土工格栅加筋垫层用于处理特殊地基
摘要:某地两幢拟建于软土地基上的建筑物,原设计均采用PHC管桩基础。在桩基施工过程中分别发现软基中有大量孤石和条石(古码头遗址),桩基无法施工。经多方论证,最后采用水泥搅拌桩复合地基配合土工格栅加筋垫层的处理方案。其中一幢建筑已竣工,经现场荷载试验和沉降观测检验,地基承载力和沉降完全满足工程要求,且降低了造价。
Abstract:Two multi-story buildings are built at soft ground conditions. PHC pipe pile foundation is proposed in the original design. The installation of PHC pipe piles are blocked by boulders and strip stone foundation of the old port relic. After further investigation and study, an alternative design using of Deep Cement Mixing Columns with geogrid reinforced underlying layer was proposed to replace the PHC pipe piles. One of the two buildings is constructed. The plat loading test and settlement monitoring results show that the bearing capacity of the composite foundation and the building settlements satisfy the design criteria and specifications. Comparing to original design, the alternative design is more cost-effective.
中文标题：
土工格栅加筋垫层用于处理特殊地基
Geogrid Reinforcement Cushion for Special Ground Treatment
作者：
郭力群,马时冬
Guo Liqun,Ma Shidong
作者简介:郭力群,1970年生,男,汉族,福建泉州人,讲师,主要从亊软基处理与基础工程研究工作。E-mail:guoliqun@hqu.edu.cn
通讯地址：
华侨大学土木工程学院, 福建泉州 362021
CollegeofCivilEngineering,HuaqiaoUniversity,QuanzhouFujian362021China
中图分类号:TU472.99
出版物：岩土工程技术
收稿日期:2005-03-02
关键词:天然地基,土工格栅加筋垫层地基,水泥搅拌桩复合地基,特殊地基
Key words:natural foundation,geogrid reinforcement cushion foundation,composite foundation with deep mixing pile,special ground
文档包含图片数量：图片(0)张
文档包含表格数量：表格(0)个
参考文献：
基金项目：
基金项目: 华侨大学科研基金资助项目(04HZR15)
- 文件大小:
- 562.18 KB
- 下载次数:
- 60
-
高速下载
|
