At the mining depths reached in the Karaganda coal basin (up to 830 m), it is impossible to achieve maintenance-free maintenance of workings using modern supports. This would require a support resistance of over 1.7 MN/m2, but modern supports have a resistance not exceeding 0.2 MN/m2. It is necessary to look for other ways to improve the condition of workings and save material resources.
ASSESSMENT OF THE AREA OF USING ANCHORING IN MINING WORKS DEPENDING ON INFLUENCED FACTORS
V.F. Demin, A.M. Zakharov, S.N. Dvuzhilova, T.V. Demina (Karaganda, Republic of Kazakhstan) | Завантажити статтю