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Position: Home > Articles > Development Characteristics of Loess Caves on Landslides and Its Formation Mechanism Soil and Water Conservation in China 2014 (4) 60-63+69

滑坡体上黄土洞穴的发育特征及其成因机制

作  者：
李治财;刘高
单  位：
兰州大学土木工程与力学学院;西部灾害与环境力学教育部重点实验室
关键词：
黄土滑坡;黄土洞穴;发育特征;成因机制
摘  要：
采用野外调查和室内分析相结合的方法,以定西常家河滑坡区为研究区,在分析黄土滑坡和黄土洞穴区域分布特征的基础上,研究了黄土滑坡和黄土洞穴的地形地貌分布特征以及滑坡体上黄土洞穴的发育特征。研究结果表明,黄土滑坡和黄土洞穴在分布特征上具有一定的相关性,滑坡体上黄土洞穴发育密度明显增大、发育程度增高。研究了滑坡体上黄土洞穴的成因机制,认为黄土滑坡对黄土洞穴发育的影响主要是通过影响黄土土性、节理裂隙、水力条件以及微地形地貌来实现的。研究成果不仅有助于对黄土洞穴成因、发育特征的认识,而且对黄土滑坡的防治具有重要意义。
译  名：
Development Characteristics of Loess Caves on Landslides and Its Formation Mechanism
作  者：
LI Zhi-cai;LIU Gao;School of Civil Engineering and Mechanics,Lanzhou University;Key Laboratory of Mechanics on Disaster and Environment in Western China,the Ministry of Education of China;
关键词：
loess landslides;;loess cave;;development characteristic;;formation mechanism
摘  要：
The paper studied the distribution characteristics of topography and geomorphology of loess landslides and loess caves and the development characteristics of loess caves on landslides by using the combination method of field survey and laboratory analysis,taking Changjiahe landslides in Dingxi as a studied area,based on analysis of regional distribution characteristics of loess landslides and loess caves. The outcomes show that the distribution characteristics of loess landslides and loess caves have certain relativity. The development density of loess caves on landslides increases obviously and the level of development becomes high. It studies the formation mechanism of loess caves on landslides and considers that the influence of loess landslides to the development of loess caves is mainly achieved by affecting soil property,joint fissures,hydraulic conditions and micro topography. The research outcomes not only help to understand the cause of formation and the development characteristic of loess caves,but also are significance to the prevention and control of loess landslides.

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