Construction Technology of Flexible Ventilation Facilities of New Elastic Material

Because of long mining life,mining depth extension,large range of stope and longer mine ventilation route,most tunnels in Peigou coal mine of Zhengzhou coal industry group deform fast,and the gap in wall and tunnel junction is not easy to block,which reduces the effective air flow rate of coal mine and the reliability of effective ventilation system.To ensure the stability of mine ventilation system,the method of constructing ventilation facilities by using new elastic yield materials to combine with traditional compression materials is put forward,and the cutting technology by expanding section to replace air door is proposed too,which pre-reinforces and constructs the roadway of air door section and increases anti-deformation capacity.Finally the facilities walls of overall framework compression and materials yield are formed,which greatly improves the service life facilities.