The calculation of shallow and deep slide-resistant stability of dam involving foundation surface and weak structural planes is very complex. On the basis of conventional method for double failure faces, the principle of equal safety coefficient was adopted to derive the nonlinear equations for stability analysis, and an iterative solution was proposed based on the characteristics of these equations. The assumptions in this solution are in line with the general requirements of current specifications and industry designs. Calculation example of a gravity dam verified the feasibility and accuracy of this solution.
Key words
foundation surface /
weak structural plane /
slide-resistant stability /
multiple failure faces /
safety coefficient
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] 祁庆和, 水工建筑物(第三版)[M].北京:中国水利水电出版社, 1997:60-62.(QI Qing-he. Hydraulic Structures(Third Edition)[M]. Beijing: China Water Power Press, 1997: 60-62.(in Chinese))
[2] 潘家铮.建筑物的抗滑稳定和滑坡分析[M].北京:水利出版社, 1980.(PAN Jia-zheng. Slide-resistant Stability and Landslide Analysis of Structures[M]. Beijing: Water Power Press, 1980.(in Chinese))
[3] 彭文明.多滑动面深层抗滑稳定求解方法探讨[J].水电站设计, 2009, (3):1-3.(PENG Wen-ming. Study on Stability against Deep Slide with Multiple Slip Planes[J]. Design of Hydroelectric Power Station, 2009, (3): 1-3.(in Chinese))
[4] 任青文.拱坝坝肩稳定分析中非线性方程组的线性化解法[J].河海大学学报, 1991, 19(3):120-124.(REN Qing-wen. Linearized Solution to the Nonlinear Equations in Stability Analysis for Arch Dam Abutement[J]. Journal of Hohai University, 1991, 19(3):120-124.(in Chinese))
[5] 周建平, 钮新强, 贾金生.重力坝设计二十年[M].北京:中国水利水电出版社, 2008.(ZHOU Jian-ping, NIU Xin-qiang, JIA Jin-sheng. Two Decades of Gravity Dam Design[M]. Beijing: China Water Power Press, 2008.(in Chinese))
[6] 于 沭.向家坝水电站两个坝段坝基深层抗滑稳定分析[D].北京:中国地质大学, 2007.(YU Shu. Deep Slide-resistant Stability of the Foundation of Two Dam Blocks in Xiangjiaba Dam[D]. Beijing: China University of Geosciences, 2007.(in Chinese))
PDF(1029 KB)
