摘要
为了研究傍山隧道爆破振动在邻近边坡的传播规律,设计了4个隧道模型进行爆破试验,试验结果表明:傍山隧道爆破振动在邻近边坡上的传播随水平距离及爆心距的增大而减小,随高差增大而增大,受爆心距的影响最大,垂向振速>径向>切向。边坡形态、最终边坡角和台阶坡面角都会对爆破振动在边坡传播产生影响,4个模型坡顶与台阶边坡坡面都出现了振速放大现象,傍山隧道爆破振动对顶部的影响比对坡面的影响大,对台阶边坡的影响比直面边坡的影响大。
In order to study the propagation of side slope of blasting vibration on mountain-adjacent, 4 tunnel models for trial are designed, and the results show that the propagation of blasting vibration on the slope of the mountain-adjacent tunnel decreases with the horizontal distance and detonating distance magnify, but increases with the height magnify. The effect by the vertical vibration is the biggest, with velocity 〉 radial 〉 tangential. The shape of the slope, the ultimate slope angle and bench slope angle are influenced on slope propagation, 4 model slopes and step slope appear the elevation amplification effect. Influence of blasting vibration effect on the top of mountain-adjacent tunnel is more than that on slope, and effect on step slope is bigger than that on side slope.
作者
徐金贵
蒲传金
贺高威
肖定军
冯阳阳
XU Jingui;PU Chuanjin;HE Gaowei;XIAO Dingjun;FENG Yangyang(School of Environment and Resource, Southwest University of Science and Technology, Mianyang Sichuan 621010, China;Non-Coal Mine Safety Technology Key Laboratory of Sichuan Province Colleges and Universities, Mianyang Sichuan 621010, China)
出处
《有色金属（矿山部分）》
2018年第3期51-58,112,共9页
NONFERROUS METALS(Mining Section）
关键词
傍山隧道
爆破振动
模型试验
振动测试
边坡形态
mountain-adjacent tunnel
blasting vibration
model trial
vibrator test
slope shape
