CN202083802U - Tunnel top board two-dimension seismic prospecting system - Google Patents
Tunnel top board two-dimension seismic prospecting system Download PDFInfo
- Publication number
- CN202083802U CN202083802U CN 201120170228 CN201120170228U CN202083802U CN 202083802 U CN202083802 U CN 202083802U CN 201120170228 CN201120170228 CN 201120170228 CN 201120170228 U CN201120170228 U CN 201120170228U CN 202083802 U CN202083802 U CN 202083802U
- Authority
- CN
- China
- Prior art keywords
- wave detector
- dimension
- seismic
- earthquake
- source apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
Disclosed is a tunnel top board two-dimension seismic prospecting system, comprising an epicentre apparatus, a detector, and an earthquake recording apparatus, wherein the output end of the detector is connected with the input end of the earthquake recording apparatus and the epicentre apparatus is connected with the input end of the earthquake recording apparatus. The tunnel top board two-dimension seismic prospecting system activates seismic wave signals inside the tunnel top board via the epicentre apparatus and receives the seismic wave signals via the detector and the earthquake recording apparatus. The capability for judging small construction can be improved by conducting shallow-layer two-dimension earthquake exploration in the tunnel, so the accurate and reliable geology analysis interpretation document can be obtained, which can provide accurate and reliable geology data for coal mine exploitation work, reduce potential risks and improve security amid exploring process.
Description
Technical field
The utility model relates to geophysical exploration technology, especially relates to a kind of back two-dimension earthquake exploration system.
Background technology
At present, in the recovery process in coal seam, especially in the projecting coal bed recovery process, workplace takes " one side four lanes " to arrange usually, workplace just, four tunnels, before crossheading on the workplace (return airway) and following crossheading (transportation lane) construction, the position construction top board height that hangs down high about 20 meters on the top of workplace is in advance taken out the lane, at the bottom of the position of about 20 meters of the bottom of workplace Chui Gao construction base plate, take out the lane, the top board height is taken out and is taken out the lane at the bottom of lane and the base plate and be used for workplace space methane gas is carried out extraction, guarantees that the coal mining work safety carries out.
Along with the coal mining degree of depth constantly increases, the exploitation geologic condition becomes and becomes increasingly complex, and various exploration geology data are less relatively, and therefore the prediction ability to the seam mining process reduces, because lacking the survey data of science is the production job service, thereby causes the coal mining work accident easily.
The existing two-dimensional method of seismic prospecting is a face of land two-dimension earthquake method of exploration, concrete grammar is, by manually at face of land earthquake-wave-exciting, seismic event reflects when propagating in rock stratum and coal seam, gather seismic data then on the face of land, obtain the two-dimension earthquake section of space exploration, obtain zone of interest position feature and other geologic condition by analysis interpretation to the two-dimension earthquake section.
But, because when seismic event is propagated in underground medium, partly the energy of seismic wave is absorbed and scatters and disappears, outstanding behaviours decays along with the increase of propagation distance at the radio-frequency component of seismic event, therefore, the seismic data that adopts face of land two-dimension earthquake method of exploration to gather, data volume is less and the seismic wave propagation condition is very complicated, the data of finally obtaining are low to little structure judgement, can not instruct the seam mining operation effectively.
The utility model content
The utility model embodiment provides a kind of back two-dimension earthquake exploration system, in order to solve defective of the prior art, utilize the lane space condition, can improve judgement to little structure, for coal mining work provides geologic information data effectively reliably, reduce the potential danger in the recovery process, the security that has improved mining operations.
The back two-dimension earthquake exploration system that the utility model provides, comprise seismic source apparatus, wave detector and seismologic record device, described wave detector output terminal is connected with the input end of described seismologic record device, and described seismic source apparatus is connected with the input end of described seismologic record device.
Preferably, the quantity of described wave detector is 4-8, and the spacing of described wave detector is a 1-2 rice, and the distance of described seismic source apparatus and described wave detector is a 5-20 rice.
Preferably, described seismic source apparatus comprises tup, hammer body and hammer stem, and described tup is fixedlyed connected with described hammer body, and described hammer body is fixedlyed connected with described hammer stem.
Preferably, the material of described tup is a copper.
Preferably, described tup is flat-tope structure or pinnacle structure.
Preferably, described wave detector comprises pointed cone head and guide rod, and the wide end of described pointed cone head is fixedlyed connected with an end of described guide rod.
Preferably, described wave detector comprises pointed cone head, carriage and guide rod, and an end of described carriage is fixedlyed connected with the wide end of described pointed cone head, and the other end of described carriage is fixedlyed connected with an end of described guide rod.
