CN203430571U - Arrangement structure of three-tunnel tunneling micro-shock sensor - Google Patents
Arrangement structure of three-tunnel tunneling micro-shock sensor Download PDFInfo
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- CN203430571U CN203430571U CN201320424677.9U CN201320424677U CN203430571U CN 203430571 U CN203430571 U CN 203430571U CN 201320424677 U CN201320424677 U CN 201320424677U CN 203430571 U CN203430571 U CN 203430571U
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- 230000005641 tunneling Effects 0.000 title abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 50
- 238000009412 basement excavation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 abstract description 7
- 239000011435 rock Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004836 empirical method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
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Abstract
The utility model relates to an arrangement structure of a three-tunnel tunneling micro-shock sensor. According to the arrangement structure of the three-tunnel tunneling micro-shock sensor, the sequence of three adjacent tunnels in a field in the tunneling process is fully used, so that the arrangement of the sensor is optimally designed, and the accuracy of rockburst prediction is improved. According to the technical scheme, the arrangement structure of the three-tunnel tunneling micro-shock sensor is provided with the three adjacent tunnels and the diameter of each tunnel is d. The arrangement structure of the three-tunnel tunneling micro-shock sensor is characterized in that the middle tunnel is a micro-shock monitoring tunnel, the tunnels at the two sides are both ahead tunneled tunnels, a micro-shock monitoring section I is arranged on the portion 2d behind the tunnel face of the micro-shock monitoring tunnel, and micro-shock monitoring sections II are arranged on the portion, 2d before the tunnel face of the micro-shock monitoring tunnel, of each ahead tunneled tunnel and on the portion, d behind the tunnel face of the micro-shock monitoring tunnel, of each ahead tunneled tunnel. The arrangement structure of the three-tunnel tunneling micro-shock sensor is suitable for the field of deeply-buried long large tunnel engineering.
Description
Technical field
The utility model relates to a kind of three hole driving microseismic sensors arrangements.Be applicable to Deep-buried Long And Big tunnel engineering field.
Background technology
Along with the continuous increase of engineering buried depth, the engineering construction risk that rock burst causes is the key technology difficult problem that must face and solve.The generation of rock burst is mainly owing to the sudden outburst of energy in rock or stress.Based on this understanding, researcher is doing a large amount of work aspect the prediction of rock burst, experienced long process of the test of groping, but general thought and method do not change, adhere to utilizing always and accept the rock mass mode that dynamic wave propagates of breaking and help predict rock burst.Think stress concentrate and energy processes in, in rock mass, always produce some responses, be mainly that the expansion due to rock mass internal fissure discharges certain energy.When the energy discharging is propagated in rock mass with the form of dynamic wave, the sensor that just can be disposed in rock mass is caught, and therefore calculates and produce the position releasing energy, and micro seismic monitoring carrys out work based on this principle.
Microseismic monitoring system has been applied in deep-buried underground engineering practice very at large, almost becomes unique practicality means of the Prediction for Rock Burst forecast except empirical method.In recent years, along with constantly improving and the raising of computer process ability of monitoring instrument, micro seismic monitoring has more successfully helped judgement and has avoided rockburst risk in a lot of engineerings, but be different from the monitorings such as stress, distortion, micro seismic monitoring has higher requirement to the arrangement of sensor, must consider in conjunction with positioning precision and engineering looks, sensor is optimized to layout.
Unsuitable sensor arrangement is not only unfavorable for obtaining effective microseismic signals, and the microseism information such as energy magnitude that are difficult to accurate microquake sources location, are difficult to accurate description microseism generation, and then affect the stability of location algorithm, add in Deep-buried Long And Big inrush during tunneling microseism Real-Time Monitoring different from the monitoring of the engineering (as Mine Stope) of other types, the particularity with self: long linear engineering, monitoring objective (near hole section face) move, and require the convenient, flexible movement of sensor energy.Under the impact of above factor, existing technology is also difficult to realize the location of microseism accurately.
Summary of the invention
The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, a kind of three hole driving microseismic sensors arrangements are provided, to make full use of the priority of on-the-spot three adjacent tunnel excavation processes, the layout of sensor is optimized to design, improves the accuracy of Prediction for Rock Burst.
