Return to index: [Subject] [Thread] [Date] [Author]

RE: Active, At-Rest, Passive Soil Pressure

[Subject Prev][Subject Next][Thread Prev][Thread Next]
You have to figure that out yourself [IBC  1805.5.5]

equivalent fluid wt=(1-sin(internal angle friction))*(soil
density-62.4)+62.4 pcf

Scott M Haan P.E.
Plan Review Engineer
Building Safety Division 
Development Services Department
Municipality of Anchorage
http://www.muni.org/building
phone:907-343-8183  
fax:907-249-7399
mailto:haansm(--nospam--at)ci.anchorage.ak.us



-----Original Message-----
From: Jeff Smith [mailto:smthengr(--nospam--at)sirius.com]
Sent: Wednesday, August 22, 2001 1:51 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Active, At-Rest, Passive Soil Pressure



|~|However, at-rest pressure is now codified in the 2000 IBC, which
|~|does a much
|~|better job with basement walls and retaining walls than the UBC did.  IBC
|~|Table 1610.1 gives prescriptive active pressure values for USCS
|~|soil types
|~|and indicates to use 60 pcf for granular soils on walls
|~|restrained by rigid
|~|floors [at-rest pressure] and 100 pcf for silt-clay on restrained walls.
|~|Further it indicates wood joist floors are not considered rigid.

What would be the highest pcf force on a restrained retaining wall with no
drainage to relieve hydro static pressure, assuming no surcharge forces and
level backfill?

Jeff


* 
*   This email was sent to you via Structural Engineers 
*   Association of Southern California (SEAOSC) server. To 
*   subscribe (no fee) or UnSubscribe, please go to:
*
*   http://www.seaint.org/sealist1.asp
*
*   Questions to seaint-ad(--nospam--at)seaint.org. Remember, any email you 
*   send to the list is public domain and may be re-posted 
*   without your permission. Make sure you visit our web 
*   site at: http://www.seaint.org 

* 
*   This email was sent to you via Structural Engineers 
*   Association of Southern California (SEAOSC) server. To 
*   subscribe (no fee) or UnSubscribe, please go to:
*
*   http://www.seaint.org/sealist1.asp
*
*   Questions to seaint-ad(--nospam--at)seaint.org. Remember, any email you 
*   send to the list is public domain and may be re-posted 
*   without your permission. Make sure you visit our web 
*   site at: http://www.seaint.org