A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Notes on practice during last 24 years, during which 14,000 borings were made, with total over 60,000 meters; brief description of drilling machine with 8-hp. compressed-air motor; diameter of holes about 40 mm., giving cores 23 mm. in diam. boring was done to obtain geological information to guide against firedamp and water hazards, and as part of mine drainage program.
Notes on practice during last 24 years, during which 14,000 borings were made, with total over 60,000 meters; brief description of drilling machine with 8-hp. compressed-air motor; diameter of holes about 40 mm., giving cores 23 mm. in diam. boring was done to obtain geological information to guide against firedamp and water hazards, and as part of mine drainage program.
Use of borings in the underground workings of the bruay mines
L'emploi des sondeuses dans les travaux souterrains des Mines de Bruay
Didier (author)
1929
3 pages
Article (Journal)
French
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