Damage Depth Test and Numerical Simulation of Stope Floor in Mining Face

Table 5

List of basic unit numbers of each rock layer of the model.

direction	Actual	Number of units	Density (g/m^3)
Top plate	120	35	2.62
Coal seam	2.6	2	2.55
Sandstone	5.1	3	2.58
Sandy mudstone	4.1	2	2.57
Coal seam, bauxite mudstone	9.8	3	2.55
Sandstone	5	2	2.58
Shale, bauxite mudstone	5.9	2	2.55
Limestone	9.5	4	2.64