【摘要】 针对开拓巷道设计中最常用的三种断面形状 ,即直墙拱、直墙仰拱、曲墙仰拱 ,运用FLAC3 D程序模拟了三种断面形状在不同围岩条件下的力学效应。研究表明 :在同一种围岩条件下 ,三种断面形状中受力状况最好的是曲墙仰拱 ,最差的是直墙拱 ;同一形状断面在不同围岩条件下 ,其力学效应差异较大更多还原

【Abstract】 Tree roadway across shapes which are commonly used in the design of roadway development are straight wall top arch(SWTA), straight wall top bottom arch(SWTBA),and bent wall top bottom arch(BWTBA). Their mechanical effects are simulated with FLAC 3D . The research shows that BWTBA is the best on bearing force, and SWTA is the worst within the same wall rock, and the mechanical effects of the same roadway shape are different in various wall rocks.更多还原