1)宜昌市建筑设计研究院,443000； 2)广东交通职业技术学院,广州,510650；3)广东工业
大学建筑设计研究院,广州,510075。
［提要］  针对某山区建筑场地不均匀地基在施工中出现桩孔塌方的实际问题，在充分分析桩端土和桩周土性质的基础上，结合圆砾层承载能力高的特点，考虑桩顶承台承担一部分荷载，提出桩和承台联合承载的设计方法。桩按普通桩基设计，要求桩端承载力和桩身承载力都满足设计荷载要求，承台类似于天然地基上的浅埋基础，桩和承台协同工作，沉降一致。
［关键词］  山区地基  桩  承台  复合基础
Application of Pile and Pilecap Platform Compound Foundation in Mountain Area/Zhang Xingxiang1，Lu Guanhong2，Zeng Chunyan3 (1 Yichang Architectural Design & Research Institute，Yichang 443000, China；2 Guangdong Communication Poly Technic Institute，Guangzhou 510510，China; 3 Architectural Design & Research Institute of Guangdong University of Technology，Guangzhou 510075，China )
Abstract:Based on the pile hole collapse problem in constructing uneven settlement foundation in mountain area, analyzing fully the properties of soil around pile end and pile shaft, and considering high capacity of pudding stone stratum, a design method is given that loads are bored by both piles and pile caps. In the design method, piles are designed as common piles, and the capacities of pile end and body should all meet design requirements, while pilecap platform is considered as shallow foundation on natural soil.The pile and pilecap platform work together and the settlements of them are the same.
Keywords:foundation soil of mountain area； pile； pilecap platform； composite foundation