Sedimentation monitoring method of coal mine underground reservoir
A technology for underground reservoirs and groundwater, applied in groundwater detection/exploration, geophysical measurement, measuring devices, etc., can solve problems such as reservoir siltation, hidden dangers of underground safety production, unfavorable underground reservoir operation, etc., to ensure safe operation, avoid limitations and unreliable effect
Active Publication Date: 2014-09-03
CHINA SHENHUA ENERGY CO LTD
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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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[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
[0032] like figure 1 As shown, the deposition monitoring method of the coal mine underground reservoir in the present invention comprises the following steps:
[0033] Step S100: Investigate the underground reservoir of the coal mine.
[0034] The step of investigating the underground reservoir of the coal mine further includes:
[0035] Step S101: Investigate the internal and external geological conditions of the underground reservoir and the flow characteristics of groundwater.
[0036] Preferably, the internal and external geological conditions of the underground reservoir include: the lithological conditions of the rock formation where the underground coal reservoir is located and the structural form of the caving gangue in the underground reservoir of the coal mine.
[0037] Preferably, the flow characteristics of the groundwater inclu...
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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 of coal mine underground reservoir. Background technique [0002] my country is a water-deficient country, and the phenomenon of water shortage poses a serious threat to the development of the national economy and the improvement of people's lives. Mine water is inevitable in the process of coal mining. As a precious water resource, only the key state-owned coal mines discharge 2.2 billion tons of mine water every year. On average, 2 tons of wastewater are discharged for every ton of coal mined. On the one hand, the discharge of mine water not only wastes a lot of valuable water resources, but also easily causes 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 of water resources...
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IPC IPC(8): G01V9/00G01V9/02
Inventor 顾大钊张凯李全生贺安民
Owner CHINA SHENHUA ENERGY CO LTD