The back two-dimension earthquake exploration system that the utility model provides, by seismic source apparatus earthquake-wave-exciting signal in back, accept seismic signal by wave detector and seismograph, in the tunnel, implement the exploration of shallow-layer two-dimension earthquake, can improve judgement to little structure, thereby can obtain geological analysis interpretation data accurately and reliably, for coal mining work provides geologic information data accurately and reliably, reduce the potential danger in the recovery process, the security that has improved mining operations.
Description of drawings
The process flow diagram of the top board two-dimension earthquake method of exploration that Fig. 1 the utility model first embodiment provides;
The synoptic diagram of the back two-dimension earthquake exploration system that Fig. 2 provides for the utility model second embodiment;
The structural representation of the seismic source apparatus that Fig. 3 provides for the utility model the 3rd embodiment;
The structural representation of the wave detector that Fig. 4 provides for the utility model the 4th embodiment;
The structural representation of the wave detector that Fig. 5 provides for the utility model the 5th embodiment.
Reference numeral:
1-seismic source apparatus 11-tup 12-hammer body
13-hammer stem 2-wave detector 21-pointed cone head
22-carriage 23-guide rod 3-seismologic record device
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model also provides a kind of back two-dimension earthquake exploration system, comprise seismic source apparatus, wave detector and seismologic record device, described wave detector output terminal is connected with the input end of described seismologic record device, and described seismic source apparatus is connected with the input end of described seismologic record device.
The back two-dimension earthquake exploration system that the utility model provides can obtain the seismic event of upper frequency, the geological analysis interpretation data that obtains is more effectively reliable, can improve judgement to little structure, for coal mining work provides geologic information data accurately and reliably, reduce the potential danger in the recovery process, the security that has improved mining operations.The utility model is described in further detail below in conjunction with drawings and Examples.
With reference to figure 1, the process flow diagram of the top board two-dimension earthquake method of exploration that Fig. 1 the utility model first embodiment provides.
In first embodiment of the present utility model, back two-dimension earthquake method of exploration comprises:
Steps A: seismic data collection; Focus sends seismic signal, repeatedly covers recording geometry and receives seismic signal.
Concrete, earthquake data acquisition comprises: repeatedly cover recording geometry at back and lateral wall layout, obtain and repeatedly cover the recording geometry data.
Wherein, arrange that many surveys line recording geometry is specially selection tunnel top group and two lateral walls are arranged 4-8 wave detector, receive seismic signal, the arrangement pitch of wave detector is a 1-2 rice, and the arrangement pitch of focus and wave detector is a 5-20 rice.
Step B: seismic data is handled; Obtain efficient 2-d seismic section in the back 15-50 rice.
Concrete, geological data is handled and is comprised: repeatedly cover observation and receive seismic signal, implement tunnel treatment for correcting, data pre-service, skew overlap-add procedure and time frequency analysis and handle, obtain effective back rock coal seam seismic section and frequency spectrum section.
Wherein, it is poor that the tunnel treatment for correcting is specially according to height of tunnel, when arriving by the through seismic event of channel correction, obtains the continuous variation of follow-up coal rock layer reflection wave groups phase place.
Wherein, the skew overlap-add procedure is specially by velocity of wave logging trace in back rockhole core and the hole carries out the seismologic record match, demarcates the superjacent reflection wave time of back, obtains the stack time section.
Step C: tectonic structure analysis interpretation; Analysis interpretation back superjacent is composed and is deposited and the tectonic structure situation;
The tectonic structure analysis interpretation comprises texture of coal seam, structural attitude analysis interpretation and the explanation of coal seam distance analysis.
Concrete, the texture of coal seam signature analysis is interpreted as selecting complex wave group continuity and changing features reaction texture of coal seam feature.
The coal seam distance analysis is specially in conjunction with surveying the selected seismic velocity synthetically of rock stratum lithology and back boring velocity of wave well-log information, calculates the coal seam distance according to time section of earthquake.Further, seimic wave velocity is 2.0-4.5m/ms.
The back two-dimension earthquake method of exploration that first embodiment of the present utility model provides repeatedly covers the recording geometry data by arranging many surveys line recording geometry at back and lateral wall, obtaining; Repeatedly cover the recording geometry data and implement tunnel treatment for correcting, data pre-service, skew overlap-add procedure and time frequency analysis processing, obtain effective tunnel seismic section and frequency spectrum section; And by selecting complex wave stack features reaction texture of coal seam structural attitude, in conjunction with surveying the selected comprehensive wave speed of the earthquake of rock stratum lithology and back boring velocity of wave well-log information.
