天津滨海新区市政道路工程软土地基处理
发布时间：2018-07-26 18:05
【摘要】：随着天津滨海新区经济的快速发展，市政基础设施也大量建设。滨海新区分布着大量软土，如何在软土地基上修建道路，确保路基既安全稳定又经济合理，成为道路建设中的关键问题，，针对此问题，本文开展了以下工作。 首先按照处理机理对常用的软土地基处理方法进行分类，针对不同方法在天津滨海新区道路地基处理中的适用性进行了评价。综合比较多种处理方法，加筋垫层法因具有节约投资、施工便捷、实践经验丰富和工期短等的优势，成为天津滨海新区道路软土地基处理的优选方法。 市政道路的稳定问题一般不突出，重点在于控制沉降。以天津滨海新区及周边3个道路工程为例，研究了加筋垫层法在取土坑段、吹填区段和盐田虾池范围工程中的应用，探讨了选择滨海新区软土地基处理方式的影响因素；根据影响因素提出不同处理方案，并对其进行技术和经济比选，选出最优处理方式；对其地基沉降进行分析和预测，确定了沉降观测的内容和方法，并对观测结果进行了分析。 本文成果对市政道路工程软土地基处理方式的确定具有一定的借鉴意义。
[Abstract]:With the rapid economic development of Tianjin Binhai New area, municipal infrastructure is also a large number of construction. There is a large amount of soft soil distributed in Binhai New area. How to build roads on soft foundation to ensure roadbed safety, stability and economy is the key problem in road construction. In view of this problem, the following work has been carried out in this paper. Firstly, according to the treatment mechanism, the commonly used soft soil foundation treatment methods are classified, and the applicability of different methods in the road foundation treatment of Tianjin Binhai New area is evaluated. Compared with many treatment methods, reinforced cushion method has the advantages of saving investment, convenient construction, rich practical experience and short construction period, etc., so it has become the best selection method for the treatment of soft soil foundation on the road in Tianjin Binhai New area. The stability of municipal roads is generally not prominent, the focus is to control the settlement. Taking Tianjin Binhai New area and its surrounding three road projects as examples, this paper studies the application of reinforced cushion method in the project of taking soil pits, filling sections and shrimp ponds in salt fields, and probes into the factors affecting the selection of treatment methods for soft soil foundation in Binhai New area. According to the influencing factors, different treatment schemes are put forward, and the technical and economic comparison is carried out to select the optimal treatment method, and the settlement of the foundation is analyzed and forecasted, the contents and methods of settlement observation are determined, and the observation results are analyzed. The results of this paper can be used for reference in determining the treatment mode of soft soil foundation in municipal road engineering.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.1
本文编号：2146857
[Abstract]:With the rapid economic development of Tianjin Binhai New area, municipal infrastructure is also a large number of construction. There is a large amount of soft soil distributed in Binhai New area. How to build roads on soft foundation to ensure roadbed safety, stability and economy is the key problem in road construction. In view of this problem, the following work has been carried out in this paper. Firstly, according to the treatment mechanism, the commonly used soft soil foundation treatment methods are classified, and the applicability of different methods in the road foundation treatment of Tianjin Binhai New area is evaluated. Compared with many treatment methods, reinforced cushion method has the advantages of saving investment, convenient construction, rich practical experience and short construction period, etc., so it has become the best selection method for the treatment of soft soil foundation on the road in Tianjin Binhai New area. The stability of municipal roads is generally not prominent, the focus is to control the settlement. Taking Tianjin Binhai New area and its surrounding three road projects as examples, this paper studies the application of reinforced cushion method in the project of taking soil pits, filling sections and shrimp ponds in salt fields, and probes into the factors affecting the selection of treatment methods for soft soil foundation in Binhai New area. According to the influencing factors, different treatment schemes are put forward, and the technical and economic comparison is carried out to select the optimal treatment method, and the settlement of the foundation is analyzed and forecasted, the contents and methods of settlement observation are determined, and the observation results are analyzed. The results of this paper can be used for reference in determining the treatment mode of soft soil foundation in municipal road engineering.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.1
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本文编号：2146857
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