Drill spoil & groundwater management and containment during drilling.
Our Knebel Rigs, offer a unique feature to clamp the top of the steel casing which protrudes vertical above ground level as drilling is underway. Using the casing clamps within the drill table, the clamps tighten around the top of the casing and contain the drill spoil cuttings & discharge groundwater within the hollow section of the drill table and divert from an outlet in the Drill table through a 6" bauer pipe connected to the top of our modified skip. See picture.
The modified skip allows settlement of solids into the first settlement tank and a baffle fabricated into the skip allows settled water to cascade over the top of the baffle to a smaller settlement tank within the skip. The discharge water from the skip has had the benefit of both primary and secondary settlement prior to discharge, therefore, clearer and cleaner water discharges from opposite end (to entry point) into an independent holding tank which in turn can be pumped to disperse the clearer groundwater at an approved discharge point. The solid drill cuttings/spoil contents of the skip will be disposed by a licensed Waste Contractor, if appropriate. This drill spoil & groundwater management and containment method during drilling addresses a real source of concern and annoyance over the years in built up areas or areas sensitive to discharging groundwater & drill spoil flowing uncontained away from the vicinity at the back of the Drill Rig.