【作者】 董锐哲；

【导师】 李明宝；

【作者基本信息】 东北林业大学 ， 岩土工程， 2014， 硕士

【摘要】 加筋土挡墙是挡土墙结构的一种型式,被越来越多的工程应用。由于对加筋土挡墙的研究时间尚短,对加筋土挡墙的破坏机理并没有成熟理论体系,因此对已投入使用的加筋土挡墙出现的实际问题并没有系统的解决方案。在实际的加筋土挡墙检测过程中发现外倾量是最容易进行实际检测并且根据经验也是最能反应加筋土挡墙工作状态的物理量,于是本文从加筋土挡墙的外倾影响因素作入手,运用大型岩土有限元软件Midas-GTS模拟加筋土挡墙,分析不同影响因素对加筋土挡墙外倾量和内力的影响及其变化规律,并且针对与外倾量有关的病害提出了可行的治理措施。本文总结加筋土挡墙国内外研究和应用的现状及其主要的设计方法和理论,讨论使用有限元软件对加筋土挡墙外倾量研究的可行性。分析影响加筋土挡墙外倾量的主要因素有哪些,并使用大型有限元分析软件Midas-GTS模拟、分析这些因素对外倾量的具体影响。分析填土黏聚力、内摩擦角、挡墙面板弹性模量、加筋布置方案等主要影响因素的变化对挡墙外倾量与内力的影响。通过现场实际检测对加筋土挡墙外倾量进行实际观测,并且在对加筋土挡墙外倾量影响因素分析研究的基础上,对实际检测中出现的能引起外倾的病害与缺陷提出合理可行的处理措施与加固方案。更多还原

【Abstract】 Reinforced soil retaining wall is a type of retaining wall structure, a project to be applied to more and more. Due to the time of study of the retaining wall is short, on the failure mechanism of reinforced earth retaining wall does not mature theoretical system, so the actual problems on the reinforced soil retaining wall was no solution system. In the actual process of reinforced earth retaining wall found that extraversion is easy for practical detection, and acording to the experience it’s the most physical state response of reinforced soil retaining wall, So this paper takes the extraversion affect factors of reinforced soil retaining wall,by using large geotechnical finite element software Midas GTS to simulate the reinforced soil retaining wall.And according to the related to extraversion amount of disease puts forward feasible measures.Summary of reinforced soil retaining wall at home and abroad and its main research and application of design methods and theories to discuss the feasibility of using finite element software reinforced earth retaining wall camber amount studies. The main factors affecting the amount of reinforced earth retaining wall of what extraversion and using finite element analysis software Midas-GTS simulate, analyze the impact of these factors specific amount of foreign dumping. Analysis filling cohesion, internal friction angle, change the main factors in retaining wall elastic modulus, reinforcement layout programs and internal forces affect the amount of dumping on the wall outside.By detecting the actual site of the reinforced earth retaining wall camber amount actually observed, and the camber of the reinforced earth retaining wall factors affecting the amount of basic research on the actual detection of emerging diseases and defects can cause camber reasonable and feasible measures to deal with the reinforcement scheme.更多还原