RESEARCH ON THE SUBGRADE EMBANKMENTS ENGINEERING ON SLOPED WEAK GROUND
JIANG Xin1, QIU Yan-jun1, WEI Yong-xing2
1School of Civil Engineering, Southwest Jiaotong University; 2Department of Geology & roadbed, the Second Design and Survey Institution of China Railway
Abstract：Research purpose: To study the behavior of subgrade embankments on sloped weak ground in southwestern mountainous regions.
Research method: Based on literature review of a large number of relevant domestic and international research findings, the research developments were investigated and summarized in detail, including the define of sloped weak ground, the behavior of stress and deformation of subgrade embankments on sloped weak ground, the stability evaluate methods of subgrade embankments on sloped weak ground and the test research and engineering practice of subgrade embankments on sloped weak ground. Furthermore, research efforts are needed to analyze the failure patterns, the influence to upper structures, the selection of reasonable stability failure criterion and engineering measures.
Research conclusion: To better understand of the structural responses and distress mechanism of subgrade embankments on sloped weak ground is necessary to enhance quality.
2006, Vol. 23 
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