沿空留巷应用柔模混凝土支护可行性探讨
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摘要
以鹿台山煤业2号煤层回采工作面支护为例,综合采用矿压理论分析、理论计算等方法,通过分析顶板上覆岩层运移规律以及巷旁支护载荷,并验算混凝土墙体的强度是否满足安全系数,提出合理的柔模混凝土支护参数及支护材料,探讨鹿台山煤业沿空留巷围岩控制技术的可行性。
By analysis of the overlying strata movement law on the roof and the supporting load of the roadside and checking whether the strength of the concrete wall meets the safety factor through mine pressure theoretical analysis and theoretical calculations,the author proposes the reasonable parameters and support material of the flexible concrete support at the mining face of No.2 coal seam in Lutaishan Coal Industry,and probes into the feasibility of surrounding rock control technology at retaining roadway along the road.
By analysis of the overlying strata movement law on the roof and the supporting load of the roadside and checking whether the strength of the concrete wall meets the safety factor through mine pressure theoretical analysis and theoretical calculations,the author proposes the reasonable parameters and support material of the flexible concrete support at the mining face of No.2 coal seam in Lutaishan Coal Industry,and probes into the feasibility of surrounding rock control technology at retaining roadway along the road.
引文
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[2]刘禹辰.中兴矿沿空留巷底鼓机理研究[D].中国矿业大学,2014.
[3]赵腾飞.浅埋煤层柔模混凝土沿空留巷技术应用研究[D].西安科技大学,2014.
[4]魏明月.沿空留巷覆岩运动规律及切顶卸压应用研究[D].河北工程大学,2018.
[5]李丽伟.综采切顶卸压沿空留巷无煤柱开采技术研究[D].河北工程大学,2017.
[6]刘忠平.深井厚煤层柔模泵注混凝土沿空留巷技术应用研究[D].西安科技大学,2013.