The veinlet belt orebady of Tongkeng Mine with spontaneous ignition formats a fire area,that makes mining sequence disorder,and a great number of stoped areas untreated.

• 铜坑矿细脉带矿石自燃形成火区,使矿山开采顺序紊乱,并遗留大量未处理的采空区,对矿山安全生产造成重大事故隐患。