巷道支护优化及数值模拟研究
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摘要
针对深度开采、原岩应力高、地质构造复杂、巷道变形大的特点,分析了巷道围岩变形规律和破坏原因,确定了提高围岩自稳能力、加强控制关键部位的优化原则,并运用数值分析方法(FLAC)模拟了巷道变形及稳定性,提出了优化支护设计方案,采用优化后的支护设计在现场取得了良好的应用效果。
For the characteristics of super-depth mining,the high of situ rock stress,the complex geologic structure and the large deformation of the roadway,the deformation law and the damage reason of the surrounding rock are analyzed.For the analysis,the optimization principles are to enhance the homeostasis capacity of surrounding rock and to control the important part of the rock.According to the numerical simulation of the deformation and stability of the roadway,the optimization support method is proposed.The optimization support design obtains a good effect at scene.
For the characteristics of super-depth mining,the high of situ rock stress,the complex geologic structure and the large deformation of the roadway,the deformation law and the damage reason of the surrounding rock are analyzed.For the analysis,the optimization principles are to enhance the homeostasis capacity of surrounding rock and to control the important part of the rock.According to the numerical simulation of the deformation and stability of the roadway,the optimization support method is proposed.The optimization support design obtains a good effect at scene.
引文
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[2]阎莫明.岩土锚固技术的新进展[M].北京:人民交通出版社,2000.
[3]田冶友.矿区原岩应力场的测定与研究[J].岩石力学,1994(5):21-26.
[4]隋红军,张淑坤,路达.采区巷道监测方案设计分析[J].山西建筑,2008,34(10):100-101.
[5]B.C.海姆森.地应力测量与研究[M].丁健民,译.北京:地震出版社,1982.
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