Drill Hole


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drill hole

[′dril ‚hōl]
(engineering)
A hole created or enlarged by a drill or auger. Also known as borehole.

Drill Hole

 

(shpur), a man-made cylindrical cavity in a solid medium, such as rock or concrete, with a diameter up to 75 mm and a depth up to 5 m. Drill holes are used to place blasting charges, to anchor supports, and to force water or cement into the surrounding rock. The holes are drilled with hammer drills, electric drills, and other light-duty drilling machines.

References in periodicals archive ?
Golouma West - Two drill holes, SAB06-01 and SAB06-02, were completed to test favourable excavator trench results across a 400-metre extent along the western portion of the extensive Golouma geochemical anomaly (currently measuring 1.
Follow-up drill holes around the Barrick hole failed to intersect significant gold mineralization in this area.
The three drill holes completed were widely spaced over 550 meters along the gold-in-soil target, and all three drill holes successfully cut the intended target.
The Company is still awaiting receipt of results from diamond drill holes drilled on previously untested structures located in the Central Dachang region.
Also reported here for the first time are silver results from drill hole KD-30, located 100 metres south of KD-37.
Diamond drill hole LCD-24, sited on the same section line as LCD-24 tested the vein at depth.
These ancient people already used sharpened flint attached to wooden rods to drill holes for making beads out of pieces of shell, turquoise, and other materials.
But drill holes only dot the ocean floor over a mere fraction of the globe.
The Company is undertaking a 7,500-foot core drilling program designed to confirm and expand prior drilling at the project, where more than 60 core and RVC drill holes have been drilled by a number of major mining companies over the past 50+ years.
Two drill holes have been completed so far in the central portion of the body.
Earlier today, project operator Fronteer Development Group has reported assay results from a series of drill holes that tested two additional target areas in the district, Jacques Lake and Otter Lake, which are located approximately 25 km and 30 km, respectively, east-northeast of the historic Michelin uranium deposit.