secant pile sinkholes
secant pile sinkholes
(OP)
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?





RE: secant pile sinkholes
RE: secant pile sinkholes
RE: secant pile sinkholes
RE: secant pile sinkholes
Have the concrete volumes been checked and compared to the "design volume" of the pier? If the material is entering the pier, then the grout volume would be too low.
Where is the end of the tremie in relation to the end of the casing and the concrete surface? Is ther sufficient slump to prevent bridging in the casing?
RE: secant pile sinkholes
I am confused about "bridging". Could it be a problem with the mix design?
THank you for your help.
RE: secant pile sinkholes
RE: secant pile sinkholes