基于不同破坏类型的加筋土挡墙土压力分析
摘要:依托设计的加筋土挡土墙研究模型,结合前人的分析成果,通过公式推导,对挡土墙墙后加筋土体的土压力、似粘聚力、似摩擦角及破坏类型进行了研究。通过对工程实例的研究总结,得出加筋土挡土墙墙后填土主要有摩擦型破坏和拉断型破坏两种破坏型式;公式推导结果表明:对于不同的破坏类型,墙后填土内的摩擦角和粘聚力随填土高度变化,但二者的变化趋势不同,在拉断型破坏中,其填土中的"似粘聚力"随拉筋的垂直层间距的变化较明显;在相同的填土高度下,认为加筋挡土墙更易发生拉断型破坏。
Abstract:This paper Based on designed reinforced soil retaining wall model,combined with the analysis of previous studies,through the derivation of the formulas,the earth pressure,the pseudo-cohesion,the pseudo-friction angle and the destruction forms of the reinforced soil retaining wall were studied.According to the summary,the forms of the failure mode of reinforced earth retaining wall can be divided as friction failure and pull off failure.Derived results showed that:for the different failure forms,the changes of the friction and the cohesions were different,especially for the pull off failure,the changel of the likely cohesion followed by the vertical layer spacing of the reinforcement was obvious.And it was more easier to happen the pull off failure when the filling heights were the same.
中文标题：
基于不同破坏类型的加筋土挡墙土压力分析
Analysis of Lateral soil Pressure for Reinforced Earth Retaining Wall Based on Different forms of Failure
作者：
张帆,朱登远
Zhang Fan,Zhu Dengyuan
作者简介:张帆,1988年生,男,甘肃民勤人,现为长安大学公路学院岩土工程专业在读硕士研究生。E-mail:gsmgzhangfan-@163.com
通讯地址：
长安大学公路学院, 陕西西安 710064
SchoolofHighway,Chang'anUniversity,Xi'an710064China
中图分类号:TU476.4
doi:10.3969/j.issn.1007-2993.2013.02.002
出版物：岩土工程技术
收稿日期:2013-01-24
关键词:路基工程,加筋土挡墙,强度模型,摩擦型,拉断型
Key words:subgrade,reinforced earth retaining wall,strength model,friction failure,tensile failure
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