上海某桩基工程优化设计及运用

发布时间：2018-01-06 23:23

本文关键词：上海某桩基工程优化设计及运用　出处：《天津大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着高层建筑的快速发展，桩基础作为一种较好的深基础被广泛应用于高层建筑。在桩基础不断被应用的同时，如何在保证建筑安全和使用功能的前提下，节约成本，压缩工期，，减少环境影响等优化设计思想被越来越重视。桩基设计最重要的两点就是承载力和沉降的控制，承载力包括桩基的承载力，也包括地基土的承载力；沉降既包括整体沉降，也包括差异性沉降。本文通过对前人的研究的总结，对单桩承载力进行理论研究，进而延伸到群桩的承载力和沉降研究，并分析利用桩筏基础的桩土作用以及复合桩基的优化思想。ANSYS软件有限元分析，对单桩、群桩受力沉降进行软件分析，论证了桩基础分布思想外弱内强思想的合理性。结合工程实例冠生园项目，分别通过对其进行管桩、预制方桩进行常规设计，并采用桩筏基础、复合桩基思想进行优化设计，结合成本、工期、环境等因素综合考虑确定较优方案。
[Abstract]:With the rapid development of high-rise buildings, pile foundation is a kind of deep foundation has been widely used in high-rise buildings. The pile foundation has been used at the same time, how to ensure the construction safety and the use function under the premise of saving cost, reduce the duration, reduce the impact on the environment such as optimization design idea is more and more attention.
The most important two points of pile foundation design are the control of bearing capacity and settlement. The bearing capacity includes the bearing capacity of pile foundation and the bearing capacity of foundation soil. The settlement includes both the whole settlement and the differential settlement.
Based on previous research summary, the theoretical research of the bearing capacity of single pile, and then extended to the pile bearing capacity and settlement of the research and analysis of pile soil interaction with pile raft foundation and composite pile foundation optimization software.ANSYS finite element analysis of single pile, settlement of pile group stress analysis software pile foundation, proved the rationality of distribution outside weak inside strong ideas.
Combined with practical engineering project respectively by Guanshengyuan, pile on the precast piles of conventional design, and uses the pile raft foundation, composite pile foundation theory to optimize the design, combined with the cost, time, environment and other factors considered to determine the optimal scheme.

【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU473.1

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