Advanced geological forecasting method and device and storage medium

An advanced geological prediction and geological technology, applied in the field of geological exploration, can solve the problems of small spatial scale and velocity impedance differences, missed reports, and low fissure water accuracy.

Inactive Publication Date: 2019-10-11
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP +1
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Problems solved by technology

[0003] However, because bedrock fissure water (bedrock fissure water is a kind of groundwater) is relatively small in terms of spatial scale and velocity impedance difference, there are problems of low accuracy and under-reporting in the prediction of fissure water in related technologies

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  • Advanced geological forecasting method and device and storage medium
  • Advanced geological forecasting method and device and storage medium
  • Advanced geological forecasting method and device and storage medium

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Embodiment Construction

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the specific technical solutions of the invention will be further described in detail below in conjunction with the drawings in the embodiments of the present invention. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0060] The geology to be detected in the embodiment of the present invention may include tunnels, but is not limited thereto.

[0061] In related technologies, the combination of long-distance TSP and short-distance GPR is generally used to carry out advanced geological prediction work. TSP can detect the change of surrounding rock velocity impedance, and predict the lithology change, structural development, structural characteristics and mechanical strength of the surrounding rock in front of the excavation face through the detection results, and is...

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Abstract

The embodiment of the invention provides an advanced geological forecasting method and device and a storage medium. The method comprises the following steps: detecting the geology to be detected by using an audio magnetotelluric method (AMT), and determining a first area in which crack water is suspected to exist in the geology to be detected; detecting the first area with a seismic reflection method (TSP) to obtain a first detection result, wherein the first detection result represents the state of the crack water in a first distance segment in the first area; when the first detection resultis determined to satisfy a first condition, detecting the first area by using a detection strategy including a three-dimensional sector transient electromagnetic method (3D-STEM) to obtain a second detection result; and implementing geological forecasting according to the second detection result.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to an advanced geological prediction method, device and storage medium. Background technique [0002] Advanced geological forecasting is the use of geophysical prospecting, face sketching and drilling to detect the geological conditions in front of the excavation face of rock and soil in tunnels, underground powerhouses and other underground projects, and strive to grasp the structure, nature and state of the rock and soil ahead before construction , as well as geological information such as the occurrence of groundwater, gas, and in-situ stress, to provide guidance for further construction, to avoid geological disasters such as water gushing, rockburst, and large deformation during construction and operation, and to ensure the safety and security of construction. went well. [0003] However, because bedrock fissure water (bedrock fissure water is a kind of groundwater) is rel...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 刘铁华刘锦东刘府生刘铁严申华周革化希瑞王敏陈志兴毛泽宇
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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