Coal mine water burst down-hole full-space real-time continuous monitoring early-warning method

Abstract

The invention discloses a coal mine water burst down-hole full-space real-time continuous monitoring early-warning method which comprises the steps that 1. a group of slight shock detectors are arranged on a coal mine down-hole excavating working face or near a construction weak zone, and all slight shock events in a certain time period in a monitoring zone are subjected to full-space real-time continuous monitoring; 2. all the slight shock events are subjected to time locating and space locating; and 3. according to a space profile distribution graph in the step 2, a slight shock event dense distribution zone in a water source layer is subjected to incubation period blue early warning, a slight shock event dense distribution zone in a water insulating layer is subjected to development period yellow early warning, and a slight shock event dense distribution zone near the excavating working face is subjected to burst period red early warning. The method can carry out omnibearing real-time continuous monitoring and effective early warning on a water source layer, a water insulating layer and an excavating layer, so that real-time judging of water burst time, the water burst point position and the water burst type is achieved, and significance is achieved on reducing and avoiding of water burst accidents and quick treating of water burst.

Description

technical field [0001] The invention relates to the technical field of coal mine water inrush monitoring. Background technique [0002] Coal mine water inrush monitoring and early warning is an important technology related to coal mine production safety, preventing and avoiding major water inrush accidents in coal mines. [0003] Conventional monitoring techniques include contact and non-contact monitoring techniques. Contact monitoring technology includes water pressure, water quality, stress and other monitoring and analysis technologies, and non-contact monitoring technology includes mine electrical method and other monitoring technologies. [0004] The contact monitoring technology can only give an early warning when the water inrush accident has developed to a certain extent and the groundwater has come into contact with the monitoring probe. In many cases, it is too late to take measures, resulting in water inrush and flooding accidents. Therefore, there is a problem...

AI Technical Summary

Problems solved by technology

In many cases, it is too late to take measures, resulting in water inrush and flooding accidents. Therefore, there is a problem of poor monitoring timeliness;

[0005] Non-contact monitoring technology is forward-looking to a certain extent, but it cannot perform continuous monitoring, and the monitoring range is small. It can only conduct regular and irregular monitoring of water inrush within a certain depth range below the embedded electrode group. The maximum monitoring distance does not exceed 150-200m, poor continuity and small space range

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