附加土压力理论的物理模型试验研究

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英文篇名：Experimental study on physical model of additional earth pressure theory 作者：王成华 ; 王晓旋 英文作者：WANG Chenghua;WANG Xiaoxuan;School of Civil Engineering,Tianjin University; 关键词：附加土压力 ; 土压力与位移关系 ; 土弹簧模型 ; 模型试验 英文关键词：additional earth pressure;;relationship between earth pressure and displacement;;soil spring model;;model test 中文刊名：NCDG 英文刊名：Journal of Nanchang University(Engineering & Technology) 机构：天津大学建筑工程学院; 出版日期：2019-03-28 出版单位：南昌大学学报(工科版) 年：2019 期：v.41;No.159 基金：国家自然科学基金资助项目(51478313) 语种：中文; 页：NCDG201901008 页数：6 CN：01 ISSN：36-1194/T 分类号：44-48+54

摘要

为了验证附加土压力理论中挡土结构土压力的大小和分布与其侧向位移有关这一论点,设计了用弹簧代替土层的基坑物理模型,并进行了模拟基坑开挖过程的物理模型试验。将土压力分为实有土压力、附加土压力和静止土压力,探究土体弹簧模型的变形机制,发现附加土压力和弹簧变形呈线性关系,验证了土体变形的原因是附加土压力这一观点的合理性。
        In order to verify the view in theory of additional earth pressures,that the size and distribution of earth pressure on the retaining structure were related to its lateral displacement.We designed and made a simplified soil spring model and conducted a test to simulate excavation. The earth pressure was divided into the total earth pressure,additional earth pressure and static earth pressure,studying on deformation mechanism of soil spring model and it was found that there was a linear relationship between additional earth pressure and spring's deformation,and it showed that the deformation of soil was caused by the additional earth pressure has some rationality.

引文

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