刚性桩复合地基基础在岩溶地区某大型游乐项目中的应用

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

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。

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.