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金属矿山 ›› 2013, Vol. 42 ›› Issue (05): 1-4+9.

• 采矿工程 •    下一篇

深部软岩巷道耦合支护方案的数值模拟

高林1,徐国强1,李国峰2   

  1. 1.河北联合大学建筑工程学院;2.中铁六局集团有限公司
  • 出版日期:2013-05-15 发布日期:2013-06-08

Numerical Simulation on the Coupling Support Scheme of Deep Soft Rock Roadway

Gao Lin1,Xu Guoqiang1,Li Guofeng2   

  1. 1.Faculty of Civil Engineering,Hebei United University;2.China Railway Sixth Group Co.,Ltd.
  • Online:2013-05-15 Published:2013-06-08

摘要: 结合深部软岩巷道特殊的地质状况和围岩环境,分别采用“锚网+钢带+锚索+喷射混凝土”和“恒阻大变形锚杆+钢带+底角注浆锚管”的耦合支护方案,并利用有限差分软件FLAC3D,对深部软岩巷道在开挖后出现的破坏情况进行了动态数值模拟,并对比分析了巷道在不同支护条件下的应力应变分布规律以及支护体的受力状况,为深部软岩巷道支护方案的选用提供了科学依据。

关键词: 深部软岩, 巷道, 耦合支护, 数值模拟

Abstract: Combined with the special geological conditions and wall rock environment of the deep soft rock roadway,the coupling support scheme with “anchor net + steel strip + anchor cable + shotcrete” and “large deformation anchor with constant-resistance + steel strip + base angle grouting anchor tube” are implemented respectively With the use of the finite difference software FLAC3D,the dynamic numerical simulation on the destruction of deep soft rock roadway after excavation is made to analyze the distribution of the stress and strain and the force status of the support,thus providing the scientific basis for the implementation of supporting scheme in deep soft rock roadway.

Key words: Deep soft rock, Roadway, Coupling support, Numerical simulation