CAJ | 학술논문

对离散元动力计算方法的理论基础进行了探索,主要是离散元动力计算的实现过程,边界条件和动力荷载的输入问题.在此基础上以某大型水电工程的地下厂房为例,计算在静力和地震荷载作用下,围岩的变形破坏情况,并监测了岩体不同时间速度和位移的变化情况.计算方法与成果可以为地下厂房的抗震工程设计提供指导.
대리산원동력계산방법적이론기출진행료탐색,주요시리산원동력계산적실현과정,변계조건화동력하재적수입문제.재차기출상이모대형수전공정적지하엄방위례,계산재정력화지진하재작용하,위암적변형파배정황,병감측료암체불동시간속도화위이적변화정황.계산방법여성과가이위지하엄방적항진공정설계제공지도.
The theory foundation of discrete element method (DEM) is studied in this paper firstly. Dynamic discrete element calculation principle and method, dynamic loading input and boundary conditions are introduced and discussed before application. Rock mass stability under earthquake load by means of a large hydropower underground powerhouse cavern is calculated then. The displacements and velocities of rock mass around powerhouse cavern are monitored. And the result shows that DEM can be used to solve structure-controlled failure under dynamic load. The method and idea can provide guidance for underground cavern anti-earthquake design.