Rock and Soil Mechanics ›› 2021, Vol. 42 ›› Issue (2): 401-410.doi: 10.16285/j.rsm.2020.0900

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Partition calculation theory of horizontal displacement in reinforced earth retaining wall under earthquake

LU Liang1, 2, 3, HE Lin-yao1, 2, WANG Zong-jian4, KATSUHIKO ARAI5   

  1. 1. School of Civil Engineering, Chongqing University, Chongqing 400045, China; 2. Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, Chongqing University, Chongqing 400045, China; 3. Key Laboratory for Special Area High Way Engineering of the Ministry of Education, Chang’an University, Xi’an, Shaanxi 710064, China; 4. College of River & Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China; 5. Faculty of Construction and Infrastructure Engineering, University of Fukui, Fukui 9108507, Japan
  • Received:2020-06-28 Revised:2020-11-09 Online:2021-02-10 Published:2021-02-09
  • Supported by:
    This work was supported by the General Program of National Natural Science Foundation of China(51679018), the Fundamental Research Funds for the Central Universities, CHD (300102219514) and the Graduate Scientific Research and Innovation Foundation of Chongqing(CYB19017).

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Abstract: As a flexible structure, reinforced earth retaining walls have been widely used in the field of civil engineering. However, excessive horizontal displacement of reinforced earth retaining wall due to earthquake could affect its service performance. Therefore, it is very important to develop an effective analytical method to calculate the horizontal displacement of reinforced earth retaining wall under earthquake. The reinforced earth retaining wall was divided into two regions for calculation based on the different movement characteristics of the backfill behind the wall. The key factors affecting the horizontal displacement of the reinforced earth retaining wall in different regions were discussed. Based on Mindlin displacement theory and pseudo-dynamic method, the calculation method of horizonal displacement in different regions under the earthquake, under the assumption of no soil-reinforcement relative slippage, was proposed and the influence of soil-reinforcement relative slippage on calculated results was studied. This method is further verified by centrifuge model test and can be used in the seismic dynamic analysis of general reinforced earth retaining walls. This provides basis for the dynamic design and stability analysis of reinforced earth retaining walls.

Key words: reinforced earth retaining wall;horizontal displacement;partition method, pseudo-dynamic, tension of reinforcement

CLC Number: 

  • TU 435
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