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断层影响下巷道应力演化规律及围岩控制研究     被引量:5

Research on Stress Evolution Law and Surrounding Rock Control of Roadway Under the Influence of Fault

文献类型:期刊文献

中文题名:断层影响下巷道应力演化规律及围岩控制研究

英文题名:Research on Stress Evolution Law and Surrounding Rock Control of Roadway Under the Influence of Fault

作者:吴少康 郑伟 吴旭坤 贾毅超 罗鼎 张际涛

第一作者:吴少康

机构:[1]贵州大学矿业学院,贵州贵阳550025;[2]贵州理工学院矿业工程学院,贵州贵阳550003;[3]安徽理工大学矿业工程学院,安徽淮南市232001;[4]辽宁科技大学矿业工程学院,辽宁鞍山市114051;[5]贵州致远工程技术咨询有限公司,贵州贵阳550003

第一机构:贵州大学矿业学院,贵州贵阳550025

年份:2022

卷号:42

期号:4

起止页码:74-79

中文期刊名:矿业研究与开发

外文期刊名:Mining Research and Development

收录:CSTPCD;;北大核心:【北大核心2020】;

基金:国家自然科学基金项目(51874109);贵州省科技计划项目(黔科和支撑[2019]2861号,黔科合平台人才[2019]5674号)。

语种:中文

中文关键词:软岩巷道;断层;围岩应力;塑性区;巷道支护;数值模拟

外文关键词:Soft rock;Fault;Surrounding rock stress;Plastic zone;Roadway support;Numerical simulation

摘要:运用现场监测、理论分析及数值模拟相结合的方法,对糯东煤矿断层影响下副平硐及回风大巷的变形破坏及其主要原因进行了研究。研究表明,在断层影响下,副平硐顶、底板产生拉伸破坏,两帮发生鼓出变形;回风巷道与副平硐交叉处发生剪切滑移破坏,底板发生明显的拉伸破坏。提出了新的巷道施工与支护方案。实践表明,采用新的巷道施工与支护方案后,巷道围岩变形明显降低,其稳固性得到了大的改善。
The combination method of field monitoring, theoretical analysis and numerical simulation was used to study the deformation failure and its main causes of auxiliary adit and return air roadway under the influence of fault in Nuodong coal mine. The research shows that under the influence of the fault, tensile failure appears at the roof and floor of the auxiliary adit and bulging deformation exists at two sides. Shear sliding failure occurs at the intersection of return air roadway and auxiliary adit, and obvious tensile failure occurs at the floor. A new roadway construction and support scheme was proposed. The practice shows that after adopting the new scheme, the surrounding rock deformation of the lower roadway has been significantly reduced and its stability has been greatly improved.

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