铁道科学与工程学报2017，Vol.14Issue(5)：980-987,8.
路肩式土工格室柔性挡墙受力及变形分析
Analysis of the stress and deformation characteristics of geocell flexible retaining wall for subgrade shoulders
摘要
Abstract
To study the deformation characteristics and mechanical properties of geocell flexible retaining walls for subgrade shoulders, model test and filed test, based on the reconstruction project of highway 205 line in Zichang County of Shaanxi Province, were carried out. The dimensions of the simulation model was 2 m in height, 1 m in thickness, and 1:0.5 in side slope. The lateral earth pressure, foundation pressure and lateral deformation of the geocell flexible retaining walls for subgrade shoulders were obtained by model test and filed test. Foundation pressure increases gradually during the construction progress. After completing construction, foundation pressure reduced slightly. The lateral earth pressure of the same geocell layer is not evenly distributed. The lateral earth pressure in the middle is the largest, the inside is lower, and the outside is the lowest. The lateral earth pressure and deformation exhibit the shape of drum with height and reached the maximum in the middle of wall. Calculating the lateral earth pressure based on the differential element methods better fits the engineering reality.关键词
路肩/土工格室柔性挡墙/现场监测/模型试验Key words
shoulder/geocell flexible retaining wall/filed monitoring/model test分类
交通工程引用本文复制引用
王启龙,杨晓华,晏长根..路肩式土工格室柔性挡墙受力及变形分析[J].铁道科学与工程学报,2017,14(5):980-987,8.基金项目
甘肃省交通建设科技资助项目(214021140310) （214021140310）
