Analysis of Transient Dynamic Behaviour of Spherical Cavity in Viscoelastic Soil Medium

Table 1

Parameters used in computation.

Quantity	Notation	Value
Elastic modulus of soil (MPa)	𝐸𝑠	7
Poisson rate of soil	𝜇	0.35
Poisson rate of shell	𝜇𝑙	0.09
Dimensionless shell density	𝜌^∗𝑙	1.4
Dimensionless shell thickness	ℎ/𝑎	0.04
Dimensionless fluid density	𝜌^∗	0.45
Compressible parameter of material	𝛼	0.96
Dimensionless compressible parameter	𝑀^∗	18
Dimensionless permeability coefficient	𝑏^∗	9
Viscoelastic damp coefficient	𝜂	0.35
Porosity	𝑛	0.35
Gradually applied step load time	𝑇^∗	1