Method to Remove Temporary Wood Lagging
Method to Remove Temporary Wood Lagging
(OP)
I have been on several projects that use W14X145 or 120 soldier piles with 3x12 wood lagging. How should the lagging be installed to aid in removal without cutting the lagging. Is there an easy way out there to remove the lagging from the bottom up as backfill progresses? Our guys will just cut the lagging creating shorter pieces that cannot be resused on the next project without reducing the pile spacing. We generally space the piles 8'6" on center and use 8' long lagging. We install the lagging behind the front flange. How do you get the lagging loose to aid removal. Has any tried wrapping wire rope around all the lagging during installation and pulling up with a forklift or crane during removal? Our excavations typically are 10-15 ft deep. Thanks.





RE: Method to Remove Temporary Wood Lagging
RE: Method to Remove Temporary Wood Lagging
RE: Method to Remove Temporary Wood Lagging
RE: Method to Remove Temporary Wood Lagging
RE: Method to Remove Temporary Wood Lagging
RE: Method to Remove Temporary Wood Lagging
RE: Method to Remove Temporary Wood Lagging
RE: Method to Remove Temporary Wood Lagging
Just some thoughts: It is presumed that your lagging is all horizontal and not a combination of vertical boards and horizontal members.
Instead of placing the lagging behind the flange as is customarily done. Could you consider welding some u -shaped rebar onto the piles with the free end of the u's turned upwards to retain the lagging. This would be done as you excavate so that lagging can be positioned on the outside of the flage or face of the flange. This way the lagging can be dropped in place. On backfilling, the lagging can be removed from the bottom upwards as the backfill progresses.
Extr time and material is required but you may be able to come up with a scheme that is efficient- eg predrilled holes in the flange and use of a threaded anchor bolts with a 90 degree bend and sufficent hook length to retain lagging.
Would the use of screw piles for the depth of excavation considered.
RE: Method to Remove Temporary Wood Lagging
RE: Method to Remove Temporary Wood Lagging