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Revision of Ground Trench Excavation Strut Rates from Tue, 2009-07-14 03:07

Posted Tue, 2009-07-14 03:01 by PP Admin

Ground Trench Excavation / Strut Rates (m2/hr)

 Trench width not exceeding 2.0 m wide         

  Trench Depth --> Ne1.5m 1.5-3m 3-4.5m
Single horiz boards Fix Strike 16.7 33.3 - - - -
Double horiz boards Fix Strike 7.7 16.7 7.7 14.3 - -
Single strut vert boards Fix Strike 14.3 33.3 - - - -
Close Boards,with whaling Fix Strike 4.5 9.1 4.2 8.3 4.0 8.0

  Trench width exceeding 2.0m wide                             

  Trench Depth Ne1.5m 1.5-3m 3-4.5m
Single horiz boards Fix Strike 5.6 11.1 5.3 10.0 - -
Double horiz boards Fix Strike 7.1 14.3 7.1 14.3 - -
Single strut vert boards Fix Strike 5.9 112.5 5.6 11.1 5.3 10.0
Close Boards, with whaling Fix Strike 7.1 14.3 6.7 1.3 6.7 12.5

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