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一、前言在采矿工程的各种开拓方案中,溜井被广泛地应用。平窿开拓的矿山溜井是矿石轉运的主要坑道,少則1—3个,多則6—8个以上不等;竪井斜井开拓的矿山溜井也不少;箕斗的溜井系統、罐籠的組合石門开拓、充填系統和露天开采也都需要溜井。但由于工程資料少,生产問題多,因此应該在溜井設計方面进行各种科学研究工作,特別是对結拱問題更需加以研究。二、溜井结拱的种类和成因造成結拱的因素很多,主要是:矿石块度、溜井尺寸、矿石的粘性、含水率和堆放时間等。溜井的結拱情况有二,即大块結拱和細粒結拱,前者是由于大块矿石在放矿时偶然結合而形成,后者
First, the preface In a variety of pioneering programs in mining engineering, slide wells are widely used. Flat open hole mine is the main channel of ore transport, ranging from 1-3, as many as 6-8 more than; Shaft inclined shaft to open up a lot of mine smoothing; skip the well system, cage The combination of Shimen pioneering, filling systems and open pit mining also need to be well. However, due to less engineering data and more production problems, various scientific researches should be carried out in the design of slipways, especially for arch arching. Second, the types and causes of slip-knot arch caused by many factors arching, mainly: ore block size, the size of the chute, ore viscosity, moisture content and stacking time. There are two cases of knotting in the slippery well, namely, large knot arches and fine knot arches. The former is formed by accidental combination of large ores during ore discharge,