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| RESARCH ON SEVERAL CRITICAL PROBLEMS OF PROTECTION EMBANKMENT FOR RESREVIOR BANK OF THE THREE GORGES PROGECT |
| Liu Chuanshun',Luo Fangxiang²,Liu Zhical?,Huang Zhanfeng |
| ('Key State Laboratory of Water Resowree and Hyuropower Engineering Scinces,Wuhan Umiveriy, Wuhan 430072 China) (Centra/South Design and Research Institute for Hydroelectric Project, Changsha 410014 China) |
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Abstract Protection embankments are widespreadly constructed in the Three Gorges reservoir to protect the bank from sliding failures. The reservoir operation is controlled by flood prevention demanding,and the reservoir level must be descended before flood season. The suitable structures of protection embankments are proposed after analyzing the reservoir operation,land configuration and foundation structure. Stability ofprotection embankments and its response to the reservoir drawdown are studied by seepage analysis in transient conditions with finite element method coupled with limit equilibrium method.
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2003, Vol. 22 
