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A method and device for accurately detecting underground hidden diseases

A precise and disease-resistant technology, which is applied in measuring devices, seismology, seismic signal processing, etc., can solve problems such as difficult to quickly detect hidden underground diseases, and achieve reliable detection results, simple methods, and convenient operation

Active Publication Date: 2021-01-15
UNIV OF SCI & TECH BEIJING +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a method and device for accurately detecting underground hidden diseases to solve the problem that it is difficult to quickly detect underground hidden diseases in the prior art

Method used

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  • A method and device for accurately detecting underground hidden diseases
  • A method and device for accurately detecting underground hidden diseases
  • A method and device for accurately detecting underground hidden diseases

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Embodiment 1

[0038] Such as Figure 4 As shown, the present invention provides a method for accurately detecting underground hidden diseases, comprising the following steps:

[0039] S100. Determining the mined-out area: collecting and analyzing engineering geology and hydrogeological work results, selecting areas with severe resource extraction and mining, and determining the lithology and hydrological distribution of the mined-out area;

[0040] S200. Arranging the seismic wave excitation grid array: calculate the seismic scattering grid spacing in combination with the above-mentioned goaf lithology, hydrological distribution characteristics and the basic parameters of the seismic scattering technology, and lay out several survey lines along the vertical and horizontal two orthogonal directions to form a seismic wave excitation grid array The calculation method of the seismic scattering grid spacing is as follows: λ=V·T, and λ / 3 is taken as the seismic scattering grid spacing, where λ is...

Embodiment 2

[0050] Such as Figure 1 to Figure 3 As shown, the present invention provides an accurate detection device for underground hidden diseases, including a seismic scattering device 1 and a borehole digital imaging device 2 .

[0051] The seismic scattering device 1 includes a signal collection device 101 and a signal processing device 102. The signal collection device 101 is arranged into a seismic wave excitation network array 103 according to the land lithology and hydrological distribution, and the seismic wave excitation network array 103 collects different seismic scattering profile data through the signal The processing device 102 processes and synthesizes a seismic scatter three-dimensional orthogonal stereogram 104 through the imaging device 3;

[0052] The borehole digital imaging device 2 includes a detection device 201, a microcomputer 202 and an imaging display device 203. The detection device 201 is used to detect the optimized goaf 4 determined by the seismic scatte...

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Abstract

An embodiment of the invention discloses a method for accurately detecting underground hidden diseases, comprising five steps of determining a goaf, arranging a seismic wave excitation network array,imaging analysis, optimizing the setting of drilling points, and determining the scope of the goaf; the detecting device comprises a seismic scattering device and a borehole digital imaging device; asignal collecting device of the seismic scattering device is arranged in a seismic wave excitation network array according to the lithology and hydrological distribution of the land, the seismic waveexcitation network array acquires data of different seismic scattering profiles, and the data is processed and synthesized into a seismic scattering three-dimensional orthogonal image; optimized goafs determined by the seismic scattering three-dimensional orthogonal image are detected one by one by using a detection device of the borehole digital imaging device, and a three-dimensional distribution image of the goafs is reconstructed after processing by a microcomputer; and the detecting method is completed. The method is convenient to operate, simple and reliable in detection results, and issuitable for rapid and accurate detection of remaining empty areas such as resource extraction, urban subsidence and mining subsidence after mining.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of underground disaster detection devices, in particular to a method and device for precise detection of underground hidden diseases. Background technique [0002] The detection of gobs at home and abroad mainly includes seismic technology and electromagnetic technology. Seismic methods are mainly two-dimensional and three-dimensional reflection seismic; electromagnetic methods include: CSAMT, transient electromagnetic, high-density electrical method, conductivity, etc. The outstanding advantages of the seismic method are high resolution, large detection depth, and accurate positioning. It is the preferred method for goaf detection. The electromagnetic method is not suitable for the detection of gobs in formations with low water content or lack of water, and the results have low accuracy and limitations. The current seismic method is based on the theory of reflection seismic, which is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/18G01V1/20G01V1/40G01V1/28
CPCG01V1/184G01V1/20G01V1/28G01V1/40
Inventor 吕祥锋周宏源张硕杨晓辉王涛黄景琦刘力源周毅
Owner UNIV OF SCI & TECH BEIJING
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