（1 广州容柏生建筑结构设计事务所， 广州  510170； 2 广东建科建筑工程技术开发有限公司岩土分公司， 广州  510599）

［摘要］对某岩溶强发育地区项目，根据其竖向力小但抗浮要求高的特点，设计中对预应力管桩、灌注桩及刚桩桩复合地基基础进行造价、施工难度以及工期等方面的全面比较。最终采用了刚性桩复合地基基础，有效地解决了此类岩溶强发育地区基础工程的难点，在确保安全的前提下实现了工期和造价可控。

［关键词］溶洞； 刚性桩复合地基； 工期； 造价

中图分类号：TU398-7文献标识码：A文章编号：1002-848X(2020)04-0136-04

Application of rigid pile composite foundation in a large amusement project in karst area

Li Dongcun1, Liao Yun1, Gu Lanfang2, Sha Xianglin2

（1 RBS Architectural Engineering Design Associates, Guangzhou 510170, China; 2 Guangdong Jian Ke Construction Engineering Technology Development Co., Ltd.， Geotechnical Branch Company, Guangzhou 510599, China）

Abstract:According to the characteristics of small vertical force but high anti-floating requirement, the cost, construction difficulty and construction period of prestressed pipe pile, cast-in-place pile and rigid pile composite foundation were compared comprehensively in the design of a project in a strong karst development area. Finally, the rigid pile composite foundation was adopted, which effectively solved the difficulties of foundation engineering in this kind of karst strong development area, to realize the controllable construction period and cost on the premise of ensuring safety.

Keywords:karst cave; rigid pile composite foundation; construction period; cost

作者简介：李东存，学士，高级工程师，一级注册结构工程师，Email：lidongcun @gzrbs.com。