摘要
以甘沟铅锌矿地压显现为背景,通过岩石力学测试、地压显现调查、采空区面积估算和地表移动带圈定等综合方法初步分析了矿山井巷工程破坏和地表山体滑坡的原因,利用“三带”理论和爆破振动安全允许距离分别计算并确定了近地表安全开采深度为41.21 m,可为类似矿山缓倾斜薄矿体近地表开采安全提供经验借鉴。
Based on the ground pressure appearance in Gangou lead-zinc mine,the causes of roadway engineering failure and surface landslide are preliminarily analyzed by comprehensive methods such as rock mechanics test,ground pressure appearance investigation,gob area estimation and surface movement zone identification.The near surface safe mining depth of 41.21 m is calculated and determined by using the theory of"three belts"and the safe distance of blasting vibration.It can provide experience and reference for the near surface mining safety of gently inclined thin orebody in similar mines.
作者
翟鑫
赵文奇
张亭
崔耀
ZHAI Xin;ZHAO Wen-qi;ZHANG Ting;CUI Yao(Shaanxi Xunyang Xinyuan Mining Co.Ltd.,Xunyang 725700,China;Northwest Research Institute of Mining and Metallurgy,Baiyin 730900,China)
出处
《甘肃冶金》
2023年第3期118-121,126,共5页
Gansu Metallurgy
关键词
缓倾斜
薄矿体
井巷工程
近地表开采
地压显现
安全开采深度
gently inclined
thin ore body
well and roadway engineering
near-surface mining
ground pressure appears
safe depth
