A Numerical Analysis on Stability Analysis of Cavity Ground considering Pavement Thickness and Traffic Load

IF 0.4 Q4 ENGINEERING, GEOLOGICAL Journal of the Korean Geosynthetic Society Pub Date : 2019-01-01 DOI:10.12814/JKGSS.2019.18.4.287
S. You, Ahn heechul, Youngho Kim, Junggeun Han, G. Hong, Jeongjun Park
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引用次数: 1

Abstract

In this study, a series of finite element numerical analyzes were performed considering the pavement thickness and traffic load for the purpose of stability analysis on the cavity ground. In order to verify the validity of this numerical method, the previous numerical analysis was used to simulate the mechanical behavior of cavity ground, and the results were compared and analyzed. Also, from the numerical results, it was possible to confirm the dynamic behavior of the ground by confirming the change of ground void ratio, surface settlement, and shear stress, and using the relationship between stress ratio, non-destructive depth and surface settlement, the safety of the was analyzed. As a result, as the pavement thickness decreased and the traffic load increased, the non-destructive depth and the overall stability of the ground decreased with the increase of surface settlement.
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考虑路面厚度和交通荷载的空腔地面稳定性数值分析
在本研究中,考虑路面厚度和交通荷载,对空腔地面进行了一系列有限元数值分析。为了验证该数值方法的有效性,利用前人的数值分析方法对空腔地基的力学行为进行了模拟,并对模拟结果进行了对比分析。此外,数值计算结果可以通过确定地表空洞比、地表沉降和剪应力的变化来确定地基的动力特性,并利用应力比、无损深度和地表沉降之间的关系来分析基坑的安全性。结果表明,随着路面厚度的减小和交通荷载的增大,地面的无损深度和整体稳定性随地表沉降的增大而减小。
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