高应力软岩巷道定量让压支护技术研究
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摘要
以司马煤矿2采区1208工作面作为研究对象,对高应力软岩巷道提出了让压支护技术,通过多级有强让压和支架高强抗压的支护方法,保证巷道围岩的稳定安全,通过力学分析得出了围岩变形情况,得出理想支护时间和理论让压空间,通过数值分析验证了支护方案的可行性。
The 1208 working face in the 2 mining area of Sima Coal Mine is taken as the research object,the quantitative pressure support technology for high stress soft rock roadway is put forward. Through a multi-level support method with strong pressure and support high-strength compression, to ensure the stability of roadway surrounding rock. Through mechanical analysis, the deformation of the surrounding rock was obtained, and the ideal support time and theoretical pressure relief space were obtained. The feasibility of the support scheme was verified by numerical analysis.
The 1208 working face in the 2 mining area of Sima Coal Mine is taken as the research object,the quantitative pressure support technology for high stress soft rock roadway is put forward. Through a multi-level support method with strong pressure and support high-strength compression, to ensure the stability of roadway surrounding rock. Through mechanical analysis, the deformation of the surrounding rock was obtained, and the ideal support time and theoretical pressure relief space were obtained. The feasibility of the support scheme was verified by numerical analysis.
引文
[1]韩昌良.沿空留巷围岩应力优化与结构稳定控制[D].中国矿业大学,2013.
[2]卢小雨.深井大断面沿空留巷围岩稳定控制机理研究[D].安徽理工大学,2013.
[3]郑西贵,刘娜,冯晓巍,等.基于ANSYS的U型钢反拱梁承载性能及稳定性分析[J].采矿与安全工程学报,2015,32(03):459-464.
[4]赵彦,赵光明,梁东旭.软岩巷道二次合理支护时间的确定[J].煤矿开采,2016,21(4):60-64.
[5]程立朝,陆庭侃.膨胀特性对软岩巷道围岩变形规律的影响研究[J].河南理工大学学报(自然科学版),2006,25(6):461-464.23
[6]李英杰,张顶立,刘保国.考虑变形模量劣化的应变软化模型在FLAC3D中的开发与验证[J].岩土力学,2011(S2):647-652+659.
[7]徐金海,周保精,吴锐.煤矿锚杆支护无损检测技术与应用[J].采矿与安全工程学报,2010,27(2):166-170.
[2]卢小雨.深井大断面沿空留巷围岩稳定控制机理研究[D].安徽理工大学,2013.
[3]郑西贵,刘娜,冯晓巍,等.基于ANSYS的U型钢反拱梁承载性能及稳定性分析[J].采矿与安全工程学报,2015,32(03):459-464.
[4]赵彦,赵光明,梁东旭.软岩巷道二次合理支护时间的确定[J].煤矿开采,2016,21(4):60-64.
[5]程立朝,陆庭侃.膨胀特性对软岩巷道围岩变形规律的影响研究[J].河南理工大学学报(自然科学版),2006,25(6):461-464.23
[6]李英杰,张顶立,刘保国.考虑变形模量劣化的应变软化模型在FLAC3D中的开发与验证[J].岩土力学,2011(S2):647-652+659.
[7]徐金海,周保精,吴锐.煤矿锚杆支护无损检测技术与应用[J].采矿与安全工程学报,2010,27(2):166-170.