COMPUTATIONAL MODELLING IN GEOTECHNICAL EQ ENGG.

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Presentation transcript:

COMPUTATIONAL MODELLING IN GEOTECHNICAL EQ ENGG. * 07/16/96 COMPUTATIONAL MODELLING IN GEOTECHNICAL EQ ENGG. D.K. Paul, FNAE Emeritus Fellow Department of Earthquake Engineering Indian Institute of Technology, Roorkeee 5/5/2019 1 * ##

ATOMIC POWER PLANTS ON ALLUVIAL SITE Dynamic soil – structure interaction Finite Element Model - Analysis 5/5/2019 Forum for Promotion of Soil Dynamics in India

Forum for Promotion of Soil Dynamics in India SOIL- PORE FLUID INTERACTION - A UNIFIED APPROACH Linear static / nonlinear drained/ nonlinear un-drained solution Seepage analysis Response of saturated soil under dynamic loads Structure-soil-pore fluid interaction Liquefaction Sedimentation and consolidation 5/5/2019 Forum for Promotion of Soil Dynamics in India

Forum for Promotion of Soil Dynamics in India Coupled Analysis 5/5/2019 Forum for Promotion of Soil Dynamics in India

Forum for Promotion of Soil Dynamics in India MODELLING ISSUES Constitutive model of soil - nonlinear Dynamic soil-structure interaction Input motion Infinite soil domain Structure-soil interfaces 5/5/2019 Forum for Promotion of Soil Dynamics in India

Forum for Promotion of Soil Dynamics in India CONSTITUTIVE MODELLING Loose sand Dr 27% Dense sand Dr 47% 5/5/2019 Forum for Promotion of Soil Dynamics in India

SPECIFYING THE INPUT MOTION 5/5/2019 Forum for Promotion of Soil Dynamics in India

TREATMENT OF FINITE BOUNDARIES 5/5/2019 Forum for Promotion of Soil Dynamics in India

Forum for Promotion of Soil Dynamics in India * 07/16/96 TREATMENT OF INTERFACE (Slip and separation model) 5/5/2019 Forum for Promotion of Soil Dynamics in India *

Forum for Promotion of Soil Dynamics in India DSSI - WITH SLIP AND SEPARATION Deflected shape at the time of maximum vertical separation at heel Deflected shape at the time of maximum horizontal separation at sides 5/5/2019 Forum for Promotion of Soil Dynamics in India

3D Seismic (FEM) Analysis of Tehri Rock-fill Dam 3D Finite Element Model of Tehri Rock-fill Dam 5/5/2019 Forum for Promotion of Soil Dynamics in India

DAM & FOUNDATION DISCONTINUITIES ( Koteshwar Dam ) * 07/16/96 DAM & FOUNDATION DISCONTINUITIES ( Koteshwar Dam ) Lithological Discontinuities Included -3DEC Dam 5/5/2019 Forum for Promotion of Soil Dynamics in India *

Forum for Promotion of Soil Dynamics in India COURCES ON GEOTECHNICAL EARTHQUAKE ENGG. COMPUTATIONAL MODELLING FOR GEODYNAMIC PROBLEMS - Feb. 18 to March 1, 1997: Dr. D.K. Paul and Shyamal Mukerjee GEO-TECHNICAL EARTHQUAKE ENGINEERING - 29 August to Sept. 3, 2005: Dr. B.K. Maheshwari & Dr.D.K. Paul GEOTECHNICAL-EARTHQUAKE ENGINEERING - May 29-June 3, 2006: Dr. B.K. Maheshwari & Dr. D.K. Paul 5/5/2019 Forum for Promotion of Soil Dynamics in India

PROMOTION OF SOIL DYNAMICS IN INDIA TEACHING, PLACEMENTS – JOB DEMAND RESEARCH AND CONSULTANCY DYNAMIC SOIL INVESTIGATIONS CONFERENCES/ SYMPOSIA SHORT TERM COURSES/ SPECIAL LECTURES AWARENESS 5/5/2019 Forum for Promotion of Soil Dynamics in India