Study on Optimized Design of High Embankment for Red-bed Soft Rock Slope in Western YunnanChinese Full Text

DING Jingsheng;LUO Qingjing;WU Guoxiong;National and Local Joint Engineering Laboratory of Traffic Civil Engineering Materials,Chongqing Jiaotong University;School of Civil Engineering,＆ Architecture,Chongqing Jiaotong University;

Abstract: Taking the high embankment slope in the K38 + 530 + 635 Section of Shidian-Mengding Highway in Yunnan as an example,and using FEM numerical analysis together with strength reduction theory,the settlement deformation of the subgrade designed originally and its stability were analyzed. The results of numerical calculation showed that such subgrade had the stability factor not meet the minimum value specified in the standard. With the same calculation method,after alignment adjustment and slope optimization,the stability of subgrade slope with and without geogrid was calculated. The study results show that the failure of high embankment for slope mainly presents that,where the instable slope reaches a critical state,the filler of slope crest in contact with the ground surface appears plastic deformation at first; where the embankment has insufficient stability,and various technical measures should be taken by every reasonable effort. It may be referred to by the design and construction of high embankment for slope in mountainous area.

Keywords：

Red-bed soft rock; high embankment for slope; optimized design of slope; strength reduction finite element method,slope stability;

DOI：
10.13379/j.issn.1003-8825.2014.04.25
Series：
Subject：
Classification Code：
U416.1

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Study on Optimized Design of High Embankment for Red-bed Soft Rock Slope in Western YunnanChinese Full Text

DING Jingsheng;LUO Qingjing;WU Guoxiong;National and Local Joint Engineering Laboratory of Traffic Civil Engineering Materials,Chongqing Jiaotong University;School of Civil Engineering,＆ Architecture,Chongqing Jiaotong University;

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