摘要
为增强新旧路基衔接整体性,减少新旧路基不均匀沉降,增强路基强度和稳定性,结合华中地区某快速通道改扩建工程,采用铺设钢塑格栅方法来控制新旧路基不均匀沉降。建立有限元计算模型,分析不同位置铺设双层钢塑格栅对不均匀沉降的影响,选取最优方案实施后对工程进行工后沉降监测。结果表明:在填方高度较低时,双层铺设钢塑格栅可以有效改善新旧路基的不均匀沉降。
To enhance the joint integrity between new and existing subgrades,reduce differential settlement,and improve subgrade strength and stability,the expressway reconstruction and expansion project in East China adopted the method of installing steel-plastic geogrid to control differential settlement.A finite element calculation model was set up to analyze the influence of double-layer steel-plastic geogrid at different positions on differential settlement.After implementation of the optimal solution,post-construction settlement monitoring was conducted for the project.The results show that,when the fill height is relatively lower,installation of double-layer steel-plastic geogrid can effectively mitigate differential settlement between new and existing subgrades.
作者
李胜
吴用
周敏
黄威然
LI Sheng;WU Yong;ZHOU Min;HUANG Weiran(CCCC Third Highway Engineering Third Engineering Co.,Ltd.,Wuhan 430000,China;Huangshi Zhongxing Engineering Management Co.,Ltd.,Huangshi 435000,Hubei,China;Huangshi Highway Development Center of Hubei Province,Huangshi 435000,Hubei,China;CCCC Third Highway Engineering Hebei Xiong'an Design&Consulting Co.,Ltd.,Beijing 101304,China)
出处
《路基工程》
2025年第6期100-103,共4页
Subgrade Engineering
基金
中交第三公路工程局有限公司科技项目(2024-16)。
关键词
改扩建路基
钢塑格栅
双层铺设
沉降监测
工后沉降
衔接整体性
reconstructed&expanded subgrade
steel-plastic geogrid
double-layer installation
settlement monitoring
post-construction settlement
joint integrity
