中性点理论 meaning in English
neutral point theory
Examples
- Fist of all , on the basis of the research of agone boffins , this author investigates the interaction mechanism of bolts and rock , and introduces the elastic ? lastic analytical resolution which is consist of the liner structure , the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design . on the basis of coulomb friction model , the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc . marc . finally , combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction , the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts , and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先，在前人研究成果的基础上，对锚杆与围岩的相互作用机理进行研究，利用全长锚固锚杆的中性点理论，从等效均化的角度来考虑锚杆对围岩的加固作用，并推导了在简单荷载作用下，含有衬砌、等效加固后的围岩、原始围岩三者的弹塑性解析解，对工程设计有着重要的参考意义；在数值模拟方面，以考虑锚固围岩满足规则化库仑摩擦模型为基础，利用虚功原理推导了接触问题的有限元方程的计算格式，为开发运用大型商用有限元软件msc . marc提供了理论根据，也形成了本文的理论基础：最后，论文以南水北调东线穿黄隧洞稳定性分析项目为工程实例，利用本文所述的接触问题的摩擦模型理论，对锚杆支护结构的应力场、位移场的变化规律进行了研究，分析了加锚支护对隧洞围岩应力、变形的影响。