降雨对滑坡的激发作用实验研究——以蒋家沟流域滑坡堆积坡地为例

Study on Inspiring Effect of Landslide Experiment on Condition of Rainfall ——Example of slope piled by old landslide in Jiangjiagou valley

蒋家沟部分滑坡是在老滑坡的基础上 ,经过后期条件改变如坡脚流水切割、降雨入渗激发而再次发生规模不等和形式不一的滑动。选择蒋家沟流域这一相对稳定的老滑坡体 ,通过人工降雨激发促使其二次滑动 ,观测滑坡滑移过程 ,分析描述实验过程中坡面出现的各种滑、溜、崩等现象 ,并进行部分有关的土力学实验 。

In Jiang jiagou,most landslides was recoursed on old ones with lots of dimensions and forms on conditions of the flows that incised the feet and the rainfalls that infiltrated. We chose a relatively stabilized slope and inspired it to re slide by artificial rainfall and observed the process,analysed and described the phenomena such as slide, glide and collapse that happened in the experiment. Some indoors experiments about soil mechanics were processed and some significant conclusions and optional parameter were acquired.