Theory for the rapid solution of ground subsidence near reservoirs on layered and porous media
✍ Scribed by R.J. Withers; E. Nyland
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 571 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0013-7952
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✦ Synopsis
Withers, R.J. and Nyland, E., 1976
. Theory for the rapid solution of ground subsidence near reservoirs on layered and porous media. In: W.G. Milne (Editor), Induced Seismicity. Eng. Geol., 10(2--4): 169--185.
The use of two-dimensional fourier transforms of reservoir topography allows substantial increases in the speed of computation of loading effects on layered elastic models of the earth and on porous fluid-filled models of the earth. It is possible to solve the compaction equations for arbitrary reservoirs filled at an arbitrary rate in time. The delay involved in the associated diffusion of pressure can be computed and the theory allows for the computation of the effective stress needed to assess seismic risk associated with the filling of large artificial lakes. A numeric example is given for the vertical deflection and the pore pressure as functions of time and depth below a two-dimensional cross-section of a typical lake profile.