Pile group response to liquefaction-induced lateral spreading: E-Defense large shake table test |
| |
| Institution: | 1. Department of Civil & Environmental Engineering, University of Nevada, Reno, 1664 N. Virginia Street, Mail Stop 258, Reno, NV 89557, USA;2. Department of Civil Engineering, the University of Tokyo, Japan;3. Takenaka Corporation, Japan;4. National Research Institute for Earth Science and Disaster Prevention (NIED), Japan;5. Tokyo Soil Research Inc, Japan;1. National Research Institute for Earthquake Science and Disaster Prevention, 1501-21 Nishikameya, Mitsuta, Shijimicho, Miki, Hyogo 673-0515, Japan;2. Kobe Gakuin University, 1-1-3 Minatojima, Chuoku, Kobe, Hyogo 650-8586, Japan;3. Kanto Gakuin University, 1-50-1 Mutsuurahigashi, Kanazawaku, Yokohama, Kanagawa 236-850, Japan;4. Tokyo Denki University, Hatoyama, Hikigun, Saitama 350-0394, Japan;1. Key Lab of Structures Dynamic Behavior and Control, Harbin Institute of Technology, Ministry of Education, Harbin, Heilongjiang 150090, China;2. School of Civil Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China;1. Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Harbin, Heilongjiang 150090, China;2. School of Civil Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China;1. College of Civil and Transportation Engineering, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, 210098, China;2. School of Civil and Construction Engineering, Oregon State Univ., 101 Kearney Hall, Corvallis, OR, 97331, USA;3. College of Civil and Transportation Engineering, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, 210098, China;4. College of Civil Engineering, Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Chongqing, 400045, China;5. Itasca Consulting Group, Inc., 111 3rd Ave. S., Suite 405, Minneapolis, MN, 55401, USA;1. Ph.D candidate, College of Civil and Transportation Engineering, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;2. Professor, College of Civil and Transportation Engineering, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;3. Associate Professor, School of Civil and Construction Engineering, Oregon State Univ., 101 Kearney Hall, Corvallis, OR 97331 USA.;4. Professor, College of Civil Engineering, Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Chongqing 400045, China;2. School of Civil Engineering, University of Leeds, Leeds, LS2 9JT, UK |
| |
| Abstract: | This paper presents the results of a large-scale shake table test at E-Defense facility on a pile group located adjacent to a gravity-type quay wall and were subjected to liquefaction-induced large ground displacements. Extensive liquefaction-induced large ground lateral spreading displaced the quay wall about 2.2 m and damaged the pile foundation. The pile foundation consisted of a six-pile group which supported a footing and a superstructure model. Large lateral soil displacements were measured by several sensors such as inclinometers and the results favorably agreed with the directly observed deformations. Soil lateral displacement decreased as the distance from the quay wall increased landward. The piles were densely instrumented and the measured bending strain records were able to explain the damage to the piles. Lateral pressures of the liquefied soil exerted on the piles were measured using earth pressure (EP) sensors. The application of two design guidelines (JRA 1] and JSWA 2]) for estimation of liquefaction-induced lateral pressure on piles is discussed and their advantages and shortcomings are addressed. Furthermore, two simplified methods (Shamoto et al. 3] and Valsamis et al. 4]) are employed to predict the extent of liquefaction-induced large ground displacements and they are compared to the measured deformations. Finally, their accuracy for predicting the liquefaction-induced lateral displacements is evaluated and practical recommendations are made. |
| |
| Keywords: | Liquefaction-induced lateral spreading Pile group Quay wall E-Defense |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
