中国现行标准中利用静力触探划分土层土类综述  

Review on soil stratigraphy and classification by cone penetration test in the current standards of China

作　　者：何风雨[1] 马淑芝[2] HE Fengyu;MA Shuzhi(China Railway Major Bridge Reconnaissance&Design Institute Co.,Ltd.,Wuhan 430050,China;Engineering Faculty,China University of Geosciences,Wuhan 430074,China)

机构地区：[1]中铁大桥勘测设计院集团有限公司,湖北武汉430050 [2]中国地质大学(武汉)工程学院,湖北武汉430074

出　　处：《水利水电快报》2023年第8期53-59,共7页Express Water Resources & Hydropower Information

摘　　要：为深入了解中国各类标准关于静力触探划分土层土类的相关内容,以在工程勘察中更好地应用静力触探测试技术,就中国现行各类标准中静力触探在土层划分与工程分类方面的条文及说明进行综述。讨论了在土层界面划分时应综合考虑的地区经验、钻孔资料、静力触探界面效应、贯入曲线特征及各分层内贯入阻力的变化幅度等相关规定,分析了在土类定名时涉及到的静力触探参数分层统计方法和土的工程分类图等的异同及特点,并以海太过江通道为例展示了静力触探在土层划分及土的工程分类中的应用。结果表明:确定土层界面时,应综合考虑钻探、地域经验、界面效应、触探参数值等多方面因素;划分土层与工程分类时,需结合静力触探曲线形态综合判定;可采用静力触探的土工程分类图确定土名。In order to have a deep understanding of soil stratigraphy and classification by cone penetration test in the current design standards of China,and improve the engineering applicability of the cone penetration test technology,the provisions and descriptions about cone penetration test in soil stratigraphy and soil classification by referencing the existing standards in China were reviewed.Provisions of various factors(regional experience,borehole data,interface effect of static penetration test,characteristics of penetration curves,and variation range of penetration resistance in each layer)that shall be comprehensively considered on the determination of soil stratigraphy were discussed.The differences and characteristics of the layered statistical methods of cone penetration parameters and the engineering classification charts that should be used in soil classification were analyzed.Furthermore,Haitai River Crossing Channel was taken as an example to demonstrate the application of cone penetration test in soil layer and soil engineering classification.The results showed that various factors should be comprehensively considered when the soil stratigraphy interface was determined,such as drilling data,regional experience,interface effects,and the cone penetration test values;it was necessary to consider the morphology of cone penetration test curve in soil stratigraphy and soil classification;engineering classification map could be used to determining the soil name.

关 键 词：静力触探 土层划分 工程分类 现行标准 

分 类 号：TU413[建筑科学—岩土工程]