基于CEM的加锚节理岩体动力学算法研究  

Study on anchoring jointed rock mass dynamics algorithm based on CEM

作　　者：张石虎 傅少君[2,3] 张玮鹏[4] ZHANG Shihu;FU Shaojun;ZHANG Weipeng(Yangtze River Survey Planning and Design Research Co.,Ltd.,Wuhan 430010,China;School of Civil and Architectural Engineering,Wuhan University,Wuhan 430072,China;Shaanxi Key Laboratory of Safety and Durability of Concrete Structures,Xi'an 710123,China;Yangtze River Geotechnical Engineering Corporation(Wuhan),Wuhan 430010,China)

机构地区：[1]长江勘测规划设计研究有限责任公司,湖北武汉430010 [2]武汉大学土木建筑工程学院,湖北武汉430072 [3]陕西省混凝土结构安全与耐久性重点实验室,陕西西安710123 [4]长江岩土工程总公司(武汉),湖北武汉430010

出　　处：《水利建设与管理》2019年第12期21-26,31,共7页Water Conservancy Construction and Management

基　　金：国家重点研发计划(2017YFC1501206)

摘　　要：复合单元法(CEM)是一种准确和快速的数值模拟方法,能够实现模型中结构面和加固措施的快速模拟,在静力学方面取得了大量研究成果。但是,动力学计算方面还未实现对加锚节理岩体动力学计算,针对此问题,本文进一步发展了复合单元法,提出了加锚节理岩体复合单元法动力学算法,并首次将粘弹性边界在复合单元上进行了应用,建立了惯性力、阻尼力、动力荷载及弹性力作用下的复合单元动力系统的控制方程组,编制了相应程序,通过算例证明了算法的合理性,为加锚节理岩体的动力学计算研究提供了一个新的思路。Compound element method(CEM)is an accurate and fast numerical simulation method,which can realize the rapid simulation of structural plane and reinforcement measures in the model.A lot of research achievements are obtained in the aspect of dynamics calculation.The anchoring jointed rock mass dynamics calculation is not realized in the aspect of dynamics calculation.The compound element method is proposed to add anchoring jointed rock dynamics algorithm compound element method aiming at the problem in the paper.The viscoelastic boundary model has been applied on the composite unit for the first time,the control equations of cmound unit power system under the inertia force,damping force,dynamic load and elastic force actions are established.Corresponding program are prepared.The rationality of the algorithm is proved through the example,thereby providing a new train of thought for studying anchoring jointed rock mass dynamics algorithm.

关 键 词：复合单元法(CEM) 加锚节理岩体 动力学算法 

分 类 号：TV13[水利工程—水力学及河流动力学]