What are the reasons for partial drilling of rotary drilling machine?
Operation: when the hole in the rock, boulders and pebbles, weathered rock, floating, compression method to control, if the rapid drilling will form a sharp deviation.
Drilling bucket: the main function of drilling bucket is cutting and drilling, but it also has the function of guiding and preventing deviation. The pilot base drilling bucket with positioning function, at the same time the pilot pointed tip can be changed into order, and the number of teeth of the drill view is not common, the drill body on both sides of the knife or door bar height is not common, these details can make drilling bucket drilling about uniform stress and prevent error.
Geology: partial hole geology is the main reason, if the geological are loess layer, clay layer, so the hole will not appear error phenomenon, mostly by the geological changes, weathered rock, rock distribution and the drilling bucket uneven stress and the formation of.
