摘要
依托312国道江苏段改扩建工程,通过比奥(Biot)固结理论有限元方法,分析了整个全寿命周期(即老路从开工到正常运营,再到拓宽路堤施工,至15年的运营末)新老路基无台阶拼接工况下,水平位移和竖直变形的互相作用规律。可为类似高等级公路改扩建工程的施工质量控制提供理论借鉴参考。
Base on the conversion and extension project of national highway G312,from the old time of commencement date,to the end of the construction and after normal operation to old road shoulder excavation,then widening embankment construction,and then to the end of construction,finally through the operations until the widening design life,the whole process was analyzed by Biot consolidation theory of plane strain finite element method of new and old roadbed mutual deformation mechanism and deformation law.The results presented reference to other highway extension construction.
作者
朱晓宁
王惠勇
ZHU Xiaoning;WANG Huiyong
出处
《上海公路》
2021年第3期27-31,M0004,共6页
Shanghai Highways
关键词
全寿命周期
新老路基无台阶拼接
沉降变形
水平位移
差异沉降指标
BIOT
life cycle
no step splicing of new and old subgrade
settlement deformation
horizontal displacement
differential settlement index
BIOT
