Anchor safety potential reinforcing theory and its applications in roadway affected by mining
The roof collapse accident happens frequently in the mining affected roadway reinforced by anchors, which makes the roadway unsafe. Based on the damage analysis of roof strata, composite material mechanic rationale is adopted to deduce the calculating formulas of anchor reinforcing potential coefficient which is represented by the ratio of the limit roof collapse span between after anchor reinforcement and before anchor reinforcement. By using anchor reinforcing potential coefficient, this paper puts forward a new anchor support calculating method for the roadway affected by mining. It has been tested in Yanzhou mining area and Xinwen mining area. The results show that the new method is safe and reliable, and valuable for generalization
anchor reinforcement potential roadway mining
Tan Yun-liang Sun Chun-jiang Gu Shi-tan Chen Yun-juan
Key Lab. Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingda Key Lab. Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingda
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-6
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）