Hello everyone,
I hope I can get some help from you here.
After living in our new build for 3 years, we finally want to install a privacy fence. We plan to install 1.80m x 1.80m (6 ft x 6 ft) WPC fence panels along a length of 23 meters (75 ft). At the edge of our property, we have set up Bellamur 50 x 25 x 20cm (20 x 10 x 8 inches) masonry blocks. These blocks are stacked in two rows on top of each other, placed on gravel, and filled with concrete. We did this because there is a slight height difference between the street and our property. At the points where the posts will be concreted in, no concrete has been poured yet. At these spots, we can still drill through the masonry blocks into the ground, and I could also drive steel rebar into the soil.
My question is whether this will be sufficient, as the 1.80m (6 ft) fences already have a large surface area and should therefore be stable.
Thanks in advance for your answers.
I hope I can get some help from you here.
After living in our new build for 3 years, we finally want to install a privacy fence. We plan to install 1.80m x 1.80m (6 ft x 6 ft) WPC fence panels along a length of 23 meters (75 ft). At the edge of our property, we have set up Bellamur 50 x 25 x 20cm (20 x 10 x 8 inches) masonry blocks. These blocks are stacked in two rows on top of each other, placed on gravel, and filled with concrete. We did this because there is a slight height difference between the street and our property. At the points where the posts will be concreted in, no concrete has been poured yet. At these spots, we can still drill through the masonry blocks into the ground, and I could also drive steel rebar into the soil.
My question is whether this will be sufficient, as the 1.80m (6 ft) fences already have a large surface area and should therefore be stable.
Thanks in advance for your answers.
I see it similarly! What might work, but isn’t really a proper solution:
1. Dig down at the corresponding spots on the garden side and then "hollow out" under the stones. The problem here will likely be that the gravel keeps shifting.
2. If you manage to do this somewhat neatly, you could pour a small concrete footing using formwork and then install the rebar and posts from above.
However, this is all a makeshift solution, and I suspect that you can’t properly undermine the wall.
1. Dig down at the corresponding spots on the garden side and then "hollow out" under the stones. The problem here will likely be that the gravel keeps shifting.
2. If you manage to do this somewhat neatly, you could pour a small concrete footing using formwork and then install the rebar and posts from above.
However, this is all a makeshift solution, and I suspect that you can’t properly undermine the wall.
I’m not sure what the 25 dimension refers to. But if that’s the width, which is what it looks like to me from the pictures, then the clear width is about 17cm (6.7 inches) minus 8cm (3.1 inches) for the two wall thicknesses. That corresponds to the diameter of a typical earth auger. If he really left a hole like that every 1.8m (6 feet), he can easily pour point foundations 80cm (31.5 inches) deep there. Reinforcement can be added, and the stone courses can also be reinforced horizontally. In my opinion, that should hold, but I’m not a structural engineer.
Thank you very much for the many ideas and suggestions. This is exactly why I asked here—I don’t want to put together something I’ll regret later.
For the WPC fence, aluminum posts will be used. I can even order them up to 300 cm (10 feet) in length, so there should be enough material for embedding in concrete.
The holes in the masonry have a diameter of about 15.5 cm (6 inches). I was planning to get a 130 mm (5 inch) drill bit and try to drill at least 50-80 cm (20-31 inches) below ground level. This way, up to 1.2 m (4 feet) of the post would be set in concrete. Shouldn’t that actually be sufficient?
We also had the idea to get a WPC fence with 2-5 mm (0.08-0.2 inch) gaps between the individual panels. Would this make any difference regarding wind load, or would it hardly have an effect?
For the WPC fence, aluminum posts will be used. I can even order them up to 300 cm (10 feet) in length, so there should be enough material for embedding in concrete.
The holes in the masonry have a diameter of about 15.5 cm (6 inches). I was planning to get a 130 mm (5 inch) drill bit and try to drill at least 50-80 cm (20-31 inches) below ground level. This way, up to 1.2 m (4 feet) of the post would be set in concrete. Shouldn’t that actually be sufficient?
We also had the idea to get a WPC fence with 2-5 mm (0.08-0.2 inch) gaps between the individual panels. Would this make any difference regarding wind load, or would it hardly have an effect?
W
WilderSueden27 Jul 2022 22:14Using a drill is not a bad idea and could work, but 13cm (5 inches) is really a very small diameter and therefore creates only low pressure in the soil.
I’m not sure if such narrow slots will actually provide any meaningful relief. They will probably cause turbulence on the other side, which in turn creates pressure again.
I’m not sure if such narrow slots will actually provide any meaningful relief. They will probably cause turbulence on the other side, which in turn creates pressure again.
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