In order to research the effects of the roadway deformation controlled by coupling support,under the different support parameters,researched the displacement on the roof,the floor,the left,and the right,and the max displacement of the surrounding rock in a coal 11010 working face tailentry by FLAC3D numerical simulation software on the basis of the theory of coupling support.The result showed that the displacement of roadway deep point and the max displacement of the surrounding rock were both small,and the...