E3S Web of Conf.
Volume 406, 2023The 9th International Conference on Energy Materials and Environment Engineering (ICEMEE 2023)
|Number of page(s)
|Energy Conservation Technology and Energy Sustainability
|31 July 2023
Study on Sealing Depth Optimization of Gas Drainage Borehole in Coal Seam
China Coal Technology and Engineering Group Chongqing Research Institute
To determine the reasonable sealing depth of the drainage borehole in the coal seam along lane W33011 of the Sihe coal mine and improve sealing quality based on the mine geological conditions, FLAC3D numerical simulation software was used to simulate the stress distribution and fracture development of coal body around the roadway after the roadway excavation. YFZ3 hole sealing quality detector was adopted to detect the hole sealing quality and leakage position. The reasonable drilling depth in the test area was determined to be 15m, effectively improving the gas drainage effect. This technology has important reference significance for improving the quality of hole sealing in other mines.
© The Authors, published by EDP Sciences, 2023
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