ABOUT THE COURSE:The course will focus on the design of geotechnical structures under earthquake condition. The determination of the soil properties by field and laboratory tests for seismic design of geotechnical structures will also be discussed. Soil liquefaction and soil improvement techniques for remediation of seismic hazards like liquefaction will be discussed. In the undergraduate core courses, these topics are either not covered or discussed in simplified form. In the proposed course, these topics will be discussed in detail. This course is useful for both UG and PG student. Field Engineers can be benefited from this course as the design of geotechnical structures under seismic condition (those are not generally covered in UG core foundation engineering course) will be discussed here.INTENDED AUDIENCE: UG and PG students. Research Scholars and Practicing Engineers can also take this course.PREREQUISITES: BE Students can take after completing third year or after completing "Soil Mechanics" and "Foundation Engineering" courses. ME and PhD students can take during first year of their course work.INDUSTRY SUPPORT: Most of the Civil Engineering companies
Overview
Syllabus
Week 1: Introduction; causes of earthquake; Continental Drift and Plate Tectonics; plate boundaries; faults; seismic waves; locating an earthquake epicenter; size of earthquake: magnitude, intensity and energy of earthquake.Week 2:Strong motion measurement; ground motion parameters; estimation of ground motion parameters.Week 3:Measurement of dynamic soil properties (Part I): field testsWeek 4: Measurement of dynamic soil properties (Part II): field tests (continued), laboratory tests. Model tests.Week 5:Stress-strain behavior of cyclically loaded soils: equivalent linear model, nonlinear models.Week 6:1-D Ground response analysis: linear approach, equivalent linear approach, nonlinear approach.Week 7:Liquefaction; flow liquefaction; cyclic mobility; evaluation of initiation of liquefaction: cyclic stress approach, cyclic strain approach.Week 8:Liquefaction susceptibility criteria for silts and clays, evaluation of cyclic softening in silts and clays, earthquake- induced settlement of soils.Week 9:Soil improvement techniques for remediation of liquefaction hazards.Week 10:Seismic slope stability analysis: pseudo-static approach; seismic design of retaining wall, seismic displacement of retaining walls, effect of water on seismic wall pressures.Week 11:Seismic design of waterfront retaining wall. Pseudo-dynamic approachWeek 12:Static and seismic design of geosynthetic-reinforced retaining wall.
Taught by
Prof. Kousik Deb
