Grout pack restraining system

Details Grout pack restraining system Grout pack restraining system

E - Fixed Constructions

21

D

E21D 15/48 (2006.01) E21D 15/00 (2006.01) E21D 20/00 (2006.01) E21D 23/04 (2006.01)

Patent

CA 2550247

The invention provides a grout pack restraining system which includes a plurality of elongate elements shaped to extend about a grout pack and which are characterised in that they are configured to control circumferential expansion of the grout pack beyond the expansion permitted through material yield of the elements. In one embodiment the rings of different diameter are secured about the grout pack. In a further embodiment rings which are configured to be circumferentially expandable are secured about the grout pack.

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