亭子口碾压混凝土重力坝厂房坝段抗滑稳定分析
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摘要
亭子口水利枢纽工程碾压混凝土重力坝是我国在红层基础上建设的最高重力坝,其大坝基础内存在缓倾下游的软弱夹层,因此深层抗滑稳定问题突出。基于非线性有限元方法,进行了针对厂房坝段不同设计方案、受力模式的分析,进而确定选用厂坝设缝不联合受力的方案。
As the highest gravity dam built on foundation of red bed rock mass in China, the Tingzikou water conservancy project encountered the deep stability against sliding problem at dam foundation due to the existence of downward inclined weak interlayer in dam foundation. Based on the nonlinear finite element method, different design schemes and loading modes of the powerhouse section are analyzed in this paper. As a result, the scheme of slotting without combined work is selected.
As the highest gravity dam built on foundation of red bed rock mass in China, the Tingzikou water conservancy project encountered the deep stability against sliding problem at dam foundation due to the existence of downward inclined weak interlayer in dam foundation. Based on the nonlinear finite element method, different design schemes and loading modes of the powerhouse section are analyzed in this paper. As a result, the scheme of slotting without combined work is selected.
引文
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[2]周建平,钮新强,贾金生.重力坝设计二十年[M].中国水利水电出版社, 2008.
[3]吴余生,高志芹.基于分项系数和并行组合模拟退火算法的重力坝抗滑稳定有限元分析[J].水力发电学报,2009, 28(4):86-91.
[4]陈敏林,佘成学,陈尚法,等.宝珠寺水电站拦河大坝深层抗滑稳定分析[J].武汉大学学报(工学版), 2000, 33(6):34-39.
[5]刘建,冯夏庭,张杰,等.三峡工程左岸厂房坝段深层抗滑稳定的物理模拟[J].岩石力学与工程学报, 2002, 21(7):993-998.
[6]徐家诗,艾持恒.关于坝后式厂房厂坝连接型式的探讨[J].水力发电, 1988(2):11-16.
[7]黄安录.水电站厂坝联合作用的受力特性分析[J].电网与清洁能源, 1995(2):11-15.
[8]吴中如.大坝与坝基安全监控理论和方法及其应用[J].江苏科技信息, 2005(12):1-6.
[9]苏怀智,吴中如,温志萍,等.基于模糊神经网络和遗传算法的大坝安全监控模型[J].水电与抽水蓄能, 2001, 25(1):10-12.