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Revision of Ground Trench Excavation Strut Rates from Tue, 2009-07-14 03:01

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

      

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