Test of Mining Strip Pillar with Waste Rock Filling under Buildings

Aiming at 3 main problems of coal under village, filling mining of strip pillar and disposal of underground waste rock,the paper put forward a program of mining strip pillar with waste rock filling on the basis of physical and mechanical test of waste rock and numerical simulation.Results showed that if surface deformation was limited withinⅠprotecting range,it was a scientific route for saving resource,protecting environment and improving economical profit that mining strip pillars with waste rock filling by driving filling roadway.