黄土边坡坡面降雨冲刷破坏机制模拟试验  

Simulation experiment on loess slope rainfall erosion mechanism

作　　者：王鲜[1] 倪万魁[1] 刘海松[1] 武鹏[1] 袁志辉[1] 

机构地区：[1]长安大学地质工程与测绘学院,陕西西安710054

出　　处：《中国地质灾害与防治学报》2015年第3期41-45,共5页The Chinese Journal of Geological Hazard and Control

基　　金：陕西省科技统筹创新计划项目(2012KTDZD03-03)

摘　　要：针对工程建设中黄土边坡的四种不同坡比,通过室内模拟降雨的边坡冲刷试验,再现了降雨对黄土边坡坡面冲刷侵蚀的全过程,分析了坡度对黄土边坡降雨冲刷时坡面径流量和冲蚀含泥量的变化规律,在此基础上,研究了强降雨条件下裸露黄土边坡坡面冲刷侵蚀破坏的机制,包括降雨冲击机制、吸水软化机制和面沟切割机制。Aiming at the four kinds of loess slope in engineering construction,through the laboratory simulation test,reproduction the process of rainfall erosion on loess slope,analysis the variation law of loess slope on the runoff and mud content. On the basis of this,researched the mechanism of bare loess slope surface scouring erosion under the conditions of heavy rainfall,Including water rainfall impact mechanism,soils softening mechanism and groove cutting mechanism.

关 键 词：黄土边坡 降雨冲刷 破坏机制 模拟试验 

分 类 号：P642[天文地球—工程地质学]