pipe trenches are filled with sand and loose earth and normally compaction is
not done/required.
if there is any vehicular movement across the pipe trench then a different
method is used. i.e. main pipe is protected with a sleeve pipe one size higher
than the main pipe.
also please note while using digger buckets/ shovels may damage the pipe, the
coating/ wrapping / cathodic protection if applied.
this 250 mm is enough if the location is totally new & single and no other
piping is existing.
how the compaction is going to help. it only increases the cost and extra stress
on the pipe.
please clarify.
Steve McKenzie <mechproj@xtra.co.nz> wrote:
you need some clearance at each side to compact the bedding material. In
smaller sizes, width is determined by other factors such as
shovel/digger bucket width joint making and compaction access.
Cheers
Steve
-----Original Message-----
From: manjunatha kh [mailto:sagarmanjunath@yahoo.co.in]
Sent: Tuesday, August 10, 2004 7:16 PM
To: PipingDesign@yahoogroups.com
Subject: Re: [PipingDesign] Buried pipe Trench
the good engineering practice for trench width is the diameter of the pipe + clearence of 3" on either side of the pipe ( at one meter depth).
cckla <cckla@pd.jaring.my> wrote:Mr. Manjunatha kh,
Can I konw how you determine this (250mm) ?
Regards,
cckla
250mm
cckla <cckla@pd.jaring.my> wrote:Dear all specialists,
Do you know the minimum width of the trench for a 100mm diameter pipe, which will be considered as embankment backfill ? Is there any standard formula to determine the trench width for embankment backfill for the various pipe size ? Please guide me.
Thank you.
Regards,
cckla
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[Non-text portions of this message have been removed] Received on Tue Aug 10 05:05:00 2004
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