In the tunnel, implement the exploration of shallow-layer two-dimension earthquake owing to adopt said method, can obtain the seismic event of upper frequency, can improve judgement to little structure, obtain geological analysis interpretation data effectively reliably, thereby can provide geologic information data accurately and reliably for coal mining work, reduce the potential danger in the recovery process, the security that has improved mining operations.
With reference to figure 2, the synoptic diagram of the back two-dimension earthquake exploration system that Fig. 2 provides for the utility model second embodiment.
In the present embodiment, back two-dimension earthquake exploration system comprises seismic source apparatus 1, wave detector 2 and seismologic record device 3, and wave detector 2 output terminals are connected with the input end of seismologic record device 3, and seismic source apparatus 1 is connected with the input end of seismologic record device 3.
Concrete, in the present embodiment, seismic source apparatus 1 is for can adopt hammer, by hammer hammering back earthquake-wave-exciting.
The quantity of wave detector 2 is 4-8, the distance between each wave detector 2, and just track pitch L is a 1-2 rice, the distance between seismic source apparatus 1 and the wave detector 2, just offset distance O is a 5-20 rice.
Be example in the unidirectional spread mode below, the course of work of the back two-dimension earthquake exploration system that the specific descriptions present embodiment provides:
The distance of wave detector 2 with track pitch L is spaced, and the top of wave detector 2 contacts with back, uses seismic source apparatus 1 hammering back in a side of wave detector 2, and seismic source apparatus 1 is offset distance O with the distance of nearest wave detector 2.
Seismic source apparatus 1 hammering back, send seismic signal, seismic signal is accepted seismic signal by wave detector 2 after the rock coal seam on top board top is reflected, the seismic signal that wave detector 2 receives sends seismologic record device 3 to, and seismic signal is noted.
The scene needs the several people to cooperate simultaneously to carry out, finish a measuring point after, mobile in turn tunnel two-dimension earthquake exploration system carries out the exploration of next exploration point, until the exploration of finishing whole tunnel.
Need to prove, when back crushing rock formation or supporting condition difference, need to select the hammer point of reasonable seismic source apparatus 1 and the acceptance point of wave detector 2.Also need change the pointed cone of wave detector 2 in case of necessity, make the pointed cone of wave detector 2 can touch the complete rock stratum of top board.
The back two-dimension earthquake exploration system that present embodiment provides, by seismic source apparatus 1 earthquake-wave-exciting signal in back, accept seismic signal by wave detector 2 and seismologic record device 3, in the tunnel, implement the exploration of shallow-layer two-dimension earthquake, can improve judgement to little structure, thereby can obtain geological analysis interpretation data accurately and reliably, for coal mining work provides geologic information data accurately and reliably, reduce the potential danger in the recovery process, the security that has improved mining operations.
With reference to figure 3, the structural representation of the seismic source apparatus that Fig. 3 provides for the utility model the 3rd embodiment.
In the present embodiment, seismic source apparatus 1 comprises tup 11, hammer body 12 and hammer stem 13, and tup 11 is fixedlyed connected with hammer body 12, and hammer body 12 is fixedlyed connected with hammer stem 13.The material selection copper material of tup 11, the excitation security that can improve seismic source apparatus 1.
In addition, in the present embodiment, tup 11 is flat-tope structure or pinnacle structure, to adapt to the different support pattern of back.Can also be according to the difference of the structural strength of the difference of the support pattern of back and back, select the seismic source apparatus 1 of Different Weight, the weight of seismic source apparatus 1 can be the 0.5-3 kilogram, the length of hammer stem 13 can be selected according to height of tunnel, be specifically as follows 1-3m, to adapt to height of tunnel, make things convenient for hammering back earthquake-wave-exciting.
With reference to figure 4, the structural representation of the wave detector that Fig. 4 provides for the utility model the 4th embodiment.
In the present embodiment, wave detector 2 has velocity profile simple component and horizontal component, and dominant frequency is 60-100HHz.Wave detector 2 comprises pointed cone head 21 and guide rod 23, and the wide end of pointed cone head 21 is fixedlyed connected with an end of guide rod 23.
With reference to figure 5, the structural representation of the wave detector that Fig. 5 provides for the utility model the 5th embodiment.
In the present embodiment, wave detector 2 has velocity profile simple component and horizontal component, and dominant frequency is 60-100HHz.Wave detector 2 comprises pointed cone head 21, carriage 22 and guide rod 23.
