东新高速公路工程软土路基施工技术研究

发布时间：2018-05-05 21:31

本文选题：公路工程 + 软土路基　；参考：《西安工业大学》2014年硕士论文

【摘要】：随着我国基础设施建设的进一步加快,我国高速公路建设将呈现前所未有的发展势头。路基作为高速公路的基本载体,其施工质量越来越受到人们的关注。路基施工技术的进步直接决定了路基工程质量的优劣,软土路基的施工技术尤为重要。本文研究的主要内容是公路工程软土路基的施工技术,结合东新高速公路工程项目具体实例,对软土路基施工中的软基处理技术、路基吹砂填筑技术展开了深入细致的研究。针对公路工程具体实例的项目特点、地理位置、气候类型、地质条件、施工环境、业主要求等方面因素,对软土路基施工中软基处理的方案进行了比选,确定采用塑料排水板预压加固法进行软基处理施工,并对主要从塑料排水板的插打和土工格栅的铺设两个方面的施工技术进行了详细的研究分析与总结。同时,对路基填筑技术——吹填砂工艺的应用进行了深入细致的研究,从路基取料、设备选型、吹填砂工艺、路基护脚及排水、堆载预压施工、沉降观测、包边土施工、路基防护工程及路桥过渡段的施工等方面路基填筑技术进行了全面的研究,得到了准确的测量数据。在此基础上,采用了数据分析手段,对研究结果进行分析总结。根据本工程实际施工效果,本文采用的软土路基施工技术方案可行,施工工艺科学合理,通过软基处理及路基吹砂填筑技术的研究,有效解决了路基施工中的技术课题。通过技术成果的推广应用,保证了东新高速公路工程的项目的施工安全、质量与工期,取得了可观的技术经济效益与社会效益,进一步发展了我国路基施工技术的内容和领域,对以后类似工程的施工具有极大的借鉴意义和参考价值,为今后同类型的路基施工提供了宝贵的经验,也将对我国高速公路软土路基施工技术的进一步发展起到积极的推动作用。
[Abstract]:With the further acceleration of infrastructure construction in China, highway construction in China will present an unprecedented momentum of development. As the basic carrier of highway, the construction quality of roadbed is paid more and more attention. The progress of subgrade construction technology directly determines the quality of subgrade engineering, especially the construction technology of soft soil subgrade. The main content of this paper is the construction technology of soft soil subgrade in highway engineering. Combined with the concrete example of Dongxin Expressway project, the soft foundation treatment technology in soft soil subgrade construction and the filling technology of roadbed blowing sand are deeply and meticulously studied. In view of the project characteristics, geographical location, climate type, geological conditions, construction environment, owner's requirements and other factors of concrete examples of highway engineering, this paper compares and selects the schemes of soft foundation treatment in soft soil subgrade construction. In this paper, the preloading and strengthening method of plastic drainage plate is adopted for soft foundation treatment construction, and the construction technology is analyzed and summarized in detail mainly from the two aspects of plastic drainage board insertion and geogrid laying. At the same time, the application of roadbed filling technology-blowing sand filling technology is studied in detail, including subgrade material collection, equipment selection, sand filling technology, roadbed foot protection and drainage, surcharge preloading construction, settlement observation, surrounding soil construction, etc. The embankment filling technology of roadbed protection engineering and the construction of the transition section of road and bridge are studied comprehensively and the accurate measurement data are obtained. On this basis, the data analysis method is used to analyze and summarize the research results. According to the actual construction effect of this project, the soft soil subgrade construction technology adopted in this paper is feasible, and the construction technology is scientific and reasonable. Through the research of soft foundation treatment and roadbed blowing sand filling technology, the technical problems in subgrade construction are effectively solved. Through the popularization and application of technical achievements, the construction safety, quality and construction period of Dongxin Expressway project are guaranteed, and considerable technical economic and social benefits are obtained, and the contents and fields of roadbed construction technology in China are further developed. It has great reference significance and reference value for the construction of similar projects in the future, and provides valuable experience for the construction of the same type of subgrade in the future. It will also play a positive role in the further development of soft soil subgrade construction technology.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.1

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