Effect of earth reinforcement,soil properties and wall properties on bridge MSE walls

作     者：Zaid MOMANI Eyosias BENEBERU Nur YAZDANI Zaid MOMANI;Eyosias BENEBERU;Nur YAZDANI

作者机构：Department of Civil EngineeringAl-Ahliyya Amman UniversityAmman 19328Jordan Bridgefarmer&AssociatesDallasTX 75234USA Department of Civil EngineeringUniversity of Texas at ArlingtonArlingtonTX 76019USA 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2021年第15卷第5期

页      面：1209-1221页

核心收录：

学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：The study reported in this paper was performed through a grant from the Texas Department of Transportation(TxDOT) 

主　　题：mechanically stabilized earth walls precast concrete panels backfill soil finite element modeling earth reinforcement 

摘      要：Mechanically stabilized earth(MSE)retaining walls are popular for highway bridge *** have precast concrete panels attached to earth *** panels are designed to have some lateral ***,in some cases,excessive movement and even complete dislocation of the panels have been *** this study,3-D numerical modeling involving an existing MSE wall was undertaken to investigate various wall *** effects of pore pressure,soil cohesion,earth reinforcement type and length,breakage/slippage of reinforcement and concrete strength,were *** showed that the wall movement is affected by soil pore pressure and reinforcement integrity and length,and unaffected by concrete *** cohesion has a minor effect,while the movement increased by 13–20 mm for flexible geogrid reinforced walls compared with the steel grid *** steel grid stresses were below yielding,while the geogrid experienced significant stresses without *** reinforcement may be used taking account of slippage resistance and wall *** steel grid is used,non-cohesive soil is recommended to minimize *** soil drainage is important for control of pore pressure.