A Numerical Approach for Solution of Aseismic Ground Deformation Problems

Subhash Chandra Mondal^1, , Sanjay Sen² and Suma Debsarma²

¹Department of Mathematics, Umeschandra College, FC-129, Sector-III, Salt Lake, Kolkata-7000106, India

²Department of Applied Mathematics, University of Calcutta, 92 A.P.C. Road, Kolkata-700009, India

Cite this paper

Subhash Chandra Mondal, Sanjay Sen and Suma Debsarma. A Numerical Approach for Solution of Aseismic Ground Deformation Problems. Journal of Geosciences and Geomatics. 2018; 6(1):27-34. doi: 10.12691/JGG-6-1-4

Abstract

Numerical techniques based on the finite difference scheme with discontinuity have been developed for problems associated with aseismic ground deformation in seismically active regions. We stress upon the applicability of such numerical techniques in solving problems in geodynamics. A long strike-slip fault is considered in a viscoelastic half space representing the lithosphere-asthenosphere system. The fault undergoes a sudden movement under the action of tectonic forces induced by mantle convection. The resulting boundary value problems have been solved with the help of numerical technique, based on a finite difference scheme with appropriate boundary conditions, developed for the purpose. The numerical techniques developed here can be modified for more general deformation problems where analytical methods become very complicated.

Keywords

elliptic boundary value problem, finite difference scheme with discontinuity, aseismic ground deformation, strike slip fault, linearly viscoelastic medium

Copyright

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