Coal seam mining-induced fissure field gas pressure determination system

Abstract

The invention belongs to the technical field of gas pressure determination, and discloses a coal seam mining-induced fissure field gas pressure determination system. The system includes a mining-induced fissure gas flow construction module, a pressure adding module, a displacement detection module, a stratum stress calculation module, an excavation damage distribution marking module, a gas seepagepressure calculation module and a mining-induced fissure gas pressure construction module. The mining-induced fissure gas flow construction module is connected with the pressure adding module and themining-induced fissure gas pressure construction module. The pressure adding module, the displacement detection module and the stratum stress calculation module are connected in sequence. The excavation damage distribution marking module, the gas seepage pressure calculation module and the mining-induced fissure gas pressure construction module are connected in sequence. According to the system,force analysis can be carried out on a coal seam mining-induced fissure, an excavation position can be marked, thus stratum stress and gas seepage pressure can be calculated, then a clear and easy-to-understand model can be constructed, occurrence of coal mine gas dynamic disasters is effectively prevented, and a safety index of mining personnel is increased.

Description

technical field [0001] The invention belongs to the technical field of gas pressure measurement, and in particular relates to a gas pressure measurement system for a coal seam mining fissure field. Background technique [0002] At present, in recent years, my country's coal mining technology and equipment have been greatly improved, the mining intensity has increased, the output of coal mines has also increased, and the amount of gas emitted from coal seams has also increased greatly. While the industry is developing rapidly, it also leaves hidden dangers for coal mine power disasters and brings higher-level challenges to coal mine safety production. The existing coal seam mining fracture field gas pressure measurement is relatively simple, it is difficult to carry out in-depth measurement, and lack of modeling, it is difficult for people to intuitively observe the specific situation of coal seam mining fracture field gas pressure. [0003] To sum up, the problems existing ...

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Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the gas pressure measurement of the existing coal seam mining fracture field is relatively simple, it is difficult to carry out in-depth measurement, and lack of modeling, it is difficult for people to intuitively observe the coal seam mining fracture Field gas pressure details

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