Effect of Corrugation and Reinforcement on the Dispersion of SH-wave Propagation in Corrugated Poroelastic Layer Lying over a Fibre-reinforced Half-space

• Autorzy: Singh, A. K. , Das, A. , Lakshman, A. , Chattopadhyay, A.
• Języki publikacji: EN

Abstrakty

EN

The presence of porosity and reinforcement in a medium is an important factor affecting seismic wave propagation and plays vital role in many geophysical prospects. Also, the presence of salt and ore deposits, mountains, basins, mountain roots, etc. is responsible for the existence of corrugated boundary surfaces of constituent layers. Such facts brought motivation for the present paper which deals with the propagation of SHwave in a heterogeneous fluid-saturated poroelastic layer with corrugated boundaries lying over an initially stressed fibre-reinforced elastic halfspace. Closed form of dispersion relation has been obtained and is found in well agreement to classical Love wave equation for isotropic case. The effect of corrugation, wave number, undulation, position parameter, horizontal compressive/tensile initial stress and heterogeneity on phase velocity has been analysed through numerical computation and graphical illustration. Moreover, comparative study exploring the effect of presence and absence of reinforcement in half-space on dispersion curve is the major highlight of the current study.

Słowa kluczowe

PL

naprężenia pierwotne; wzmocnienie

EN

initial stress; reinforcement; SH-wave; corrugated boundary; heterogeneous poroelastic

• Czasopismo: Acta Geophysica
• Rocznik: 2016
• Tom: Vol. 64, no. 5
• Strony: 1340--1369
• Opis fizyczny: Bibliogr. 29 poz.

Twórcy

autor

Singh, A. K.

• Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India,

autor

Das, A.

• Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India,

autor

Lakshman, A.

• Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India,

autor

Chattopadhyay, A.

• Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India,

Bibliografia

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Identyfikatory

DOI

10.1515/acgeo-2016-0060