A New Closed-Form Solution of the Side Abutment Pressure Distribution of Roadway

Figure 3

The side abutment pressure distribution. (a) The interfacial friction angle. (b) The interfacial cohesion. (c) The friction angle of the coal. (d) The cohesion of the coal. (e) The roadway height. (f) The support strength.

(a)

(b)

(c)

(d)

(e)

(f)