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failing CHB Fence reinforced with retaining wall

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StewardMM

StewardMM

Civil/Environmental
Mar 5, 2012
37
Hi!

i would like to seek for advice.

we have an existing CHB wall Fence constructed along our property line. adjacent to our property is a private residential house that is around 1.5-1.8 higher in elevation than our property.

the area experienced heavy rains the past days and because the adjacent property has no proper drainage system, it caused to much weight on their side of the soil causing bulging of our perimeter fence.

I plan to construct a retaining wall inside our property. with gravel in it to support our chb fence.

can i solicit from the group any additional inputs that might help with our plan?

attached is draft plan
 
 https://files.engineering.com/getfile.aspx?folder=dd2eb331-4518-4d95-bfd5-ea1e8718ce95&file=ret_wall_plan.png
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...much weight on their side of the soil causing bulging of our perimeter fence.
Click to expand...

You didn't mention length of the proposed retaining wall. Excavation for the proposed footing for all but a very short length may (probably will) collapse the existing wall (on top of workers performing excavation).

Instead, construct a gravity segmental retaining wall:

Segmental_Wall_cvlxj5.png
 
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CHB? concrete hollow block? Is it grout filled and reinforced?

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
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Thank you for your feedback..

The planned retaining wall is around 20meters in length and approx 1.5- 1.8m high..

There's a constraint on Segmental Gravity wall since the fence is near a building structure. Buidling and Fence is 1.8meters in distance.

fence_kreehe.png
 
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StewardMM - Do the math to properly design the retaining wall (accurate loading, realistic dimensions, appropriate safety factors, etc.) per your proposal. I believe you will find the width of footing and depth of necessary excavation will make practical, safe construction impossible in the limited space.

Perhaps this will convince you that modifying existing building doorways, etc. and using a segmental retaining wall has a higher chance of success.

You could consider something like soldier piling, sheet piling, etc. but there are risks (and high costs) with that approach, too.

 
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