| 某水电站坝区峨眉山玄武岩岩体风化特征 |
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| 引用本文： | 魏云杰,许模,陶连金,康小兵.某水电站坝区峨眉山玄武岩岩体风化特征[J].北京工业大学学报,2009,35(1):53-57. |
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| 作者姓名： | 魏云杰 许模 陶连金 康小兵 |
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| 作者单位： | 北京工业大学城市与工程安全减灾省部共建教育部重点实验室,北京,100124;成都理工大学地质灾害与地质环境保护国家重点实验室,成都,610059 |
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| 摘 要： | 大坝建基面的选择取决于岩体风化程度.玄武岩风化作用受岩体结构控制,岩体的风化首先是沿各类结构面开始,逐渐向岩体内部发展.以西南某水电站为例,通过对某坝址区峨眉山玄武岩风化的表观特征、矿物特征、化学特征进行了研究,结果表明:玄武岩的风化以物理风化作用为主,化学风化作用不明显;断层及层间、层内错动带对玄武岩的化学风化作用无显著影响,现场判定岩体风化界限应重点依据岩体的表观特征,从而为风化界限的现场判定提供了依据.
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| 关 键 词： | 峨眉山玄武岩 岩体风化 矿物特征 化学特征 |
Weathering Characteristics of E'mei Mountain Basalts in a Certain Hydropower Project,Southwester Area |
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| WEI Yun-jie,XU Mo,TAO Lian-jin,KANG Xiao-bing.Weathering Characteristics of E'mei Mountain Basalts in a Certain Hydropower Project,Southwester Area[J].Journal of Beijing Polytechnic University,2009,35(1):53-57. |
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| Authors: | WEI Yun-jie XU Mo TAO Lian-jin KANG Xiao-bing |
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| Affiliation: | 1.The Key Laboratory of Urban Security and Disaster Engineering;Ministry of Education;Beijing University of Technology;Beijing 100124;China;2.National Laboratory of Geological Hazard Prevention and Geological Environment Protection;Chengdu University of Technology;Chengdu 610069;China |
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| Abstract: | E'mei mountain basalt is one kind of rock mass of hydropower engineering in our country.We determine the surface of dam foundation based on weathering degree of rock mass.Weathering of basalt controlled by rock mass structure,start on surface of various rock mass structures,and developed into interior gradually.Taking one hydropower station of the southwest China an example in this paper,the authors study on the weathering of apparent characteristics,mineral characteristics and chemical characteristics of E... |
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| Keywords: | E'mei mountain basalt rock mass weathering mineral characteristics chemical characteristics |
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