For drilling injection process, such as sticking and hole collapse, buried drill off the drill pipe, lost drill bit, a lot of running pulp, etc. has been done properly handled, whether the end of the grouting requirements, if not reached, additional measures , so that the quality of the grouting of

In the course notes for drilling the holes, hitters such as card hole drilling, buried, thrown into the drill rod, drill bits, such as syrups ran a lot whether it is done properly, the end is reached, if you request Note pulp is not reached, to supplement the measures so that all note pulp slurry in

Regarding drills in the note process to appear such as jams, collapses the hole, buries thick liquid situations and so on drills, breaks the drill rod, throws the drill bit, runs massively whether has done has processed properly, whether meets the conclusion note thick liquid requirements, if had no

Such as drilling, in the process of drilling and Grouting hole collapse, submerged broken drills, drill pipe, drill bits, lost a lot of run pulp has been done properly, whether to achieve the end of grout requires, if not met, additional measures, that all grout hole Grouting over quality standards.

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