- it is better to make flexible joints
1- cut the pipes before the tank as cantilever support to the tank
2- connect the two pieces of pipes by flexible winding rubber.
3- fastening the rubber with the pipes by metal rings .
Dr- hamida
Syria
----- Original Message -----
From: "Bhavin Shah" <bhavin.design@gmail.com>
To: <seaint@seaint.org>
Sent: Wednesday, September 24, 2008 10:18 AM
Subject: Tank settlement
> This is regarding tank (15.0m diameter & 15.0m height) supported on
> ring wall (inside of the ring wall has been filled up with the
> compacted sand.) resting on clayey soil.
>
> For design of the foundation total settlement at the tank has been
> considered as 150mm (immediate settlement =15mm + consolidation
> settlement = 135mm) as per the soil report. However, as informed by
> Piping engineer, for pipes (30" dia.)connected to the tank,
> permissible differential settlement is only 50mm because of the
> congested plant and as per the flexibility analysis.
>
> Kindly advice what measures may be taken so that tank foundation can
> be designed for 150mm of the settlement.
>
> Thanks
> Bhavin
>
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