条形基础下刚-柔性桩复合地基设计方法研究

STUDY ON DESIGN METHOD OF COMPOSITE FOUNDATION WITH RIGID-FLEXIBLE PILES UNDER STRIP FOUNDATION

刚-柔性桩复合地基是近年才发展起来的一种新型地基处理方式,其理论的发展明显地落后于工程实践,尚未形成比较完善的设计理论和计算方法。应用条形基础下刚-柔性桩复合地基实用简化的设计方法对工程实例进行优化设计,结果表明,刚-柔性桩复合地基能合理发挥刚性桩、柔性桩以及土体的力学性能,有显著的经济效益。

Composite foundation with rigid-flexible piles is a new method developed in recent years for ground treatment, but its theory development lags obviously behind the practice, yet there have been no perfect design theory and calculation method established. A practical and simple design method is applied to the optimization of the composite foundation with rigid-flexible piles under strip foundation in an engineering case. The result shows that this foundation can rationally utilize the potentiality of rigid piles, flexible piles and soil bearing capacity, having remarkable economic benefits.