scholarly journals Mechanical Behavior of the Reinforced Retaining Wall under Vehicle Load

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Yong Liu ◽  
Zhanyong Yao ◽  
Mingxia Shao ◽  
Hongzhe Liu ◽  
Yulong Zhao
Keyword(s):  
Mechanical Behavior ◽  
Structural Characteristics ◽  
Retaining Wall ◽  
Horizontal Displacement ◽  
Tension Stress ◽  
Soil Pressure ◽  
Maximum Displacement ◽  
Vehicle Load ◽  
Vehicle Position ◽  
Reinforced Retaining Wall

This study primarily aims to explore the mechanical behavior and influence factors of the reinforced retaining wall subject to vehicle loads. Mohr–Coulomb model was adopted to simulate and analyze the structural characteristics of the reinforced retaining wall by the finite element method. Its mechanical behavior was investigated in accordance with relevant theories. The results showed that the vertical and horizontal maximum displacement of the reinforced retaining wall occurs at the wall surface of the retaining wall, the maximum internal soil pressure appears at the middle and lower part of the retaining wall, and the maximum tensile strain of the tension bar acts on the wall rupture surface. As impacted by static vehicle load, the largest settlement is located at the parking position, and the maximum horizontal displacement and wall stability will vary with the vehicle position. Moreover, the closer the vehicle to the reinforcement is, the greater the lateral Earth pressure will be imposed on the upper part of the reinforcement body. With the variation of the vehicle position, the tension stress of the geogrid will vary noticeably.

scholarly journals Mechanical Behavior of the Reinforced Retaining Wall Subjected to Static Load

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Yong Liu ◽  
Zhanyong Yao ◽  
Hongzhe Liu ◽  
Mingxia Shao ◽  
Yulong Zhao
Keyword(s):  
Mechanical Behavior ◽  
Static Load ◽  
Retaining Wall ◽  
Influence Factors ◽  
Horizontal Displacement ◽  
Maximum Tensile Stress ◽  
Wall Panel ◽  
Element Analysis ◽  
Panel Stiffness ◽  
Reinforced Retaining Wall

To study the mechanical behavior and influence factors of the reinforced retaining wall under the static load, numerical simulation of the reinforced retaining wall is conducted by finite element analysis, and its mechanical behavior and influencing methods are studied in accordance with relevant theories. The results showed that the properties of back fill, reinforced spacing, reinforced stiffness, reinforced length, and panel stiffness all affect the mechanical behavior of retaining walls. According to the example calculations of different wall heights, the distribution of panel horizontal displacement and maximum tensile stress are analyzed. The gravel with good gradation has better durability and can reduce the amount of reinforcing steel; with the decrease of the reinforcement spacing, the deformation of the wall panel will become smaller, and the reinforcement effect will be improved; the length of reinforcement is not the longer the better, and the deformation of wall panel can be minimized at the suitable length; the larger the elastic modulus of the wall panel, the smaller the deformation of the wall panel will be.

Behavior of Tire-Geogrid–Reinforced Retaining Wall System under Dynamic Vehicle Load

2020 ◽  
Vol 20 (4) ◽  
pp. 04020017 ◽  
Author(s):  
Lihua Li ◽  
Junchao Yang ◽  
Henglin Xiao ◽  
Lei Zhang ◽  
Zhi Hu ◽  
...  
Keyword(s):  
Retaining Wall ◽  
Vehicle Load ◽  
Reinforced Retaining Wall ◽  
Wall System

scholarly journals Deformation of the Geocell Flexible Reinforced Retaining Wall under Earthquake

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Yalin Zhu ◽  
Kun Tan ◽  
Yin Hong ◽  
Ting Tan ◽  
Manrong Song ◽  
...  
Keyword(s):  
Failure Mechanism ◽  
Retaining Wall ◽  
Horizontal Displacement ◽  
Practical Experience ◽  
Theoretical Research ◽  
Engineering Practice ◽  
Deformation And Failure ◽  
New Type ◽  
Reinforced Retaining Wall ◽  
Better Than

As a new type of reinforced material, geocells are widely used in flexible reinforced retaining wall projects, and a lot of practical experience shows that the geocell retaining wall has a great effect on earthquake resistance, but theoretical research lags behind engineering practice, and the deformation and failure mechanism under earthquake need to be further studied. In this paper, we use the FLAC3D nonlinear, finite-difference method to study the failure mechanism of geocell-reinforced retaining walls under earthquake, to analyze the advantages of the geocell retaining wall in controlling deformation compared with the unreinforced retaining wall and geogrid-reinforced retaining wall, and we try to study the deformation of the reinforced wall by changing the length of the geocell and reinforcement spacing of the geocell. Research indicates the horizontal displacement of the wall edge of the reinforced retaining wall under the earthquake is slightly smaller than that of the center of the wall and the back of the wall. The geocell can effectively reduce the horizontal displacement of the retaining wall, and the effect is better than the geogrid. Increasing the length of the geocell and reducing the spacing of the geocell can effectively reduce the horizontal displacement of the retaining wall, and the effect of displacement controlling at the top of the wall is better than in other positions.

