Journal Published Online: 08 May 2019
Volume 48, Issue 6

Sensitivity Analysis of Distress Influence Factors on Steel-Plastic Compound Reinforced Retaining Wall

CODEN: JTEVAB

Abstract

Based on the distress survey of the existing reinforced retaining wall in Harbin, this article summarizes the main forms of distresses. Taking the section with typical distresses as an example, the influences of fill properties, fill void, ribbon fracture, seepage, traffic load, and other factors on the horizontal deflection and axial force were analyzed by the finite element (FE) method. Causes of distresses of the reinforced retaining wall were systematically studied. Results showed that soil pressure, traffic load, seepage, and the combined action of many other factors are the main causes of retaining wall distresses. The sensitivity factors of horizontal displacement of a reinforced retaining wall are the cohesion and internal friction angle of filling soil. Moisture caused essentially by pavement cracks and seepage can result in the decrease of cohesion and internal friction angle, which are the important factors of outward-dipping deformation. Ribbon fracture, filling soil void, and traffic overload are the important factors leading to horizontal deformation of a retaining wall. According to the orthogonal experiment design, cohesion is the most significant factor for the horizontal deformation of a retaining wall, followed by the internal friction angle; the elastic modulus of foundation and the rest of the factors are not significant, which is consistent with the simulation result of the range analysis. The FE models show good predictability and are well validated by field tests and the orthogonal experiment. These models appear to work for similar reinforced retaining walls.

Author Information

Zheng, Bin-Shuang
School of Transportation, Southeast University, Nanjing, China
Huang, Xiao-Ming
School of Transportation, Southeast University, Nanjing, China
Zhao, Run-Min
School of Transportation, Southeast University, Nanjing, China
Chen, Jia-Ying
School of Transportation, Southeast University, Nanjing, China
Zhang, Wei-Guang
School of Transportation, Southeast University, Nanjing, China
Yu, Tian-Lai
School of Civil Engineering, Northeast Forestry University, Harbin, China
Pages: 20
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JTE20180632
ISSN: 0090-3973
DOI: 10.1520/JTE20180632