| 锦屏一级拱坝左岸基础处理加固措施研究 |
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| 引用本文： | 牟高翔,陈岗,刘荣丽.锦屏一级拱坝左岸基础处理加固措施研究[J].水电站设计,2009,25(2):7-12. |
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| 作者姓名： | 牟高翔 陈岗 刘荣丽 |
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| 作者单位： | 1. 中国水电顾问集团成都勘测设计研究院,四川,成都,610072
2. 中国水电工程顾问集团公司,北京,100011 |
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| 摘 要： | 锦屏一级拱坝坝址区工程地质条件十分复杂，存在f2、f5、f8等断层、层间挤压带、煌斑岩脉X及一系列规模不等的卸荷张开裂缝或深部裂缝等不良地质构造，需对这些地质缺陷进行处理.通过现场勘测试验及分析研究，对拱坝左岸基础采取固结灌浆和混凝土置换相结合的处理方案。计算分析表明，通过利用混凝土垫座、抗力体固结灌浆、对断层及煌斑岩脉进行混凝土网格置换以及采用抗剪传力洞等措施，提高基础承载能力，可以满足拱坝设计的要求。
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| 关 键 词： | 拱坝 基础处理 有限单元法 锦屏一级水电站 |
Study on Jinping I Arch Dam Left Abutment Foundation Treatment |
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| MOU Gao-xiang,CHEN Gang,LIU Rong-li.Study on Jinping I Arch Dam Left Abutment Foundation Treatment[J].Design of Hydroelectric Power Station,2009,25(2):7-12. |
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| Authors: | MOU Gao-xiang CHEN Gang LIU Rong-li |
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| Affiliation: | 1.HYROCHINA CHENGDU ENGINEERING CORPORATLON;Chengdu 610072;China;2.HYROCHINA CORPORATION;Beijing 100011;China |
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| Abstract: | Engineering geological conditions at Jinping Ⅰ damsite area are rather complicated. There are fault zones f2, f5 and f8, crushed zone between the layers, lamprophyre veins, various scale relaxation fissures or deep - seated fissures. Through site investigation and tests, it is decided that the arch dam left abutment foundation is to be treated by cosolidation grouting and concrete replacement. The computation and analysis indicate that by use of concrete cushions, the resisting rock mass consolidation grouting, the lamprophre veins treated by concrete grids and shear resisting concrete plugs, the improved foundation can satisfy the load -bearing capacity requirements for the arch dam design. |
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| Keywords: | arch dam foundation treatment finite element method Jinping I Hydropower Station |
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