广州白云国际会议中心岩溶地基的稳定性分析与评价
|
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.
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.
引文
[1]广东省建筑设计研究院,广东省工程勘察院.广州白云国际会议中心岩土工程勘察报告[R],2005.
[2]中华人民共和国国家标准编写组.GB50021–2001岩土工程勘察规范[S].北京:中国建筑工业出版社,2002.
[3]《工程地质手册》编写委员会.工程地质手册(第四版)[M].北京:中国建筑工业出版社,2002.
[4]广东省地震工程实验中心.广州市白云国际会议中心工程场地地震安全性评价报告[R],2005.
[5]中国地质科学院岩溶地质研究所.广州白云国际会议中心跨孔电磁波透视CT层析成像隐伏岩溶探测成果报告[R],2005.
[6]DBJ15-31-2003建筑地基基础设计规范[S].北京:中国建筑工业出版社,2003.
[7]赵明华,等.岩溶区桩端持力层岩层安全厚度计算研究[J].公路,2003(1):124-128.
[8]GB50010-2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.
[2]中华人民共和国国家标准编写组.GB50021–2001岩土工程勘察规范[S].北京:中国建筑工业出版社,2002.
[3]《工程地质手册》编写委员会.工程地质手册(第四版)[M].北京:中国建筑工业出版社,2002.
[4]广东省地震工程实验中心.广州市白云国际会议中心工程场地地震安全性评价报告[R],2005.
[5]中国地质科学院岩溶地质研究所.广州白云国际会议中心跨孔电磁波透视CT层析成像隐伏岩溶探测成果报告[R],2005.
[6]DBJ15-31-2003建筑地基基础设计规范[S].北京:中国建筑工业出版社,2003.
[7]赵明华,等.岩溶区桩端持力层岩层安全厚度计算研究[J].公路,2003(1):124-128.
[8]GB50010-2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2002.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心