This article elaborated the arrangement way of the grouping centralism tunnel arrange in seam and rock with Xing an Coal Mine as the background when many seams grouping mine,and the ways of grouping centralism uphill(downhill) connect the centralism even tunnel and the grouping centralism tunnel connect mining tunnel.

Rapid Drivage Technology of Rock roadway by Bolting Support

Based on the measured results of the displacement of deep soft rock roadway in MaLuPing mine,the deformation characteristic of the surrounding rock is analyzed.

Make an analysis and approach on the problems of bolting and shotcreting in rock roadway construction, the methods of improving the support result are provided and have made good result.

The priciple of rock drift directional fracture blast and its concrete parameter design are introduced.

The paper outlines the situation that Sanxiao experience is popularized for rock drift excavating also its economic efficiency in aspect of promoting driving rate of advance and decreasing cost.

According to the manage condition of rock drift excavated at present,and combined the coal mine reality,adopt steel tube as provisional forepoling,which is able to have an effect to controlled the roof accident and have fine economic returns and social benefits through 2 years practice.

It emphatically analyses the application of a set of high-speed drifting equipment which mainly includes the imported integrative stone drifting machine MK3 in the south-wing belt conveyor cross-cut of the second panji coal mine in Huainan mining industry group.