Floor water inrush early-warning system and method in coal mining

Abstract

The invention provides a floor water inrush early-warning system and method in coal mining, which belongs to the field of mine hydrogeology and mining engineering. The early-warning system comprises a microseismic monitoring system, a numerical value calculation system, a virtual reality system, a network transmission system and an early-warning forecast analysis center. The spatial array arrangement of a sensor network in microseismic monitoring system is the key to affect the reliability and the effectiveness of microseismic monitoring data. Hypocenter positioning errors are reduced. In a virtual three-dimensional geological environment, geological bodies can be visually, clearly and accurately displayed, which helps an analyst to deeply understand and analyze the formation, evolution and development of the geological bodies in an engineering area. Inspiration and help are provided for further revealing the geometric shape of hidden geological structures, determining the movement law of faults, clarifying stratum contact relation and intensively studying geography laws. Through the seamless connection and display of the microseismic monitoring data, stress analysis results and a three-dimensional geomechanical model, floor water inrush is monitored and early-warned in real time.

Description

technical field [0001] The invention relates to a floor water inrush early warning system and method during coal mine mining, belonging to the fields of mine hydrogeology and mining engineering. Background technique [0002] Coal mine water inrush monitoring is the main method of mine geophysical exploration. This technology mainly utilizes the characteristics that the tunnel engineering is closer to geological and hydrogeological bodies, and conducts underground monitoring and research on the physical property differences, electrical property differences, magnetic differences, and propagation differences of different rock and soil components. At present, there are three kinds of methods widely used in coal mine water inrush monitoring: mine resistivity method, mine transient electromagnetic method and mine floor damage fracture zone detection method. In recent years, the domestic mine electrical technology for roadway roof, floor structure and hydrogeological conditions ha...

AI Technical Summary

Problems solved by technology

These methods are either because the theory is not perfect, or because the actual situation in the theoretical field is too complicated, and it is a static detection before the mining of the coal mine face, rather than a real-time detection with the mining of the working face, so that the water inrush from the coal mine floor Monitoring and early warning become difficult problems

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