TY  - EJOU
AU  - Choudhury, Deepankar 

TI  - Integrity of Sub-Structural Systems during Earthquake: Indian and International Perspectives
T2  - Structural Longevity

PY  - 2010
VL  - 3
IS  - 2
SN  - 1944-6128

AB  - Structural integrity of underground constructions or sub-structures like
foundations, anchors, basements, piles, piers, abutments, retaining walls, subgrade
of railway, highway, airport runway etc. are important concern for the engineers
and researchers in the entire world to advance on the infrastructural developments
of any country. Several historical giant earthquakes all over the world had always
put the researchers and engineers to the new challenge for developing advanced
and new techniques of design and construction to maintain the structural integrity
of the infrastructural systems. In this paper, the state-of-the-art type analysis and
design techniques for behavior of such sub-structural system during seismic events
are discussed. In this connection, the role of the design codes in India with a comparison to such activities around the world using international design codes is discussed. The importance of soil profile with seismic characterization is highlighted.
Benefits of the recently proposed and validated pseudo-dynamic approach over the
conventional pseudo-static approach have been revealed. The mitigation technique
such as the use of geosynthetic materials for the stability and integrity of such substructures during seismic events is also discussed. The latest trends in research
and practice for design of sub-structural systems in India and other countries are
revealed.
KW  - Earthquake geotechnical engineering
KW  -  design codes
KW  -  pseudo-dynamic method
KW  -  geosynthetics
KW  -  earthquake resistant geotechnical structures

DO  - 10.3970/sl.2010.003.155