连续降雨对有填平区的斜坡路堤边坡稳定性影响分析  

Analysis of the Influence of Continuous Rainfall on the Embankment Slope Stability of Slopes with Filling Areas

作　　者：吴宇航 WU Yuhang(Guangdong Hualu Traffic Technology Co.,Ltd.,Guangzhou,Guangdong Province,510000 China)

机构地区：[1]广东华路交通科技有限公司,广东广州510000

出　　处：《大众科学》2024年第11期76-78,共3页China Public Science

基　　金：广东省交通集团有限公司科技项目(项目编号:JT2023YB18)。

摘　　要：山区高速公路填平区在施工期不受重视,容易出现弃土填筑夯实度不足、排水设施不完善等问题。在连续降雨过程中,成为下侧斜坡路堤边坡的安全隐患。以广东省粤北地区某上侧有填平区的五级斜坡路堤边坡为例,利用GeoStudio软件的SEEP/W和SLOPE/W模块,对上侧有填平区的斜坡路堤边坡在连续降雨条件下的稳定性进行了计算分析。研究结果表明:降雨入渗是影响斜坡路堤边坡稳定性的主要因素,上侧填平区因渗透性较大,容易在与填土的交界处形成强孔隙水压力场,对下方斜坡路堤边坡稳定性产生不利影响。The filling area of a mountain highway is not paid attention to during the construction period and is prone to problems such as the insufficient compaction of abandoned soil filling and inadequate drainage facilities,which becomes a safety hazard for the embankment slope of lower slopes in the process of continuous rainfall.The study takes the embankment slop of a Class-V slope with the filling area on the upper side in northern Guangdong Province as an example,and uses the SEEP/W and SLOPE/W modules of GeoStudio software to calculate and analyze the stability of the embankment slope of the slope with the filling area on the upper side under the conditions of continuous rainfall.Research results show that rainfall infiltration is the main factor affecting the embankment slope stability of slopes,and that the filling area on the upper side is prone to form a strong pore water pressure field at the junction with filling soil due to its large permeability,which has an adverse affect on the embankment slope stability of lower slopes.

关 键 词：填平区 斜坡路堤边坡 GeoStudio 连续降雨 稳定性分析 

分 类 号：U416.12[交通运输工程—道路与铁道工程]