| 金沙江某高拱坝坝肩变形稳定计算分析 |
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| 引用本文： | 罗选红.金沙江某高拱坝坝肩变形稳定计算分析[J].水文地质工程地质,2012,39(3):70-74. |
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| 作者姓名： | 罗选红 |
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| 作者单位： | 中铁第一勘察设计院集团有限公司,西安,710054 |
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| 摘 要： | 为了论证和评价金沙江拟建某水电站高拱坝坝肩岩体的变形稳定性,应用有限差分程序FLAC3D对坝肩岩体在天然状态和荷载后的应力、变形和破坏的发展特征模拟研究,分析了坝肩岩体在正常工程荷载下的变形特征及超载状态下变形破坏特征,结果表明坝肩岩体在正常工程荷载下处于稳定状态,得到了坝肩岩体在超载条件下的变形破坏机制,并评价了坝肩岩体的整体稳定安全度和超载能力.
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| 关 键 词： | 坝肩岩体 变形稳定分析 稳定安全度 FLAC3 |
An analysis of deformation and stability of a high arch dam abutment of the Jinshajiang River |
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| LUO Xuan-hong.An analysis of deformation and stability of a high arch dam abutment of the Jinshajiang River[J].Hydrogeology and Engineering Geology,2012,39(3):70-74. |
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| Authors: | LUO Xuan-hong |
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| Affiliation: | LUO Xuan-hong(China Railway First Survey and Design Institute Group,Xi’an 710054,China) |
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| Abstract: | In order to demonstrate and evaluate the deformation stability of rock mass for the arch dam abutment of a hydropower station of the Jinshajiang River,FLAC3D numerical simulation was conducted to study stress and deformation-failure features of the rock mass of dam abutment under the condition of excavation,designed load and overload,and to evaluate its stability and overloading capacity.The test results show that the rock mass of dam abutment under the condition of designed load is in a stable state.The conclusion was drawn that there are sufficient safety storage in the dam abutment rock mass because its safety degree under normal case and suitable deformation are 2 and 6,respectively. |
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| Keywords: | dam-abutment rock deformation-stability analysis stability degree of safety FLAC3D |
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