公路膨胀土路堑边坡防护方法的评价-建筑与土木工程专业论文.docxVIP

硕士研究生学位论文 摘要 I 摘 要 膨胀土是具有膨胀性、多裂隙性和超固结性等特点的一种特殊性粘土。我国是膨胀 土分布最广泛的国家之一，膨胀土路堑边坡病害一直是公路建设的“老大难”问题。随 着我国公路建设的蓬勃发展，如何解决膨胀土地区边坡稳定问题，采取何种最适合的防 护方法已成为当前公路工程中一个不可忽视的重要研究课题。因此，开展膨胀土地区公 路路堑边坡防护方法的研究具有重要的现实意义。 本论文分析了膨胀土的成分、结构、物理性质及其胀缩特性，从工程实际应用角度 对膨胀土的判别和分类方法进行了分析和研究，提出了公路膨胀土的综合判别方法。根 据膨胀土路堑边坡破坏形式的特点，分析了膨胀土破坏的原因和内在机理。 本论文详细阐述了现有公路膨胀土路堑边坡的防护方法。结合膨胀土的工程特性， 从工程技术可行性、适用边坡类型、生态环保功能、道路景观、工程经济性、养护技术 性、成本分类等方面对各种防护方法进行综合评价，并建立了膨胀土路堑边坡防护方法 综合评价模型。该论文对公路膨胀土路堑边坡病害的预防与治理具有一定的指导意义。 关键词：公路；膨胀土；边坡；防护方法；评价 II Abstract 硕士研究生学位论文 Abstract The expansive soil is a kind of special clay which have swell-shrink and cranny and over consolidation characteristics etc. O ur country is one of the countries where the expansive soil is distirbuted most widely and the distribution area is the most largest, along with the booming development of the our country road construction, road expansive soil cutting slope ascent disease harm have been become “the eldest difficult” problem in road construction , how to solve expans ive soil area cutting slope stability problem, adopt most in keeping with of the protection method have become an current importance in the highway engineering research topic.Therefore, the research that develops the expansive soil area road slope ascent protection method have the important and reality meaning. The thesis analysis the composition,structure and the swell- shrink characteristic and physical property characteristics of the expansive soil, analysis and research expansive soil discretion and classification method from the engineering actual application angle, put forward road expansive soil of comprehensive discretion method. The basis expansive soil cutting slope ascent breaken characteristics, analysis the expansive soil breaken reason and inside mechanism. The thesis discusses the protection method of road expansive soil cutting slope, detailed elaborates an existing protection method, combines engineering characteristic of expansive soil, from the engineering technique