CN203441479U - Comprehensive borehole geological condition exploration device - Google Patents
Comprehensive borehole geological condition exploration device Download PDFInfo
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- CN203441479U CN203441479U CN201320330841.XU CN201320330841U CN203441479U CN 203441479 U CN203441479 U CN 203441479U CN 201320330841 U CN201320330841 U CN 201320330841U CN 203441479 U CN203441479 U CN 203441479U
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Abstract
The utility model relates to the geological exploration field and especially relates to a comprehensive borehole geological condition exploration device. The exploration device comprises an electronic speculum and a conveying rod. The electronic speculum is connected under the conveying rod and is connected with a portable computer via a cable. The tail end of the conveying rod is provided with an emission antenna array, and the central end of the conveying rod is equipped with multichannel receivers. Two ends of each of radar echo cables are connected with one corresponding multichannel receiver and the portable computer, respectively. The multichannel receivers are correspondingly connected with the antenna array. The portable computer is connected with the multichannel receivers. A ground penetrating radar of the utility model has functions of both a borehole introscope and a common ground penetrating radar, perspective views of all vertical profiles around boreholes, obtained by antennas of the ground penetrating radar, are generated into three-dimensional perspective images around the boreholes, the three-dimensional perspective images and borehole wall images collected by the borehole introscope are synthesized by software, and then a three-dimensional stereo model of tunnel surrounding rock geological conditions is established. Therefore, the exploration device of the utility model helps to accurately determine geological conditions.
Description
Technical field
The utility model relates to geological exploration field, especially relates to the comprehensive surveying device of a kind of boring geological condition.
Background technology
In roadway surrounding rock, having internal stress, is its important feature that is different from Other Engineering material.The too little and direction of its geostatic stress significantly affects the deformation and failure characteristics in tunnel.Mining engineering is excavated scientifically and rationally, is designed and constructs, and particularly tunnel is arranged and Design of bolt support, all be unable to do without the abundant understanding to roadway surrounding rock geostatic stress situation.
Geostress survey is divided into direct measurement and indirectly measures.Directly measuring is directly to measure and record various amount of stress by measuring apparatus, as compensation stress, recovery stress, equilibrium stress, and by the correlation of these amount of stress and the stress of primary rock, by calculating, obtains stress of primary rock value.
In indirectly measuring, be applicable to the earth stress measuring method that under coal mine, particular surroundings requires, mainly contain stress relief method and hydraulic fracturing.Stress relief method is in measuring the process of stress, and measurement result is subject to components and parts self reliability effect larger, but also is subject to rock stratum modulus of elasticity and poisson's ratio reliability effect.Therefore the each side restriction that, stress relief method is subject under coal mine is larger.Certainty of measurement is difficult to guarantee.Hydraulic fracturing is without the modulus of elasticity of understanding and measure rock when measuring, and during test, minimum principal stress value has nothing to do with rock mechanics parameters completely; The spatial dimension that hydrofracturing is measured stress is larger, is subject to the impact of local factor less.
From hydraulic fracturing geostatic stress test philosophy, the selection of test section position is the most basic in test process and most important link, and the structural approach of choosing employing of test section mainly contains: core is taked method, drill hole wall impression method and drill hole wall observation.
It is in the process of drilling, to take core that core is taked method.According to cementing situation, integrality and the core-taking rate of institute's coring, judge the homogeneous integrality of roof strata.The method is low for clay component content, and cementing even, the rock stratum of moderate strength is comparatively applicable; For the rock stratum of argillaceous agglutination, clay component content is higher, is subject to the impact of water in getting the process of core drilling, core erosion phenomenon is comparatively serious, get in the process of core, under the compound action of rig end thrust and coring bit cutting, be easy to occur sheet fragmentation; Get core operation various, to the specific (special) requirements of construction space and facility, be also the weak point of the method.
Boring crack stamped method is the method for boring cylindrical wall fracture pattern that obtains by the impression in crack, is relatively suitable for fragmented rock body.But this method needs punching, impression, extraction, analysis interpretation, drawing supervisor, process more complicated, is used and has larger difficulty in down-hole large area.
Drill hole wall observation is the Structural plane distribution situation adopting on inspection instrument for borehole observation and testing bore holes wall.Its operating principle is to transmit image by optical fiber, directly observes, or by CCD camera, light is transformed into electric signal by eyepiece, obtains drill hole wall image clearly, according to imaging results, selects suitable hole section to carry out fracturing.
But only by not comprehensive to the geological condition of boring image judgement roadway surrounding rock, if boring reconnaissance is improper, directly can have influence on the degree of accuracy and the success rate of test, therefore need to a kind ofly can do the system that Comprehensive is measured to roadway surrounding rock integral status, to meet the needs of mining engineering.
