摘要
深厚软基建坝的关键技术问题是解决坝体、坝基变形,通过采取工程处理措施使其控制在不危害大坝安全的范围内是设计处理的主要目的。麻栗坝水库第三系含砾砂土埋藏超过500m,覆盖层全部处理既没有必要亦不可能,设计部门根据工程特点提出利用坝体分三期加载来减小和消散变形,试图通过物理模型比为200的离心模拟试验来验证设计方案的合理性,试验结果表明设计考虑的工程措施可以起到减小变形的作用。
The key technology on deep and soft clay substratum is solving the deformation of dam body and dam base. The third series of Maliba Reservoir contain sand which has paste soil in the middle is buried in the earth of more than 500m. On the basis of the engineering characteristics, the institute of design has put forward to reduce and dissipate deformation with add load in the three separate phases on dam body. Using centrifugal model of physical model proportion 200, they try to test and verify that the plan of design is reasonable. Finally, based on the results from the experiment,it is presented that the engineering measure can rduce the deformation of dam bod and dam base.
出处
《应用基础与工程科学学报》
EI
CSCD
2004年第1期80-85,共6页
Journal of Basic Science and Engineering
关键词
变形
深厚软基
离心模型
麻栗坝水库
大坝
变形协调
deformation
deep and soft clay substratum
centrifugal model
Maliba Reservoir
