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Saucer-shaped tanks "invade" landslide-prone area in Wales
Special tanks designed for slide areas have small, stiff foundations on hillside site; concrete tanks are part of water supply improvement program in Rhondda Fach valley near Porth in Glamorgan, England; unusual shape of water tanks was dictated by presence of current and anticipated mining subsidence below hillside sites; by using inverted cone design, foundations could be made small and stiff in order to cope with bending moments and tensile forces set up during subsidence; each tank has form of inverted truncated cone with maximum diameter of 96 ft and walls sloping at angle of 45°; concrete for tank walls has specified minimum cube strength of 6000 psi at 28 days.
Saucer-shaped tanks "invade" landslide-prone area in Wales
Special tanks designed for slide areas have small, stiff foundations on hillside site; concrete tanks are part of water supply improvement program in Rhondda Fach valley near Porth in Glamorgan, England; unusual shape of water tanks was dictated by presence of current and anticipated mining subsidence below hillside sites; by using inverted cone design, foundations could be made small and stiff in order to cope with bending moments and tensile forces set up during subsidence; each tank has form of inverted truncated cone with maximum diameter of 96 ft and walls sloping at angle of 45°; concrete for tank walls has specified minimum cube strength of 6000 psi at 28 days.
Saucer-shaped tanks "invade" landslide-prone area in Wales
World Construction
World Construction ; 21
1968
2 pages
Article (Journal)
English
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