Underground Storage Tank subjected to any loading when it is in burying?

  • Thread starter Thread starter baleno911
  • Start date Start date
  • Tags Tags
    Storage Tank
Click For Summary

Discussion Overview

The discussion revolves around the loading conditions of an underground storage tank when buried, focusing on the forces acting on the tank from the surrounding soil and the implications of its cylindrical shape. Participants explore theoretical aspects of stress distribution and structural support in this context.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes that the load on the tank includes its own weight and the weight of the soil above it, questioning whether the force is uniformly distributed along the curved surface of the tank.
  • Another participant suggests that the support for a horizontally positioned tank comes from both the top and bottom curves, likening it to two arches joined together.
  • A different viewpoint proposes that the tank can be modeled similarly to a buried pipe, indicating a potential simplification for analysis.
  • Concerns are raised about the stress applied from the sides and bottom of the tank, with a formula provided for calculating stress based on soil weight and depth, including considerations for hydrostatic pressure if groundwater is present.

Areas of Agreement / Disagreement

Participants express various perspectives on the loading conditions and stress distribution, indicating that multiple competing views remain without a clear consensus on the best approach to model the situation.

Contextual Notes

Some limitations include assumptions about soil properties, the effects of groundwater, and the specific geometry of the tank, which may not be fully addressed in the discussion.

baleno911
Messages
1
Reaction score
0
:smile: As i know there was the load for the weight of tank itself, second will be the volume of the soil on the top of the tank.
Since the horizontal tank is round at the upper part, so is that the force wil be uniformlly distributed along the curve surface?
Is that any force of stress applied from the side? bottom part?

Could i get info in more details in any website?

i appreciate it! :!)
 
Engineering news on Phys.org
If I'm not mistaken, the support is from both the top and bottom curves of the cylinder when positioned on it's side (with a bit of support also from the vertical end walls).

In this case the cylinder is basically two "arches" joined together. One arch is right side up and the other is upside down. :wink:

moo
__________________
moo (moo') adj. Of no practical importance; irrelevant, such as a moo point (i.e. a cow's opinion).
 
Sounds like you might be able to model it just like a big burried pipe. Check out some pipe mfg. sites.
 
baleno911 said:
Is that any force of stress applied from the side? bottom part?

Basically, the stress equals [tex]\sigma = \gamma \cdot z[/tex], where [tex]\gamma[/tex] is the unit weight of the soil, in [kN / m^3], and z the depth. If there is underground water, you'll have to add the hydrostatic pressure, i.e. the pore pressure.

You may want to investigate this link: http://fbe.uwe.ac.uk/public/geocal/SoilMech/stresses/default.htm". (Click on 'stress profile applet'.)
 
Last edited by a moderator:

Similar threads

Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
12K
Replies
2
Views
2K
Replies
13
Views
5K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
11K