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

A monitoring and early warning, full-space technology, applied to mining equipment, mining equipment, earthwork drilling and mining, etc., can solve the problems of small monitoring range, inability to perform continuous monitoring, and poor continuity, so as to improve accuracy, reduce and avoid rapid governance Effect

Inactive Publication Date: 2015-10-21
HEBEI COAL SCI RES INST
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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 mon

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

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] The method for real-time continuous monitoring and early warning of water inrush underground in the whole space of coal mine includes the following steps:

[0032] (1) Arrange a group of microseismic geophones near the coal mine mining face or structural weak zone, and conduct real-time continuous monitoring of all microseismic events in the monitoring area within a certain period of time. The full space refers to the space formed by the maximum monitoring range of the microseismic detector.

[0033] According to the monitoring range and the spatial relationship of the existing roadway, the layout of the microseismic geophones is divided into two modes: fully enclosed (such as figure 1 shown) and semi-enclosed (as figure 2 shown), both modes require the end of the microseismic detector to point to the monitored area. The fu...

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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...

Claims

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Application Information

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IPC IPC(8): E21F17/18
Inventor 刘建功李玉宝啜晓宇赵立松孙新博孟凡岭王丹
Owner HEBEI COAL SCI RES INST
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