我队今年,一般是在5～10級岩石鑽进,其中有局部和个别的鑽孔,地层受断层影响,岩石过于破碎,以致个別鑽孔矿心采取率达不到地質要求,需要补量,造成反工。采用双重双动的合金質量鑽具和双重双动的软泥質量鑽具,有时采取率不够,即使采取上来,回次进尺仅达到0.2～0.25米,且升降鑽具, My team this year, generally in the 5 to 10 rock drilling, which has partial and individual drilling, the formation affected by the fault, the rock is too broken, so that the individual mining core mining rate does not meet the geological requirements, the need to fill Amount, resulting in anti-workers. The use of double double action alloy quality drilling tools and dual double action slime quality drilling tools, and sometimes take the rate is not enough, even if taken up, back to the footage only reached 0.2 ~ 0.25 meters, and lifting drill,