斜坡式防波堤稳定性的数值模拟研究

发布时间：2018-03-01 05:23

本文关键词： 斜坡式防波堤软件对比参数分析动力模块研究动力计算　出处：《长沙理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：斜坡式防波堤是常用的防波堤结构型式,对于有抗震设防要求的斜坡式防波堤,斜坡式防波堤稳定性计算还有一系列问题值得探讨。本文作者基于Ashdod港口主防波堤延长段工程项目对对斜坡式防波堤稳定性展开了一系列研究。利用有限元软件PLAXIS和常规软件Geo-slope进行对比计算,探究PLAXIS在工程应用中的优劣,此外从工程实践角度,研究探讨常用几种地基处理方式对斜坡式防波堤设计的影响,并对斜坡式防波堤进行了动力模块分析,更对斜坡式防波堤的稳定性影响因素进行了深度研究。本文对国内外边坡抗震研究的相关资料进行了较为系统的整理,将边坡稳定性研究方法做了检索和阐述。针对斜坡式防波堤稳定性计算中的突出问题进行了研究。通过数值模拟得出,斜坡式防波堤一般是堤头贯通失稳,整体滑移,导致堤角处隆起从而破坏;本文得出土体强度,防波堤的尺度以及自然条件等对斜坡式防波堤的稳定性有着重大的影响,而高震区的防波堤设计需重视不同地基处理所带来的效果。通过本文的研究,为今后斜坡式防波堤的工程计算和设计提供了参考和依据。
[Abstract]:Slope breakwater is a common structural type of breakwater. There are still a series of problems to be discussed in the stability calculation of sloping breakwater. Based on the Ashdod port main breakwater extension project, the author has carried out a series of research on the stability of the slope breakwater. The finite element software is used to study the stability of the slope breakwater. The PLAXIS is compared with the conventional software Geo-slope. This paper probes into the merits and demerits of PLAXIS in engineering application. In addition, from the point of view of engineering practice, the influence of several kinds of foundation treatment methods on the design of slope breakwater is studied, and the power module analysis of slope breakwater is carried out. Furthermore, the factors affecting the stability of slope breakwater are studied in depth. In this paper, the relative data of slope seismic research at home and abroad are systematically sorted out. The research method of slope stability is searched and expounded. The prominent problems in the stability calculation of slope breakwater are studied. This paper concludes that the strength of soil, the scale of breakwater and the natural conditions have great influence on the stability of slope breakwater. The design of breakwater in high seismic area should pay attention to the effect of different foundation treatment. Through the research of this paper, it provides a reference and basis for the engineering calculation and design of slope breakwater in the future.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U656.2

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