Hello
We have a new build and are struggling with waterlogging in the garden.
The soil is very clayey and contains a lot of peat.
To address the waterlogging, we want to drill drainage holes about 1.8 to 2.4 meters deep (6 to 8 feet), deep enough to break through the clay layer.
After that, we plan to fill the holes with sand to sustainably loosen the clay so that water can drain better.
The problem is that the soil contains many stones at a depth of about 40 to 80 centimeters (16 to 31 inches) before the clay layer begins.
Our 200mm (8 inch) earth auger cannot get through the stones.
What can we do to remove the stones?
How can we remove the stones without having to dig up the whole garden?
Is it possible to remove or crush the stones locally around the holes?
Thank you for your help.
We have a new build and are struggling with waterlogging in the garden.
The soil is very clayey and contains a lot of peat.
To address the waterlogging, we want to drill drainage holes about 1.8 to 2.4 meters deep (6 to 8 feet), deep enough to break through the clay layer.
After that, we plan to fill the holes with sand to sustainably loosen the clay so that water can drain better.
The problem is that the soil contains many stones at a depth of about 40 to 80 centimeters (16 to 31 inches) before the clay layer begins.
Our 200mm (8 inch) earth auger cannot get through the stones.
What can we do to remove the stones?
How can we remove the stones without having to dig up the whole garden?
Is it possible to remove or crush the stones locally around the holes?
Thank you for your help.
F
FrankChief16 Nov 2023 15:15A mini excavator is not an option; it cannot access the garden (we have to go through the house to get to the garden).
I think they are rubble stones (with a hammer and steel rod, you can eventually break them with a lot of effort, which is why I’m now looking for something that could make the work easier).
I think they are rubble stones (with a hammer and steel rod, you can eventually break them with a lot of effort, which is why I’m now looking for something that could make the work easier).
We had the same issue back then. Before starting construction, we removed the soil with a loader and then sifted it. After that, we spread the sifted soil plus a bit of new soil again. It was about 1000m² (12,000 sq ft), and two years ago we replaced the rest of the garden soil without sifting.
I think you won’t be happy without sifting or a complete replacement. It’s really frustrating if you can’t even make the first spade cut without having to work through a layer of stones.
I think you won’t be happy without sifting or a complete replacement. It’s really frustrating if you can’t even make the first spade cut without having to work through a layer of stones.
F
FrankChief16 Nov 2023 19:27Do you think the demolition hammer can break the stones apart? Or does it just push the stones into the ground?
The stones are only at a depth of 40-80 cm (16-31 inches); beyond that, there are no more.
The stones are only at a depth of 40-80 cm (16-31 inches); beyond that, there are no more.
F
FrankChief16 Nov 2023 19:37Which chisel attachment would you recommend?
Simply a long flat chisel of 600cm (197 feet) or 1000cm (328 feet)?
Simply a long flat chisel of 600cm (197 feet) or 1000cm (328 feet)?
FrankChief schrieb:
Which attachment would you recommend?
Simply a long 600 or 1000cm (20 or 33 ft) flat chisel? Yes, rent one and try it out.
This doesn’t sound like granite stones, but rather a demolition layer that wasn’t removed but was instead covered up.
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