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结义复合堆积体组成特征及其成因分析 |
陈强1,聂德新1,王维早2,李树武3
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1. 成都理工大学,工程地质研究所,四川,成都,610059 2. 石家庄经济学院,工程学院,河北,石家庄,050031 3. 西北电力勘测设计研究院,地质所,甘肃,兰州,730050
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摘要: |
调查和分析了澜沧江乌弄龙水电站坝址区左岸高程21935m~22225m范围内分布的结义堆积体的物质组成表明,该堆积体为崩坡积堆积物、泥石流堆积物和阶地残留的砂卵石共同组成的复合堆积体,且自上至下呈多元结构特征.阐述了该复合堆积体的成因.并认为堆积体下伏基岩台座的支撑和阻滑作用,使其具有较高的稳定性. |
关键词: 物质组成,结构特征,成因分析,复合堆积体,稳定性 |
DOI: |
分类号:P642 |
基金项目:国家自然科学基金资助项目(40372127) |
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Mass components characteristics and genetic analysis of Jieyi large-scale compound accumulation bodies |
CHEN Qiang1,NIE De-xing1,WANG Wei-zao2,LI Shu-wu3
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1. Institute of Engineering Geology, Chengdu University of Technology, Chengdu 610059; 2. Engineering College of Shijiazhuang University of Economics, Shijiazhuang 050031, China ; 3. Institute of Geology of Northwest Hydroelectric Investigation and Design Institute of SPC, Lanzhou 730050, China
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Abstract: |
A large-scale accumulation body,named Jieyi compound accumulation body,is located in the left bank of Wunonglong Hydropower Station from elevation of 1,935 m to 2,225 m in Lancang River.Investigation and analysis results of the compound accumulation body show that it consists of collapse accumulation,debris flow accumulation and grait accumulation remaining in fluvial terrace with a multivariate structure from top to bottom.After expatiation of its genetic analysis,it can be seen that the compound accumulation body is stably supported by the rock foundation foundation below. |
Key words: mass component,structure feature,genetic analysis,compound accumulation body,stability |