Research on Drilling Rate Optimization of a UCS Identification System While Drilling for Coal Mine Roadway Roofs

In this paper, to identify the roof unconfined compressive strength (UCS) in process of coal mine roadway support real-time and optimize drilling speed while drilling, paper proposes establishes a test method for assessing uniaxial roof. This can be used drilling. Moreover, mathematical model power output is developed roof-strata identification system with system. The results were as follows: (1) was able rock; (2) pressure drill leg pneumatic bolt did not match motor, motor could reach maximum point, insufficient thrust led failure motor; (3) increase air thus improve speed, we applied booster valve experimental show that has linear relationship speed. way, increased by increasing power.