摘要
为了控制思南县沙坝水库坝体变形,研究根据该工程的实际情况,通过在坝坡建造压坡平台的方法提高面板堆石坝的稳定性,并利用有限元分析压坡的几何参数以及堆石的物理力学参数对坝体相关应力与安全系数的影响,进而得出平台和堆石的最佳参数设置。结果表明,将压坡平台的高度和宽度设置为大坝高度的1/2,堆石内摩擦角和黏聚力分别设置为40°和30kPa时,能在节省施工成本的同时保证坝体的安全性,且大坝堆石的密度略低于压坡堆石密度。
In order to control the deformation of the dam body of Shaba reservoir in Sinan county,according to the actual situation of the project,the stability of a faced rockfill dam is improved by building a compression platform on the dam slope.The influence of the geometric parameters of compression slope and the physical and mechanical parameters of rockfill on the related stress and safety factor of the dam body was analyzed by using the finite element method.The results show that the width and height of the platform is set to half of the dam height,and the internal friction angle and cohesion of the rockfill are set to 40°and 30kPa respectively,the construction cost can be saved and the safety of the dam body can be ensured,and the density of the dam rockfill is slightly lower than that of the compressive slope.
作者
施力文
SHI li-wen(Guizhou Qianshui Engineering Supervision Co.Ltd.,Guiyang 550002,China)
出处
《水利科技与经济》
2025年第9期151-156,共6页
Water Conservancy Science and Technology and Economy
关键词
面板堆石
变形控制
施工技术
有限元分析
压坡平台
panel rockfill
deformation control
construction technology
finite element analysis
slope platform
