摘要
:孔压静探试验 (简称 CPTU)在国内是一项尚待推广的土体原位测试新技术 ,着重介绍了在珠江三角洲高速公路工程建设中的孔压静探试验研究成果 ;提出了新的土分类图及不排水抗剪强度的估算公式 ;试验结果表明 ,孔压静探试验估算的固结系数 Ch较室内试验估算的固结系数大 1～ 2个数量级 。
Piezocone penetration test (CPTU) is the new in situ testing technique which needs to be introduced in China.The test and research results of CPTU and lab.in Pearl River Delta have been presented here.New soil classification chart and undrained shear strength ( c u) based on CPTU are developed in this paper.The test results show that the consolidation coefficient ( C h) evaluated by CPTU is 1-2 greater than the consolidation coefficient ( C v) determined in lab and approximates to C v obtained by inversion calculation through field consolidation subsidence observation data.
出处
《地质科技情报》
CAS
CSCD
北大核心
2000年第1期81-84,共4页
Geological Science and Technology Information
基金
广东省科委"孔压静力触探试验在珠江三角洲软土地区中的应用研究"项目
关键词
孔压静探试验
珠江三角洲
固结系数
软土
piezocone penetration test (CPTU)
Pearl River Delta
consolidation coefficient
undrained shear strength
