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《Chinese Journal of Underground Space and Engineering》 2014-S1
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Evaluation of Maximum Shear Modulus of Soft Clay from Seismic Piezocone Tests(SCPTU)

Yang Yijun;Tong Liyuan;Zhu Ning;Liu Songyu;Institute of Geotechnical Engineering,Southeast University;Suzhou Railway Company;  
The compression modulus is an important parameter for soil deformation calculation.The previous methods to obtain the compression modulus were generally based on the laboratory oedometer test,which was time consuming with low accuracy due to disturbance from sampling,transportation and storage.This paper summarizes the methods to determine the compression modulus based on the piezocone tests.Also,it counts the shear wave velocity and the compression modulus in different clays from foreign references and Yangtze River floodplain area data.A method to determine the compression modulus from the shear wave velocity is proposed,the effectiveness of different empirical methods was compared according to the piezocone tests at three typical sites in China with the SCPTU system.It was shown that the method based on shear wave velocity less than 200 m/s was sufficiently accurate for determining the compression modulus less than 10 MPa.Therefore,it is notably suitable for use in engineering practice.
【Fund】: 苏州轨道交通有限公司科学基金资助项目(SZGDKY201303);; 国家十二五科技支撑计划项目(2012BAJ01B02)
【CateGory Index】: U416.1
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【Co-citations】
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1 CAO Quan1,2,CHAI Shou-xi3,4,SHI Jian-yong1,2,QI Le1,2,WANG Pei3,4(1.Key Laboratory of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing210098,China;2.Geotechnical Research Institute,Hohai University,Nanjing 210098,China;3.Department of Civil Engineering,Tianjin Institute of Urban Construction,Tianjin 300384,China;4.Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment,Tianjin 300384,China);Study on Changes in Pore-water Pressure of Clays Based on Self-boring Pressuremeter Test[J];Journal of Yangtze River Scientific Research Institute;2009-07
2 ZHOU De-quan1,2,ZHAO Ming-hua1,XIAO Hong-yu2(1.College of Civil Engineering,Hunan University,Changsha 410082,China;2.School of Civil Engineering and Architecture,Changsha University of Science and Technology,Changsha 410004,China);Experimental study on behavior of deposition fly ash stratum[J];Journal of Railway Science and Engineering;2011-03
3 Du Guangyin1,2 Cai Guojun1 Wang Chuntao3 Liu Songyu1 Tong Liyuan1 Shao Guanghui1(1Institute of Geotechnical Engineering,Southeast University,Nanjing 210096,China)(2College of Environment and Civil Engineering,Chengdu University of Technology,Chengdu 610059,China)(3Jiangsu Communication Design Institute Co.,Ltd.,Nanjing 210006,China);Analysis of some factors affecting RCPT data based on depositional chemistry characteristics of marine clay[J];Journal of Southeast University(Natural Science Edition);2008-01
4 Ju Jun1 Liu Songyu1 Liu Zhibin1 Cai Guojun1 Zhou Boming2(1Institute of Geotechnical Engineering,Southeast University,Nanjing 210096,China)(2 Chongqi Bridge Onsite Headquarters of Jiangsu Province,Qidong 226255,China);OCR evaluation method of underconsolidated soil through CPTU pore pressure dissipation test[J];Journal of Southeast University(Natural Science Edition);2011-03
5 Cheng Yuan Liu Songyu Cai Guojun Liu Zhibin Du Guangyin(Institute of Geotechnical Engineering,Southeast University,Nanjing 210096,China);Assessment of resonance compaction method on soil liquefaction treatment through CPTU test[J];Journal of Southeast University(Natural Science Edition);2011-05
6 CAI Guojun LIU Songyu TONG Liyuan DU Guangyin(Institute of Geotechnical Engineering,Transportation College,Southeast University,Nanjing 210096);GENERAL FACTORS AFFECTING INTERPRETATION AND CORRECTIONS OF PRIMARY DATA FROM PIEZOCONE PENETRATION TEST(CPTU)[J];Journal of Engineering Geology;2006-05
7 CAI GuojunLIU SongyuTONG LiyuanDU Guangyin(Institute of Geotechnical Engineering,Transportation college,Southeast University,Nanjing 210096);DETERMINATION OF PRE-CONSOLIDATION PRESSURE OF MARINE CLAY IN LIANYUNG PORT FROM PIEZOCONE PENETRATION TEST[J];Journal of Engineering Geology;2007-01
8 Wang Zhongqi;The Practice of CPT Technology and Its Application[J];Geotechnical Investigation & Surveying;2008-10
9 Gu Baohe;Problems in Application of CPT with "Code for Investigation of Geotechnical Engineering"[J];Geotechnical Investigation & Surveying;2008-10
10 Chen Xinjun,Yang Huaiyu,Zhao Fenglin(Third Railway Survey and Design Institute Group Corporation,Tianjin 300251,China);Study on stratigraphic division and soil classification by using rotary penetration sounding tests[J];Geotechnical Investigation & Surveying;2012-04
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