电子测试
電子測試
전자측시
ELECTRONIC TEST
2015年
12期
89-91
,共3页
采区回风下山%断面优化%数值模拟%稳定性
採區迴風下山%斷麵優化%數值模擬%穩定性
채구회풍하산%단면우화%수치모의%은정성
air return down the mountain%section optimization%numerical simulation%stability
采区回风下山是为采区回风、行人用的重要准备巷道。断面形状很大程度上决定了此类巷道支护与维护效果，本文采用三维数值模拟对比分析了回风下山矩形、直墙拱形两种断面的巷道围岩稳定性，优选得到了直墙拱形断面更适合兴隆矿22采区回风下山。
採區迴風下山是為採區迴風、行人用的重要準備巷道。斷麵形狀很大程度上決定瞭此類巷道支護與維護效果，本文採用三維數值模擬對比分析瞭迴風下山矩形、直牆拱形兩種斷麵的巷道圍巖穩定性，優選得到瞭直牆拱形斷麵更適閤興隆礦22採區迴風下山。
채구회풍하산시위채구회풍、행인용적중요준비항도。단면형상흔대정도상결정료차류항도지호여유호효과，본문채용삼유수치모의대비분석료회풍하산구형、직장공형량충단면적항도위암은정성，우선득도료직장공형단면경괄합흥륭광22채구회풍하산。
The air return down the mountain is the important preparation for pedestrians,the air return roadway.Section shape largely determines such roadway support and maintenance effect.In this paper,the three dimensional numerical simulation,comparison and analysis of the air return down the rectangular, straight wall arch section of roadway surrounding rock stability. The optimized the straight wall arch section is more suitable for Xinglong mine 22 mining area air down the mountain.
