I was told by the Contractor it was due to void space in the gravelly soil which was unexpected. They are losing the majority of the material during the initial operation which is gravity fed. I believe the drilling only uses air.
At this point I'm trying to determine what a good estimate for...
I am working on a project that uses grouted tie-backs in conjunction with a sheet pile retaining wall. The tie-backs are being installed in a material that has been classified as Poorly Graded Sand (Medium Dense) with the boring log showing sand and medium to fine gravel with cobbles and...
