Supporting Technology of Soft Rock Mining Roadway in Unstable Coal Seam

In order to realize mining in first fully mechanized working face of No 11071 in Shihuatian Coal Mine as soon as possible, it took mining roadway supporting as reseach object in No 11071 of Shihuatian Coal Mine, and analyzed complicated geological conditions and failure conditions of soft rock mining roadway in the unstable coal seam, then summrized the failure mechanism of roadway. Furthermore, it used physical similar simulation experiment and numerical simulation calculation to put forward the reasonable supportting scheme and determined the supporting parameters.