Abstract: In order to solve the problem of convergence deformation of U type steel support dynamic pressure area in the two lanes of working face, the influence of frequent maintenance on the dynamic pressure area is reduced. Through repeated research and test of underground scene, Zhangcun Mine applies the waste U type steel processing line with support shed, monomer to form “door” support to reinforce the working face in dynamic pressure area. Through field application, shed support not only improves the dynamic pressure area supporting strength, reduce the deformation of roadway convergence, reduce roadway maintenance frequency, reduce the material cost, but also has the characteristics of convenient construction, low labor intensity, which ensures the safe production of the work and achieves good results.