软土地基上分期施工的路堤沉降预测方法(英文)

软土地基上分期施工的路堤沉降预测方法(英文) English Version

Institute of Geotechnical Engineering；Institute of Geotechnical Engineering Southeast University；Nanjing 210096；China；Southeast University；

基金项目: TheresearchissponsoredbyDoctoralProgramFundsofEducationMinistryofChina(No .2 0 0 10 2 86 18)

摘要: 沉降量和沉降速率控制是软土地基上路堤工程设计的关键问题 ,由于固结理论的局限性和参数的不确定性 ,理论预测的精度较低 ,而基于现场实测数据的观测法显示出较高的精度 .本文在Asaoka观测法的基础上 ,发展了一种软土路基上分期施工时路堤沉降预测的方法 ,结合江苏海相软土上的高速公路工程进行了沉降预测分析 .
- 沉降 /
- 路堤 /
- 观测法 /
- 分期施工 /
- 江苏海相软土
Abstract: Themagnitudeandrateofthesettlementarethekeyelementssubjectedtodesignanalysisofembankmentsonsoftground .Theobserva tionalmethodsbasedonfieldmeasurementhaveindicatedthepromisingresultsandbecomeeffectivemethodstopredictthefinalsettlement,while the uncertainties of parameters and the orieslimitsignificantlytheaccuracy of settlementestimation .This paperpresentsanobservationalmethodto predict the settlementperformanceofembankmentswithstageconstructiononsoftgroundbasedonAsaokamethod .Thecasestudiesshowtheac cordanceofthepredictingresults with the fieldmeasured data .Itis alsogiven from the case study that the value of Eu/curatiorangesfrom 5 0to 10 0forJiangsuMarineclayanditsactualcoefficientofconsolidationisalmostoneorderofmagnitudelarger than the laboratory data .
- settlement /
- embankment /
- observationalmethod /
- stage construction /
- Jiangsu Marineclay