CN103176204B - Wireless distributed Tunnel prediction sniffer, system and method - Google Patents
Wireless distributed Tunnel prediction sniffer, system and method Download PDFInfo
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Abstract
The invention provides a kind of wireless distributed Tunnel prediction sniffer, system and method, this device comprises control operation terminal, wireless data acquisition device, seismic reflection wave receiving device and seismic event excitation apparatus; The output terminal of described seismic event excitation apparatus is connected with the input end of described wireless data acquisition device respectively with the output terminal of described seismic reflection wave receiving device; The output terminal of described wireless data acquisition device is connected with the input end of described control operation terminal.Adopt wireless distributed instrument (24 A/D) and hammering focus working method, fast and easy can collect high-precision signal, and can ensure that work safety is carried out; Adopt receive both sides hammering recording geometry test mode at 3, effectively can obtain three dimensions elastic wave field data, carry out high-precision three-dimensional imaging, also there is structure simplification, energy consumption is less, production cost is low, layout is simple, detection accuracy is high, measure efficiency advantages of higher.
Description
Technical field
The invention belongs to Tunnel prediction Detection Techniques field, be specifically related to a kind of wireless distributed Tunnel prediction sniffer, system and method.
Background technology
At present, application seismic event (elastic wave) reflectometry carries out tunnel geological prediction, is one of the most frequently used most effective method.Concrete, seismic reflection method is: artificial excitation's seismic event, and when seismic event forward direction runs into wave impedance interface, a part of signal can be reflected back, and the signal be reflected back is sometimes referred to as echoed signal; Be positioned in the wave detector at rear and signal acquiring system collection and record echoed signal, by carrying out the engineering properties, position, occurrence, scale etc. of analyzing engineering geology, hydrogeology and the unfavorable geologic body that can understand front, tunnel front to echoed signal, thus for taking supporting measure to provide reliable geologic basis in advance, avoid the generation of engineering accident.
The precision of seismic reflection method forecast result and accuracy depend primarily on two aspects: 1) how to be optimized the recording geometry that method of testing uses and to improve, and effectively obtain three dimensions cove plane data, and then improve imaging precision and quality; 2) design high precision instrument system, improve the signal to noise ratio (S/N ratio) of collection signal, research signal denoising and analyzing and processing technology, effectively suppress undesired signal further, ensures image quality.
In prior art, for overcoming above-mentioned technical matters, improving the accuracy of forecast result, usually adopting following measures: the energy 1) strengthening focus; 2) frequency of detectable signal is reduced; 3) figure place (as adopted the A/D of 32) of A/D is improved.
But said method mainly exists following problem: 1) manufacturing capacity of current A/D chip high-order is in the world limited, and when A/D figure place is brought up to a certain degree, be difficult to improve signal to noise ratio (S/N ratio) further; 2) when reducing detectable signal (focus) frequency, can detection range be increased, but directly can reduce the resolution of detection; 3) energy of focus is by its explosive quantitative limitation, when using excessive explosive, can there is the danger of blowing up tunnel; And using fried big gun can strengthen potential safety hazard as focus, the personnel health of long campaigns being exploded to big gun can bring serious harm etc.Therefore, how research effectively improves the accuracy of Tunnel prediction detection method, has important practical significance.
Summary of the invention
For the defect that prior art exists, the invention provides a kind of wireless distributed Tunnel prediction sniffer, system and method, adopt wireless distributed instrument (24 A/D) and hammering focus working method, fast and easy can collect high-precision signal, and can ensure that work safety is carried out; Adopt receive both sides hammering recording geometry test mode at 3, effectively can obtain three dimensions elastic wave field data, carry out high-precision three-dimensional imaging, F-K two-dimensional filtering method can be applied simultaneously, improve by spy target echo signal signal to noise ratio (S/N ratio), effectively eliminate the noise signal from other direction.Advantage that wireless distributed Tunnel prediction sniffer has that structure simplifies, energy consumption is less, production cost is low etc., Tunnel prediction detection system and method have arrange simple, detection accuracy is high, measure efficiency advantages of higher.
