【摘要】 基于双曲线型Mohr强度准则和极限平衡原理,研究了预应力锚索的极限抗拔力。锚索的极限抗拔力受到岩土体的种类、破裂面的形状、灌浆压力和围岩压力等影响,研究结果表明:随着灌浆压力的增加,极限抗拔力也相应增加。其结果可以为锚索的工程应用提供理论依据。更多还原

【Abstract】 Base on the hyperbolic Mohr strength criterion and ultimate balance principle,the ultimate pulling force of the pre-stressed anchor was studied.The ultimate pulling force of the anchor would be influenced by the type of the rock and soil mass,shape of the cracking surface,grouting pressure,surrounding rock pressure and others.The study results showed that with the grouting pressure increased,the ultimate pulling force also would be increased.The results could provide the theoretical references to the application of the anchor project.更多还原