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| Using Intermediate Buffer Temporary Warehouses Inside the Working Area of the Gold Mining Quarry |
Khayitov Odiljon G'ofurovich, Fatkhiddinov Asliddinjon O'tkir o'g'li, Umirzoqov Azamat Abdurashidovich, Ochilov Sanjar
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Abstract:
The use of cyclical-flow technology with a multi-link transport system requires rhythmic operation of the quarry, which excludes unproductive downtime of conveyor complexes. However, the use of cars in the system of loading and transport complex, as shown by the experience of both the Krivbass and Muruntau quarries, determines a significant variation in the parameters of cargo flows. This leads to uneven cargo flow entering continuous transport, and, as a result, to a significant decrease in the design performance of complexes with a corresponding deterioration in technical and economic performance indicators. Specific areas are the prediction and assessment of the mechanical properties of rock mass, the mechanics of controlling fractured rock around deep mining excavations and the resulting demands on support systems. Rock engineering aspects of stoping systems and the regional stress changes resulting from the extraction of large mineral bodies are discussed in detail. The progress in design concepts for open stopes and stopes with caving of the roof strata is illustrated. Analysis of the study of dynamic characteristics of cargo flow shows that this process is generally carried out in two modes: stationary and transient (the beginning and end of the shift and the lunch break), which indicates a significant unevenness of cargo flow during the shift.
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