A One-Day Short Course by Youssef Hashash, PhD, P.E. - Professor at University of Illinois (Urbana Champaign)


A unified 1D equivalent linear method and nonlinear site response analysis platform

Friday, November 15, 2019

The VGS will be hosting a one-day short course on November 15, 2019 on the use of the computer program DEEPSOIL by its developer Professor Youssef Hashash.

Course Overview

The first step in evaluating the impact of an earthquake on our physical infrastructure is evaluating the response of the ground to seismic shaking. In engineering practice this is often performed using one-dimensional site response analysis. Increasingly, it is necessary to go beyond equivalent linear approaches and perform total and sometime effective stress nonlinear analyses as part of this evaluation. This day long short course will introduce the use of the widely used 1-D site response analysis platform DEEPSOIL. The course will provide a step by step introduction to the modules available for analysis and describe the input required for performing such analyses. Hands-on examples will be given throughout the day to facilitate greater understanding by the participants of the introduced concepts.

Course Outline

  • 8:00 - 9:00 Registration / Coffee

  • 9:00 - 9:30 Introduction to DEEPSOIL and Historical Background

  • 9:30 - 10:00 Ground Motion Processing Tools

  • 10:00 - 10:15 Morning Break

  • 10:15 - 12:00 Linear and Equivalent Linear Analyses in DEEPSOIL with Hands-on Examples

  • 12:00 - 13:00 Lunch

  • 13:00 - 15:00 Time Domain Analyses in DEEPSOIL

  • 15:00 - 15:15 Afternoon Break

  • 15:15 - 16:30 Porewater Pressure Generation and Dissipation with Hands-on Examples

  • 16:30 - 17:00 Additional Features and Future Developments


Professor Youssef Hashash holds a B.S. (1987), an M.S. (1988) and a Ph.D. (1992) in civil engineering from the Massachusetts Institute of Technology (MIT). He began his career with the PB/MK TEAM in Dallas on the Superconducting Super Collider Project. In 1994 he joined Parsons Brinckerhoff in San Francisco and worked on a number of underground construction projects in the U.S. and Canada including the Boston Central Artery/Tunnel project.

Professor Hashash joined the faculty of the Department of Civil and Environmental Engineering at the University of Illinois at Urbana-Champaign in 1998. He taught courses in Geotechnical Engineering, Numerical Modeling in Geomechanics, Geotechnical Earthquake Engineering, Tunneling in Soil and Rock, and Excavation and Support Systems. His research focus includes deep excavations in urban areas, earthquake engineering, continuum and discrete element modeling and soil-structure interaction. He also works on geotechnical engineering applications of visualization, augmented reality, imaging and drone technologies in. He has published over 250 articles and is co-inventor on four patents. His research group developed the software program DEEPSOIL that is used worldwide for evaluation of soil response to earthquake shaking.

Professor Hashash is a Fellow of the American Society of Civil Engineers (ASCE) and has received a number of teaching, university and professional awards including the Presidential Early Career Award for Scientists and Engineers and the ASCE 2014 Peck medal. He is a past president (2017-2018) of the Geo-Institute of ASCE.