28 February 2012

Pipeline Construction

With pipe for the Wilmot Pipeline placed into the trench yesterday, there were two excavators at the cabin property working to back-fill the trench.

At first glance the buckets on these excavators were different ...



Bottom view of the excavator buckets showed several rows of slotted rollers.



Inside view of buckets.



These buckets are able separate rocks from the dirt by rotating the rollers. The loose, rock free dirt is spread directly over the pipe and the removed rock are placed near the top of the trench and not in contact with the pipe.

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