摘要
膨胀土路基的沉降问题关系到路基的稳定性和安全性,以西南地区某膨胀土路基为例,分析了上部附加荷载作用下土层的工后沉降量以及大气影响深度范围内膨胀土的胀缩变形量,根据总沉降量对场内道路进行分区换填处置,以满足沉降的控制标准,有效完成了此地区的膨胀土路基总工后的沉降预测及膨胀土路基病害的控制。
The settlement of expansive soil subgrade relates to the stability and safety of subgrade.Taking an expansive soil subgrade in Southwest of China as an example,the post construction settlement of soil under attached load from top part and the swell-shrink deformation of expansive soil within the range of atmospheric influence depth are analyzed.According to the total settlement,the road in the site should be replaced and filled by different areas to meet the settlement control standard.It has a great reference significance for the total post-construction settlement prediction of expansive soil subgrade and the control to expansive soil subgrade disease.
作者
太俊
张劼
朱涵成
TAI Jun(Central and Southern China Municipal Engineering Design&Research Institute Co.,Ltd.,Wuhan 430010,China)
出处
《长春工程学院学报（自然科学版）》
2021年第1期12-14,19,共4页
Journal of Changchun Institute of Technology：Natural Sciences Edition
关键词
膨胀土路基
沉降量
石灰改良
换填
expansive soil subgrade
settlement
lime treatment
exchanging-fill method
