Hello everyone!
We are now in our little house, and every day I spend several hours in the garden shoveling gravel and soil in various directions. But it’s about time we start thinking about supporting our terrain.
We need to retain a length of almost 42 meters (138 feet). The height will be about 1 meter (3.3 feet). We’ve already talked to a relative who is quite knowledgeable about this kind of work. He recommended simply building a formwork (50 cm (20 inches) deep into the ground and then 1 meter (3.3 feet) high) and pouring concrete into it—of course including reinforcement. This should be significantly cheaper than using L-shaped concrete blocks.
So far, so good.
However, I’m a bit hesitant about having to get all the OSB boards. We thought about pouring in 2 meter (6.5 feet) sections and then reusing the boards each time, but I’m still not really happy with that idea.
Now I’ve seen that formwork can also be rented. Somewhere I saw a picture of a curved formwork (which would also be a curve in our case). Does anyone have experience with this? Can anyone recommend something? Or do you have a completely different approach?
We are now in our little house, and every day I spend several hours in the garden shoveling gravel and soil in various directions. But it’s about time we start thinking about supporting our terrain.
We need to retain a length of almost 42 meters (138 feet). The height will be about 1 meter (3.3 feet). We’ve already talked to a relative who is quite knowledgeable about this kind of work. He recommended simply building a formwork (50 cm (20 inches) deep into the ground and then 1 meter (3.3 feet) high) and pouring concrete into it—of course including reinforcement. This should be significantly cheaper than using L-shaped concrete blocks.
So far, so good.
However, I’m a bit hesitant about having to get all the OSB boards. We thought about pouring in 2 meter (6.5 feet) sections and then reusing the boards each time, but I’m still not really happy with that idea.
Now I’ve seen that formwork can also be rented. Somewhere I saw a picture of a curved formwork (which would also be a curve in our case). Does anyone have experience with this? Can anyone recommend something? Or do you have a completely different approach?
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Bieber08158 Aug 2017 13:31Evolith schrieb:
On one hand, we are losing too much space from the plot Is it different with the wall? Are you allowed to build it on or directly at the boundary line?Bieber0815 schrieb:
Is it different with the wall? Are you allowed to build it right on or very close to the boundary? Yes, we are allowed to place it exactly on the boundary. Behind it, there is only forest land. So no one would mind if it’s a few centimeters less.
Well, the slope would take away about 1 meter (3 feet), whereas the wall only about 20 centimeters (8 inches). Also, a retaining wall looks much better, and a fence can easily be attached to it.
hstkai schrieb:
Another solution:
You dig out your 50cm (20 inches) trench. Pour in (ready-mix) concrete and place 4 rows of formwork blocks on top.
That’s how I built my retaining wall at the same height.That’s how I would do it too. It works really well. We built our terrace (1 meter (39 inches) high) the same way ourselves. It works very well and very quickly. Just make sure to include reinforcement in the formwork blocks and properly protect it from moisture.
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Bieber08158 Aug 2017 14:20Evolith schrieb:
Yes, we are allowed to place it on the boundary line. Behind it is only forest land. So no one would be bothered by a few centimeters less. Just to clarify, are you higher than the forest?
I mean, our neighbor did it as described in #9: a foundation, with concrete blocks "built up" on top. In my opinion, the top of the wall wasn’t finished professionally, but you could probably do better. Fence posts can be anchored within the wall or attached to the side.
One advantage of the concrete blocks, in my opinion, is that they can simply remain as they are. Using formwork like OSB boards or construction timber would basically create waste afterward. That would be a pity—and also more work/effort involved...
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