Deformation of a Uniform Half-Space with Rigid Boundary Caused By a Long Inclined Strike Slip Fault of Finite Width

Abstract

Deformation of a uniform half-space with rigid boundary caused by a long inclined strike-slip fault of finite width is studied analytically and numerically. Closed-form expressions for the displacement and stresses at any point in a homogeneous, isotropic, perfectly elastic half-space with rigid boundary caused by a long inclined strike-slip fault of finite width are derived. The variation of the displacement and stresses at the interface with the distance from the fault and depth from the fault is studied numerically. It is found that the displacement and stress field is heavily dependent on the dip-angle.

Static elastic deformation in an orthotropic half-space with rigid boundary model due to non-uniform long strike slip fault

“…In the present problem, we have derived the closed form expressions for displacements and stresses at any point of a homogeneous, orthotropic, perfectly elastic half-space in contact with a rigid half-space due to non-uniform slip-profiles -linear and parabolic along a very long strike-slip fault. This paper is a continuation of the paper by Sahrawat et al (2014), in the sense that we have taken the slip as non-uniform instead of uniform slip, and is generalised in the sense that medium of the present paper is orthotropic having rigid boundary which is better approximation than isotropic case. The variations of the displacement with distance from the fault due to various slip profiles have been studied to examine the effect of anisotropy on the deformation.…”

“…Malik et al (2013) obtained analytical expressions for stresses and displacements at an arbitrary point of homogeneous, isotropic perfectly elastic half-space with rigid boundary caused by a long strike-slip line source. Sahrawat et al (2014) derived the displacements and stresses in a uniform half-space with rigid boundary due to a strike slip fault of finite width. So, it is very interesting to consider the model consisting of an orthotropic half-space with rigid boundary.…”