摘要
实践证明,即使与75mm的薄壁活塞土样相比,直径为250mm的块状土样的质量也是非常好的。因此,优质块状土样的三轴和固结室内试验结果为孔压原位静探测试结果的相关性分析提供了最佳的对比参数。以软粘土为研究对象,提出了孔压静探参数与块状土样不排水抗剪强度、先期固结压力及超固结比之间的新一代相关关系。
The blocky soil samples with 250 mm diameter have been proved to be of superior quality compared even with the soil samples of thin-wall piston with 75 mm diameter. Therefore triaxial and oedometer tests on the blocky soil samples can give the best reference parameters for correlation to CPTU measurements. A new generation of correlation factors among CPTU parameters,undrained shear strength,pre-consolidation stress and over-consolidation ratios are developed for soft clays. It is the authors?opinion that for important projects a combination of CPTU tests and blocky soil samples will give reliable design parameters leading to significant cost savings.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第19期3262-3267,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
福建省青年科技人才创新项目基金(2003J022)
教育部留学回国人员科研启动基金(2002-247)
华侨大学高层次人才科研基金(03BS203)资助课题
关键词
土力学
块状土样
孔压静探解释
软粘土
soil mechanics,blocky soil samples,CPTU interpretation,soft clay
