山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2012年
28期
61-63
,共3页
岩柱%弯曲刚度%数值解%岩爆
巖柱%彎麯剛度%數值解%巖爆
암주%만곡강도%수치해%암폭
rock column%bending stiffness%numerical solution%rock burst
基于平截面假定,利用MATLAB程序编写了岩柱在不同轴向力作用下的弯矩曲率计算程序,以得到地下工程中岩（矿）柱抗弯刚度的计算方法和其弹性区和软化区数值特征,最后分析了轴向力对岩柱抗弯刚度和岩爆的影响,结果表明,随着轴向力的增加,岩柱的抗弯刚度基本不变,但抵抗极限弯矩的能力随之加强,而岩柱在岩爆中释放的弯曲应变能也愈大。
基于平截麵假定,利用MATLAB程序編寫瞭巖柱在不同軸嚮力作用下的彎矩麯率計算程序,以得到地下工程中巖（礦）柱抗彎剛度的計算方法和其彈性區和軟化區數值特徵,最後分析瞭軸嚮力對巖柱抗彎剛度和巖爆的影響,結果錶明,隨著軸嚮力的增加,巖柱的抗彎剛度基本不變,但牴抗極限彎矩的能力隨之加彊,而巖柱在巖爆中釋放的彎麯應變能也愈大。
기우평절면가정,이용MATLAB정서편사료암주재불동축향력작용하적만구곡솔계산정서,이득도지하공정중암（광）주항만강도적계산방법화기탄성구화연화구수치특정,최후분석료축향력대암주항만강도화암폭적영향,결과표명,수착축향력적증가,암주적항만강도기본불변,단저항겁한만구적능력수지가강,이암주재암폭중석방적만곡응변능야유대。
Based on the plane section assumption, a MATLAB code is programmed to calculate the relationship between moment and curvature of rock pillars under different axial force. By which, bending stiffness of rock column and its numerical characteristics in elastic and softening zone can be obtained. Finally, the effects of axial force on rock column bending stiffness and rock burst are analyzed and the results show: with the increase of axial force, bending stiffness of rock column basically unchanged, but the capacity to resist limit bending moment increases, and rock piUar in rock burst release of the bending strain energy increases.
