I have been asked to evaluate the use of sheetpiling driven to rock, possibly coated, as a means of isolating stress and settlement between two adjacent bridge abutment embankment loads built in seperate phases. The first abutment embankment will be constructed directly adjacent to an active highway bridge abutment. The second abutment embankment will be constructed directly adjacent to the newly constructed embankment in the first phase. Has this been done? Is this done all the time? Is sheetpile too flexible? What is a good way to analyze this problem without an FEM program(don't have)? Comments would be appreciated.
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