摘要
石灰岩溶洞中桩基施工存在成桩困难与质量、成本失控问题。采用冲击锥形锤,添加抛填料,筑暗筑堤作为护壁,可以实现再溶洞泥砂中可靠成桩。溶洞中抛填料的经验公式,为报价、备料提供了准备。通过具体工程实例,表明采用溶洞成桩技术可以使桩身完好,达到质量要求。
The difficulties of pile-forming and quality, cost control exist in pile foundation construction of limestone cave. Pile-forming is reliable by using impact hammer, adding parabolic fill and building dikes as the protective wall. The empirical formula of parabolic fill in cave is prepared for price and preparation. Through specific examples of projects, it indicates that pile-forming technology in cave can make pile intact to meet quality requirement.
出处
《施工技术》
CAS
北大核心
2008年第4期112-113,117,共3页
Construction Technology
关键词
桩基工程
溶洞
冲击锥形锤
抛填料
筑暗筑堤
施工
pile foundation engineering
cave
impact hammer
parabolic fill
building dike
construction
