Coal mine water inrush disaster pre-warning method and device

Abstract

The invention discloses a coal mine water inrush disaster pre-warning method and device. The method includes: according to features of mining coal beds, dividing a mining area into a coal mining layer, a monitoring layer and a pre-warning layer; constructing a monitoring hole in the pre-warning layer; mounting the pre-warning device, and monitoring water pressure, water quality and water temperature data at the same time. The pre-warning device comprises a sensing device and a power source storage alarming device which are connected through a transmission guide pipe, the transmission guide pipe is arranged in a steel pipe sleeve, the sensing device is arranged in a sealing device and comprises a water pressure sensor, a water quality sensor and a temperature sensor, the power source storage alarming device comprises a processor used for processing data, a power source module and a storer, and the power source module and the storer are connected with the processor which is further connected with an alarm.

Description

technical field [0001] The invention relates to the technical field of coal mine water disaster prevention, in particular to a coal mine water inrush disaster early warning method and device, aiming at capturing and identifying precursory information of water disaster accidents during coal seam mining. Background technique [0002] The hydrogeological conditions of my country's coal deposits are complex, especially karst water often breaks into mine pits and endangers production safety, and the mining of lower coal formations (Taiyuan coal formations) in North China type coalfields is generally threatened by the Austrian ash confined aquifer at the base of coal-measure strata. Coal mine floor water damage is different from roof water damage. The problem of roof water damage mainly involves the movement of overlying rock during coal seam mining. Coal mine floor water inrush has the characteristics of strong water richness, high water pressure, strong concealment, and difficul...

AI Technical Summary

Problems solved by technology

At present, the water inrush monitoring of the aquifer with significant water inrush risk (that is, the early warning layer in the present invention) all adopts drilling to directly hit the early warning layer, and only monitors the water pressure value, which cannot achieve effective real-time monitoring, and Since only the early warning layer is monitored, the water pressure is almost unchanged, and there is no comparison data for the monitoring value, so the threshold value of the monitoring value cannot be determined, so the early warning function cannot be achieved, and the water inrush alarm cannot be realized.

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