摘要
针对膨胀土路基沉降的特点 ,提出按增量法分析瞬时沉降、主固结沉降和胀缩沉降的步骤和方法 ,推导了相应的表达式 .增量法的分析步骤是将路基沉降总过程划分为施工期和使用期两个时间区间 ,再划分为若干时段 ,先分区间逐时段计算各沉降分量的增量 ,然后迭加得到任意时刻的路基总沉降量 .还就具体道路工程实例 ,进行了沉降量的计算和比较 .
Aiming at the characteristics of expansive soil roadbed, the paper proposed the increment method for analyzing transient settlement, main consolidation settlement and expansive contraction settlement, and deduced the corresponding calculation expressions. The analysis approaches of the increment method were: dividing the whole settlement course into two periods, construction period and using period; each period into some time section; calculating the increment of each settlement part within every section in each period; then adding them together to find the total settlement of expansive soil roadbed at any time. A typical road example, calculating the settlement according to the increment method and comparing the calculation settlement with the practical settlement were given.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第1期114-116,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
湖北省自然科学基金资助项目 (2 0 0 1ABB0 2 5 )
