Displacement and Stress Fields Due to Finite Faults and Opening-Mode Fractures in an Anisotropic Elastic Half-Space

Details

• Personal Author:
  Griffith WA ; Molavi Tabrizi A ; Pan E ; Sangghaleh A
• Description:
  The elastic displacement and stress fields due to rectangular faults and opening-mode fractures within an anisotropic homogeneous half-space are derived in this paper. The solution is expressed in terms of the mathematically elegant and computationally powerful Stroh formalism and can be applied to the generally anisotropic half-space or a transversely isotropic half-space with any oriented isotropic plane. For any flat fault or opening-mode fracture of polygonal shape, one needs only to carry out a simple line integral from 0 to pi in order to express the fault-induced response. Numerical examples are presented to demonstrate the effect of the anisotropy and fault orientation on the internal and surface responses of the half-space. Our results prove that both rock anisotropy and fault orientation could dramatically change the fields in the domain and one needs to consider these properties as accurately as possible to be able to predict the response in the domain precisely. Anisotropy of the rock mass may alter the dominant displacement and stress components at observation points in the model domain as compared to the isotropic case. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Keywords:
  Author Keywords: Geomechanics Dynamics And Mechanics Of Faulting Elastic Properties Fractures And Faults Geologic Formations Geologic Models Mathematical Models Mechanics Modelling Models Rock Mechanics Seismic Anisotropy Theory

  More +
• ISSN:
  0956-540X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5 ; OSHA Region 6 ; Texas
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  203
• Issue:
  2
• NIOSHTIC Number:
  nn:20053116
• Citation:
  Geophys J Int 2015 Nov; 203(2):1193-1206
• Contact Point Address:
  E. Pan, Department of Civil Engineering, University of Akron, Akron, OH 44325, USA
• Email:
  pan2@uakron.edu
• Federal Fiscal Year:
  2016
• Performing Organization:
  University of Texas at Arlington
• Peer Reviewed:
  True
• Start Date:
  20121122
• Source Full Name:
  Geophysical Journal International
• End Date:
  20150831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:cf3f986db7548af83e336372519b26d969e6f0aa25ae823df86e8fd1aea27b40f22c4d0d32328d7e79f4afa0f1bb399bb7e5ce2f3efaafeb2c900be93d86ba98
• Download URL:
  https://stacks.cdc.gov/view/cdc/215942/cdc_215942_DS1.pdf
• File Type:
  [PDF - 627.12 KB ]