山区公路挡墙防护结构优化设计与应用

发布时间：2018-06-09 22:23

本文选题：公路 + 边坡治理　；参考：《重庆交通大学》2015年硕士论文

【摘要】：随着经济高速发展,山区公路网的建设也随之快速发展,山区公路由于其本身的特点随之公路边坡病害也越来越多。这就要求设计人员在进行公路设计时针对容易发生边坡病害或潜在危险的区域设计边坡防护措施。其中挡土墙作为一种在边坡病害治理当中应用广泛的治理方法受到广泛应用,但是如何选择合适的挡土墙类型及形式使得效果达到最佳是需要进一步研究的。本文通过对道路边坡的分析研究,对挡土墙的设计方案进行了优化设计使边坡治理更加科学化和合理化。本论文从国内外挡土墙及边坡工程的发展现状入手,分析研究现有的边坡处治措施及挡土墙设计存在的问题,各种挡土墙的形式的使用条件以及影响因素,主要的研究内容有：①研究了边坡稳定的主要影响因素并给出了影响作用；然后介绍公路边坡的破坏形式以及病害类型,最后重点是阐述公路边坡治理措施中挡土墙治理方法的应用设计,并研究挡土墙的作用原理、各自的优缺点、使用范围等。②归纳总结了山区公路的边坡种类、边坡的灾害类型及影响边坡稳定的因素。分析归纳出各种会影响稳定性的因素比如工程所在工程地质、气候原因、边坡特性及其他因素,当然每一项对边坡造成的影响程度也不尽相同,有的起主要作用、有的起次要作用。③对各种挡土墙的形式进行了深入研究以及各种挡土墙形式的选型要点和适用条件进行详述归纳；阐述挡土墙设计中涉及的土压力的种类、计算理论。④在山区公路中常会发生的边坡灾害可归纳为以下三类：滑坡、崩塌、剥落。每种灾害都有其发生的特定环境,对灾害进行深入分析有利于在边坡设计时有针对性的加以防护,维护山区公路安全。⑤山区公路防护工程设计最主要的问题时在防护方案的安全可靠和经济指标之间达到近乎平衡的状态,并且在这一过程中要综合考虑与周边自然环境的协调、因地制宜、防护工程的一次性治理等各项目标,综合设计、权衡各项利弊,得到最佳边坡防护治理方案。这也是本文的研究重点。⑥结合石柱县南宾工业园区边坡治理工程,对滑坡体稳定性开展综合评价,在进行挡土墙的实际工程设计中通过反复校核不同指标最终确定采用方案,结合渝湘高速公路K1958+100右侧滑坡治理工程,对边坡整治方案的拟定方法进行论证。
[Abstract]:With the rapid development of economy, the construction of mountain highway network is also developing rapidly, and the mountain highway has more and more highway slope diseases due to its own characteristics. This requires designers to design slope protection measures for areas prone to slope diseases or potential hazards in highway design. Among them, retaining wall is widely used in slope disease treatment, but how to select the appropriate retaining wall type and form to make the best results need to be further studied. Through the analysis and study of the road slope, the optimum design of the retaining wall is carried out to make the slope treatment more scientific and reasonable. Starting with the development of retaining wall and slope engineering at home and abroad, this paper analyzes and studies the existing slope treatment measures and the problems existing in the design of retaining wall, the use conditions of various retaining wall forms and the influencing factors. The main research contents are as follows: (1) the main influencing factors of slope stability are studied and the effect is given, and then the failure form and disease type of highway slope are introduced. The last emphasis is to expound the application design of retaining wall treatment method in highway slope treatment measures, and study the action principle of retaining wall, their advantages and disadvantages, application scope and so on. 2. Summarize the slope types of mountain highway. Hazard types of slopes and factors affecting slope stability. The factors that will affect the stability of the project, such as engineering geology, climatic reasons, slope characteristics and other factors, are analyzed and summarized. Of course, each of them has different degrees of influence on the slope, some of which play a major role. Some of them play a minor role in studying the forms of various retaining walls in depth, and in detail summarizing the selection points and applicable conditions of various retaining wall forms, and expounding the types of earth pressure involved in the design of retaining walls, The slope disasters that often occur in mountain highway can be classified into three types: landslide, collapse and spalling. Each type of disaster has its own specific environment, and in-depth analysis of disasters is conducive to targeted protection in slope design. Maintain the safety of mountain highways. 5. The most important problems in the design of mountain road protection works are to achieve a near balance between the safety, reliability and economic indicators of the protection schemes, And in this process, we should consider the coordination with the surrounding natural environment, suit measures to local conditions, one-off treatment of protection engineering and other objectives, comprehensive design, weigh the advantages and disadvantages, and get the best slope protection treatment scheme. This is also the key point of this paper. 6. Combined with the slope treatment project of Shizhu County Nanbin Industrial Park, the comprehensive evaluation of landslide body stability is carried out. In the actual engineering design of retaining wall, the adoption scheme is finally determined by checking the different indexes repeatedly. Combined with the right side landslide control project of Chongqing-Hunan Expressway K1958 100, the drawing-up method of slope regulation scheme is demonstrated.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U417.1

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