【Uzibekistan News】Smooth Breakthrough of Shargun Coal Mine Inclined Ventilation Shaft
7 o'clock local time of October 24, the inclined ventilation shaft of Shargun Coal Mine welcomed its breakthrough. The 287-meter-long inclined ventilation shaft’s cross section is 6.3m2, with the dip angle being +25°. The seemingly short and small carven had caused great difficulties for the construction of our ongoing Shargun Coal Mine Upgrading Project in Uzbekistan.
one-direction excavation method was adopted by the project department for its construction. All equipment and material needed were hoisted by the winch. I-shape beams were erected one kilometer below the ground. By strict implementation of short footage and strong support, the shaft smoothly passed through weathered and fractured zone, and finally realized its safe and timely breakthrough.
As the result, the ventilation distance is shortened by 2,000m and the ventilation effect of the Footrill 10 will be highly improved, which in turn upgrades the ventilation system efficiency and greatly improves the construction work condition.
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