Design of Sheet Pile Wall
Design of Sheet Pile Wall
(OP)
Dear All Fellow Engineers,
I have a little problem with which you may be able to offer some advice. We are looking at the design of a simple sheetpile retaining wall about 5m deep and with two layers of struts in loose sand.
The designer has adopted the Peck charts for earth pressure. The engineer has disagreed and requested a triangular earth pressure distribution.
Every book I have checked appears to contradict the other on the use of Pecks charts for shallow excavations. To compound the problem the excavation has been opened and withstood the most severe weather conditions over 6 weeks.
Can anybody shed any light on the appropriate use of strutted earth pressure charts without recommending I buy more textbooks.
Regards
Newbuilder
I have a little problem with which you may be able to offer some advice. We are looking at the design of a simple sheetpile retaining wall about 5m deep and with two layers of struts in loose sand.
The designer has adopted the Peck charts for earth pressure. The engineer has disagreed and requested a triangular earth pressure distribution.
Every book I have checked appears to contradict the other on the use of Pecks charts for shallow excavations. To compound the problem the excavation has been opened and withstood the most severe weather conditions over 6 weeks.
Can anybody shed any light on the appropriate use of strutted earth pressure charts without recommending I buy more textbooks.
Regards
Newbuilder





RE: Design of Sheet Pile Wall
Generally, for a single sided retaining wall with props, the classic method of analysis is to use a Rankine (triangular) earth pressure and design the wall based on a fixed or pinned toe in of the sheets into the ground.
However, when one stands back and looks at the problem, the likelyhood is that the Peck method will work provided you have followed the design rules for props and sheets. You can, in theory, argue that you have actually designed one half of a wide trench!! I would regularly inspect the toe of the sheets to check for movement, piping and boiling if the phreatic surface of the retained sand is above formation level.
Best regards
Andy Machon
Andy@machona.freeserve.co.uk
RE: Design of Sheet Pile Wall
Regards
Andy Machon
Andy@machona.freeserve.co.uk
RE: Design of Sheet Pile Wall
Thanks for the advice.
rkp
RE: Design of Sheet Pile Wall
http://geotech.civen.okstate.edu/ejge/ppr9601/retwall.htm#Retaining Wall Design
also http://www.ggsd.com/