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Underground mining metal mine collapse pit repairing method
An underground mining metal mine collapse pit repairing method comprises collapse pit monitoring and different treatment measures, an intercepting ditch is arranged outside a collapse pit, and the distance between the intercepting ditch and the collapse pit is equal to the depth of the collapse pit, so that rainwater is prevented from entering the collapse pit, and the collapse pit is prevented from entering a stable period; the blasting position of the vertical collapse pit is determined after a stable period is reached, the distance between the local blasting position and the pit top is 1/2-2/3 of the height of the pit, a slope smaller than 50 degrees is formed after the vertical rock wall is blasted, and a bottom working face is provided for mechanical equipment after blasting.
一种地下开采的金属矿山塌陷坑修复方法，包括塌陷坑监测及不同的处置措施、在塌陷坑外部设置截水沟，截水沟至塌陷坑的距离等于塌陷坑的深度，从而防止雨水进入塌陷坑，待塌陷坑进入沉稳期；达到沉稳期后确定直立塌陷坑的爆破位置，局部爆破位置距离坑顶的距离为坑高度的1/2‑2/3，直立岩壁爆破后形成小于50°的边坡，爆破后为机械设备提供底部工作面。
Underground mining metal mine collapse pit repairing method
An underground mining metal mine collapse pit repairing method comprises collapse pit monitoring and different treatment measures, an intercepting ditch is arranged outside a collapse pit, and the distance between the intercepting ditch and the collapse pit is equal to the depth of the collapse pit, so that rainwater is prevented from entering the collapse pit, and the collapse pit is prevented from entering a stable period; the blasting position of the vertical collapse pit is determined after a stable period is reached, the distance between the local blasting position and the pit top is 1/2-2/3 of the height of the pit, a slope smaller than 50 degrees is formed after the vertical rock wall is blasted, and a bottom working face is provided for mechanical equipment after blasting.
一种地下开采的金属矿山塌陷坑修复方法，包括塌陷坑监测及不同的处置措施、在塌陷坑外部设置截水沟，截水沟至塌陷坑的距离等于塌陷坑的深度，从而防止雨水进入塌陷坑，待塌陷坑进入沉稳期；达到沉稳期后确定直立塌陷坑的爆破位置，局部爆破位置距离坑顶的距离为坑高度的1/2‑2/3，直立岩壁爆破后形成小于50°的边坡，爆破后为机械设备提供底部工作面。
Underground mining metal mine collapse pit repairing method
一种地下开采的金属矿山塌陷坑修复方法
JIN LINGXIAO (author) / MA XIANGRUI (author) / MA ZHAOYUN (author) / GAO WENMEI (author) / WU YATING (author)
2022-05-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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