延西高速公路路堑边坡防护治理措施研究

发布时间：2018-04-13 22:43

本文选题：公路 + 边坡　；参考：《长安大学》2015年硕士论文

【摘要】：延西高速公路处于陕西黄土高原,该地区绝大部分是厚层黄土覆盖、千沟万壑,地形地貌尤为复杂,地表植被稀少、地表植被遭到破坏经流水长期强烈侵蚀及恶劣的自然环境水土流失相当严重,给公路边坡产生崩塌、滑坡、泥石流等病害创造了有利条件。而合理完善的边坡防护措施可以降低公路边坡发生病害的机率,所以做好公路路堑边坡防护治理措施研究可以使在建工程边坡的养护管理成本降低、施工安全、生态环境等重大意义。在结合国际国内边坡防护措施先进技术的基础上,总结分析延西高速公路沿线自然环境特点及工程地质特征。并且依托延西高速公路建设项目,总结路堑边坡施工常见安全隐患;实地调查延西高速边坡灾害发生的情况,对其进行总结分类并结合工程实例进行研究。针对降雨、地下水对边坡的软化、潜蚀作用进行详细研究,并结合延西高速公路的工程实例分析它们对边坡稳定性的影响及作用;结合工程实例详细介绍工程开挖对边坡灾害的诱发原因及治理的措施。通过上述研究,结合延西高速公路沿线特点及边坡加固防护设计理论,提出适合延西高速公路黄土边坡、岩质边坡、土-岩二元结构边坡等边坡的防护加固措施;通过工程实例提出边坡防护治理应着重生态环保,防护治理需工程防护与生物防护紧密结合的综合处置措施。
[Abstract]:The Yanxi Expressway is located on the Loess Plateau of Shaanxi Province. The vast majority of the area is covered with thick loess, with thousands of gully valleys. The topography and geomorphology are especially complex, and the vegetation on the surface is scarce.The destruction of surface vegetation caused by income's strong erosion for a long time and the severe soil and water loss of the natural environment have created favorable conditions for the collapse, landslide, debris flow and other diseases of highway slope.The reasonable and perfect slope protection measures can reduce the probability of highway slope disease, so doing well the research of highway cutting slope protection and treatment measures can reduce the maintenance and management cost of the slope under construction, and make the construction safe.Ecological environment and other important significance.Based on the advanced technology of slope protection measures at home and abroad, the natural environment and engineering geological characteristics along Yanxi expressway are summarized and analyzed.And based on the Yanxi expressway construction project, summed up the common safety risks in the construction of cutting slope; field investigation of the occurrence of high speed slope disasters in Yanxi, summarized the classification and combined with engineering examples to study.The effects of rainfall and groundwater on slope stability are studied in detail, and combined with the engineering examples of Yanxi Expressway, the influence and effect of them on slope stability are analyzed.Combined with engineering examples, this paper introduces in detail the causes of slope disasters caused by excavation and the measures to be taken to control them.Through the above research, combined with the characteristics along the Yanxi Expressway and the theory of slope reinforcement design, this paper puts forward the protective and strengthening measures suitable for the loess slope, the rock slope and the soil-rock dual structure slope of the Yanxi Expressway.Through engineering examples, it is pointed out that ecological environmental protection should be emphasized in slope protection treatment, and comprehensive disposal measures should be taken in combination of engineering protection and biological protection.
【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】：U417.1

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