One end of carriage 22 is fixedlyed connected with the wide end of pointed cone head 21, and the other end of carriage 22 is fixedlyed connected with an end of guide rod 23.Particularly, carriage 22 is rectangular slab structure or other similar structures, and 22 pairs of wave detectors 2 of carriage have fixing and supporting role.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (7)
1. back two-dimension earthquake exploration system, it is characterized in that, comprise seismic source apparatus, wave detector and seismologic record device, described wave detector output terminal is connected with the input end of described seismologic record device, and described seismic source apparatus is connected with the input end of described seismologic record device.
2. back two-dimension earthquake exploration system according to claim 1 is characterized in that, the quantity of described wave detector is 4-8, and the spacing of described wave detector is a 1-2 rice, and the distance of described seismic source apparatus and described wave detector is a 5-20 rice.
3. back two-dimension earthquake exploration system according to claim 1 and 2 is characterized in that described seismic source apparatus comprises tup, hammer body and hammer stem, and described tup is fixedlyed connected with described hammer body, and described hammer body is fixedlyed connected with described hammer stem.
4. back two-dimension earthquake exploration system according to claim 3 is characterized in that the material of described tup is a copper.
5. back two-dimension earthquake exploration system according to claim 3 is characterized in that, described tup is flat-tope structure or pinnacle structure.
6. back two-dimension earthquake exploration system according to claim 1 and 2 is characterized in that described wave detector comprises pointed cone head and guide rod, and the wide end of described pointed cone head is fixedlyed connected with an end of described guide rod.
7. back two-dimension earthquake exploration system according to claim 1 and 2, it is characterized in that, described wave detector comprises pointed cone head, carriage and guide rod, and an end of described carriage is fixedlyed connected with the wide end of described pointed cone head, and the other end of described carriage is fixedlyed connected with an end of described guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120170228 CN202083802U (en) | 2011-05-25 | 2011-05-25 | Tunnel top board two-dimension seismic prospecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120170228 CN202083802U (en) | 2011-05-25 | 2011-05-25 | Tunnel top board two-dimension seismic prospecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083802U true CN202083802U (en) | 2011-12-21 |
Family
ID=45344426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120170228 Expired - Lifetime CN202083802U (en) | 2011-05-25 | 2011-05-25 | Tunnel top board two-dimension seismic prospecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202083802U (en) |
-
2011
- 2011-05-25 CN CN 201120170228 patent/CN202083802U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102788991B (en) | High-density rapid detection method based on z-component transmitting channel waves | |
| CN104166164B (en) | The many wave reflection 3-D seismics forward probe methods of coal roadway tunneling geological structure three-component | |
| CN107831530B (en) | High seam reflects slot wave forward probe method along bottom plate or top plate coal driving | |
| Fletcher et al. | Near-surface velocities and attenuation at two boreholes near Anza, California, from logging data | |
| CN201993469U (en) | Advanced geology prediction system for tunnel construction | |
| CN102495434A (en) | Advanced geological prediction method for underground engineering | |
| CN105700010B (en) | Colliery joint earthquake holographic forecast method | |
| CN103235333A (en) | Coal roadway fault advanced-detection method based on reflecting channel wave signals | |
| CN103424769A (en) | Combined multi-wave seismic exploration method in gob | |
| CN104880729A (en) | Coal roadway anomalous structure advanced detection method based on continuous channel wave signal tracking | |
| CN202649483U (en) | Electric field constraint method mine security type full mechanized excavation machine carried geological structure detection system | |
| CN111948645A (en) | Coal mine roadway and tunnel drilling while drilling radar advanced detection device and method | |
| CN103176214B (en) | Electric field leash law coal peace type roadheader carries tectonic structure detection system and method thereof | |
| CN103217719A (en) | Method of advanced detection of breaking-loss wing coal seam of coal road based on single offset pair observation system | |
| CN102798884B (en) | Tunnel roof two-dimensional seismic exploration method and system | |
| CN103235334A (en) | Low drainage roadway fault-throw advanced-detection method based on seismic signals | |
| CN104199110A (en) | Method for channel wave earthquake stereoscopic advanced detection during underground coal mine support | |
| CN101950032A (en) | Multi-wave exciting method for near surface investigation | |
| CN203287537U (en) | Advance geological forecast system of railway tunnel based on negative visual velocity method | |
| Wang et al. | Supercritical CO2 source for underground seismic exploration | |
| CN105866836B (en) | Mine three-dimensional earthquake whole process geological prospecting Forecasting Methodology | |
| CN202083802U (en) | Tunnel top board two-dimension seismic prospecting system | |
| CN103472482A (en) | Multi-wave seismic data time domain matching method and system based on gene ordering system | |
| CN105607128A (en) | Geological fault detection method under hard and soft interbedded geological condition | |
| CN104375187B (en) | Method for designing cannon well depths based on microlog and non-seismic data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |