内陆河湖相软土地基原位测试方法适用性分析  

Applicability Analysis of In-situ Testing Methods for Inland River and Lacustrine Soft Soil Foundations

作　　者：尹利华[1] 赵丽娟 裘友强 张微[2,3] Ying Li-hua;Zhao Li-juan;Qiu You-qiang;Zhang Wei(CCCC First Highway Consultants Co.,Ltd.,Xi’an 710065,Shaanxi,China;Chang’an University,Xi’an 710064,Shaanxi,China;Northwest Minzu University,Gansu 730030,Lanzhou,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,陕西西安710065 [2]长安大学,陕西西安710064 [3]西北民族大学,兰州甘肃730030

出　　处：《中国水运》2024年第8期152-154,共3页

基　　金：国家重点研发计划课题(2021YFB2600402)。

摘　　要：以内陆河湖相软土地基为研究对象,结合内陆河湖相软土工程特性和原位测试方法特点,采用现场调研、资料收集、统计分析等方法,对内陆河湖相软土地基原位测试方法适用性进行了较详尽的研究。研究结果表明:相较于室内土工试验,原位测试所测得的内陆河湖相软土工程特性的变异性更小、代表性更好。基于此,筛选出关键原位测试方法的适用范围,并明确了常用的静力触探试验和十字板剪切试验的技术要求、勘察数据应用场景,以及用于内陆河湖相软土地基勘察时需满足的测试要求。This study focuses on the inland river and lacustrine soft soil foundation,integrating the engineering characteristics of inland river and lacustrine soft soils with the features of in-situ testing methods.Through field investigations,data collection,and statistical analysis,a detailed examination of the applicability of in-situ testing methods for inland river and lacustrine soft soil foundations was conducted.The research findings indicate that,compared to laboratory geotechnical tests,in-situ tests yield engineering properties of inland river and lacustrine soft soils with lower variability and better representativeness.Based on these findings,the applicability range of key in-situ testing methods was identified.Additionally,the technical requirements for commonly used static cone penetration tests and vane shear tests,the application scenarios of survey data,and the testing requirements for investigations of inland river and lacustrine soft soil foundations were clarified.

关 键 词：内陆河湖相软土地基 原位测试 统计分析 变异性 适用性分析 

分 类 号：TU447[建筑科学—岩土工程]