| 摘要: |
| 建立室内人工边坡的降雨入渗模型,选取坡度为33.7°的细砂边坡,在300 mm/h降雨强度下进行试验.通过孔隙水压力传感器和自制含水率传感器监测试验中含水率、孔隙水压力的变化规律和分布情况及对边坡稳定的影响,分析边坡表层以下4 cm及14 cm深处的含水率、孔隙水压力变化和3个时刻坡体的含水率、孔隙水压力等值线图.分析结果表明,降雨入渗的整个过程中,下部的含水率、孔隙水压力都是最大的;边坡内部靠近底层的区域,其含水率和孔压的变化需考虑趾部及下部水分入渗的影响,因为这些影响会造成该区域的等值线密集. |
| 关键词: 边坡 含水率 孔压 等值线 |
| DOI： |
| 分类号:TV221.2 |
| 基金项目:国家自然科学基金资助项目(51139001,51109139);水利部公益性行业科研专项经费资助项目(201101005) |
|
| Experimental study on artificial rainfall infiltration into slope |
|
ZHANG Lei,GUO Hai-qing,XIE Xing-hua,TAN Ye-fei,XING Xiao-di
|
|
1(1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China;2.College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China;3.Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China)
|
| Abstract: |
|
| Key words: |
