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综放沿空巷道围岩稳定性数值模拟研究

Study on Surrounding Rock Controlling Technology in Fully-mechanized Caving Roadway
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摘要 针对综放沿空巷道顶底板及两帮变形严重、稳定性差的问题,通过对沿空巷道失稳力学机理的分析,利用FLAC数值模拟软件,对支护与未支护条件下选取不同煤柱宽度时的沿空巷道底板下沉量及煤柱水平位移进行了模拟分析,得出在南岭公司303工作面地质条件下,煤柱宽度与沿空巷道底板下沉量及煤柱水平位移的关系,最终确定了最为合理的煤柱宽度。 Based on the surrounding rock deformed serious and poor stability of fully-mechanized caving faces gob-side entry problem, through the analysis of gob-side entry instability of mechanics mechanism, the FLAC numerical simulation software was used to simulate the subsidence and horizontal displacement of the coal pillar width and the supporting conditions, the coal pillar width and subsidence and horizontal displacement of the coal pillar along roadway floor in the geological conditions of 5303 fully-mechanized caving was concluded and the most reasonable coal pillar width was settled ultimately.
作者 田秀龙
出处 《煤炭与化工》 CAS 2014年第6期23-25,共3页 Coal and Chemical Industry
关键词 沿空巷道 煤柱宽度 锚杆支护 gob-side entry width of coal pillar bolt support
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