平兴高速公路边坡病害防治技术研究

发布时间：2018-05-18 12:37

本文选题：高速公路 + 顺层边坡　；参考：《长安大学》2017年硕士论文

【摘要】：随着“一带一路”战略方针的实施,大量的山区高速公路被纳入修建计划,其建设规模与难度都将大幅增长,而在修建高速公路过程中,存在大量的、不同种类的边坡,使得公路边坡灾害问题也日益凸出。论文以平兴高速修建过程中的各类边坡问题为研究基础,对平兴高速进行工程地质分区,系统分析了各分区中各类边坡的病害特点;对平兴高速边坡灾害较为集中的顺层边坡及煤系地层边坡的典型工点进行了深入剖析,并对此两类边坡的破坏模式及防治对策展开研究,在此基础上提出灾害防治设计参考图。主要研究内容如下:(1)依据依托工程的地质资料,以地层岩性作为线路工程地质分区的主要依据,对平兴高速进行分区,系统分析了各分区边坡病害特点。(2)针对平兴高速边坡病害集中在沉积岩地层区,尤以煤系地层(二叠系)及顺层边坡灾害最为突出的特点,对煤系地层(二叠系)及顺层边坡灾害典型工点进行了深入分析。(3)通过对依托工程中出现的不同种类高速公路顺层边坡研究,对顺层边坡灾害的破坏机理进行了剖析,并针对依托工程顺层边坡的灾害特点提出有效防治措施、设计参考图。(4)总结典型病害工点,得出广东煤系地层边坡岩土强度指标,并依据煤层的厚度对煤系地层进行分类,对煤系地层边坡的典型坡体结构以及破坏模式进行总结,最后通过典型工点剖析,提出煤系地层边坡灾害防治对策及设计参考图。
[Abstract]:With the implementation of the "Belt and Road" strategic policy, a large number of mountain highways are included in the construction plan, and the scale and difficulty of the construction will increase significantly. However, there are a large number of different types of slopes in the process of building the expressway. The problem of highway slope disasters is becoming more and more prominent. Based on the study of various slope problems in the process of Pingxing high speed construction, the engineering geological zoning of Pingxing high speed is carried out, and the characteristics of various slope diseases in each district are analyzed systematically. In this paper, the typical working points of the bedding slope and the coal measure slope with concentrated disasters of Pingxing high speed slope are deeply analyzed, and the failure modes and prevention countermeasures of these two kinds of slopes are studied. On the basis of this, the reference map of disaster prevention and control design is put forward. The main research contents are as follows: (1) based on the geological data of the project and taking stratigraphic lithology as the main basis for the geological zoning of the line engineering, the Pingxing high speed is partitioned. This paper systematically analyzes the characteristics of slope diseases in different subzones. (2) aiming at the high speed slope diseases in Pingxing, which are concentrated in sedimentary rock strata, especially in coal measure strata (Permian system) and bedding slope disasters, In this paper, the typical work points of coal measure strata (Permian) and bedding slope disasters are deeply analyzed. The failure mechanism of bedding slope disasters is analyzed through the study of different kinds of expressway bedding slopes which appear in supporting engineering. According to the disaster characteristics of bedding slope of relying engineering, the effective prevention measures are put forward, the design reference figure. 4) summing up the typical disease work points, obtaining the rock and soil strength index of Guangdong coal measure strata slope, and classifying coal measure strata according to the thickness of coal seam. The typical slope structure and failure mode of coal measure strata slope are summarized. Finally, through the analysis of typical work points, the disaster prevention countermeasures and design reference map of coal measure strata slope are put forward.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U418.5

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