Technology of Advance Circulation Support in Haulage Roadway of Soft Rock Mining Areas

Haulage roadway geological conditions of soft rock mining area belonged to soft rock roadway characteristic. At present, the advance support method was mainly single pillar support, the amount of pillar was much, the workload of support and maintenance was heavy, the failure rate was high, and the chain reaction would happen easily, then it would influence the support safety. For this case above, the hydraulic prop was replaced by the hydraulic support in the advance support of haulage roadway, the innovative circulation support method was used, and the moving scheme of fast and safe advance hydraulic support was studied.