2Bottle Stopper Method Applied to Treat Heavy Roof Failure Accident in Large Cross Section Tunnel7-10
4Grouting Reinforcement Technology with Polyurethane Applied to Treat Seriously Deformed Skip Loading Chamber14-16
8Research and Practice on Mine Soft Rock Roadway Backfilled and Reinforced with Grout of Cement and Fly Ash27-30,40
10Differential Analysis on Freezing Results of Mine Main Shaft and Auxiliary Shaft in Chengcun Mine35-36,13