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Mine roof and floor water inrush monitoring and prediction system and method

A forecasting system, roof and floor technology, applied in the field of coal mine safety, can solve the problems of decreased accuracy of monitoring results, single monitoring parameter basis, potential safety hazards, etc., and achieves the effects of fast collection speed, rich information, and error avoidance

Active Publication Date: 2014-01-22
WUHAN CONOURISH COALMINE SAFETY TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

The disadvantage of all methods is that the monitoring parameters are based on a single parameter or a parameter that is not directly related to the water inrush, which may easily lead to a decrease in the accuracy of the monitoring results of the water inrush on the roof and floor of the coal mine, and there are certain safety hazards

Method used

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  • Mine roof and floor water inrush monitoring and prediction system and method

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Effect test

Embodiment

[0051] The mine roof and floor water inrush monitoring and forecasting system is placed in the coal mine excavation roadway, the background vibration signal intensity of the mine roof and floor received by the three-dimensional vibration sensor 1.2 is 10mv, and 10mv is set as the amplitude value of the roof and floor background vibration signal; when the three-dimensional vibration sensor 1.2 At a certain moment, a vibration signal is measured, the intensity of the vibration signal is 35mv, and the vibration frequency is 500HZ; at this time, because the intensity of the vibration signal is greater than three times the amplitude value of the background signal of the mine roof and floor, the host terminal 3 in the ground control room starts the underground The on-site host 2 controls the electrode 1.3 to measure the mine roof and floor by the excited polarization high-density electrical method; The apparent resistivity of the floor is 300Ω / m (the background value of the apparent ...

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Abstract

The invention discloses a mine roof and floor water inrush monitoring and prediction system and a mine roof and floor water inrush monitoring and prediction method. The system comprises a ground control room host terminal, an underground site host, a comprehensive cable assembly and a plurality of detection terminals, wherein the underground site host is connected with the ground control room host terminal; the comprehensive cable assembly is connected with the underground site host; the detection terminals are arranged on a roadway wall, a roadway floor or a roadway roof along the mine roadway direction; each detection terminal comprises a controller, a three-dimensional vibration sensor, an electrode and a memory connected with the controller; signal output ends of the three-dimensional vibration sensor and the electrode are connected with a signal input end of the controller; a data communication end of each controller is connected with the underground site host through the comprehensive cable assembly. According to the system and the method, the accuracy and the real-time property of a mine roof and floor water inrush monitoring result can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of coal mine safety, in particular to a mine roof and floor water inrush monitoring and forecasting system and method. Background technique [0002] The formation and occurrence of mine water hazards have a change process from gestation, development to occurrence, and there are corresponding precursors in different stages of this change process. Microseismic monitoring is to find the specific parameters of the water-guiding channel, including the space-time position, energy and channel type, and according to the changes of factors such as water source, water volume and water temperature, combined with multi-disciplinary theories such as mine pressure and hydrogeology, to carry out advanced water inrush monitoring. Forecast and early warning. The existing method for monitoring water inrush on roof and floor of coal mine is to monitor water inrush on roof and floor of coal mine through methods such as microse...

Claims

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Application Information

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IPC IPC(8): G01V11/00
Inventor 武强刘春生刘鎏
Owner WUHAN CONOURISH COALMINE SAFETY TECH
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