摘要
长沙国际金融中心基岩为白垩系泥质粉砂岩,属极软质岩石,具有较高的承载潜能,按现行《建筑地基基础设计规范》(GB 50007-2002)确定的地基承载力往往偏低。文章通过室内单轴抗压试验、岩基载荷试验和旁压试验的对比,对该软岩地基承载力的取值进行了系统分析,提出了岩基承载力的取值原则,对同类地区类似岩基承载力取值具有参考价值。
The founding rock in the construction site of Changsha International Finance Centre is Cretaceous argillaceous siltstone which is a kind of soft rock. The bearing capacity proposed according to 'Code for design of building foundation'( GB 50007- 2011) is always too low. The bearing capacity is systematically studied through laboratory co-axial compression test,plate loading test and pressuremeter test,and the principle to determine the bearing capacity is proposed which could be a reference for similar projects.
出处
《工程勘察》
2015年第6期1-5,共5页
Geotechnical Investigation & Surveying
基金
住房和城乡建设部软科学研究项目(2012-R2-28)
关键词
泥质粉砂岩
载荷试验
旁压试验
承载力
argillaceous siltstone
loading test
PMT(pressuremeter test)
bearing capacity
