从饱和天然土的压锥侵彻试验中直接估算塑性指数

IF 3 3区工程技术 Q2 ENGINEERING, GEOLOGICAL

Canadian Geotechnical Journal Pub Date : 2023-07-25 DOI:10.1139/cgj-2023-0106

N. Ramsey, K. Tho

{"title":"从饱和天然土的压锥侵彻试验中直接估算塑性指数","authors":"N. Ramsey, K. Tho","doi":"10.1139/cgj-2023-0106","DOIUrl":null,"url":null,"abstract":"Plasticity Index, Ip, is a relatable parameter for most geotechnical engineers, because Ip can be used to estimate other soil properties, such as internal friction angle, compression index and low strain shear modulus. Consequently, a method for estimating Ip directly from a piezocone penetration test (CPTU) which measures cone resistance, sleeve friction and pore pressure would be useful for many practising geotechnical engineers. This technical note presents a method for estimating Ip profiles entirely from CPTU data. The new method has been calibrated using a case database of 258 complementary measurements taken, in natural soils, at 25 globally distributed marine sites.","PeriodicalId":9382,"journal":{"name":"Canadian Geotechnical Journal","volume":"2 1","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Estimating Plasticity Index Directly from Piezocone Penetration Tests in Saturated Natural Soils\",\"authors\":\"N. Ramsey, K. Tho\",\"doi\":\"10.1139/cgj-2023-0106\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Plasticity Index, Ip, is a relatable parameter for most geotechnical engineers, because Ip can be used to estimate other soil properties, such as internal friction angle, compression index and low strain shear modulus. Consequently, a method for estimating Ip directly from a piezocone penetration test (CPTU) which measures cone resistance, sleeve friction and pore pressure would be useful for many practising geotechnical engineers. This technical note presents a method for estimating Ip profiles entirely from CPTU data. The new method has been calibrated using a case database of 258 complementary measurements taken, in natural soils, at 25 globally distributed marine sites.\",\"PeriodicalId\":9382,\"journal\":{\"name\":\"Canadian Geotechnical Journal\",\"volume\":\"2 1\",\"pages\":\"\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2023-07-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Canadian Geotechnical Journal\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1139/cgj-2023-0106\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, GEOLOGICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian Geotechnical Journal","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1139/cgj-2023-0106","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}

引用次数: 0

摘要

对于大多数岩土工程师来说，塑性指数Ip是一个相关的参数，因为Ip可以用来估计土壤的其他特性，如内摩擦角、压缩指数和低应变剪切模量。因此，直接从测量锥体阻力、套筒摩擦和孔隙压力的压锥贯入试验(CPTU)中估计Ip的方法对许多执业岩土工程师来说是有用的。本技术说明提出了一种完全从CPTU数据估计Ip剖面的方法。新方法已经使用在全球分布的25个海洋地点的自然土壤中进行的258次补充测量的案例数据库进行了校准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Estimating Plasticity Index Directly from Piezocone Penetration Tests in Saturated Natural Soils

Plasticity Index, Ip, is a relatable parameter for most geotechnical engineers, because Ip can be used to estimate other soil properties, such as internal friction angle, compression index and low strain shear modulus. Consequently, a method for estimating Ip directly from a piezocone penetration test (CPTU) which measures cone resistance, sleeve friction and pore pressure would be useful for many practising geotechnical engineers. This technical note presents a method for estimating Ip profiles entirely from CPTU data. The new method has been calibrated using a case database of 258 complementary measurements taken, in natural soils, at 25 globally distributed marine sites.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Canadian Geotechnical Journal 地学-地球科学综合

CiteScore

7.20

自引率

5.60%

发文量

163

审稿时长

7.5 months

期刊介绍： The Canadian Geotechnical Journal features articles, notes, reviews, and discussions related to new developments in geotechnical and geoenvironmental engineering, and applied sciences. The topics of papers written by researchers and engineers/scientists active in industry include soil and rock mechanics, material properties and fundamental behaviour, site characterization, foundations, excavations, tunnels, dams and embankments, slopes, landslides, geological and rock engineering, ground improvement, hydrogeology and contaminant hydrogeology, geochemistry, waste management, geosynthetics, offshore engineering, ice, frozen ground and northern engineering, risk and reliability applications, and physical and numerical modelling. Contributions that have practical relevance are preferred, including case records. Purely theoretical contributions are not generally published unless they are on a topic of special interest (like unsaturated soil mechanics or cold regions geotechnics) or they have direct practical value.