摘要
针对西南地区公路建设中高填石路堤的施工期沉降和工后沉降问题,以工程实际和工程界熟悉的方法为前提,考虑了高填石(高应力水平)下地基的非线性性质和实际的应力路径计算路基沉降;考虑目前碾压技术的进步而采用弹性模型计算填石路堤的变形.两者叠加得总沉降,再由此求得工期沉降和工后沉降.最后与工程的现场实测比较,证明本文方法简单可行,可供同类工程参考和利用.
To solve the problem of the settlement of high rock-filled embankments during and after construction for the roads in Southwest China, the settlement of subgrade was calculated by considering the nonlinear character of the subgrade under high stone fill (high stress level) and its actual stress path, based on the actual situations of engineering and methods known to the engineering circle. An elastic model was used to calculate the deformation of the rock embankment by considering the present improved compaction techniques. The total settlement was obtained by adding the two parts. And then, the settlements during and after construction were calculated. In the end, the good agreement between the computed and the measured values of field tests showed that the proposed approach was simple, feasible and practical.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第2期54-58,共5页
Journal of Hunan University:Natural Sciences
基金
广西自治区交通建设基金资助项目(200202)
关键词
基础沉降
高填石路堤
应力路径
计算方法
foundations-settlement
high rock-filled embankment
stress path
calculation method
