In airports and airstrips where flammable petrol is kept, it must be contained with spill containment berms that prevent flows to the adjoining suburbs. These mounds must be inclined meticulously to merge with the rest of the landscape features such as trees, grass, flowers and steps. At five percent, the ground does indeed have a distinct gradient to it.
Commonly, the ground has to be steeper than 3 percent to be perceived as being slanted. The steeper the site, the more pronounced these conditions are. All angled ground has an unsteady feeling to it for several reasons. First, it is difficult to get stable footing on undulating ground. While standing here, one foot is invariably higher than the other.
This is also true for buildings and other structures placed. They, too, must be designed to get stable footing by creating level terraces for their location or by special structural systems that connect them. Surface drainage is a constant issue on a hill. Unless the trees are located on the crest of a hill, it is quite likely that some portion of a gradient will drain towards them.
Water, soil, stones, debris, and so forth all gravitate downwards over time. If possible, restrict movement in these areas to avoid the event of a catastrophe. Even people usually find it easier to walk downwards than uphill. It is necessary to grade the uphill area to divert the surface drainage around the house. Outdoor use areas can also be properly tailored by orienting them to minimize grading.
Then, the designer should attempt to match the proposed uses to slant conditions where they will fit with minimal grading. Above 25 per cent, it is too steep to safely mow. An outdoor entertaining space, on the other hand, could be placed at an angle that is between 5 and 15 percent by terracing it on different levels. Planted hills that do not exceed a 50 percent grade can serve as a transition between the elevations of the individual spaces.
A deck is simply built above a slant, allowing the existing grade underneath to remain essentially as is. There is a point where it is simply best not to force a use onto a site if it does not easily fit. This is especially so where existing trees or other forms of natural vegetation cover the position.
Some outdoor uses may not be possible here. Outdoor areas that are large in size and require a gentle ground surface may need to be eliminated from a design program. The steepest areas are often best left alone. The designer might reserve the steepest areas for vegetation on disturbed or graded lots as well. Therefore, it may also be necessary to incorporate ramps, especially in the public areas such as the approach to the front of the house.
This is necessary but becomes more difficult on steeper sites because of the potential for erosion. Valley-like excavations into the earth, which are cut to catch and direct water, should be designed so they visually fit into the topography. Trenches that look like gashes because of overly steep side slopes should be avoided. The low side on the other hand, may be wetter because of the water that drains to it. Storm water must be directed in a manner that does not compromise the integrity of spill containment berms.
Commonly, the ground has to be steeper than 3 percent to be perceived as being slanted. The steeper the site, the more pronounced these conditions are. All angled ground has an unsteady feeling to it for several reasons. First, it is difficult to get stable footing on undulating ground. While standing here, one foot is invariably higher than the other.
This is also true for buildings and other structures placed. They, too, must be designed to get stable footing by creating level terraces for their location or by special structural systems that connect them. Surface drainage is a constant issue on a hill. Unless the trees are located on the crest of a hill, it is quite likely that some portion of a gradient will drain towards them.
Water, soil, stones, debris, and so forth all gravitate downwards over time. If possible, restrict movement in these areas to avoid the event of a catastrophe. Even people usually find it easier to walk downwards than uphill. It is necessary to grade the uphill area to divert the surface drainage around the house. Outdoor use areas can also be properly tailored by orienting them to minimize grading.
Then, the designer should attempt to match the proposed uses to slant conditions where they will fit with minimal grading. Above 25 per cent, it is too steep to safely mow. An outdoor entertaining space, on the other hand, could be placed at an angle that is between 5 and 15 percent by terracing it on different levels. Planted hills that do not exceed a 50 percent grade can serve as a transition between the elevations of the individual spaces.
A deck is simply built above a slant, allowing the existing grade underneath to remain essentially as is. There is a point where it is simply best not to force a use onto a site if it does not easily fit. This is especially so where existing trees or other forms of natural vegetation cover the position.
Some outdoor uses may not be possible here. Outdoor areas that are large in size and require a gentle ground surface may need to be eliminated from a design program. The steepest areas are often best left alone. The designer might reserve the steepest areas for vegetation on disturbed or graded lots as well. Therefore, it may also be necessary to incorporate ramps, especially in the public areas such as the approach to the front of the house.
This is necessary but becomes more difficult on steeper sites because of the potential for erosion. Valley-like excavations into the earth, which are cut to catch and direct water, should be designed so they visually fit into the topography. Trenches that look like gashes because of overly steep side slopes should be avoided. The low side on the other hand, may be wetter because of the water that drains to it. Storm water must be directed in a manner that does not compromise the integrity of spill containment berms.
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