Summary of the invention
For overcoming the deficiencies in the prior art part, the utility model provides a kind of boring geological condition comprehensive surveying device, can do to roadway surrounding rock integral status the measurement of Comprehensive, to meet the needs of mining engineering.
The technical scheme that the utility model technical solution problem adopts is: the comprehensive surveying device of boring geological condition, this surveying device comprises electronics sight glass and conveying lever, described electronics sight glass is connected to the bottom of described conveying lever, and described electronics sight glass is connected with portable computer by cable; Described conveying lever end is equipped with launching antenna array, multichannel receiver is equipped with in its stage casing, radar return cable two ends connect respectively described multichannel receiver and described portable computer, described multichannel receiver is corresponding with described receiving antenna array to be connected, and described portable computer is connected with described multichannel receiver.
Further, described conveying lever adopts hydraulically extensible bar, by more piece loop bar, is connected and is formed, and controls it elongate or shorten by described portable computer by bidirectional hydraulic pump.
Operating principle, ground penetrating radar (Ground Penetrating Radar) is called for short GPR, claim again geological radar, during geological radar work, under radar host computer is controlled, clock produces periodically nanosecond signal, and the transmitting antenna of directly feeding, while being coupled to via transmitting antenna the heterogeneous body (face) that underground signal runs into medium on propagation path, produce reflected signal.Reception antenna, after receiving underground echo, is directly transferred to receiver, and signal after shaping and amplification etc. are processed, to radar host computer, after treatment, is transferred to microcomputer through cable transmission at receiver.In microcomputer, signal is encoded according to amplitude size, and show in the mode of pseudo-colours level diagram/gray level figure or waveform accumulation graph, through processing, can be used to judge the characterisitic parameters such as the degree of depth, size and orientation of buried target.
Beneficial effect: the utility model ground penetrating radar has adopted the mode that inspection instrument for borehole is combined with ground penetrating radar, the boring that ground exploring radar antenna is obtained is the phantom drawing of whole vertical section around, generate boring three-dimensional perspective image around, the drill hole wall image collecting with inspection instrument for borehole synthesizes by software, construct the three-dimensional stereo model of roadway surrounding rock geological condition, image document and radar detection data are confirmed mutually, contribute to accurately to judge the situation that exists of the interior internal stress of roadway surrounding rock, more visual and understandable, reduced the difficulty that user uses.
Accompanying drawing explanation
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Referring to Fig. 1, the comprehensive surveying device of boring geological condition, comprises electronics sight glass 1 and conveying lever 2, and electronics sight glass 1 is connected to the bottom of conveying lever 2, and upper-lower position is respectively equipped with LED illuminating lamp 8, and electronics sight glass 1 is connected with portable computer 6 by cable 7; Conveying lever 2 ends are equipped with launching antenna array 3, multichannel receiver 4 is equipped with in conveying lever 2 stage casings, 4 ' and front end ICU, radar return cable 5,5 ' two ends are connecting multi-channel receiver 4 respectively, 4 ' and portable computer 6, multichannel receiver 4,4 ' is corresponding with launching antenna array 3 connected, portable computer 6 is connected with multichannel receiver 4,4 '.
Launching antenna array 3 is the 4 unit X-shaped square formations that form in 1 * 4 mode, under the control of portable computer 6, triggers, in underground formation beam scanning by the time delay integrated mode of setting.For realizing emitting electromagnetic wave bundle in underground scanning, by scan control circuit, control each road clock delay volume on demand and trigger.
Multichannel receiver 4,4 ' takes four pipe bridge formula balance gate circuit design.Balance gate circuit is all less than sampling leakage and the bypassing effect of non-equilibrium gate circuit; Also the rear sampling pulse of sampling gate unlatching and the inner noise that mixes have been reduced to sampling the impact of output.Four pipe bridge formula balance gate circuit are compared with two-tube balance gate circuit, and the isolation of rear class is wanted to high, have reduced bypassing effect; In addition, each arm of four pipe bridge formula doors is composed in series by two diodes, makes total junction capacity less, has improved frequency characteristic and the transient characteristic of gate circuit.
For the phase mutual interference between reduction system, taked following interference protection measure: 1. the control signal between digital circuit and analog circuit is isolated by photoelectrical coupler; 2. between difference in functionality modular circuit, adopt separated power supply as far as possible; 3. between each function module circuit, take shielding measure, reduce radiation interference.In addition, electronics sight glass 2 outsides are provided with electromagnetic shielding net 10, and cable 7 adopts computer shield control cables, prevent that radar signal from disturbing the vision signal of electronics sight glass.
Conveying lever 2 preferably adopts hydraulically extensible bar, by more piece loop bar, is connected and is formed, and by portable computer 6, passes through bidirectional hydraulic pump
9control conveying lever 2 and elongate or shorten, to adapt to the boring of different depth.