The technical scheme that the utility model adopts is: a kind of three hole driving microseismic sensors arrangements, there are three adjacent tunnels, footpath, hole is d, it is characterized in that: middle tunnel is micro seismic monitoring tunnel, both sides are leading tunnel excavation, and wherein micro seismic monitoring tunnel 2d place after its face arranges micro seismic monitoring section I; Leading tunnel excavation before the face of micro seismic monitoring tunnel after 2d place and face d place all arrange micro seismic monitoring section II.
In described micro seismic monitoring section I, be furnished with 4 microseismic sensors, and 4 microseismic sensors are 1.5d apart from micro seismic monitoring tunnel center, wherein 2 microseismic sensors are arranged on the center line that tunnel section is 180 °, and other 2 microseismic sensors are arranged in this center line and are in the radial line of 45 ° of angles.
In described micro seismic monitoring section II, be furnished with 3 microseismic sensors, and 3 microseismic sensors are 1.5d apart from leading tunnel excavation center, microseismic sensors is arranged in leading tunnel excavation near micro seismic monitoring tunnel side, and 3 microseismic sensors are with a middle horizontal arrangement, all the other 2 the 30 ° of layouts of being respectively separated by up and down.
The beneficial effects of the utility model are: the favourable arrangement form that the utility model utilizes three tunnels successively to tunnel, utilize leading tunnel excavation to arrange leading microseismic sensors to micro seismic monitoring tunnel, the microseismic event that catches front of tunnel heading changes, at micro seismic monitoring tunnel rear, arrange one group of micro seismic monitoring section simultaneously, with micro seismic monitoring section in leading tunnel excavation in correspondence with each other, realized in the omnibearing monitoring of tunnel key position.Meanwhile, the depth of burying of this arrangement form sensor is less, can be for convenience detach and recycle, be conducive to reduce monitoring expense.
Accompanying drawing explanation
Fig. 1 is layout schematic diagram of the present utility model.
Fig. 2 is A-A and the B-B sectional view of Fig. 1.
Fig. 3 is D-D and the E-E sectional view of Fig. 1.
Fig. 4 is the C-C sectional view of Fig. 1.
The specific embodiment
As shown in Figure 1, the present embodiment has proposed a kind of microseismic sensors arrangement form being applicable under three hole driving conditions, and the priority that makes full use of on-the-spot three adjacent tunnel excavation processes is optimized design to the layout of sensor.In the present embodiment, the footpath, hole of tunnel is d, and in three tunnels, middle tunnel is for being micro seismic monitoring tunnel 1, and both sides are leading tunnel excavation 2.
The stress adjustment that tunnel excavation causes is generally after face within footpath, the hole scope of 2 times, and therefore in micro seismic monitoring tunnel 1,2 places, Bei Dong footpaths arrange micro seismic monitoring section I.As shown in Figure 4, in this micro seismic monitoring section I, be furnished with 4 microseismic sensors 3, and 4 microseismic sensors 3 are 1.5 Bei Dong footpaths apart from micro seismic monitoring tunnel 1 center, wherein 2 microseismic sensors 3 are arranged on the center line that tunnel section is 180 °, and other 2 microseismic sensors 3 are arranged in this center line and are in the radial line of 45 ° of angles.
Because the stress adjustment of front of tunnel heading arises from front of tunnel heading, be greater than 2 Bei Dong footpaths, therefore utilize leading tunnel excavation 2 to arrange a micro seismic monitoring section II in 2 Bei Dong footpaths, micro seismic monitoring tunnel 1 the place ahead.In order to realize the location of microseismic event, in the same micro seismic monitoring section II of arranging in the 1 Bei Dong footpath, micro seismic monitoring tunnel face rear of leading tunnel excavation 2.As shown in Figure 2 and Figure 3, in micro seismic monitoring section II, be furnished with 3 microseismic sensors 3, and 3 microseismic sensors 3 are 1.5 Bei Dong footpaths apart from corresponding leading tunnel excavation 2 centers, 3 microseismic sensors 3 are arranged in corresponding leading tunnel excavation 2 near micro seismic monitoring tunnel 1 side, and 3 microseismic sensors are with a middle horizontal arrangement, all the other 2 the 30 ° of layouts of being respectively separated by up and down.
