人工挖孔嵌岩桩设计的探讨  

Discussion on Design of Men-excavated Rock-socketed Piles

作　　者：胡艳东 

机构地区：[1]唐山中冶地岩土工程有限公司,唐山063000

出　　处：《华北地震科学》2014年第B08期29-33,共5页North China Earthquake Sciences

摘　　要：以某水泥厂石灰石储库桩基设计为例．分析了嵌岩桩承载机理．阐述了单桩竖向承载力设计计算方法．得出火直径嵌入中风化峰硬岩石的灌注桩承载能力以桩身强度控制为主的结论。指出人工挖孔嵌岩桩在坚硬岩石内扩底的设计方法是错误的．只能造成浪费。使初步从事此类工程勘察设计的技术人员能够正确认识嵌岩桩问题。Take example for the design of the pile foundation of a limestone storehouse in a cement factory, it analyzes the load-bearing mechanism of the rock-socketed pile, and expounds the calculation method of vertical bearing capacity of the single pile, and arrives at the conclusion that the bearing capacity of the large-diameter embedded caisson pile should give priority to the intensity control of the pile. It points out that the design method of the artificial digging in a socketed pile in the hard rock expand base is incorrect and this creates waste. The paper aims to help the technical personnel who are exploiting and designing such projet at a preliminary stage gain a correct understanding about the question of rock-socketed pile.

关 键 词：人工挖孔 嵌岩桩 设计 

分 类 号：TU473[建筑科学—结构工程]