【作者】 林本海； 容柏生；

【Author】 Lin Benhai;Rong Baisheng The Architectural Design & Research Institute of Guangdong Province, Guangzhou 510010 China

【机构】 广东省建筑设计研究院；

【摘要】 本文首先对嵌岩灌注桩的承载机理进行了简要分析,嵌岩灌注桩的单桩承载力由检周土层段侧摩阻力、嵌岩段侧摩阻力和端阻力三部分组成;桩基设计应以桩身混凝土强度、地基对桩所能提供的承载力及桩体总沉降量作为三个控制标准进行设计;对具有软弱下卧层时的桩基设计方法进行了介绍;然后对嵌岩(人工挖孔)桩的三种事故类型(桩身强度不足、桩的承载力不足及桩的沉降量过大)进行了讨论,并给出具体的处理工程实例,供同行参考。更多还原

【Abstract】 At first,the bearing mechanism of cast-in place piles embedded rock is briefly analyzed.The bearing capacity consist of frictionalresistance of each part of soil and rock,and end bearing of rock.Three standard of the pile design should be observed which are the concretestrength,the bearing capacity and the settlement of pile. At the same time,the designing method of the piles when the pile bearing stratum is onthe soft intercalation and some examples of pile mishap treatment are introduced.更多还原