Sheet Pile Deflection
Sheet Pile Deflection
(OP)
Hi everybody! I need your help. We have an on-going project, Cistern tank. We used sheet piles with horizontal struts. When the struts were removed the sheet pile deflected at about 12 inches. The excavation depth is 6.50 meters. How can you compute the allowable deflection for sheet pile?





RE: Sheet Pile Deflection
As for the allowable deflection; there are two things to be checked. One is the structural capacity of the sheet pile in bending. Simply calculate the bending moment, convert that the the stress in the outer fibers and compare to the allowable stress for the steel.
The second is the effect of the deflection on what you are trying to protect. It does not matter if the steel is ok if the building/utility/etc. that you are protecting falls apart.
If you give us some additional information, we may be able to help.
RE: Sheet Pile Deflection