Retrofitting of Lifeline Buildings
Seismic Microzonation
Seismic Microzonation of Delhi

Department of Science and Technology has undertaken the project of Microzonation study for Delhi.
The first level Microzonation study related to Geo-Scientific classification has been prepared

Phase I - First order seismic zonation map

Activity

Institution

  1. Geological Map
    - Lithological Unit
    - Geomorphological Unit
    - Structural Mode

IITD, DU, GSI

  1. Seismotectonics
    - Sources
    - Focal Mechanism
    - Earthquake Catalogue
    - Lineaments / Faults
    - Attenuation Law

IMD, IITD, CBRI, GSI, NGRI

  1. Bed Rock Contour Map

IITD, GSI, NGRI

  1. Geotechnical Map
    - Soil Profile
    - Velocity Profile (Vp, Vs, Vr, Vl)
    - Density, Plasticity
    - GSD, c, f, E, n
    - Lithological Unit

IITD

  1. Hydrogeological Map
    - Water Table Contours
    - Fluctuations
    - Potential

CGWB, IITD            

  1. Ground Motion Studies
    - PGA
    - Amplificatiom and Filtering
    - Response Spectrum

IMD, IITD, DU, IITR, CBRI

  1. Liquefaction Studies
    - Laboratory Testing
    - Field Testing

IITD, CSMRS

Phase II - Authentication and Generation of Data

Activity

Institution

  1. Geological Field Study
    - Active Faults, Joints
    - Weathering Profiles
    - Attitudes, Orientations
    - Lithological Units

IITD, GSI, WIHG, DU

  1. Modelling
    - Seismic Recording
    - DSS
    - Gravity
    - Electro-Magnetic

            - Resistivity
- GPS


IMD, IITD, CBRI
NGRI
WIHG, NGRI
IIG, NGRI
IITD, NGRI
C-MAMC, IIG, WIHG

  1. Soil Characteristics
    - Bore Hole, Undistributed             Samples
    - SPT, CPT, DCPT

            - Dynamic Triaxial Tests
- GSD, Relative Density

            - Dynamic Properties

IITD, DDA, CPWD, CRRI

  1. Ground Motion Studies
    - PGA
    - Amplification
    - Response Spectrum
    - Lithological Units

IITD, IITR, IMD

  1. Software Development, Modeling Data Analysis

IITD, IITR, C-DAC

Phase III - Seismic Hazard and Risk Assessment

Activity

Institution

  1. Synthetic Seismograms, Site Effects, PGS Distribution Map of Delhi, Liquefaction Potential

IITD, NGRI, IITR, IMD

            Building Typology

IITD, DCE, SPA, DDA, CPWD

            Vulnerability Assessment

IITD, IITR, SPA

            Life Line Structures

IITD, DPWD, DCE, JAMIA, DIT

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Last Updated : 23 Mar,2014