Claims (3)
1. microseismic sensors arrangement is tunneled in a hole, there are three adjacent tunnels, footpath, hole is d, it is characterized in that: middle tunnel is micro seismic monitoring tunnel (1), both sides are leading tunnel excavation (2), and wherein micro seismic monitoring tunnel (1) 2d place after its face arranges micro seismic monitoring section I; Leading tunnel excavation (2) before the face of micro seismic monitoring tunnel (1) after 2d place and face d place all arrange micro seismic monitoring section II.
2. microseismic sensors arrangements are tunneled in three holes according to claim 1, it is characterized in that: in described micro seismic monitoring section I, be furnished with 4 microseismic sensors (3), and 4 microseismic sensors (3) are 1.5d apart from micro seismic monitoring tunnel (1) center, wherein 2 microseismic sensors (3) are arranged on the center line that tunnel section is 180 °, and other 2 microseismic sensors (3) are arranged in this center line and are in the radial line of 45 ° of angles.
3. microseismic sensors arrangements are tunneled in three holes according to claim 1 and 2, it is characterized in that: in described micro seismic monitoring section II, be furnished with 3 microseismic sensors (3), and 3 microseismic sensors (3) are 1.5d apart from leading tunnel excavation (2) center, microseismic sensors (3) is arranged in leading tunnel excavation (2) near micro seismic monitoring tunnel (1) side, and 3 microseismic sensors (3) are with a middle horizontal arrangement, all the other 2 the 30 ° of layouts of being respectively separated by up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424677.9U CN203430571U (en) | 2013-07-17 | 2013-07-17 | Arrangement structure of three-tunnel tunneling micro-shock sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424677.9U CN203430571U (en) | 2013-07-17 | 2013-07-17 | Arrangement structure of three-tunnel tunneling micro-shock sensor |
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| Publication Number | Publication Date |
|---|---|
| CN203430571U true CN203430571U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320424677.9U Expired - Fee Related CN203430571U (en) | 2013-07-17 | 2013-07-17 | Arrangement structure of three-tunnel tunneling micro-shock sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467436A (en) * | 2015-12-17 | 2016-04-06 | 东北大学 | Method for arranging micro-shock sensors in construction of ultra-deep vertical shaft |
| CN110333531A (en) * | 2019-07-16 | 2019-10-15 | 中国科学院武汉岩土力学研究所 | A kind of fine method for early warning in high-energy environment constructing tunnel rock burst position |
| CN110824550A (en) * | 2019-10-30 | 2020-02-21 | 山东大学 | Tunnel bad geologic body microseismic advanced detection system and method |
| CN114964469A (en) * | 2022-04-21 | 2022-08-30 | 东北大学 | Asymmetric high-stress tunnel blasting vibration testing method and system |
-
2013
- 2013-07-17 CN CN201320424677.9U patent/CN203430571U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467436A (en) * | 2015-12-17 | 2016-04-06 | 东北大学 | Method for arranging micro-shock sensors in construction of ultra-deep vertical shaft |
| CN110333531A (en) * | 2019-07-16 | 2019-10-15 | 中国科学院武汉岩土力学研究所 | A kind of fine method for early warning in high-energy environment constructing tunnel rock burst position |
| CN110824550A (en) * | 2019-10-30 | 2020-02-21 | 山东大学 | Tunnel bad geologic body microseismic advanced detection system and method |
| CN114964469A (en) * | 2022-04-21 | 2022-08-30 | 东北大学 | Asymmetric high-stress tunnel blasting vibration testing method and system |
| CN114964469B (en) * | 2022-04-21 | 2023-07-21 | 东北大学 | Method and system for testing blasting vibration of asymmetric high-stress tunnel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
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| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: Expiration and Termination of 39 Volume 3102 Patent on August 4, 2023 Number: 31-02 Volume: 39 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 |