伯方煤矿回采巷道支护设计优化研究
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摘要
为保证伯方煤矿3#煤层的顺利安全回采,根据3#煤层的地质概况,利用理论公式确定巷道的支护参数,根据泥岩与锚固剂的粘结强度及煤帮与锚固剂的粘结强度对巷道顶板锚杆、锚索、帮部锚杆的打设数量、间排距进行优化分析,实践证明该支护方案可行。
In order to ensure the safe and smooth mining of No. 3 coal seam in Bofang Coal Mine, according to the geological situation of No. 3 coal seam, the supporting parameters of roadway are determined by theoretical formula. According to the cohesive strength of mudstone and anchorage agent and the cohesive strength of coal wall and anchorage agent, the number and row spacing of roof bolt, anchor cable and side bolt of roadway are optimized and analyzed. Practice proves that the supporting scheme is feasible.
In order to ensure the safe and smooth mining of No. 3 coal seam in Bofang Coal Mine, according to the geological situation of No. 3 coal seam, the supporting parameters of roadway are determined by theoretical formula. According to the cohesive strength of mudstone and anchorage agent and the cohesive strength of coal wall and anchorage agent, the number and row spacing of roof bolt, anchor cable and side bolt of roadway are optimized and analyzed. Practice proves that the supporting scheme is feasible.
引文