| 拉力型锚索极限承载力的解析解与试验研究 |
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| 引用本文： | 高德军,徐卫亚.拉力型锚索极限承载力的解析解与试验研究[J].中南大学学报(自然科学版),2010,41(1). |
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| 作者姓名： | 高德军 徐卫亚 |
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| 作者单位： | 1. 河海大学,岩土工程研究所,江苏,南京,210098;三峡大学,土木水电学院,湖北,宜昌,443002
2. 河海大学,岩土工程研究所,江苏,南京,210098 |
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| 基金项目： | 国家自然科学基金重点资助项目 |
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| 摘 要： | 针对拉力型锚索锚固岩体的破坏形式,结合拉力型锚索作用下岩体破坏面方程,采用Mohr-Coulomb强度准则,对破坏区岩体的极限平衡状态进行研究。以此为基础,推导基于岩体破坏面方程的拉力型锚索极限承载力的解析解,并分析破坏面形状与锚索几何参数对极限承载力的影响,与拉力型锚索的试验成果进行对比分析。研究结果表明:采用拉力型锚索的解析表达式可以较合理地估算拉力型锚索的极限承载力;基于围岩体破坏的锚索承载力与其破坏面形状有关,对于锚固段存在结构面或滑动面的锚索,需对锚索基于围岩体破坏的承载力进行验算。
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| 关 键 词： | 拉力型锚索 极限平衡法 岩体破坏面 极限承载力 |
Analytical solution and experimental study on ultimate bearing capacity of tensile type anchor cable |
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| GAO De-jun,XU Wei-ya.Analytical solution and experimental study on ultimate bearing capacity of tensile type anchor cable[J].Journal of Central South University:Science and Technology,2010,41(1). |
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| Authors: | GAO De-jun XU Wei-ya |
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| Institution: | GAO De-jun1,2,XU Wei-ya1 (1. Institute of Geotechnical Engineering,Hohai University,Nanjing 210098,China,2. College of Civil , Hydroelectric Engineering,Three Gorges University,Yichang 443002,China) |
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| Abstract: | Focused on the failure modes of anchored rock mass, combined with researches of failure surface equation of anchored rock mass, limit equilibrium state of rock mass in failure zone was studied by adopting Mohr-Coulomb strength criterion. Based on the obtained equation of failure surface, analytic solution of ultimate bearing capacity of tensile anchor cable was deduced. The influences of failure surface shape and geometry parameters of cable on the ultimate bearing capacity were analyzed. The analytical sol... |
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| Keywords: | tensile type anchor cable limit equilibrium method failure surface of rock mass ultimate load bearing capacity |
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