广州白云国际会议中心岩溶地基的稳定性分析与评价  

The Stability Analysis and Evaluation of Guangzhou Baiyun International Convention Center in Karst Region

作　　者：伍四明[1] 刘勇健[2] 

机构地区：[1]广东省建筑设计研究院,广州510010 [2]广东工业大学,广州510006

出　　处：《广州建筑》2009年第5期45-49,共5页GUANGZHOU ARCHITECTURE

摘　　要：广州白云国际会议中心的工程地质条件复杂,岩溶非常发育,通过详细勘察和施工阶段勘察,基本查明场地的工程地质条件和岩溶特征。本工程采用桩基础,主要采用预应力混凝土管桩基础,重要部位采用钻(冲)孔桩基础,主要利用灰岩作为桩端持力层。本文对岩溶桩基的稳定性进行了定性、定量分析,并得到了一些有意义的结论,最后对岩溶地基稳定性进行了评价,将岩溶桩基的稳定性分为稳定、基本稳定和不稳定三类,并对不稳定的岩溶桩基提出了处理建议。The engineering geological conditions of Guangzhou Baiyun International Convention Center are complicate and the karsts are fully developed. The engineering geological conditions and karst are identified through detailed and additional investigation. The pile foundations are used, prestressed concrete pile foundation mainly used, percussion boring pile foundation used in key position, whose bearing strata are limestone. The paper analyzes the stability of pile foundation with qualitative and quantitative methods, and draws some useful conclusions, and makes evaluation on the stability of pile foundation. The stability of pile foundation is divided into three types-- stableness, capital stableness, unstableness, and measures are proposed for unstable pile foundation.

关 键 词：广州白云国际会议中心 工程地质条件 岩溶 桩基工程 持力层安全厚度 稳定性分析与评价 

分 类 号：TU473.1[建筑科学—结构工程]