土工格栅加筋边坡稳定性分析

发布时间：2018-05-08 23:02

  本文选题：边坡稳定性 + 稳定性　； 参考：《武汉理工大学》2015年硕士论文

【摘要】：对边坡进行加固以提高其稳定性时,采用土工格栅是一种经济合理的选择。科学布置土工格栅加固边坡,是节约成本、保障生命安全以及保护场区周边自然环境的关键。本研究旨在评估十堰市汽车城某加筋人工边坡的稳定性。通过极限平衡分析和基于显式有限差分法的三维数值分析方法,预测土工格栅人工边坡的稳定性。文中采用了FLAC3D和GEOSLOPE数值计算软件进行分析,考虑了四种工况和四种强度折减系数,并计入了渗流和孔隙水压的影响。其后,分别采用FLAC3D和GEOSLOPE分析边坡稳定性,并对两者数值计算结果进行了对比分析。边坡稳定性分析中考虑了土工格栅的影响,即分析边坡稳定性结果的同时考虑到了土工格栅的响应考虑到边坡整体的稳定,边坡在第一类工况所描述条件下最安全,该工况中包含了边坡正常使用情况。采用土工格栅可以显著增加边坡安全系数。但十堰北加筋边坡由于施工不善,综合分析确定其边坡稳定性安全系数为1.09,因此,进一步提出了几种加固方案。论文的研究成果对同类工程有重要的参考价值。本文包括了文献综述,49组图片,14个表格,和83篇参考文献。
[Abstract]:When the slope is strengthened to improve its stability, the use of geogrid is an economical and reasonable choice. The scientific layout of the geogrid to reinforce the slope is the key to saving the cost, ensuring the safety of life and protecting the surrounding natural environment. The purpose of this study is to evaluate the stability of a reinforced artificial slope in the city of Shiyan. The balance analysis and the three-dimensional numerical analysis method based on the explicit finite difference method are used to predict the stability of the geogrid artificial slope. In this paper, the FLAC3D and GEOSLOPE numerical software are used to analyze the four working conditions and four strength reduction factors, and the effects of the seepage and pore water pressure are taken into account. Then, FLAC3D and GEO are used respectively. The stability of the slope is analyzed by SLOPE, and the numerical results are compared and analyzed. The effect of the geogrid is considered in the slope stability analysis, that is to analyze the results of the slope stability and consider the response of the geogrid to consider the stability of the slope as a whole. The slope is the most safe under the conditions described in the first type of working condition. It contains the normal use of the slope. The use of geogrid can significantly increase the safety factor of the slope. However, because of the poor construction of the North reinforced slope in Shiyan, the comprehensive analysis and determination of the safety factor of the slope stability is 1.09. Therefore, several reinforcement schemes have been put forward. This article includes a literature review, 49 sets of pictures, 14 tables, and 83 references.

【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU472;TU43
，

本文编号：1863453