【摘要】 PCC桩是一种主要应用于软土地基处理的刚性桩。以PCC桩复合地基为研究对象,基于PCC桩-土-垫层所组成的一个工作体系,考虑桩-土-垫层体系的工作特性及相互影响,对PCC桩进行分析提出了一种PCC桩复合地基模量计算方法,进而推导出PCC桩复合地基的桩土应力比、沉降简化计算公式。同时,运用工程实例进行验证。计算结果说明提出的解答是合理的,能够满足实际要求。更多还原

【Abstract】 The cast-in-situ concrete thin-wall pipe pile (PCC pile) is a kind of rigid pile applied mainly to soft foundation treatment. Based on the working performance and mutual influence of the system of PCC pile-soil-cushion, PCC pile composite foundation is discussed in elastic method. A new calculation method of composite modulus of the PCC pile composite foundation is developed. Furthermore, pile-soil stress ratio and settlement can be derived from the proposed method. And it is proved that the method is practicable and applicable in the field by a practical engineering.更多还原