Vertically upwards seepage is a source of danger on the downstream side of sheet piling and beneath the toe of a dam or levee.
The locations of the walls conflicted with new abutments for the PPC beams, and they made it difficult to install sheet piling for the contractor's support of excavation system.
The engineers built a rectangular frame of sheet piling that was driven by a lever activated ram.
It is very widely used in marine transportation, in the construction of Intermodal containers as well as visible sheet piling along recently widened sections of London's M25 motorway.
When the pumps began operation, a 40-foot-wide opening was made in the sheet piling to allow water to flow out of the canal.
This allowed a change of plans, and marine equipment was used to drive sheet piling at the mouth of the 17th Street Canal to seal off the entire canal from the lake.
By September 1, 2005, the mouth of the 17th Street Canal had been sealed with the sheet piling preventing lake water from getting to the levee breach.
For example, were the quantities of sheet piling increased because ground conditions were worse than expected?
These cofferdams are typically a conventional embankment dam of both earth- and rock-fill, but concrete or some sheet piling also may be used.
This sheet piling way raised the height of the dam again.