Exploration and treatment methods of hidden water-conducting structures in deep working face

Abstract

The invention provides a method for detecting a hidden water-conducting structure in the deep part of a working face, which belongs to the technical field of coal mine operation area detection, monitoring and control, and includes the following steps: 1) before the mining of the working face, adopt the underground transient electromagnetic detection method and / or microseismic Monitoring method, to find out the spatial distribution of low-resistance abnormal areas within the scope of mining influence; 2) Use the downhole drilling method and / or the ground horizontal branch hole drilling method for drilling verification; if water gushes out in the drilling, Then it is considered that there is a water-conducting structure in the low-resistance abnormal area; wherein, the borehole runs through the low-resistance abnormal area, and the distance between the borehole and the central axis of the low-resistance abnormal area is greater than the distance from the top of the low-resistance abnormal area It is equal to 30m. The invention also provides a treatment method for the hidden water-conducting structure in the deep part of the working face. The method for detecting and controlling the hidden water-conducting structure in the deep part of the working face provided by the invention has accurate drilling results.

Description

technical field [0001] The invention belongs to the technical field of exploration, monitoring and treatment of coal mine operation areas, and more specifically relates to a method for exploration and treatment of a hidden water-conducting structure in the deep part of a working face. Background technique [0002] The water-conducting structure is an important channel for high-pressure groundwater to flow into the mining space from the deep aquifer, causing water inrush accidents. Finding out the spatial location of the water-guiding structure in advance is an important part of doing a good job in the prevention and control of water in coal mines. Historically, all major water inrush accidents in the North China coalfield were related to the failure to ascertain the spatial location of the water-guiding structure in advance and to take effective preventive measures in advance. [0003] Geophysical exploration and drilling are the two most important methods for the explorati...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for detecting and controlling the hidden water-conducting structure in the deep part of the working face, aiming at solving the technical problem that the current method for detecting the hidden water-conducting structure in the deep part of the working face is inaccurate.

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