摘要：桩基技术极为复杂，发展空间相当广阔，成为地基基础领域中一个非常活跃的、具有很强生命力的分支领域，50年来出现了许多新的桩型、新的工艺、新的设计理论和新的科技成果，成为我国工程建设的有力支柱。本设计是十四层办公大楼的桩基础设计，本设计的主要思路是根据地质勘察资料、施工条件和工程要求，确定桩基础的桩型、桩的断面尺寸和长度、单桩容许承载力、桩的数量和平面布置以及承台的尺寸和构造，再根据承受的荷载验算桩基承载力，估算沉降量并验算桩和桩承台的强度。通过设计桩基础要达到掌握桩基设计计算的具体原理及主要设计步骤，更深入地理解桩基工程特性。

关键词：桩基础；设计思路；自身收获

Abstract：Technique of pile is extremely complex, development space is very wide, become the foundation in the field of a very active, has great vitality in the field 50 years, appeared a lot of new pile type, new technology, new design theory and the latest scientific and technological achievements, to become China's construction of a strong pillar. This design is fourteen storey office building pile foundation design, the main train of thought of the design is based on the information of geological exploration, construction conditions and project requirements, determine the pile foundation pile, pile length, section size and the capacity of single pile, pile number and layout and the size and structure of the table, and then according to the load bearing capacity of pile foundation settlement calculation, estimation and calculation of pile and pile cap strength. Through the design of pile foundation to achieve mastery of pile foundation design and calculation of specific principles and the major design steps, more in-depth understanding of pile foundation engineering characteristics.

Key words：Pile foundation；Design ideas；The harvest