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Swimming Pools |
Signing the Contract with the Builder
Guide to Swimming Pool Construction
Swimming Pool Site Preparation and Excavation
Swimming Pool on Problem Soils
Swimming Pool Special Soil Conditions
Swimming Pool on Fill and Rock
How a Contractor Build a Swimming Pool
Swimming Pool Finishes and Trims
Swimming Pool Accessories
Fill and RockSwimming Pool on FillA meter of fill on the top layer of an excavation, or perhaps a thin layer deeper in the hole, is not a problem. But if the entire excavation is loose fill. The swimming pool will not have a footing in solid earth and will float in the fill. When the fill, compressed by the pool's weight, settles, the pool settles with it. If the settling is uniform, the pool pulls away from the bond beam and crack crosswise at approximately the 1.5 meter depth mark.To give the swimming pool a solid footing in deep fill, the contractor can use caisson construction, building the pool shell on piers or pilings sunk into solid ground. The piers are made of concrete and reinforcing steel rods. The rods extend into the pool shell and are fastened to the reinforcing steel in the shell. Even though the fill may compact and leave space under the shell, the integrated construction of the piers and the pool shell prevents any damage or movement. A Swimming Pool on RockNormal granite-like rock requires expensive excavation but makes a fine bed for a swimming pool. Holes are drilled in the rock for explosive charges. After the explosion, the shattered rock is removed from the excavation.Slate, shale, and gravel, on the other hand, tend to move and slide when wet and can impose great forces on the pool. To eliminate these forces, you'll need extra retaining walls and perhaps a back-filling of solid earth. |
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