溶洞地区某工程桩基础施工技术研究  

Research on Construction Technology of a Pile Foundation Project in Karst Cave Area

作　　者：庄玉海 ZHUANG Yu-hai(Guangzhou City Construction ＆ Development Co., Ltd., Guangzhou 510006)

机构地区：[1]广州市城市建设开发有限公司,广州510006

出　　处：《广州建筑》2018年第1期41-44,共4页GUANGZHOU ARCHITECTURE

摘　　要：以实际工程为例,研究了溶洞地区的桩基础施工技术。阐述了全套管桩、旋挖桩、冲孔桩三种灌注桩型的特点、施工流程及施工难点,并提出了相应的解决措施。通过试验桩施工,从成桩情况、成本及工期等方面分析比较了该三种桩型的优劣,选择了适合本工程的合理桩型。最后对溶洞地区桩基础施工技术的研究提出了展望。Based on the background of an actual project, the construction technology of pile foundations in the Karst cave areas are studied in this paper. The characteristics, construction procedures and construction difficulties of three different types of east-in-place piles, i.e., full-casing piles, rotary drilled piles and punching piles, are elab- orated in this paper, and corresponding solutions are also proposed. Through the construction of tested piles, the ad- vantages and disadvantages of these three types of piles are analyzed from the aspects of pilling completion, cost and construction period. Based on the systematic comparison between them, the reasonable pile type which suitable for the investigated project is selected. Finally, the prospects for the research on the construction technology of the pile foundation in the Karst cave area are discussed.

关 键 词：溶洞 桩基础 施工技术 

分 类 号：TU753[建筑科学—建筑技术科学]