According to the working process of the drifting machine with swinging arm,the mathematic model and computer program of the section shaping control are constructed,which provides a theoretic basis for the section shaping control of the drifting machine.

Optimizing roadway section and lifting mine benefit;

Have introduced smooth surface to blow smooth surface up porthole, technical requirement as well as the kind of technical principle,advantage and porthole the basic requirement that arranged,so elaborate to blow up technology in rock alley driving the importance for that tunnel becomes shape.