Method and means for lining deep shafts

Details Method and means for lining deep shafts Method and means for lining deep shafts

E - Fixed Constructions

21

B

166/17

E21B 33/02 (2006.01) E21B 17/10 (2006.01) E21B 33/127 (2006.01) E21B 33/14 (2006.01) E21B 43/10 (2006.01)

Patent

CA 1067397

ABSTRACT OF THE DISCLOSURE A novel method is provided for lining large diameter boreholes in the ground with grouting cement which method comprises inserting into the borehole an inflatable elastomeric cylinder and filling the space between the inflated cylinder and the wall of the borehole with cement. The method eliminates the need for costly tubular steel borehole linings.

281789

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