Therefore, an initial horizontal stress of 60 MPa is applied to simulate the concentrated structure stress in the anticlinal axis. The Mohr-Coulomb model is used to calculate the numerical model.
(2) When the distance is 4 m between the working face and anticlinal axis in Figure 8(c), the maximum value of the abutment pressure is 60 MPa.
A vertical monitoring line is set up in the anticlinal axis of the numerical model.