The Seepage Characteristics Analysis for Xieka Concrete Face Rockfill Dam
Xieka concrete face rockfill dam has 45 to 100m overburden layers, which has strong permeability and the superficial layer of the dam foundation has deep silty sand layers. Meanwhile, the weak and strong unloaded zones are deep in horizon in which the fissures are mostly open. Therefore, it is necessary to analysis the seepage characteristics of the dam. On the basis of the engineering geological condition investigation, a three-dimensional finite element model is established, including the geological structure, formation lithology and the main structure of the dam, then the saturated surface, the groundwater contour, the seepage flux and the seepage gradient of the key parts are calculated. Based on these results, the seepage characteristic of the body and base of the dam, as well as the rock mass between banks are analyzed. Whats more, the rationality and effectiveness of the seepage control plans and the seepage stability of the dam are demonstrated and the optimization methods of the impervious curtain are thus put forwards.
Xieka concrete face rockfill dam Finite element method Seepage gradient Seepage field Thick overburden layer
XU Liqun SHEN Zhenzhong TANG Yong
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, China, 210098 Water Construction and Engineering Supervision of Nanjing .Ltd, Nanjing, China, 210001
国际会议
2009 International Forum on Porous Flow and Applications(第十届全国渗流力学学术会议)
武汉
英文
868-871
2009-04-26（万方平台首次上网日期，不代表论文的发表时间）