Analysis of Force and Deformation in the Goaf of the Reconstructed Highway with Underlying Buildings and Pillars
The large-scale coal mining results in a large number of mined-out areas under the highway,and the potential hazards of mined-out areas seriously threaten the safety of highway operation.In order to deal with this problem,this paper puts forward the stress and deformation analysis of the room-pillar goaf under the reconstructed highway.Based on the reconstruction highway project of Zibo City,the 3D deformation data of the mined-out area with room and pillar under the highway are collected,and the 3D deforma-tion data of the mined-out area are decomposed to calculate the forces acting on the mined-out area,as the analysis of the goat force and deformation of the data basis.The results show that the stress of goaf decreases with the decrease of dip angle and coal seam thick-ness,and the deformation of goaf decreases with the decrease of stress.
万方数据
维普
