林本海  刘玉树
    （广东省建筑设计研究院  广州 510010）

[提要]  对广州地区嵌岩桩基中经常遇到的持力层下存在软弱下卧层的设计原则和设计方法进行了讨论，结合工程实例给出了地基承载力验算和变形控制的计算方法，对类似工程有参考意义。
[关键词]  嵌岩桩  软弱下卧层  承载力验算  变形控制

The designing method of the pile embedded rock when the pile bearing stratum is on the soft intercalation is grasping three controlling indexes, which are bearing capacity, settlement and strength of pile. And a project example how to calculate the bearing capacity and settlement is introduced.
Keywords: design method; cast-in place piles embedded rock; soft substratum; calculating bearing capacity; settlement