A case study on the soil classification of the Yellow River Delta based on piezocone penetration test

作     者：Jiarui Zhang Qingsheng Meng Lei Guo Yan Zhang Guanli Wei Tao Liu Jiarui Zhang;Qingsheng Meng;Lei Guo;Yan Zhang;Guanli Wei;Tao Liu

作者机构：College of Environmental Science and EngineeringOcean University of ChinaQingdao 266100China Shandong Provincial Key Laboratory of Marine Environment and Geological EngineeringOcean University of ChinaQingdao 266100China Laboratory for Marine GeologyPilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Institute of Marine Science and TechnologyShandong UniversityQingdao 266237China College of Marine GeosciencesOcean University of ChinaQingdao 266100China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2022年第41卷第4期

页      面：119-128页

核心收录：

学科分类：08[工学] 081401[工学-岩土工程] 0707[理学-海洋科学] 0814[工学-土木工程] 

基　　金：The National Natural Science Foundation of China under contract Nos U2006213 and 41672272 the Fundamental Research Funds for the Central Universities under contract No.201962011。 

主　　题：soil behavior classification Chengdao area seabed piezocone penetration test 

摘      要：Piezocone penetration test(CPTu),the preferred in-situ tool for submarine investigation,is significant for soil classification and soil depth profile prediction,which can be used to predict soil types and states.However,the accuracy of these methods needs to be validated for local conditions.To distinguish and evaluate the properties of the shallow surface sediments in Chengdao area of the Yellow River Delta,seabed CPTu tests were carried out at ten stations in this area.Nine soil classification methods based on CPTu data are applied for soil classification.The results of classification are compared with the in-situ sampling to determine whether the method can provide sufficient resolution.The methods presented by Robertson(based on soil behavior type index Ic),Olsen and Mitchell are the more consistent and compatible ones compared with other methods.Considering that silt soils have potential to liquefy under storm tide or other adverse conditions,this paper is able to screen soil classification methods suitable for the Chengdao area and help identify the areas where liquefaction or submarine landslide may occur through CPTu investigation.