Use of Lime Stabilized Native Clayey Soils to Embed Large Diameter Steel Pipe
A large diameter steel pipe was tested under static soil loads at the Center for Underground Infrastructure Research and Education (CUIRE) laboratory at UT Arlington.The 6-m,1830-mm nominal diameter steel pipe was placed inside a concrete load cell and backfilled with lime stabilized native clay soils obtained from the Integrated Pipeline (IPL) project site in Texas.The properties of untreated and lime stabilized clayey backfill soil was first determined through the laboratory tests.Lime stabilized soil was used as bedding and embedment up to springline of the pipe.Untreated clayey backfill soil was placed above the springline up to one foot above the crown of the pipe.8 ft of pea gravel was placed above untreated soil to simulate dead load of cover.Vertical loads at crown and bottom of the pipe and horizontal loads at the springline of the pipe were recorded.Also,changes in vertical as well as horizontal diameters of the pipe were measured during and after installation of the pipe.The purpose of the test was to study interaction of the large diameter steel pipe with lime treated native backfill and calibrate the related Finite Element Model (FEM).This paper describes details of the test and presents the obtained results obtained.Based on the results of this and other tests and related Finite Element Models will be calibrated.
Jwala Raj Sharma SM.ASCE,Mohammad Najafi F.ASCE,Abhay Jain SM.ASCE David Marshall M.ASCE
Graduate Research Assistant, Center for Underground Infrastructure Research and Education(CUIRE) Director, Construction & Infrastructure Engineering & Management, CUIRE Director, Department of Civi Faculty Research Associate, CUIRE Engineering Services Director, Tarrant Regional Water District, 808 East Northside Drive, Fort Worth
国际会议
北京
英文
654-664
2012-10-14（万方平台首次上网日期，不代表论文的发表时间）