Water resisting wall ! 3

[Chunil]

Building(GL +12 ) is located beside river(GL +-0).
----------
a______lBUILDINGl
/
/ slope 12m high!
river__/


In the rainy season it overflows over 12m high! so every rainy season building is damaged by rain,
So we are trying to protect overflow.
We are trying to build some structure at "a" point !
Need a suggestion about this condition.
Which type of water resisting structure is most proper ?
Which should be checked and considered when design ?
Do u have similiar experience about this ?
Thaqnk u!

 

[AlohaBob]

We designed an undergound parking lot below the water table. Sheet piling was used to reduce the head on the soil side. Waterstop and Sumps were designed to keep the floor dry.

 

[GeoPaveTraffic]

Options include building an earth levee, very common here in the mid west of the US. However, the side slopes are generally constructed at 3H:1V and you would be adding significant weight near the crest of the existing river bank. Slope stability would need to be checked.

The other most common solution would be flood wall. Flood walls can be constructed with just about any material. Most of the ones that I have built were made of concrete, designed much like a "T" retaining wall. Sheet piles can also be used, however, a single line tends to leak very badly.

 

[Focht3]

Depending on the local cost of construction, required wall height, size of area to be protected, etc., the flood wall approach could cost more than replacing the building.

It might be cheaper to raise the building, too. Or abandon the site altogether.



Please see FAQ731-376 for great suggestions on how to make the best use of Eng-Tips Fora.

 

[Chunil]

GeoPaveTraffic! Would u mind giving me more information about flood wall ? Everything about that...is be welcomed and very helpful to me.
My e-mail address is dorian91@intizen.com

Thanks to GeoPaveTraffic and others also~!

 

[GeoPaveTraffic]

In my opinion flood walls are best designed by engineers with experience in their design. If you can't find someone to work with who has that experience, be very careful. There are a lot of small details that have been learned over time that can get you.

The best design methods for these structures were developed by the U.S. Army Corps of Engineers, see the link below. The design manuals for Levees and Flood Walls are also listed below.

http://www.usace.army.mil/inet/usace-docs/eng-manuals/em.htm

EM 1110-2-1913

EM 1110-2-2502

 

[VAD]

From what I understand from the information provided damage to building seems to be caused by slope degradation based on the position of where you intend to place structure. Is this is correct. What flow is obtained during rainy season.
If my interpretation is correct then there can be other approaches than constructing a flood wall.

 

[cdh61]

Chunil,
What is the soil types along the river bank? Has anyone drilled any test holes to classify soils or completed any slope stability assessments along this section of river? How high is the flood water over the top of bank? What is the setback distance of the building to the top of bank, and what is the slope of the river bank?

Please provide a bid more background on site, if possible. As others have said there are may types of designs/materials that could be used as a flood wall. But the type chosen will depend on site conditions. There is no one wall of all locations, I have worked on several flood walls, and all very from site to site.

regards