Analysis of the Factors for Displacement of Earth Retaining Wall with Twin-Stepped Construction
Analysis of the Factors for Displacement of Earth Retaining Wall with Twin-Stepped Construction作者机构：Department of Earth Resources Engineering Faculty of Engineering Kyushu University Fukuoka Japan
出 版 物：《World Journal of Engineering and Technology》 (世界工程和技术（英文）)
年 卷 期：2019年第7卷第1期
页 面：114-121页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Excavation Behavior Earth Retaining Wall Finite Element Method
摘 要：The demand for specific earth retaining wall method is increasing, along with the advancement and overcrowding of underground space use, such as the?presence of close structures, in an urban area. The method is named stepped-twin?retaining wall. The feature of this method is to have inner and outer retaining walls and excavate the ground by two-step in order to minimize the effect of the excavation on neighboring existing structures. However, the design of the earth retaining wall is currently carried out by individual engineers based on their own experience. Therefore, it is crucial that the standard method of retaining wall using a two-step construction is established. As the first step toward the standardization, evaluation of factors affecting the ground behavior of the earth retaining wall was carried out. In particular, we picked up four major considerable factors, which are horizontal distance between the outer and inner walls, depth of outer wall embedment, mechanical properties of soil. The evaluation was done by using two dimensional FEM analysis and the results were summarized to make clear the effect of each factor.
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