The technical solution used in the present invention is as follows:
The invention provides a kind of wireless distributed Tunnel prediction sniffer, comprise control operation terminal, wireless data acquisition device, seismic reflection wave receiving device and seismic event excitation apparatus; The output terminal of described seismic event excitation apparatus is connected with the input end of described wireless data acquisition device respectively with the output terminal of described seismic reflection wave receiving device; The output terminal of described wireless data acquisition device is connected with the input end of described control operation terminal.
Preferably, described wireless data acquisition device comprises collection sub-device, communicator and supplying cell; The sub-device of described collection is connected with the input end of described communicator respectively with described supplying cell; The output terminal of described communicator is connected to described control operation terminal.
Preferably, described communicator is 802.11wi-fi communicator; And/or
The sub-device of described collection comprises Signal reception passage, signal conditioning circuit, signal amplification circuit and A/D change-over circuit; The input end of described Signal reception passage is connected with the output terminal of described seismic reflection wave receiving device and the output terminal of described seismic event excitation apparatus respectively, is connected after the output terminal of described Signal reception passage sequentially passes through described signal conditioning circuit, described signal amplification circuit with the input end of described A/D change-over circuit; The output terminal of described A/D change-over circuit is connected with the input end of described communicator.
Preferably, described seismic reflection wave receiving device is three-component seismometer;
The sub-device of described collection comprises 4 described Signal reception passages: the first Signal reception passage, secondary signal receiving cable, the 3rd Signal reception passage and the 4th Signal reception passage; The input end of described first Signal reception passage is connected with described seismic event excitation apparatus; Described secondary signal receiving cable, described 3rd Signal reception passage and described 4th Signal reception passage are connected with the X component output terminal of described three-component seismometer, Y-component output terminal and Z component output terminal respectively.
Preferably, described seismic event excitation apparatus is hammer.
The present invention also provides a kind of wireless distributed Tunnel prediction detection system applying above-mentioned wireless distributed Tunnel prediction sniffer, comprises described control operation terminal, described seismic event excitation apparatus, the above wireless data acquisition device and the above seismic reflection wave receiving device; Described wireless data acquisition device and described seismic reflection wave receiving device are arranged in pairs; The output terminal of described seismic reflection wave receiving device connects with the input end of corresponding described wireless data acquisition device; The output terminal of described seismic event excitation apparatus is connected with the input end of each described wireless data acquisition device; The output terminal of each described wireless data acquisition device is connected respectively to the input end of described control operation terminal.
Preferably, the quantity of described wireless data acquisition device is three, comprises the first wireless data acquisition device, the second wireless data acquisition device and the 3rd wireless data acquisition device; The quantity of described seismic reflection wave receiving device is three, comprises the first seismic reflection wave receiving device, the second seismic reflection wave receiving device and the 3rd seismic reflection wave receiving device; Described first wireless data acquisition device is connected with described first seismic reflection wave receiving device; Described second wireless data acquisition device is connected with described second seismic reflection wave receiving device; Described 3rd wireless data acquisition device is connected with described 3rd seismic reflection wave receiving device;
The cross section, same tunnel being positioned at the tunneling at face rear arranges the first installation site, the second installation site and the 3rd installation site; Described first installation site is positioned at the left side wall in cross section, described tunnel; Described second installation site is positioned at the right side wall in cross section, described tunnel; Described 3rd installation site is positioned at the roof in cross section, described tunnel; Described first seismic reflection wave receiving device is arranged on described first installation site; Described second seismic reflection wave receiving device is arranged on described second installation site; Described 3rd seismic reflection wave receiving device is arranged on described 3rd installation site.
Preferably, described first wireless data acquisition device is arranged on the left side wall in the cross section, described tunnel apart from described first installation site setpoint distance; Described second wireless data acquisition device is arranged on the right side wall in the cross section, described tunnel apart from described second installation site setpoint distance; Described 3rd wireless data acquisition device is arranged on the roof in the cross section, described tunnel apart from described 3rd installation site setpoint distance.
