【摘要】 为了优化新型柔性注压锚杆设计,分析其各主要设计参数对锚固系统的影响,简单介绍了该新型锚杆的工作特点,推导了锚杆体径向应力的数学公式,并采用有限元的方法分析了不同的设计参数对锚固系统的径向应力及应力集中的影响.结果表明,有限元的计算结果与推导出的数学表达式的计算结果相近,建立的模型比较正确,有限元分析的各主要设计参数对锚固系统影响的结果对该新型锚杆的试验,设计和使用具有重要的参考价值.更多还原

【Abstract】 Aiming at the optimum design of flexible pressurized anchor,we analyzed the effect of all parameters on the anchoring system,introduced the characteristics of this new style bolt,deduced the mathematics model of radial stress of the bolt.In addition,the effect of different parameters on radial stress and stress concentration was analyzed by using the finite element method.The result of finite element analysis is similar to the result calculated by the deduced mathematics model,showing that the deduced model is correct and the parameters are significcant for the test,design,use of the new bolt.更多还原