FLOOD03439

• County: Statewide
• Basin: Statewide
• Title: Design of Sheet Pile Walls
• Date: 3/31/1994
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Educational/Technical/Reference Information

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Chapter 1
Introduction

1.1. Purpose

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The purpose of Ibis manual is 10 provide guidance for
Ihe safe design and economical cons1ruction of sheel
pile relaining walls and floodwalls. This manual does
not prohibit Ihe use of olher melhods of analysis lhal
maintain Ihe same degree of safety and economy as
slructures designed by Ihe melhods outlined herein.

1.2. Applicability

This manual applies 10 all HQUSACE elemenls, major
subordinale commands, dislricls, 1aboraIories, and field
operating activities (FOA) having civil wotks
respoosibilities.

1-3. References, Blbllographlcal and Related
Material

a. References pertaining 10 Ibis manual are lisled in
Appendix A. Additional reference maleriaJs pertaining
10 !he subjecl matter addressed in Ibis manual are also
included in Appendix A,

b. Several compUler programs are available 10 assisl
in applying some of Ihe analytical functions described in
Ihis manual.

(I) CW ALSHI' - Perfmms many of !he classical
design and analysis Iechniques for delennining required
depth of penelration and/or facia' of safely and includes
application of Rowe's Momenl Reduction for anchored
walls. (CORPS Program XOO31)

(2) CW ALSSI - Perfmms suil-struclure inleraction
analysis of canlilever or anchored walls (Dawkins 1992).

1-4. Scope

Design guidance provided herein is inlended 10 apply 10
waIl/soil systems of lraditional heighls and configura-
tions in an essentially Slatic loading environment
Where a system is likely 10 be required 10 wilhsland Ihe
effects of an earthqua1ce as a part of ils design function.
!he design should fonow !he processes and confmm 10
!he requirements of -A Manual for Seismic Design of
WaIcrfronl Retaining SInICIures- (U.S. Anny Engineec

EM 1110.2.2504
31 Mar 94

WaleZways Experimenl Slation (USAEWES) in
preparation).

1-5. Definitions

The fonowing terms and definitions are used herein.

a. Sheel pile wall: A row of in~locking,. vertical
pile segmenls driven to fonn an essentially sln\jghl w~1I
whose plan dimension is suffICiently large lhal lis
behavior may be based on a Iypical unit (usually 1 foot)
vertical slice,

b. C/JIIlilever wall: A sheel pile wall which derives
ils support solely Ihrough inleraction wilh lhe surround-
ing soil.

c. Anchored wall: A sheel pile wall which derives
ils support from a combination of inleraction wilh Ihe
surrounding soil and one (or more) mechanical devi~s
which inhibil motion aI an isolated poinl(S). The design
procedures described in Ihis manual are limiled to a
single level of anchorage.

d. Relllining wall: A sheel pile wall (cantilever or
anchored) which sustains a difference in soil surface
elevalion from one side 10 Ihe oIher, The change in soil
surface elevations may be produced by excavation.
dredging, backfilling, or a combination.

e. Floodwall: A canlilevered sheel pile wall whose
primary function is 10 sustain a difference in waIer
elevation from one side 10 the other. In concepl, a
floodwall is Ihe same as a cantilevered retaining wall.
A sheel pile wall may be a floodwall in one loading
condition and a relaining wall in anolher.

f. I-wall: A special case of a cantilevered wall con-
sisting of sheel piling in Ihe embedded deplh and a
monolilbic concrele wall in Ihe exposed heigh!.

g. Dredge side: A generic term referring 10 Ihe side
of a retaining wall wilh Ihe lower soil surface elevation .
or to Ihe side of a floodwall wilh Ihe lower water
elevation.

h. Retained side: A generic term refening 10 Ihe
side of a retaining wall wilh Ihe higher soil surface
elevation or to Ihe side of a floodwall wilh Ihe higher
water elevation.

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