A new limit equilibrium method for the pseudostatic design of embedded cantilevered retaining walls |
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| Institution: | 1. SISSA, Trieste, Italy;2. Dipartimento di Ingegneria Civile, Università di Roma Tor Vergata, Via del Politecnico, 1, 00133 Roma, Italy;1. SAGE Engineers, Oakland, CA, USA;2. Civil and Environmental Engineering, University of California Berkeley, 449 Davis Hall, Berkeley, CA 94720, USA;1. PhD Student, Academy of Scientific and Innovative Research (AcSIR), New Delhi-110001, India;2. Scientist, Geotechnical Engineering Group, CSIR-Central Building Research Institute, Roorkee-247667, India;3. Professor, Department of Civil Engineering, Indian Institute of Technology, Powai, Mumbai - 400076, India;4. Adjunct Professor, Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India;5. Professor, Department of Civil Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India;6. Adjunct Professor, Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India and former Director, CSIR-CBRI Roorkee 247667, India;1. Key Laboratory of High-Speed Railway Engineering of Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China;2. School of Civil Engineering and Environmental Science, University of Oklahoma, 202 W. Boyd St., Room 334, Norman, OK 73019, USA;3. Key Laboratory of High-Speed Railway Engineering of Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China;1. Facultad de Ingeniería at Universidad del Desarrollo, Chile;2. National Research Center for Integrated Natural Disaster Management CONICYT/FONDAP/15110017, Chile;3. McMillan Jacobs Associates, San Francisco, CA, USA;4. Department of Civil and Environmental Engineering, University of California Berkeley, Berkeley, CA, USA |
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| Abstract: | This paper describes a new pseudostatic limit equilibrium method for the design of cantilevered retaining walls under seismic actions. The method has been applied in a parametric study of the effects of the geometry of the wall, considering different excavated and embedded depths, of the strength of the soil, and of the contact between the soil and the wall. The pseudostatic predictions are in very good agreement, both in terms of horizontal contact stress and bending moment distributions, with the results of truly dynamic 2-D finite difference analyses and published experimental data. It is found that for increasing strengths of the soil–wall system both the critical acceleration and the maximum bending moment on the wall increase. In other words, a stronger soil–wall system will experience smaller displacements during the earthquake, but this is paid for by increasing internal forces in the wall. |
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| Keywords: | Pseudostatic limit equilibrium Earthquake Embedded retaining walls |
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