揭普高速公路某段软基处理及工后沉降分析与评价  

Treatment of a Certain Section of the Soft-soil Subgrade of the Jie-Pu Expressway,and Post-completion Analysis and Evaluation of the Settlement

作　　者：章有德[1] 岳祖润[1] 颜志雄[1] 

机构地区：[1]石家庄铁道学院土木工程分院,河北石家庄050043

出　　处：《国防交通工程与技术》2008年第6期54-58,共5页Traffic Engineering and Technology for National Defence

摘　　要：揭普高速公路K7＋111-K9＋600段软基采用土工格栅、砂垫层及袋装砂井等措施综合处理，根据此段软基近几年的沉降监测数据，采用双曲线法对工后总沉降作出预测。综合考虑监测数据和预测值，利用规范规定的工后总沉降允许值和提出的工后沉降速率允许值对本段软基进行分析和评价，得出路段已基本稳定。The fact that civil engineering grids, sand bedding course, and sand-filled bags are adopted to integratively treat the soft soil subgrade of Section KT＋111-K9＋600 of the Jie-Pu Expressway is presented in the paper. The hyperbola way is used to predict the total post-completion settlement according to the monitored settlement data of the soft soil subgrade in recent years. In the light of the total post-completion permissive value of settlement prescribed in the Specifications, and the permissive value of post-completion settlement rate suggested in the paper, and with the monitored data and the predicted data taken into inte- grative account, the section of soft soil subgrade is analysed and evaluated, upon the basis of which it is concluded that the subgrade is fundamentally stable and firm.

关 键 词：软基 沉降预测 工后沉降速率 评价 

分 类 号：TU471.8[建筑科学—结构工程]