|Table of Contents|

Study on Mechanical Properties of Anchored Retaining Wall Based on Indoor Model Test(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2019年06期
Page:
46-54
Research Field:
Publishing date:

Info

Title:
Study on Mechanical Properties of Anchored Retaining Wall Based on Indoor Model Test
Author(s):
ZHANG Hong-bo1; 2;  CHEN Qi1; 2;  SUN Yu-hai3;  MENG Qing-yu1; 2;  YU Han1; 2;  SONG Xiu-guang1; 2
(1. School of Civil Engineering, Shandong University, Jinan 250061, Shandong, China; 2. Shandong Engineering & Technology Research Center for Subgrade Safety, Jinan 250061, Shandong, China; 3. Shandong Province Communications Planing and Design Institute, Shandong University, Jinan 250014, Shandong, China)
Keywords:
anchored retaining wall;  soil pressure;  pseudo cohesive force;  prestress;  vertical load
PACS:
U411
DOI:
-
Abstract:
In order to study the distribution of soil pressure and wall displacement of anchored retaining wall in non-limit state, the mechanism of anchor retaining wall was analyzed from the view of mechanics. Based on the principle of reinforcement, it was explained that the setting of anchor bolt increased the strength of wall back soil. The indoor model test equipment was designed and a series of laboratory tests with different prestress levels, different vertical loads and their coupling effects were carried out. By analyzing the test data, the variation law of soil pressure resultant and the position of resultant point were obtained. The results show that the anchored retaining wall is affected by lateral restraint of bolt and the peak pressure of the wall back soil appears at the position of anchor. The wall body presents a translational mode(T mode)with a slightly larger displacement at the bottom under applying vertical loads in stages. The wall presents a lateral displacement mode(T mode)with a slightly large bottom displacement. When they are coupled, the wall body presents tilting inward in the translational superposition rotating mode around the wall(T+RB mode), but the displacement is small. The pressure on the wall back soil is between the static soil pressure and the passive soil pressure under the prestress, vertical load and their coupling action and the stress peak value. The research results are of guiding significance to engineering practice.

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Last Update: 2019-11-26