Analyses on dynamic supporting process of cage supporting device;

Connection point determining method by cage and its accuracy analysis;

Effects of cage on electromagnetic wave cutoff frequency in mine tunnel;

In the case of the special situation in using process of the cage position restriction service of Chacheng Coal Mine of Xuzhou Mining Bureau Corporation and through construction design and change the surface material,the author reconstructed the former structure.

Train of thoughts in des igning of skip-cage for colliery;