A deposition monitoring method for coal mine underground reservoir

Abstract

The invention discloses a sedimentation monitoring method of a coal mine underground reservoir. The sedimentation monitoring method comprises the following steps that exploration is conducted on the coal mine underground reservoir; sedimentation monitoring points are determined according to the exploration result; flow monitoring points are arranged at water pumping holes of the coal mine underground reservoir; according to the monitoring conditions of the sedimentation monitoring points and flow monitoring data of the flow monitoring points, sedimentation states and water flow changes are analyzed, and the sedimentation period is determined. According to the sedimentation monitoring method of the coal mine underground reservoir, the sedimentation monitoring points of the underground reservoir are distributed according to the characteristics of the coal mine underground reservoir, and sedimentation removing is conducted in time through sedimentation monitoring and water flow monitoring. Due to the combination of sedimentation monitoring and water flow monitoring, limitation and unreliability of a single monitoring means are avoided. The sedimentation monitoring method solves the monitoring problem of the sedimentation state in a closed space of the coal mine underground reservoir, the situation of the potential safety hazard of water burst which is caused due to the fact that an underground reservoir is deposited and a large amount of water is closed is avoided and safe operation of the underground reservoir is guaranteed.

Description

technical field [0001] The invention relates to the comprehensive application of mining engineering and water conservancy engineering, in particular to a deposition monitoring method for coal mine underground reservoirs. Background technique [0002] my country is a water-short country, and the shortage of water resources poses a serious threat to the development of the national economy and the improvement of people's lives. Mine water is unavoidable in the process of coal mining. As a precious water resource, the mine water discharged by key state-owned coal mines alone is as high as 2.2 billion tons every year. On average, every ton of coal mined needs to discharge 2 tons of wastewater. On the one hand, the discharge of mine water not only wastes a lot of precious water resources, but also easily constitutes serious environmental pollution to the surrounding environment. On the other hand, there are abundant coal resources in the western region of my country, but the lack...

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Problems solved by technology

However, in this process, due to the separation of loose gangue and the precipitation of suspended particles, it is easy to cause reservoir siltation, and the siltation state is difficult to observe, which is not conducive to the operation of underground reservoirs, and at the same time poses hidden dangers to underground safety production

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