A low cost temperature compensation system, consists of multi temperature sensors, are used to illustrate how to effectively solve the problems of temperature compensation caused by temperature drift.

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.

This paper introduces driving rock drift with minor diameter bit, minor diameter cartridage and minor diameter bolt, it can realize smooth blasting, roadway speed is raised, driving cost is reduced.