A finite difference soil-structure interaction study of a section of the Bonneville Navigation Lock buttress diaphragm wall utilizing pressuremeter test results

Abstract

LocK Buttress Diaphragm Wal 1 Uti I izing Pressuremeter Test Results. APPROVED BY MEMBERS OF THE THESIS COMMITTEE:M.M. Chairman . rvif'lH~esonThe P-y curve, used in current practice as an efficient I ine-load vs. soi I displacement model for input into the finite difference method of laterally loaded pi le ana I ys is, is extended in this study for use with The results indicate that preloading wi 11 reduce wall deflections by at least 4-fold, but that wal I cracKing can potential Jy double deflections. Safety factors against passive soi I fai Jure were determined to be about 5 at anchor pre load, and more than 40 after ful I excavation.