[北京]高层住宅楼cfg桩复合地基处理设计及施工方案..doc

分类号 密级 XX（XX） 毕 业 设 计（论 文） 题 目 XXC地块A05号住宅楼CFG桩复合地基处理设计及施工 英文题目 学生姓名 院（系） XX学院 专 业 土木工程 学 号 指导教师 职 称 教授 摘 要 目前，随着我国经济的高速发展，工程建设规模和数量的急剧扩大，对原有天然软弱地基的处理成为工程设计和施工中越来越被关注的环节之一。CFG桩复合地基法以其用材经济、施工快捷、加固效果良好等优点在工程实践中得到了广泛的应用，特别是近年来CFG桩复合地基多种设计方法的提出与实践，极大地推动了复合地基理论和实践的发展，丰富了工程建设中的地基处理技术。 本文首先仔细回顾了复合地基的一些发展历史和研究成果；其次，在现有CFG桩复合地基研究成果的基础上对CFG桩复合地基承载特性、作用机理作了相应的分析和介绍；再次，结合实际工程——XXC地块A05号住宅楼CFG桩复合地基处理，按照CFG桩复合地基进行了地基设计计算，用恰当的模型验算了相应复合地基的承载力与沉降量，验证了理论的可行性；最后，结合实际工程对CFG桩复合地基的施工工艺作了较为系统的介绍。 关键词： CFG桩； 复合地基； 承载力； 沉降量 ABSTRACT Nowadays, with Chinas rapid economic development and rapid expansion of the scale and quantity in engineering construction，treatment technology of weak foundation in originally natural status become one of the key problem gradually in geotechnical designing and practicing. As its great advantages such as economical material, fast speed of construction and perfect effect on consolidating, method of CFG piles composite foundation has been widely used, particularly in recent years when various methods of design and practice are applied for CFG piles composite foundation，which has greatly promoted the development of theory and practice of composite foundation and enriched the technology of foundation treatment in engineering construction. Firstly, some development history and research results of composite foundation was reviewed in this article; Secondly, based on the existing research results of CFG piles composite foundation, the load-bearing characteristics and the mechanism of CFG piles composite foundation was systematically analysised and introduced; Once again, treatment technology of CFG piles composite foundation is applied in a real engineering construction, foundation treatment of building A05, C segment in Changying. Design and calculation