1、 本科毕业论文本科毕业论文 水泥搅拌桩加固软土地基水泥搅拌桩加固软土地基 SOFT SOIL CEMENT MIXING PILE 学院(部) : 土木建筑学院 专业班级: 学生姓名: 指导教师: 年 月 日 I 水泥搅拌桩加固软土地基 摘要 粉体搅拌桩作为软弱土地基处理的一种方法,具有施工方便、费用低廉、加固软弱 土厚度大的优点,在我国得到了广泛的应用,取得了较好的经济和社会效益;但由于对 其加固机理、 破坏机理等方面理论研究还不完善, 在实际工程应用上也出现过一些问题。 从工程的安全和经济角度出发,重大工程项目一般都要通过现场试验以确定粉喷桩复合 地基的可行性,为设计、施工及检测和监测提供
2、科学的依据。 本文介绍了粉喷桩复合 地基的加固机理、设计和施工流程及检测方法,通过现场载荷试验对该工程的加固效果 进行理论上的评价。 总之,通过本文的试验研究工作,满足了工程的需要;同时也为 该地区软弱土层的地基处理提供了一个有益的探讨。水泥搅拌桩作为一种复合地基、桩 土共同作用。施工前必须详细调查施工场地的工程地质、水文情况、土工试验资料,并 了解软弱土层的分布范围,成层结构,地下水埋深及其性质。确定水泥搅拌桩的加固材 料及含量,并通过试验桩掌握对现场的成桩经验及各种操作技术参数。施工前要有 7 天 龄期的配方资料,以验证设计参数。在水泥搅拌桩施工过程中严格控制钻机深度,粉喷 高程及停灰面,
3、确保水泥搅拌桩长度。并定时检查水泥搅拌桩的成桩直径及搅拌均匀程 度,以确保水泥搅拌桩复合地基的加固效果。 关键词关键词:软土地基,水泥土搅拌桩,粉喷,粉体,施工,检测软土地基,水泥土搅拌桩,粉喷,粉体,施工,检测 II SOFT SOIL CEMENT MIXING PILE ABSTRACT Powder mixing soft soil foundation piles as a way of dealing with the construction is convenient, affordable, and reinforced the advantages of large thi
4、ckness of soft soil in China has been widely used, has achieved good economic and social benefits; but because of the reinforcement mechanism of failure mechanism is not perfect, and so on theoretical research, in practical engineering applications are also there have been some problems. From an eng
5、ineering point of view of security and economy, major engineering projects typically go through field trials to determine the feasibility of DJM pile composite foundation for the design, construction and inspection and monitoring provide the scientific basis. This article describes the DJM pile comp
6、osite foundation reinforcement mechanism, through on-site load test the reinforcing effect of the works in theory evaluation. In short, through this pilot study, to meet the needs of the project; but also for the treatment of soft soil foundation provides a useful discussion.As a composite of cement mixing pile foundation, pile-soil interaction Determine the cement mixing pile of reinforced materials and content, and through on-site control test piles into