Title: Basic technical trends in designing organization of coal mine construction
Abstract: Construction of a large underground black coal mine in USSR according to existing regulations should take 7 to 8 years. In reality, however, the construction period is much longer. One of the causes of delays is low labour productivity resulting from shortcomings in mine construction design. Construction of a coal mine (without machines and equipment) costs 140 to 160 million rubles. During construction, from 2.500 to 3,000 construction workers are employed and in some periods their number increases to 4,500. Possibilities of reducing the construction period of black coal mines are evaluated. Construction of the main shaft of a coal mine takes 4 to 6 years on the average. Duration of construction can be significantly reduced when a method of two hoisting towers is used. One temporary hoisting tower is used during construction of a shaft, and the second stationary tower is constructed in the meantime. When a shaft is completed, the stationary shaft is moved on to the new location over the pit mouth. It is suggested that using this method economizes over 15,000 man days per shaft. Using new methods of shaft reinforcement, tested during ore mine construction, is also recommended. New solutions in the field of surface constructions at underground black coal mines are discussed: blocking various buildings to reduce investment and operation cost and to reduce transportation distances. Recommendations for other improvements in coal mine design are also made. (In Russian)
Publication Year: 1980
Publication Date: 1980-11-01
Language: en
Type: article
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