has fine practicality and application prospect.
Claims (4)
1. TRT test focus arouses air hammer under two shield TBM environment, characterized by: the device comprises a fixed base (1), a height adjusting device (2) and an exciting air hammer (3), wherein the height adjusting device (2) is installed on the fixed base (1), and the exciting air hammer (3) is installed on the height adjusting device (2).
2. The TRT seismic source excitation air hammer in a double shield TBM environment of claim 1, wherein: the excitation air hammer (3) comprises a hammer head (31), an air compressor (32) and a controller (33), the hammer head (31) is connected with the air compressor (32) through a pipeline, an electromagnetic valve is arranged on the pipeline, and the controller (33) controls the air compressor (32) and the electromagnetic valve to work.
3. The TRT seismic source excitation air hammer in a double shield TBM environment of claim 2, wherein: the lower part of the fixed base (1) is provided with a roller (4), and the fixed base (1) is provided with a handle (5) at one end deviating from the hammer head of the exciting air hammer (3).
4. The TRT seismic source excitation air hammer in a double shield TBM environment of claim 2, wherein: the height adjusting device (2) is an electric hydraulic rod, and the electric hydraulic rod is also controlled by the controller (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920937075.0U CN209879004U (en) | 2019-06-20 | 2019-06-20 | TRT test seismic source excitation air hammer in double-shield TBM environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920937075.0U CN209879004U (en) | 2019-06-20 | 2019-06-20 | TRT test seismic source excitation air hammer in double-shield TBM environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209879004U true CN209879004U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920937075.0U Active CN209879004U (en) | 2019-06-20 | 2019-06-20 | TRT test seismic source excitation air hammer in double-shield TBM environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913211A (en) * | 2020-07-24 | 2020-11-10 | 山东交通学院 | Intelligent TRT test seismic source excitation device and method |
| CN112363204A (en) * | 2020-10-20 | 2021-02-12 | 山东大学 | Pneumatic triggering device and method for shield tunnel geological evaluation |
-
2019
- 2019-06-20 CN CN201920937075.0U patent/CN209879004U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913211A (en) * | 2020-07-24 | 2020-11-10 | 山东交通学院 | Intelligent TRT test seismic source excitation device and method |
| CN112363204A (en) * | 2020-10-20 | 2021-02-12 | 山东大学 | Pneumatic triggering device and method for shield tunnel geological evaluation |
| CN112363204B (en) * | 2020-10-20 | 2021-11-19 | 山东大学 | Pneumatic triggering device and method for shield tunnel geological evaluation |
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