Mathematical Problems in Engineering / 2018 / Article / Tab 2

Research Article

Dynamic Responses of a Twin-Tunnel Subjected to Moving Loads in a Saturated Half-Space

Table 2

Parameters of the liner, the saturated ground, and the moving load.

Saturated Soil GroundWidth a (m)Height b (m)Length l (m)Biot parameters
42241200.99
Spacing (m)Burying depth h (m)Porosity Poisson’s ratio
9–246–180.2860.4
Young’s modulusDarcy permeability coefficientShear wave velocity Biot parameters
(Pa) (m/s)(m/s) (N/m)
2.23 × 1081.0 × 10−5–1.0 × 10−2191.15.74 × 109
Density of the bulk material (kg/m3)Density of the pore fluid (kg/m3)
2.178 × 1031.0 × 103

Concrete LinerYoung’s modulusPoisson’s ratioDensity of the bulk materialouter radiusThickness
(Pa) (kg/m3)r(m)t(m)
2.50 × 10100.22.400 × 1033.00.3

Moving LoadPoint load value (N)Load velocity (m/s)
2.0 × 10419.11–191.1