Multi-means complicated condition detection method of residual mining area

Abstract

The invention discloses a multi-means complicated condition detection method of a residual mining area, relates to the field of residual coal repeated mining and aims at the problem of damage and waste to a large amount of resources caused by a non-standard mining method such as traditional room and pillar mining and roadway pillar mining. By the multi-means complicated condition detection method,technologies such as ground transient electromagnetic exploration, a working surface transient electromagnetic method, an audio cataphoresis method, a radio wave gallery perspective method, a single-point seismic method, slot wave seismic method detection and coal destruction numerical simulation analysis are integrated. A means is provided for detection of coal bed hoisting, gateway distributionand ponding condition, and moreover, the coal recycling rate is substantially improved.

Description

technical field [0001] The invention relates to the technical field of residual coal re-mining, in particular to a method for detecting complex conditions in residual mining areas based on multiple means. Background technique [0002] The overall recovery rate of coal in my country is low. Taking Shanxi as an example, due to technical limitations in the early days, only major state-owned and local state-owned coal mines adopted advanced longwall mechanized mining techniques such as fully mechanized mining and high-grade general mining, and a large number of individual small mines , using an informal room-and-pillar mining system with outdated technical system and low degree of mechanization. In order to improve production and efficiency, coal pillars are mainly used as supports. A large amount of residual coal resources are not included in the mine mining system and are all wasted. This extensive coal mining model of "easy to mine and difficult to discard" is characterized by...

AI Technical Summary

Problems solved by technology

Invention patent CN109339787A discloses a method for rational layout of abandoned coal mining roadways in the middle layer of the compound caving residual mining area, which solves the problem that the method for determining the reasonable position of the mining roadway during the upward or downward mining of the traditional coal seam group can no longer meet the requirements of the middle part of the compound caving residual mining area. The need to determine the location of the roadway layout of the abandoned coal recovery roadway in the whole layer

Although many achievements have been made in residual coal re-mining, these studies mainly focus on the use of filling and replacement to recycle the remaining coal pillars in the residual mining area, the reasonable layout of abandoned coal mining roadways in the compound caving residual mining area, methods for recovering residual coal from large coal pillars, etc., but there are few research methods for multi-measuring detection in old mining residual coal areas

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