Preferably, the vertical range of described first distance bottom surface, tunnel, installation site is 1 meter; The vertical range of described second distance bottom surface, tunnel, installation site is 1 meter; Described 3rd installation site is positioned at tunnel vertex position; And/or
Cross section, described tunnel is positioned at, 35 meters, described face rear; And/or
Also comprise the first group of focus gauge point and second group of focus gauge point that are made up of multiple focus gauge point; Described first group of focus gauge point is arranged on described left side wall and is positioned at same level height with described first installation site; Described second group of focus gauge point is arranged on described right side wall and is positioned at same level height with described second installation site.
The present invention also provides a kind of wireless distributed Tunnel prediction detection method applying above-mentioned wireless distributed Tunnel prediction detection system, comprises the following steps:
S1, uses described seismic event excitation apparatus focus gauge point earthquake-wave-exciting described in each respectively; Meanwhile, each the described wireless data acquisition device time synchronisation being arranged on cross section, same tunnel is triggered;
The seismic event that S2, S1 excite is divided into two-way, and first via seismic event is directly gathered by each described wireless data acquisition device, then after described wireless data acquisition device process, sends to described control operation terminal; Second road seismic event produces echo after described face and the reflection of front wave impedance interface thereof; Described echo sends to described wireless data acquisition device after the collection of each described seismic reflection wave receiving device; Described echo is sent to described control operation terminal by described wireless data acquisition device again;
S3, the described first via seismic event that described control operation end-on receives and described echo process, the geological condition in front, advanced prediction tunnel front.
Beneficial effect of the present invention is as follows:
The invention provides a kind of wireless distributed Tunnel prediction sniffer, system and method, adopt wireless distributed instrument (24 A/D) and hammering focus working method, fast and easy can collect high-precision signal, and can ensure that work safety is carried out; Adopt receive both sides hammering recording geometry test mode at 3, effectively can obtain three dimensions elastic wave field data, carry out high-precision three-dimensional imaging, F-K two-dimensional filtering method can be applied simultaneously, improve by spy target echo signal signal to noise ratio (S/N ratio), effectively eliminate the noise signal from other direction.Advantage that wireless distributed Tunnel prediction sniffer has that structure simplifies, energy consumption is less, production cost is low etc., Tunnel prediction detection system and method have arrange simple, detection accuracy is high, measure efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1 is the principle schematic of wireless distributed Tunnel prediction detection system provided by the invention;
Fig. 2 is the layout schematic diagram of wireless distributed Tunnel prediction detection system provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 1-2, the invention provides a kind of wireless distributed Tunnel prediction sniffer, comprise control operation terminal, wireless data acquisition device, seismic reflection wave receiving device and seismic event excitation apparatus; The output terminal of seismic event excitation apparatus is connected with the input end of wireless data acquisition device respectively with the output terminal of seismic reflection wave receiving device; The output terminal of wireless data acquisition device is connected with the input end of control operation terminal.
Introduce control operation terminal, wireless data acquisition device, seismic reflection wave receiving device and seismic event excitation apparatus below respectively:
(1) control operation terminal
Control operation terminal comprises notebook computer or panel computer, and wherein, curtain resolution is the dominant frequency of more than 1024*768, CPU is frequently more than 2GHz, more than internal memory 1G.Be mainly used in reception, preserve, process seismic signal data.
(2) wireless data acquisition device
Wireless data acquisition device comprises collection sub-device, communicator and supplying cell; Gather sub-device to be connected with the input end of communicator respectively with supplying cell; The output terminal of communicator is connected to control operation terminal.In practical application, communicator can be 802.11wi-fi communicator.Wireless data acquisition device is mainly used in receiving seismic signal data and earthquake reflected wave signal data, and the signal data received is uploaded to control operation terminal.
Gather sub-device and comprise Signal reception passage, signal conditioning circuit, signal amplification circuit and A/D change-over circuit; The input end of Signal reception passage is connected with the output terminal of seismic reflection wave receiving device and the output terminal of seismic event excitation apparatus respectively, is connected after the output terminal of Signal reception passage sequentially passes through signal conditioning circuit, signal amplification circuit with the input end of A/D change-over circuit; The output terminal of A/D change-over circuit is connected with the input end of communicator.Wherein, A/D change-over circuit preferably adopts 24 A/D change-over circuits, thus improves acquisition precision.
