The Application of Guniting and Grouting Technology for Fire Prevention and Extinguishing in Damage Zone of Small Kiln

According to the roadway characteristics of damaged areas in small kiln,using closed support method of "guniting+ wooden shed+ wire netting",the paper developed the damage zone management program which contained sub-regional governance for governance lane and blasting Lane,special treatment for eliminate fire way;implemented measures of pre-irrigation intubation,high hole main irrigation,intermittent point irrigation,plugging re-spray,probe hole dehydration and analysis evaluation;achieved ignition prevention of residual coal in small kiln when mining activities repeated in the destruction area;ensured the safety of tunneling and achieved good social and economic benefits.