Design method for steel grid reinforced earth structure considering bearing resistance

2021 ◽  
pp. 1039-1042
Author(s):  
T. Matsui ◽  
Y. Nabeshima ◽  
S.G. Zhou ◽  
N. Ogawa
Keyword(s):  
Design Method ◽  
Earth Structure ◽  
Reinforced Earth

The Stability Analysis of Reinforced Earth Retaining Wall System and the Study of its Reinforcement Optimization

2011 ◽  
Vol 90-93 ◽  
pp. 2389-2392
Author(s):  
Hai Yan Ju ◽  
Gui Qing Gao ◽  
Jian Hua Li ◽  
Jiang Qian Zhao ◽  
Zhang Ming Li
Keyword(s):  
Cross Sections ◽  
Design Method ◽  
Retaining Wall ◽  
Physical Behavior ◽  
Reinforced Earth ◽  
Slope Treatment ◽  
The Stability ◽  
Relationship Of ◽  
The Relationship ◽  
System Program

Because the relationship is not considered between physical behavior and cross sections of bars, the conventional reinforced earth retaining wall design based on constant value would lead to some limitations: the haul-resistant coefficient of the top wall is not enough, but it goes beyond at the bottom of retaining wall. In the paper, considering the SARMA method, based on computing formula of traditional slope stability, the detailed programme is realized by the language of FORTRAN, it can make up deficiency that lies in the tradition reinforced earth retaining wall by considering the relationship of physical behavior and cross sections, lengths and layers of bars. Finally, the system program has been applied to a slope treatment project in Guangzhou. Compared with the design method of traditional regulations, it is demonstrated that the optimum length required is obtained, the cross section and length of bars are fully used, and the design is simplified.

New design method of composite fabrics – Reinforced earth fill

2021 ◽  
pp. 1033-1038
Author(s):  
Y. Tanabashi ◽  
N. Wakuda ◽  
K. Suyama ◽  
K. Yasuhara ◽  
T. Hirai ◽  
...  
Keyword(s):  
Design Method ◽  
Reinforced Earth ◽  
Composite Fabrics ◽  
Earth Fill

Reinforced earth retaining wall analysis and design

1986 ◽  
Vol 23 (3) ◽  
pp. 317-326 ◽  
Author(s):  
J. T. Laba ◽  
J. B. Kennedy
Keyword(s):  
Design Method ◽  
Retaining Wall ◽  
Tensile Force ◽  
Stress Transfer ◽  
Maximum Magnitude ◽  
Analysis And Design ◽  
Strength Capacity ◽  
Reinforced Earth ◽  
Tensile Forces ◽  
Combined Action

An experimental and theoretical study was conducted to assess the maximum tensile forces mobilized in a reinforced earth retaining wall, subjected to a vertical surcharge strip load or the combined action of vertical and horizontal surcharge strip loads. A simple design method for determining the maximum magnitude of the tensile force and its distribution with depth of the reinforced earth backfill was developed. The design method takes into consideration the ability of the reinforced earth wall system to retain its internl equilibrium by stress transfer from overstressed regions to those regions where the reinforcing elements have not yet reached their full frictional or strength capacity. The effect of the magnitude and location of the strip load on this phenomenon of stress transfer is shown. Favourable comparisons were obtained between the results given by the proposed design method and those from model tests. Key words: reinforced earth, vertical and horizontal surcharge strip load, reinforcing elements, internal stability, stress transfer.

scholarly journals PULLOUT RESISTANCE CHARACTERISTICS OF STRIPS FROM CEMENT-TREATED SOIL AND DESIGN METHOD OF STRIP IN REINFORCED EARTH WALL

2010 ◽  
Vol 66 (3) ◽  
pp. 516-529 ◽  
Author(s):  
Yukio TASAKA ◽  
Motoyuki SUZUKI ◽  
Osamu YONEDA ◽  
Naoki SHIMURA ◽  
Yosuke SUGIYAMA
Keyword(s):  
Design Method ◽  
Treated Soil ◽  
Pullout Resistance ◽  
Reinforced Earth

Stabilité interne des murs en terre armée

1977 ◽  
Vol 14 (3) ◽  
pp. 389-398
Author(s):  
Robert P. Chapuis
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Mechanical Behaviour ◽  
Design Method ◽  
Retaining Walls ◽  
Experimental Results ◽  
New Method ◽  
Internal Stability ◽  
Reinforced Earth ◽  
Theoretical Predictions

The methods currently available to check the internal stability of reinforced earth retaining walls are reviewed and compared with two groups of experimental results obtained by model tests. The results do not agree with the theoretical predictions which generally underestimate the mechanical properties of this reinforced earth. After a reexamination of the mechanical behaviour of reinforced earth retaining walls, a new design method is suggested. It makes use of a cohesion term to represent the soil–ties interaction, and takes into consideration that reinforced earth is a composite material. This new method is in agreement with experimental results and shows the influence of such parameters as the length and spacing of the ties.

scholarly journals Pullout Characteristics of Geosynthetics Reinforced Earth Using Multilayer Spreading Pullout Test

2017 ◽  
Vol 2017 ◽  
pp. 1-11
Author(s):  
Jong-Beom Park ◽  
Daehyeon Kim ◽  
Si-Bong Yang ◽  
Jang-Heung Kim
Keyword(s):  
Pullout Test ◽  
Earth Structure ◽  
Ground Model ◽  
Stress Distributions ◽  
Test Results ◽  
Test Apparatus ◽  
Test Technique ◽  
Reinforced Earth ◽  
The Difference ◽  
Direct Shear Testing

Pullout test equipment for examining pullout characteristics in a reinforced earth structure is relatively larger than direct shear testing machines and requires much time and expenses in preparing samples. Moreover, because of irregular stress distributions with respect to the length of reinforcements, it is difficult to analyze pullout test results. In this study, we developed a multilayer spreading pullout apparatus enabling the pullout test in the order of a top stage, middle stage, and bottom stage with different loads once a ground model is prepared, suggesting an efficient method of a multilayer spreading pullout test. The pullout test is carried out at least three times with the prepared ground model while changing confining loads. Jumunjin sand was used to verify the developed pullout test apparatus and to analyze pullout characteristics of each reinforcement. The analysis reveals that the difference between angles of pullout friction is approximately 0.86 to 1.3° which is distributed within the error range of a pullout test. As a result, the multilayer spreading pullout apparatus is applicable as a new pullout apparatus, and the suggested method of multilayer spreading pullout test is identified as a pullout test technique efficiently to obtain pullout parameters.

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