I am on a job in NYC so all rebar bending is done on site.
I have a rebar detailer who detailed a bar with two bends. The drawing shows a 31'-08" bar. The delivery ticket shows a 31'-08" bar but the actual length is 31'-5.75". The bar tag says 31'-5.75" as well. He is telling me that the...
We are drilling a secant pile wall for a cofferdam excavation. We had a sinkhole along the side of the guide wall. We are pulling the casing as we tremie the concrete. THe material varies from sands to clay. What can cause that- a drilling technique or a poorly constructed guide wall?