In order to optimize supporting form of large section stoping and solve problems of high support cost, low efficient support and single support method, support optimization of 8305 working face was taken as engineering background, optimizing support parameters were determined by reinforced arch theory of roadway, FLAC3D numerical simulation technique was used to verify actual condition of selected parameters, which determined support optimization scheme of roadway. The results showed that this scheme not only ensured stability of large section roadway and strengthened the strength of surrounding rock in the stope, but decreased cost, improved safety factor of workers and brought high economic benefits
