铜黄高速公路滑坡形成原因分析及治理措施

发布时间：2018-03-02 04:25

本文关键词： 铜黄高速黄土滑坡形成原因治理措施　出处：《长安大学》2015年硕士论文　论文类型：学位论文

【摘要】：伴随着中国经济发展战略开始向西部转移以及我国开发西部的战略计划执行,黄土地域高速公路建设飞速发展,各区域项目实际实施中又因地理条件不同遇到了许多地质地形的施工问题,地质方面的问题表现的尤为突出,高速公路是由路基、桥涵、隧道组成的,桥涵、隧道地目前施工中因施工费用多、项目重视程度高,问题较少,而路基因施工粗线条,不是控制性工程,各项目重视程度低,使得项目施工中问题频发,最近十多年高速公路路基施工中边坡施工问题暴露的尤其明显。于是,精确评判公路边坡的稳定性,并有针对性地提出治理防护措施,从而使得项目的滑坡治理合乎安全、适宜工程。文中根据铜黄高速公路滑坡为研究对象,对研究区的工程地质概况、气象水文特征、地形地貌、地层岩性及滑坡的基本地质条件等进行了具体阐述,结合这些工程地质条件,根据现场调查,钻探试验,从滑体特征、变形破坏特征、滑动面等方面研究了滑坡的发生条件和特性。认真分析了具有代表性的四段滑坡的形态、变形、结构、滑带土和滑面等方面的特征,提出了四处滑坡的产生原因。通过分析该滑坡的形成原因,了解到影响此处滑坡形成的敏感性因素主要为软弱结构面和高临空条件。最后根据实际工程情况,综合经济性、实用性、必要性提出治理滑坡的方案,具体工程措施有抗滑桩、抗滑挡墙、窗式骨架护坡和排水措施相结合共同作用的防护方法,以及滑坡防护措施建造过程中需要留意的相关事项。本文以铜黄高速公路实际工程为背景,针对滑坡形成原因和滑坡的治理对策进行探讨,对今后高速公路处置相似滑坡具有一定的借鉴和参考意义。
[Abstract]:With China's economic development strategy beginning to shift to the west and the implementation of our country's strategic plan to develop the western region, the highway construction in the loess region has developed rapidly. In the actual implementation of various regional projects, due to different geographical conditions, there are many construction problems of geological topography, especially in geological aspects. The expressway is composed of subgrade, bridge, culvert, tunnel, bridge and culvert, and the highway is composed of subgrade, bridge and culvert, and bridge and culvert. At present, due to the high cost of construction, the high degree of attention to the project and the less problems in the tunnel construction, the road gene construction is rough line, not a control project, each project is low attention, which makes the project construction problems occur frequently. In the last ten years or so, the problems of slope construction in highway roadbed construction have been exposed especially. Therefore, the stability of highway slope is judged accurately, and corresponding measures are put forward, so that the landslide treatment of the project is safe. According to the landslide of Tonghuang Expressway, the engineering geology, meteorological and hydrological characteristics, landform and landform, stratigraphic lithology and basic geological conditions of landslide are expounded in this paper. Combined with these engineering geological conditions, according to field investigation and drilling test, the occurrence conditions and characteristics of landslide are studied from the aspects of sliding body characteristics, deformation and failure characteristics, sliding surface, etc. Based on the characteristics of deformation, structure, sliding zone soil and sliding surface, the causes of landslide are put forward. It is understood that the main sensitive factors affecting the formation of landslide here are weak structural plane and high imminent condition. Finally, according to the actual engineering conditions, comprehensive economy, practicability and necessity, the project of landslide control is put forward. The concrete engineering measures include anti-slide pile. The protection methods of anti-slide retaining wall, window frame slope protection and drainage measures, as well as the relevant matters needing attention in the construction of landslide protection measures, are discussed in this paper, which is based on the actual project of Cu-Huang Expressway. This paper probes into the causes of landslide formation and the countermeasures of landslide treatment, which has certain reference and reference significance for the future disposal of similar landslide on expressway.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P642.22;U418.55

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