scholarly journals Stability analysis of composite I-shaped masonry reinforced retaining wall

2020 ◽  
Vol 198 ◽  
pp. 02032
Author(s):  
Wu Yuedong ◽  
Zhang Lei ◽  
Xu Nan ◽  
Lui Jian
Keyword(s):  
Numerical Simulation ◽  
Retaining Wall ◽  
Single Layer ◽  
Earth Pressure ◽  
Horizontal Displacement ◽  
Finite Element Software ◽  
The Earth ◽  
Overall Stability ◽  
The Stability ◽  
Reinforced Retaining Wall

Based on the actual project, the influence of geogrid on the stability of the retaining wall of the single-layer masonry reinforced retaining wall is studied through field test and finite element software ABAQUS numerical simulation. The influence of geogrid on the stability of the retaining wall was determined by analyzing the changes in the pressure of the backfill, the displacement of the retaining wall and the strain of the geogrid, and changing the length and spacing of the geogrid through the controlled variable method. The results show that the geogrid can limit the horizontal displacement of the soil, balance the earth pressure, and improve the overall stability of the retaining wall. By increasing the length of the geogrid and reducing the distance of the geogrid, the design of the retaining wall is optimized, which has good economic and time benefits.

Model Tests on Force Characteristics of Reinforced Retaining Wall

2013 ◽  
Vol 353-356 ◽  
pp. 368-373 ◽  
Author(s):  
Hong Bo Zhang ◽  
Jian Qing Wu ◽  
Ying Yong Li ◽  
Xiu Guang Song ◽  
Zhi Chao Xue
Keyword(s):  
Retaining Wall ◽  
Earth Pressure ◽  
Small Deformation ◽  
External Pressure ◽  
Reinforced Soil ◽  
Laboratory Model ◽  
Soil Pressure ◽  
Pressure Distributions ◽  
Lateral Earth Pressure ◽  
Reinforced Retaining Wall

The recent research and development of the reinforced retaining wall is composed of cantilevered reinforced concrete retaining walls which symmetric set on both sides of subgrade and through roadbed width of counter-pulled anchors. The prestressing force can be applied on anchors.The retaining wall has the advantange of high safety, lateral small deformation , wide applicable range and low requirements for the foundation bearing capacity. But due to the lateral restraint of bolt, the soil pressure distributions of retaining wall change a lot. The change will have a significant impact on structures. In order to reveal the reinforced soil retaining wall pressure distributions, laboratory model test was done. The monitoring instruments such as earth pressure cells, anchor rope dynamometers and dial indicators were installed. Research and analysis on the loading process reinforced type soil retaining wall under soil pressure, the lateral earth pressure and anchor rope tension change rule were researched and analysed. The experimental results showed that with the increasing of filling soil height, the retaining wall had a tendency to tilt outward. The basolateral external pressure is larger than the inside pressure. At the same time, anchor tension increased as the top loading increased. Lateral earth pressure distribution is parabolic. Soil pressure around the anchor is larger than other area, the soil arch effect is significant.

Numerical Simulation of Pile-Bucket Foundation under Horizontal Load

2012 ◽  
Vol 460 ◽  
pp. 169-174
Author(s):  
Wen Bai Liu ◽  
Liang Yang ◽  
Chen Xia Zhu
Keyword(s):  
Failure Surface ◽  
Horizontal Load ◽  
Soil Pressure ◽  
Passive Region ◽  
Deep Soil ◽  
Maximum Displacement ◽  
Bucket Foundation ◽  
Load Line ◽  
Soil Stress ◽  
Pressure Changes

The pile-bucket foundation is a new kind of foundation. In this paper, the ABAQUS software was used to analyze the soil displacement field and the soil stress field surrounding of the pile-bucket foundation under the multi-cycle horizontal loading. Under the horizontal load, the active area of soil separated from the basics; the passive region takes the shape of a parabolic ring of soil wedge rotate failure surface. The maximum displacement was in the direction of horizontal load line on the surface of soil near the bucket. Horizontal and vertical soil pressure changes are concentrated under the surface of the soil near the bucket, and the maximum horizontal soil stress was in the deep soil around the bucket. There is a point of inflection between 1/3 and 1/2 of the pile into soil , and the soil pressure that upper and lower the point increased in the opposite direction. The horizontal forced resistance of the foundation mainly distributed under the bucket and 1/2 of the pile into soil .The conclusion could provide a reference basis for the analysis of bearing mechanism and destruction characters of pile-bucket foundation

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