6201切巷巷道支护方案设计研究
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摘要
基于6号煤二采区上方3号煤层部分采空的实际情况,结合岩石力学实验测定结果,通过现场调研、理论计算分析、工程类比法得出6201切巷巷道支护方案,并对应用情况进行围岩位移动态监测。结果表明:6201切巷支护效果良好,回采期间未出现较大的围岩变形。
Based on the actual situation of partial goaf in No. 3 coal seam above No.6 No.2 mining area, combined with rock mechanics test results, through field investigation, theoretical calculation and analysis, engineering analogy method, 6201 cutting roadway support scheme is obtained, and dynamic monitoring of surrounding rock displacement is carried out. The results show that the supporting effect of 6201 cutting roadway is good, and there is no large deformation of surrounding rock during mining.
Based on the actual situation of partial goaf in No. 3 coal seam above No.6 No.2 mining area, combined with rock mechanics test results, through field investigation, theoretical calculation and analysis, engineering analogy method, 6201 cutting roadway support scheme is obtained, and dynamic monitoring of surrounding rock displacement is carried out. The results show that the supporting effect of 6201 cutting roadway is good, and there is no large deformation of surrounding rock during mining.
引文
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