202112

动压影响下典型巷道支护方案优化设计
发布人:网站管理员 发布时间:2021/12/16 点击次数:76次
  

动压影响下典型巷道支护方案优化设计
郝建新
(中煤大同能源有限责任公司塔山煤矿,山西 大同 037000)
摘要:以位于高应力区的中煤塔山煤矿3-5#层30515 工作面为例,在分析其典型巷道地质条件、围岩强度分析及地
应力测试等的基础上,运用FLAC3D 软件进行了该典型巷道模型的构建,并分析了工作面回采后煤柱支承压力分布及典
型巷道掘进时的煤柱支承压力分布,最后进行了巷道支护参数优化设计,取得了良好的效果,并为类似动压巷道科学支护提供了依据。
关键词:动压巷道;支护方案;优化设计
中图分类号:TD353     文献标识码:A     文章编号:2095-0802-(2021)12-0035-02
Optimal Design of Typical Roadway Support Scheme under Influence of Dynamic Pressure
HAO Jianxin
(Tashan Coal Mine, China Coal Datong Energy Co., Ltd., Datong 037000, Shanxi, China)
Abstract: Taking the 30515 working face of 3-5# coal seam of Tashan Coal Mine in the high-stress area as an example, based
on the analysis of the geological conditions, the strength analysis of the surrounding rock and the crustal stress test of the typical
roadway, this paper used the FLAC3D software to carry out the construction of the model of the typical roadway, analyzed the
supporting pressure distribution of the coal pillars after mining the working face and the supporting pressure distribution of the
coal pillars during the driving of the typical roadway, and finally carried out the optimization design of roadway support parameters,
which achieved good results and provided a basis for the scientific support of similar dynamic pressure roadways.
Key words: dynamic pressure roadway; support scheme; optimized design