For same tunneling, in cross section, same tunnel, multiple wireless data acquisition device can be installed, thus improve the accuracy of data acquisition.The specific embodiment of a kind of installation three wireless data acquisition devices is introduced in rear extended meeting.
(3) seismic reflection wave receiving device
Seismic reflection wave receiving device can be wave detector.For improving signals collecting precision, seismic reflection wave receiving device adopts three-component seismometer, comprises X component output terminal, Y-component output terminal and Z component output terminal.Corresponding, for realizing the connection gathering sub-device and three-component seismometer, gathering sub-device and comprising 4 Signal reception passages: the first Signal reception passage, secondary signal receiving cable, the 3rd Signal reception passage and the 4th Signal reception passage; Wherein, the input end of the first Signal reception passage is connected with seismic event excitation apparatus; Secondary signal receiving cable, the 3rd Signal reception passage and the 4th Signal reception passage are connected with the X component output terminal of three-component seismometer, Y-component output terminal and Z component output terminal respectively.By this kind of connected mode, the first Signal reception passage directly receives the seismic signal produced by seismic event excitation apparatus; The seismic reflection ripple signal that secondary signal receiving cable, the 3rd Signal reception passage and the 4th Signal reception channel reception are detected by three-component seismometer.
(4) seismic event excitation apparatus
Seismic event excitation apparatus for generation of seismic event, such as: hammer.By using hammer multiple spot to knock tunnel-side, namely create seismic event.Simultaneously in tup one end fixed pickup of hammer.
Apply above-mentioned wireless distributed Tunnel prediction sniffer, the present invention also provides a kind of wireless distributed Tunnel prediction detection system, comprises control operation terminal, seismic event excitation apparatus, more than one wireless data acquisition device and more than one seismic reflection wave receiving device; Wireless data acquisition device and seismic reflection wave receiving device are arranged in pairs, that is: a wireless data acquisition device uniquely connects an earthquake reflected wave receiving trap; The output terminal of seismic reflection wave receiving device connects with the input end of corresponding wireless data acquisition device; The output terminal of seismic event excitation apparatus is connected with the input end of each wireless data acquisition device; The output terminal of each wireless data acquisition device is connected respectively to the input end of control operation terminal.
Introduce the embodiment of a kind of employing three wireless data acquisition devices below:
As shown in Figure 2, three wireless data acquisition devices, comprise the first wireless data acquisition device, the second wireless data acquisition device and the 3rd wireless data acquisition device; Seismic reflection wave receiving device also arranges three accordingly, comprises the first seismic reflection wave receiving device, the second seismic reflection wave receiving device and the 3rd seismic reflection wave receiving device; Wherein, the first wireless data acquisition device is connected with the first seismic reflection wave receiving device; Second wireless data acquisition device is connected with the second seismic reflection wave receiving device; 3rd wireless data acquisition device is connected with the 3rd seismic reflection wave receiving device.
The cross section, same tunnel 2 being positioned at the tunneling at face 1 rear arranges the first installation site 4, installation site 3, second and the 3rd installation site 5; First installation site is positioned at the left side wall in cross section, tunnel, and the vertical range of distance bottom surface, tunnel is preferably 1 meter; Second installation site is positioned at the right side wall in cross section, tunnel, and the vertical range of distance bottom surface, tunnel is preferably 1 meter; 3rd installation site is positioned at the roof in cross section, tunnel; Further, this cross section, tunnel is preferably placed at, 35 meters, face rear.
