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      林本海  劉玉樹
    （廣東省建筑設(shè)計(jì)研究院  廣州 510010）

[提要]  對(duì)廣州地區(qū)嵌巖樁基中經(jīng)常遇到的持力層下存在軟弱下臥層的設(shè)計(jì)原則和設(shè)計(jì)方法進(jìn)行了討論，結(jié)合工程實(shí)例給出了地基承載力驗(yàn)算和變形控制的計(jì)算方法，對(duì)類似工程有參考意義。
[關(guān)鍵詞]  嵌巖樁  軟弱下臥層  承載力驗(yàn)算  變形控制

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