摘要
降雨入渗是非饱和黄土边坡失稳的主要诱发因素,滑坡与降雨有着密切的关系。黄土边坡稳定性问题越来越引起岩土工程界的重视,降雨对边坡的稳定性影响的研究还不尽完善。本文浅析了非饱和黄土边坡雨水入渗及稳定性研究的现状,均为某一实例边坡,尚缺乏对边坡问题的系统研究。基于此,本文在前人的基础上研究了坡高、坡度、干密度、含水量等因素影响下黄土边坡内水分场的分布规律,而且进一步对不同因素影响下的黄土边坡的安全系数进行了计算分析。
Landslide is closely related to rainfall,and for unsaturated soil slope the rain infiltration is the most important one that results in landslide.The stability of loess slope has aroused more and more attention with the development of the loess plateau area.But the study on effect of loess slope stability under rainfall is not so perfect.In this paper the status of studies on rain infiltration and stability of loess slope are analyzed which are all actual slopes,and there is no systematic research.The law of water-field distribution is analyzed theoretically as well under the influence of different factors such as the height of the slope,the gradient of the slope,dry-density,water content,and then calculate the stability of loess slope influenced by different factors.
出处
《杨凌职业技术学院学报》
2011年第4期4-6,共3页
Journal of Yangling Vocational & Technical College
关键词
黄土
非饱和土
边坡
降雨入渗
水分场
边坡稳定
loess
unsaturated soil
slope
rain infiltration
water field
slope stability analysis