First seismic reflection wave receiving device is arranged on the first installation site; Second seismic reflection wave receiving device is arranged on the second installation site; 3rd seismic reflection wave receiving device is arranged on the 3rd installation site.Further, the first wireless data acquisition device is arranged on the left side wall in the cross section, tunnel apart from the first installation site setpoint distance, is called the first wireless data acquisition device settlement 6; Second wireless data acquisition device is arranged on the right side wall in the cross section, described tunnel apart from the second installation site setpoint distance, is called the second wireless data acquisition device settlement 7; 3rd wireless data acquisition device is arranged on the roof in the cross section, tunnel apart from the 3rd installation site setpoint distance, is called the 3rd wireless data acquisition device settlement 8.Wherein, setpoint distance can be 1 centimetre, and seismic reflection wave receiving device gets close to wireless data acquisition device application setscrew and is fixed in tunnel-side.
When earthquake reflected wave receiving trap is three-component seismometer, be connected with seismic event excitation apparatus after first Signal reception Tandem of three wireless data acquisition devices, serial connection is fixed on the left side wall in cross section, tunnel, right side wall and top at equal intervals respectively, forms signal acquiring system.At tunnel one sidewall earthquake-wave-exciting, three synchronous triggering timing of wireless data acquisition device can be made, by the trigger pip be recorded to, when can walk signal, carry out accurate correction.For with a hammering, adopt three wireless data acquisition devices to receive seismic event information and seismic event echoed signal, effectively can obtain three dimensions elastic wave field data, improve three-dimensional imaging precision.
Between cross section, tunnel and face, the first group of focus gauge point and second group of focus gauge point that are made up of multiple focus gauge point 9 can be set; First group of focus gauge point is arranged on left side wall and is positioned at same level with the first installation site; Second group of focus gauge point is arranged on right side wall and is positioned at same level with the second installation site.
The distributed Tunnel prediction detection system of employing wireless, wireless distributed Tunnel prediction detection method provided by the invention, comprises the following steps:
S1, uses seismic event excitation apparatus respectively at each focus gauge point earthquake-wave-exciting;
The seismic event that S2, S1 excite is divided into two-way, and first via seismic event is directly gathered by wireless data acquisition device, then after wireless data acquisition device process, sends to control operation terminal; Second road seismic event produces echo after face and the reflection of front wave impedance interface thereof; Echo sends to wireless data acquisition device after the collection of seismic reflection wave receiving device; Echo is sent to control operation terminal by wireless data acquisition device again;
S3, the first via seismic event that control operation end-on receives and echo process, the geological condition in front, advanced prediction tunnel front.
As a kind of specific implementation, in the tunnel of excavation, first three-dimensional coordinate direction is determined: the excavation direction in tunnel is X-coordinate, the longitudinal direction of face is y coordinate, the transverse direction of face is Z coordinate, the point of left side wall bottom surface distance 35 meters, the face in setting tunnel excavation direction is coordinate at zero point (0,0,0); Next chooses focus gauge point, respectively in the position that distance 1 meter, ground, two side, left and right, tunnel is high.Wherein the origin coordinates of left wall is respectively (0,1,0) and (35 with termination coordinate, 1,0), the origin coordinates of right wall is respectively (0,1 with termination coordinate, and (35 Z), 1, Z), Z coordinate is determined according to the lateral length of face, wherein first focus gauge point distance starting X-coordinate 5 meters of, 15 remaining focus gauge points are with the equidistant mark of 2 meters; Then; choose wave detector settlement and install wave detector and wireless data acquisition device, left wall is starting point coordinate (0,1; 0) place; right wall is also starting point coordinate place, top indicator point coordinate (0, Y; Z/2); wave detector has been installed in a protective case before the use, only needs containment vessel setscrew to be fixed on gauge point, nearby settles and open wireless data collector with buckle setscrew simultaneously.Finally open control operation terminal, open radio communication device drive software, activate communicator, open acquisition software, click and gather button, after hammering, countless data collector gathers seismic signal automatically.
