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黄河中游地质环境背景分析与岩土侵蚀类型划分
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【继电保护论文】 摘要:通过资料分析和野外地质调查,简述了黄河中游主要岩土侵蚀区的基础地质条件,地形地貌特征,阐明了黄河中游岩土侵蚀的主要类型有重力侵蚀、水力侵蚀、风力侵蚀、冻融侵蚀、化学侵蚀、复合侵蚀和人力侵蚀等形式,并对不同侵蚀类型的侵蚀规律进行了研究,重点剖析了岩土侵蚀类型及发展规律及其地质环境背景。根据研究资料分析,认为岩土侵蚀的地质环境是:区域地质构造格局、地层岩性、地层结构及岩石微结构、地形地貌和新构造运动以及人为活动。并且区域构造格局和构造运动控制着岩土侵蚀的发展方向;地层的岩性和结构控制着岩土侵蚀的抗侵蚀能力;地形地貌控制着岩土侵蚀类型的差异性;外动力条件控制着岩土侵蚀的速率和强烈程度。 关键词:黄河;地质环境;岩土侵蚀 Analysis on Erosion Genre of Soil and Rock in the Middle Yellow River and Geological Environment Background CHENG Yan-pEi, SHI Jian-sheng, YE Hao, HOU Hong-bing, WU Li-jie (The Institute of Hydrogeology and Environmental Geology, CAGS, Shijiazhuang 050061,China) Abstract: Based on the field investigation,this paper analyzes the erosion genre of soil and rock in the middle Yellow River and geological environment background. Based on the research, we have gotten that the geological environment of soil and rock's erosion was regional geologic s
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