Brekke et al., 1972 - Google Patents
Stability problems caused by seams and faultsBrekke et al., 1972
- Document ID
- 14511107261462760367
- Author
- Brekke T
- Howard T
- Publication year
- Publication venue
- N Am Rapid Excav & Tunnelling Conf Proc
External Links
Snippet
OFTEN THE EXISTENCE OF FAULTS OR SEAMS ARE KNOWN PRIOR TO EXCAVATION, HOWEVER, SOMETIMES THE BEHAVIOR OF THESE ZONES HAS BEEN MISCALCULATED. SOME OF THE APPROACHES THAT ARE AVAILABLE FOR …
- 239000000463 material 0 abstract description 14
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
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