Settlement behavior and inverse prediction of post-construction settlement of high filled loess embankment
GE Miaomiao1,LI Ning1,2,ZHANG Wei3,ZHENG Jianguo3,ZHU Caihui1
(Institute of Geotechnical Engineering,Xi?an University of Technology,Xi?an,Shaanxi 710048,China;2. School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou,Gansu 730070,China;3. China Jikan Research Institute of Engineering
Investigation and Design Co.,Ltd.,Xi?an,Shaanxi 710043,China)
Abstract:In order to reveal the settlement behaviors of high filled embankment and to predict the post-construction settlement,the long-term in-situ monitoring data of a certain high filled loess embankment were analyzed with the FEM computation and the method of layered iteration to inversely predict the post-construction settlement. The results show that the settlement of the embankment itself is the main part of the total settlement and accounts for 63% of the total settlement,while the original ground settlement accounts for 37%. The construction settlement is mainly caused by the compression of the pore air and exhaust consolidation. The uneven foundation and different heights are the main reasons of differential surface settlement.
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