Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preventing stone rolling on edge of high and steep slope of surface mine
The invention discloses a surface mine high and steep slope near-edge stone rolling prevention method which comprises the steps that S1, a row of first presplitting holes are drilled in the position, 5-10 m away from a slope crest line, of an upper operation area, and multiple rows of first main blasting holes are formed in the sides, away from the slope crest line, of the first presplitting holes; s2, the first presplitting hole and the first main blasting hole are subjected to blasting operation of charging, filling, line connecting and blasting, and the loosened rock after blasting is shoveled to form a thick rock wall with the upper portion being 5-10 m wide; s3, a row of second pre-splitting holes are drilled in the position, 1-1.5 m away from the slope top line, of the thick rock wall, and multiple rows of second main blasting holes are formed in the positions, on the sides, away from the slope top line, of the second pre-splitting holes, of the thick rock wall; s4, blasting operation of charging, filling, wire connecting and detonating is conducted on the second pre-splitting hole and the second main blasting hole, and shoveling loading is conducted on the loosened rock after blasting so that a thin rock wall with the upper portion being 1-1.5 m wide can be formed; and S5, the thin rock wall is broken through a breaking hammer. By the adoption of the method, the rolling stones can be effectively prevented from falling, and a good safety protection effect is achieved on a lower operation area.
本申请公开了一种露天矿山高陡边坡临边防滚石的方法，包括：S1、在上部作业区距坡顶线的5‑10m处钻凿一排第一预裂孔，在第一预裂孔远离坡顶线的一侧设置多排第一主爆孔；S2、对第一预裂孔和第一主爆孔进行装药、填塞、连线、起爆的爆破作业，对爆破后的松动岩石进行铲装，以形成上部5‑10m宽的厚岩壁；S3、在厚岩壁距坡顶线1‑1.5m处钻凿一排第二预裂孔，在第二预裂孔远离坡顶线一侧的厚岩壁上设置多排第二主爆孔；S4、对第二预裂孔和第二主爆孔进行装药、填塞、连线、起爆的爆破作业，对爆破后的松动岩石进行铲装，以形成上部1‑1.5m宽的薄岩壁；S5、对薄岩壁采用破碎锤进行破碎。采用该方法，可以有效防止滚石下落，对下部作业区起到了很好的安全保护作用。
Method for preventing stone rolling on edge of high and steep slope of surface mine
The invention discloses a surface mine high and steep slope near-edge stone rolling prevention method which comprises the steps that S1, a row of first presplitting holes are drilled in the position, 5-10 m away from a slope crest line, of an upper operation area, and multiple rows of first main blasting holes are formed in the sides, away from the slope crest line, of the first presplitting holes; s2, the first presplitting hole and the first main blasting hole are subjected to blasting operation of charging, filling, line connecting and blasting, and the loosened rock after blasting is shoveled to form a thick rock wall with the upper portion being 5-10 m wide; s3, a row of second pre-splitting holes are drilled in the position, 1-1.5 m away from the slope top line, of the thick rock wall, and multiple rows of second main blasting holes are formed in the positions, on the sides, away from the slope top line, of the second pre-splitting holes, of the thick rock wall; s4, blasting operation of charging, filling, wire connecting and detonating is conducted on the second pre-splitting hole and the second main blasting hole, and shoveling loading is conducted on the loosened rock after blasting so that a thin rock wall with the upper portion being 1-1.5 m wide can be formed; and S5, the thin rock wall is broken through a breaking hammer. By the adoption of the method, the rolling stones can be effectively prevented from falling, and a good safety protection effect is achieved on a lower operation area.
本申请公开了一种露天矿山高陡边坡临边防滚石的方法，包括：S1、在上部作业区距坡顶线的5‑10m处钻凿一排第一预裂孔，在第一预裂孔远离坡顶线的一侧设置多排第一主爆孔；S2、对第一预裂孔和第一主爆孔进行装药、填塞、连线、起爆的爆破作业，对爆破后的松动岩石进行铲装，以形成上部5‑10m宽的厚岩壁；S3、在厚岩壁距坡顶线1‑1.5m处钻凿一排第二预裂孔，在第二预裂孔远离坡顶线一侧的厚岩壁上设置多排第二主爆孔；S4、对第二预裂孔和第二主爆孔进行装药、填塞、连线、起爆的爆破作业，对爆破后的松动岩石进行铲装，以形成上部1‑1.5m宽的薄岩壁；S5、对薄岩壁采用破碎锤进行破碎。采用该方法，可以有效防止滚石下落，对下部作业区起到了很好的安全保护作用。
Method for preventing stone rolling on edge of high and steep slope of surface mine
一种露天矿山高陡边坡临边防滚石的方法
XIE DAIHONG (Autor:in) / WU DAN (Autor:in) / LI SHIBIN (Autor:in) / LIU SONGMAO (Autor:in) / QIAN YONGCONG (Autor:in)
26.07.2024
Patent
Elektronische Ressource
Chinesisch
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