摘要
以在建某高速公路拓宽段地质资料为背景,通过通用有限元程序PLAXIS,对拓宽工程中新填路堤下卧土体采用CFG桩复合地基处理的效果进行了数值模拟。分析结果表明,拓宽新路基采用CFG桩复合地基处理能较好地解决不均匀沉降问题,能避免路面结构性破坏。
Based on the geologic data of a constructing expressway,for its widening engineering,the improvement effect of new and old road foundations with composite foundation method is simulated numerically by popular FEM program-PLAXIS.Result shows that the subgrade treatment by CFG pile composite foundation will produce less differential settlement,to avoid pavement structure failure.
出处
《公路工程》
北大核心
2013年第4期246-249,272,共5页
Highway Engineering
关键词
拓宽
路基处理
数值分析
沉降坡差
widening
subgrade treatment
numerical analysis
difference settlement
