RoterPapagei
2022-08-25 08:40:28
- #1
Thank you for the explanations. The neighbor has only a straight staircase. According to my preliminary calculation, it is quite possible to reduce the slope to under 9% by using switchbacks. If you position the house, for example as a compromise, about 15 m (measured horizontally) away from the street, you would have to overcome about 4.5 m of height difference. At a slope of 9%, that would be less than 50 m. I am well aware of the drawbacks, but I see this as a practical solution. Alternatively, one could really dig a tunnel into the slope and install an elevator, although I assume we are talking about 50-100,000 euros there?You have a 28% slope. You want to make paths that only slope downwards very slightly. So you have to make the sides of the path steeper on the left and right. But the additional steepness of the next switchback is added there as well. Simply grading downwards will quickly become borderline, both in terms of stability and maintenance.
Let’s make it concrete. In your original plan, you want to solve 8m through switchbacks. At 10% gradient (absolutely not wheelchair accessible but you are still young and can push the stroller uphill) you need 80m of path length. In the hairpin bends you lose some space, so you have to go back and forth at least 6 times. Then at one hairpin bend to the one two above it directly above in the slope you have a height difference of a good 2.5m. That will get very steep if you only grade downwards.