Wireless distributed Tunnel prediction sniffer provided by the invention, system and method, adopt wireless distributed instrument (24 A/D) and hammering focus working method, fast and easy can collect high-precision signal, and can ensure that work safety is carried out; Adopt receive both sides hammering recording geometry test mode at 3, effectively can obtain three dimensions elastic wave field data, carry out high-precision three-dimensional imaging, F-K two-dimensional filtering method can be applied simultaneously, improve by spy target echo signal signal to noise ratio (S/N ratio), effectively eliminate the noise signal from other direction.Advantage that wireless distributed Tunnel prediction sniffer has that structure simplifies, energy consumption is less, production cost is low etc., Tunnel prediction detection system and method have arrange simple, detection accuracy is high, measure efficiency advantages of higher.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (6)
1. the wireless distributed Tunnel prediction detection system of an employing wireless distributed Tunnel prediction sniffer, it is characterized in that, wireless distributed Tunnel prediction sniffer comprises control operation terminal, wireless data acquisition device, seismic reflection wave receiving device and seismic event excitation apparatus; The output terminal of described seismic event excitation apparatus is connected with the input end of described wireless data acquisition device respectively with the output terminal of described seismic reflection wave receiving device; The output terminal of described wireless data acquisition device is connected with the input end of described control operation terminal;
Wireless distributed Tunnel prediction detection system comprises described control operation terminal, described seismic event excitation apparatus, the above wireless data acquisition device and the above seismic reflection wave receiving device; Described wireless data acquisition device and described seismic reflection wave receiving device are arranged in pairs; The output terminal of described seismic reflection wave receiving device connects with the input end of corresponding described wireless data acquisition device; The output terminal of described seismic event excitation apparatus is connected with the input end of each described wireless data acquisition device; The output terminal of each described wireless data acquisition device is connected respectively to the input end of described control operation terminal;
Wherein, the quantity of described wireless data acquisition device is three, comprises the first wireless data acquisition device, the second wireless data acquisition device and the 3rd wireless data acquisition device; The quantity of described seismic reflection wave receiving device is three, comprises the first seismic reflection wave receiving device, the second seismic reflection wave receiving device and the 3rd seismic reflection wave receiving device; Described first wireless data acquisition device is connected with described first seismic reflection wave receiving device; Described second wireless data acquisition device is connected with described second seismic reflection wave receiving device; Described 3rd wireless data acquisition device is connected with described 3rd seismic reflection wave receiving device;
The cross section, same tunnel being positioned at the tunneling at face rear arranges the first installation site, the second installation site and the 3rd installation site; Described first installation site is positioned at the left side wall in cross section, described tunnel; Described second installation site is positioned at the right side wall in cross section, described tunnel; Described 3rd installation site is positioned at the roof in cross section, described tunnel; Described first seismic reflection wave receiving device is arranged on described first installation site; Described second seismic reflection wave receiving device is arranged on described second installation site; Described 3rd seismic reflection wave receiving device is arranged on described 3rd installation site;
Wherein, described first wireless data acquisition device is arranged on the left side wall in the cross section, described tunnel apart from described first installation site setpoint distance; Described second wireless data acquisition device is arranged on the right side wall in the cross section, described tunnel apart from described second installation site setpoint distance; Described 3rd wireless data acquisition device is arranged on the roof in the cross section, described tunnel apart from described 3rd installation site setpoint distance;
Wherein, the vertical range of described first distance bottom surface, tunnel, installation site is 1 meter; The vertical range of described second distance bottom surface, tunnel, installation site is 1 meter; Described 3rd installation site is positioned at tunnel vertex position; And/or
Cross section, described tunnel is positioned at, 35 meters, described face rear; And/or
Also comprise the first group of focus gauge point and second group of focus gauge point that are made up of multiple focus gauge point; Described first group of focus gauge point is arranged on described left side wall and is positioned at same level height with described first installation site; Described second group of focus gauge point is arranged on described right side wall and is positioned at same level height with described second installation site.
2. wireless distributed Tunnel prediction detection system according to claim 1, is characterized in that, wireless distributed Tunnel prediction sniffer comprises collection sub-device, communicator and supplying cell; The sub-device of described collection is connected with the input end of described communicator respectively with described supplying cell; The output terminal of described communicator is connected to described control operation terminal.
