软岩石渣料填筑高土石坝应力变形特性研究  

Research of stress and deformation characteristics of high earth-rock dam filled with soft rock slag

作　　者：陈驰 CHEN Chi(Power China Chongqing Engineering Co.,Ltd.,Chongqing 401120,China)

机构地区：[1]中电建重庆勘测设计研究院有限公司,重庆401120

出　　处：《水利水电技术(中英文)》2024年第S2期364-370,共7页Water Resources and Hydropower Engineering

摘　　要：近年来,人们对筑坝材料的要求已不断放宽,开挖土石渣料、风化料、砾石土、软质岩等经研究处理后均有用于成功填筑大坝的案例。软岩石渣料填筑土石坝,已成为近年来水利水电工程建设领域的热点。根据工程实例,建立相应的非线性有限元分析模型,详细模拟了软岩石渣料填筑高坝情况下大坝分级施工及蓄水过程,计算结果满足一般土石坝应力变形的分布规律,计算值基本合理。同时,结论提出应根据有限元计算结果针对坝体填料采取相应的工程措施、优化设计断面,以提高大坝施工期及运行期的安全性,并为相关工程提供经验参考。In recent years,people's requirements for dam construction materials have been relaxed,and more and more dams directly use excavation slag materials,weathered materials,gravel soil and soft rock to build dams.Soft rock filling earth-rock dam has become a hot spot in the field of water conservancy and hydropower construction in recent years.In this paper,a nonlinear finite element analysis model is established to simulate the process of dam construction and water storage under the condition of high dam filling with soft rock.The calculated result satisfy the distribution law of stress and deformation of general asphalt concrete core dam,the calculated values are basically reasonable.and the overall safety of the dam is high.At the same time,it is concluded that the corresponding engineering measures and optimized design section should be taken according to the finite element calculation result to improve the safety of the dam during construction and operation,and provide reference for related projects.

关 键 词：软岩石渣料 高土石坝 应力 变形 

分 类 号：TV22[水利工程—水工结构工程]