Native system operating principle is as follows:
The clock of each transmission channel is under the control of delay control circuit, and amount of delay on request triggers respectively, through transmitting antenna to underground radiated electromagnetic wave.On desired direction in space (this direction requires corresponding with certain time delay combination), make originally to have each unit radiated electromagnetic wave of relative time delay, near field range, arrive simultaneously, because homophase is interfered enhancing, form the near field narrow beam that the party makes progress.Set in advance a plurality of different direction in spaces (corresponding to a plurality of different delayed time settings), repeat said process and realize the scanning of emitting electromagnetic wave bundle.Receive each passage of battle array on circuit without relative time delay, adopt software mode to carry out mutually resistance to time delay to the reception echo of each antenna element, realize corresponding phase compensation and form and receive narrow beam and scanning thereof.
Simultaneously, electronics sight glass 2 forms panoramic picture by borehole wall image conversion, and transfer to and in portable computer 6, carry out digitized processing, obtain digitlization panoramic picture, this image is the image after borehole wall distortion, is generally difficult to direct observation, must form image intuitively through restoring transformation, the three-dimensional perspective image obtaining with ground penetrating radar is again combined, and constructs the three-dimensional stereo model of roadway surrounding rock geological condition.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (4)
1. the comprehensive surveying device of boring geological condition, is characterized in that: this surveying device comprises electronics sight glass and conveying lever, and described electronics sight glass is connected to the bottom of described conveying lever, and described electronics sight glass is connected with portable computer by cable; Described conveying lever end is equipped with launching antenna array, multichannel receiver is equipped with in its stage casing, radar return cable two ends connect respectively described multichannel receiver and described portable computer, described multichannel receiver is corresponding with described receiving antenna array to be connected, and described portable computer is connected with described multichannel receiver.
2. the comprehensive surveying device of geological condition of holing according to claim 1, is characterized in that: described conveying lever adopts hydraulically extensible bar, by more piece loop bar, is connected and is formed, and controls it elongate or shorten by described portable computer by bidirectional hydraulic pump.
3. the comprehensive surveying device of geological condition of holing according to claim 1, is characterized in that: described electronics sight glass outside is provided with electromagnetic shielding net.
4. the comprehensive surveying device of geological condition of holing according to claim 1, is characterized in that: described cable adopts computer shield control cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330841.XU CN203441479U (en) | 2013-06-08 | 2013-06-08 | Comprehensive borehole geological condition exploration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330841.XU CN203441479U (en) | 2013-06-08 | 2013-06-08 | Comprehensive borehole geological condition exploration device |
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| CN203441479U true CN203441479U (en) | 2014-02-19 |
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| CN201320330841.XU Expired - Fee Related CN203441479U (en) | 2013-06-08 | 2013-06-08 | Comprehensive borehole geological condition exploration device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932025A (en) * | 2015-06-11 | 2015-09-23 | 同济大学 | Shield tunnel lifting hole wall penetration outward-extension type electromagnetic wave ground detecting system and application thereof |
| CN104569947B (en) * | 2015-01-04 | 2017-07-04 | 信息产业部电子第二十二研究所青岛分所 | A kind of multi-channel data real time integrating method of GPR |
| CN107238865A (en) * | 2015-09-21 | 2017-10-10 | 安徽理工大学 | A kind of exploitation method for possessing the change of detection drift section and coordinate detection result |
| CN107424389A (en) * | 2017-09-19 | 2017-12-01 | 成都微鑫通时代科技有限公司 | The Multifunctional pre-warning device of Landslide Hazards |
| CN109882156A (en) * | 2019-04-01 | 2019-06-14 | 四川大学 | A kind of drill hole information acquisition method and device based on DIC technology |
-
2013
- 2013-06-08 CN CN201320330841.XU patent/CN203441479U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569947B (en) * | 2015-01-04 | 2017-07-04 | 信息产业部电子第二十二研究所青岛分所 | A kind of multi-channel data real time integrating method of GPR |
| CN104932025A (en) * | 2015-06-11 | 2015-09-23 | 同济大学 | Shield tunnel lifting hole wall penetration outward-extension type electromagnetic wave ground detecting system and application thereof |
| CN104932025B (en) * | 2015-06-11 | 2017-11-07 | 同济大学 | Shield tunnel hole for hoist broken wall extending type electromagnetic wave visits ground system and its application |
| CN107238865A (en) * | 2015-09-21 | 2017-10-10 | 安徽理工大学 | A kind of exploitation method for possessing the change of detection drift section and coordinate detection result |
| CN107424389A (en) * | 2017-09-19 | 2017-12-01 | 成都微鑫通时代科技有限公司 | The Multifunctional pre-warning device of Landslide Hazards |
| CN109882156A (en) * | 2019-04-01 | 2019-06-14 | 四川大学 | A kind of drill hole information acquisition method and device based on DIC technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20150608 |
|
| EXPY | Termination of patent right or utility model |