Because small width, vertical development and no crosswise development of the micro-crack can not produce the good effect of injecting in the construction of shaft bedrock driving, it is a good way to adopt the injecting technique of the high-power and large-diameter blasting propellant to produce crack.

Technology of comprehensive water prevention and control for mine shaft sinking under complicated hydrological conditions;

The application of directional controlled blasting in incline shaft sinking of a mine is introduced.

In the blasting of roadway drivage, the work-face Should be designed to meet the requirements and various inclined holes should be properly arranged.

This article analyzed that the technique of smooth blasting applies in the roadway drivage with theresult and function; computed various parameters in the smooth blasting; and make use of the smooth blasting withthe performance economic good.