Walking and bridging inner transport passage for open cast coal mine

Abstract

The walking and bridging inner transport passage of opencast coal mine is especially suitable for horizontal opencast coal mine with single bucket excavator and truck. The intermediate walking bridge is adopted for inner transport passage. For the advancing process of the working slope, there are stable slope for the coal stages in the lower horizontal end slopes and intermediate bridge for the lower horizontal soil draining passage. The bridge may be single bridge, double bridge or mixed bridge. The method is simple and has reduced truck transportation distance, low transportation cost, recovery of residual end slope coal and high economic benefit.

Description

technical field [0001] The invention relates to a step-by-step bridge in an open-pit coal mine that penetrates the inner row of transportation passages, and is especially suitable for the inner row of a horizontal or near-horizontal open-pit coal mine using a single-bucket excavator-car mining process, which can reduce vehicle transportation distance, reduce transportation costs, and recycle the open-pit coal mine. Help the residual coal. Background technique [0002] Under the condition that the horizontal or near-horizontal open-pit coal mine adopts the single-bucket excavator-automobile mining process for inner rowing, the traditional transportation system layout usually adopts the inner row around the two side walls (double ring inner row) or the inner row around one side end side ( single ring inner row). Although this mode of transportation can complete the task of internal platooning, the transportation distance of the car is long a...

AI Technical Summary

Problems solved by technology

Although this mode of transportation can complete the task of internal platooning, the transportatio

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