3. wireless distributed Tunnel prediction detection system according to claim 2, is characterized in that, described communicator is 802.11wi-fi communicator; And/or
The sub-device of described collection comprises Signal reception passage, signal conditioning circuit, signal amplification circuit and A/D change-over circuit; The input end of described Signal reception passage is connected with the output terminal of described seismic reflection wave receiving device and the output terminal of described seismic event excitation apparatus respectively, is connected after the output terminal of described Signal reception passage sequentially passes through described signal conditioning circuit, described signal amplification circuit with the input end of described A/D change-over circuit; The output terminal of described A/D change-over circuit is connected with the input end of described communicator.
4. wireless distributed Tunnel prediction detection system according to claim 3, is characterized in that, described seismic reflection wave receiving device is three-component seismometer;
The sub-device of described collection comprises 4 described Signal reception passages: the first Signal reception passage, secondary signal receiving cable, the 3rd Signal reception passage and the 4th Signal reception passage; The input end of described first Signal reception passage is connected with described seismic event excitation apparatus; Described secondary signal receiving cable, described 3rd Signal reception passage and described 4th Signal reception passage are connected with the X component output terminal of described three-component seismometer, Y-component output terminal and Z component output terminal respectively.
5. wireless distributed Tunnel prediction detection system according to claim 4, is characterized in that, described seismic event excitation apparatus is hammer.
6. application rights requires a wireless distributed Tunnel prediction detection method for 1 wireless distributed Tunnel prediction detection system, it is characterized in that, comprises the following steps:
S1, uses described seismic event excitation apparatus focus gauge point earthquake-wave-exciting described in each respectively; Meanwhile, each the described wireless data acquisition device time synchronisation being arranged on cross section, same tunnel is triggered;
The seismic event that S2, S1 excite is divided into two-way, and first via seismic event is directly gathered by each described wireless data acquisition device, then after described wireless data acquisition device process, sends to described control operation terminal; Second road seismic event produces echo after described face and the reflection of front wave impedance interface thereof; Described echo sends to described wireless data acquisition device after the collection of each described seismic reflection wave receiving device; Described echo is sent to described control operation terminal by described wireless data acquisition device again;
S3, the described first via seismic event that described control operation end-on receives and described echo process, the geological condition in front, advanced prediction tunnel front.
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| CN104181581B (en) * | 2014-08-26 | 2017-05-10 | 北京市市政工程研究院 | Earthquake wave underground construction space observation system and method based on random arrangement |
| CN104749636A (en) * | 2015-04-09 | 2015-07-01 | 北京中矿大地地球探测工程技术有限公司 | Distributed slot wave seismic prospecting system and prospecting method thereof |
| CN107346032A (en) * | 2017-06-21 | 2017-11-14 | 湖北省交通规划设计院股份有限公司 | A kind of wireless controlled passes the Tunnel prediction system and method for acceleration transducer |
| CN108732612A (en) * | 2018-04-10 | 2018-11-02 | 云南航天工程物探检测股份有限公司 | A kind of Preceding geology predictor and method based on tunnel excavation blast signal |
| CN108761524B (en) * | 2018-05-21 | 2019-03-26 | 山东大学 | A kind of portable tunnel seismic wave forward probe system and method |
| CN110174695A (en) * | 2019-06-13 | 2019-08-27 | 成都畅达通检测技术股份有限公司 | A kind of Geological Advanced Prediction detection system and detection method for constructing tunnel |
| CN111501857A (en) * | 2020-04-08 | 2020-08-07 | 上海交通大学 | Time-space monitoring method and system for foundation construction state of immersed tunnel |
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Effective date of registration: 20211118 Address after: 650217 9 / F, block B, No.89, Shuntong Avenue, Kunming Economic Development Zone, China (Yunnan) pilot Free Trade Zone, Kunming City, Yunnan Province Patentee after: YUNNAN AEROSPACE ENGINEERING GEOPHYSICAL SURVEY INSPECTION Co.,Ltd. Address before: 650217 B33, science and Technology Innovation Park, Kunming Economic and Technological Development Zone, Yunnan Province Patentee before: YUNNAN AEROSPACE ENGINEERING GEOPHYSICAL SURVEY INSPECTION Co.,Ltd. Patentee before: Wang Yunsheng |