Research Article

Study on the Stability of the Coal Seam Floor above a Confined Aquifer Using the Structural System Reliability Method

Table 3

Statistics of random variables in Yangliu mine.

Parametersσkt/MPack/MPaφk/(°)c/MPaφ/(°)Ek GPak0hc (m)

13.9016.0038.0011.9034.0018.001.2012.00
0.801.503.502.203.701.100.082.10
0.060.090.090.190.110.060.070.18