Assessment of the stability of the underworked sides and ledges of the quarry to determine the area of possible location of the shaft

IF 0.8 Q4 METALLURGY & METALLURGICAL ENGINEERING
Sh.B. Zeitinova, Anuar Imashev, A.M. Suimbayaeva, R.H. Alzhanov, D. Makhmudov
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Abstract

As known, the main methods of developing solid minerals are open and underground methods. However, an analysis of the world’s practice of developing deposits of solid minerals also indicates the widespread use of the combined method of development in the last 50-60 years. Combined development of deposits at domestic and foreign mining enterprises is used due to the variable depth of deposits, which is typical mainly for deposits of steep and inclined fall. The essence of the combined development is that the upper horizons are developed in an open way, and the lower ones are developed underground. In such deposits, the following scheme has become widespread: the initial development of the upper section of the deposit by a shallow quarry (up to a depth of 80-100 m, sometimes more), then the construction of an underground mine, carried out in parallel with the completion of the quarry reserves. When opening sub-quarry reserves subject to underground mining, the resulting quarry space can be used. The penetration of vertical and inclined opening workings, tunnels, and exits from the berm sides or directly from the bottom of the quarry has become widespread. In parallel mining of reserves by open and underground methods, the joint use of transport workings is widely used for the delivery of ore mass from the quarry and underground mine, the placement of an underground crushing complex, auxiliary, and repair facilities in the quarry itself. In addition, the method of refining sub-quarry reserves with the opening of the underground part outside the quarry space has been widely used. After the end of open-pit mining, underground horizons are opened by capital mining workings (vertical, inclined shafts, tunnels).
对采石场未开挖的侧面和壁架的稳定性进行评估,以确定竖井的可能位置
众所周知,开发固体矿物的主要方法是露天和地下方法。然而,对世界开发固体矿产矿床实践的分析也表明,在过去50-60年中,联合开发方法得到了广泛使用。由于矿床深度的变化,国内外矿山企业采用了矿床联合开发,这是典型的,主要针对陡峭和倾斜的矿床。组合开发的本质是上层是露天开发的,下层是地下开发的。在此类矿床中,以下方案已得到广泛应用:浅层采石场对矿床上部进行初步开发(深度可达80-100米,有时更高),然后在完成采石场储量的同时建造地下矿山。当打开地下开采的子采石场储量时,可以使用由此产生的采石场空间。垂直和倾斜的露天工作区、隧道以及从护堤侧或直接从采石场底部的出口的渗透已经变得普遍。在露天和地下开采储量的平行开采中,运输工作的联合使用被广泛用于从采石场和地下矿山输送矿石,在采石场内放置地下破碎综合体、辅助设施和维修设施。此外,通过开放采石场空间外的地下部分来精炼地下采石场储量的方法已被广泛使用。露天开采结束后,通过资本开采工作(垂直、斜井、隧道)打开地下层位。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
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42.90%
发文量
55
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