Selection od SBC for foundation in water uplift

Project:www.sefindia.org
Component:User interface
Category:support request
Priority:normal
Assigned:utpal02
Status:active
Description

Available deign for RCC ESR foundation is for 10 MT/Sqm. After excavation the strata at 3 m depth below GL is hard murum in Bhandara District, Maharashtra state. The SBC is clearly 25-30 MT/Sqm. But there is Ground water table at 1 m below GL in rainy season and at present 0.45 m water depth existing. Wheather I should proceed with the available design of 10 MT/Sqm or not. Basis of the deciscion is necessary.

Updates

#1 submitted by suresh_kumar on Tue, 06/02/2009 - 08:54

You can reduce the SBC by 50% and start the Design activity.

Regards
sura

#2 submitted by sharath.j.uvce@... on Fri, 01/08/2010 - 15:33

Sir you can reduce sbc by 50%, along with that i would suggest you to provide grade slab and also plinth beams should be provided for both minor and major axis of columns.Depth of excavation should be much higher than the requirement.