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vikram.jeet
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Joined: 26 Jan 2003
Posts: 3839

PostPosted: Sat Jan 28, 2006 7:43 am    Post subject: Spam: Reply with quote

Water table high :

Following measures could be taken  for foundation design----

i) The allowable bearing pressure (ie safe bearing capacity of soil)
shall be taken 50 % in case it is not reduced in soil report

ii) Isolated Footings worked out on basis of abve said reduced
SBC would be most economical and best suited.

iii) Raft foundation is not desirable unless reduced SBC
is very  very low  . Providing holes in raft protect it
from floatation due to high water table during construction
stage till adequate counterweight comes over it.
Raft will not be  economical .

iv) During concreting of isolated footings ,dewatering
shall be done through pump to lower the water level

with  regards

vikramjeet

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