Field from a point source above a layered half‐space; theory and observations on reflection from the seabed

2006 ◽  
Vol 120 (5) ◽  
pp. 3298-3298
Author(s):  
Charles W. Holland
Keyword(s):  
Point Source ◽  
Half Space ◽  
Space Theory ◽  
Layered Half Space

scholarly journals Study of Input Parameters of Layered Half-Space used for Soil Modelling

2020 ◽  
Vol 15 ◽  
Keyword(s):  
Half Space ◽  
Space Theory ◽  
Ansys Software ◽  
Foundation Soil ◽  
Soil Modelling ◽  
Accurate Procedure ◽  
Model Size ◽  
Experimental Values ◽  
Subsoil Model ◽  
Layered Half Space

This article deals with a problem of soil modeling. That is a necessary part of foundation modeling.The soil modeling can directly influent the resulting deformation of the foundations and therefore deformationof the whole building. The accurate procedure that can simulate the foundation-soil interaction is still unknown.A greater understanding of the issue through experiments and numerical modeling is important for a goodapplication and proper use in practice. To improve this understanding an experimental test of a concrete slabwas performed on special testing equipment. The experiment is complemented by numerical modeling.Numerical models are created in the Ansys software. The article features three cube models and a half-spheremodel. Deformations on all featured models are discussed and compared to the experimental values andsimplified hand calculation. The subsoil model is based on the Boussinesq half-space theory. The soil section isassumed homogeneous and layered. The size of models is assumed as a changing parameter from 10 m to 30 m.A recommended model size was evaluated from the parametric study as a match of deformation from modelsand the experiment. This computed model size is compared with an affected depth described by the standardČSN 731001. Computation was performed using supercomputer Anselm in the National SupercomputingCenter IT4Innovations in the VSB-Technical University of Ostrava.

scholarly journals Seismic Waves in a horizontally layered half-space with a general point source

2000 ◽  
Vol 31 (1) ◽  
pp. 19-28
Author(s):  
Hiroshi Takenaka ◽  
Tsutomu Sasatani ◽  
the 210 MM MAGNETIC OBSERVATION GROUP
Keyword(s):  
Point Source ◽  
Half Space ◽  
Seismic Waves ◽  
General Point ◽  
Layered Half Space

scholarly journals Elastic Dislocations in a Layered Half-Space?II The Point Source

1974 ◽  
Vol 39 (2) ◽  
pp. 219-239 ◽  
Author(s):  
Dushan B. Jovanovich ◽  
Mouhajed I. Husseini ◽  
Michael A. Chinnery
Keyword(s):  
Point Source ◽  
Half Space ◽  
Layered Half Space

Deformation of a multilayered half-space by stress dislocations and concentrated forces

1971 ◽  
Vol 61 (6) ◽  
pp. 1625-1637 ◽  
Author(s):  
Sarva Jit Singh
Keyword(s):  
Free Surface ◽  
Dynamic Response ◽  
Point Source ◽  
Half Space ◽  
Elastic Half Space ◽  
Static Deformation ◽  
Source Level ◽  
Concentrated Forces ◽  
Layered Half Space

abstract The problem of the static and dynamic response of a nonhomogeneous, isotropic, elastic half-space to stress dislocations and concentrated forces is discussed. Integral expressions for the displacements are obtained in the case of a two-layered half-space. Results of Singh (1970) are used to study the static deformation of a multilayered half-space caused by a point source placed at an arbitrary depth below the free surface. The source is represented as a discontinuity in the z-dependent coefficients of the displacement and stress integrands at the source level.

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