新型顶底柱、边角残矿回采技术及其在某铅锌矿的应用

矿产资源属于自然界中的不可再生资源，其储量非常有限。为了能够最大程度地开采矿物资源，避免矿产资源不必要的浪费，矿柱的回采势在必行。然而，随着地下矿床的开采，地应力对采矿工作的影响不可避免，矿柱的回采更是如此，回采的同时必须要做好地应力的处理。因此，基于某铅锌矿上部中段现行的顶底柱回采技术，针对其不足之处，提出了一种新型的顶底柱、边角残矿回采技术方案。解决了之前开采技术中存在的采切效率、安全性、贫化率和损失率方面的问题，提高了矿区的经济效益，也为同类型矿山的矿柱回采方案设计提供了一个思路。

New-type mining technology of top and bottom pillars and corners and application in a lead-zinc mine

Mineral resources are non-renewable resources in nature, and their reserves are very limited. In order to maximize the exploitation of mineral resources and avoid unnecessary waste of mineral resources, it is imperative to mine pillars. However, with the exploitation of underground deposits, the influence of in-situ stress on mining work is inevitable, especially for pillar mining, and in-situ stress must be treated well during mining. Therefore, based on the current top and bottom pillar mining technology in the upper middle section of Fankou lead-zinc mine, this paper puts forward a new type of top and bottom pillar and corner residual ore mining technology in view of its shortcomings. The problems of mining efficiency, safety, dilution rate and loss rate existing in the previous mining technology have been solved. It improves the economic benefit of the mining area, and also provides an idea for the pillar mining scheme design of the same type of mine.