1 / 6

# SHEET PILE WALLS - PowerPoint PPT Presentation

SHEET PILE WALLS. generally used for retaining shallow heights of soil wharfs, key walls temporary structures for excavation (eg. dredging). From McCarthy, 6 th Edition. Cantilever Sheet Pile Walls. stability depends on passive resistance developed below the lower soil surface

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

## PowerPoint Slideshow about ' SHEET PILE WALLS' - debra-joseph

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

### SHEET PILE WALLS

generally used for retaining shallow heights of soil

wharfs, key walls

temporary structures for excavation (eg. dredging)

From McCarthy, 6th Edition

• stability depends on passive resistance developed below the lower soil surface

• failure is by rotation about a point O near bottom of wall

Active E.P.

Depth of embedment, d

d

O

Passive E.P.

fixity

Active E.P.

Passive E.P.

d

R

C

Danish Rules to prevent rotation

• a factor of safety, FPis applied to the passive resistance in front of the wall

• take moments about C to calculate d

• then, increase d by 20% (empirical)

• finally, check that the passive resistance provided by the extra 20% is > R, where R = SPH

Free Earth Support to prevent rotation

tie rod

T

da

A

b

• Determine the depth of embedment, d by taking moments about A (SMA = 0, apply FP)

• Find tension, T from SFH = 0 (don’t apply FP)

• Constraints: failure wedges must not overlap

b >½da

Passive E.P.

45° - f/2

Active E.P.

anchor wall

d

45° + f/2

no fixity