森林工程2016，Vol.32Issue(6)：89-92,4.
城市道路软土地基沉降变形监测
Settlement Deformation Monitoring of Soft Soil Foundation of Urban Road
摘要
Abstract
The stack preloading consolidation method was always used to conduct soft soil foundation process for urban roads.In order to control the quality and ensure the safety in the construction,it needs to command the execution according to the monitoring data.The foundation deformation monitoring is the most important one in the all monitoring items.Through the real construction cases,it was demonstrated that the settling rate of soft soil foundation was much faster during the loading process and could reach above 50 % of total deposition.In the pre-compression process,the subsidence process curve showed a gradual convergence process.According to the data shown in the two monitoring sections,the preloading time above 10 or 12 months can reach unloading condition.The more thick soft soil,the longer preloading time.Unloading work was conducted when the settling volume of soft soil post-construction,consolidation,and subsidence in consecutive two months was speculated,meanwhile,satisfied the design requirements,which could ensure the engineering quality more effectively.The results of this study can provide scientific foundation for soft soil foundation design and construction in the local region.关键词
城市道路/软土地基/沉降变形/堆载预压期/工后沉降Key words
Urban roads/soft soil foundation/settlement deformation/stack preloading period/post-construction settlement分类
交通工程引用本文复制引用
李彤桐,王丕祥..城市道路软土地基沉降变形监测[J].森林工程,2016,32(6):89-92,4.基金项目
住房和城市建设部科学技术项目(2011-K5-36) （2011-K5-36）
