Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cone penetration resistance of calcareous sand
Abstract Calcareous sands form the foundation soils/structural fill for most of the engineering works in Kuwait, the Arabian Gulf countries and also act as structural fill. In situ calcareous sands are stronger than uncemented sand but lose much of their strength when re-worked or on wetting. The paper reports Dutch cone penetrometer tests on Jahra sand and Gatch under dry, wet and saturated conditions, using a specially designed sample box. The results showed that the penetration resistance (both tip and friction) of the uncemented sand increases upon wetting to an optimum with about a 70% increase from the dry, then decreases down to only 21% of the dry. With the calcareous sand, wetting was found to reduce the resistance in a directly proportional relationship, with a loss of resistance of 20% recorded at 7% water content and an 87% reduction when soaked. The friction ratio increased with increasing moisture content in uncemented sand but reduced to 50% in calcareous sands.
Cone penetration resistance of calcareous sand
Abstract Calcareous sands form the foundation soils/structural fill for most of the engineering works in Kuwait, the Arabian Gulf countries and also act as structural fill. In situ calcareous sands are stronger than uncemented sand but lose much of their strength when re-worked or on wetting. The paper reports Dutch cone penetrometer tests on Jahra sand and Gatch under dry, wet and saturated conditions, using a specially designed sample box. The results showed that the penetration resistance (both tip and friction) of the uncemented sand increases upon wetting to an optimum with about a 70% increase from the dry, then decreases down to only 21% of the dry. With the calcareous sand, wetting was found to reduce the resistance in a directly proportional relationship, with a loss of resistance of 20% recorded at 7% water content and an 87% reduction when soaked. The friction ratio increased with increasing moisture content in uncemented sand but reduced to 50% in calcareous sands.
Cone penetration resistance of calcareous sand
Shaqour, Fathi M. (Autor:in)
2006
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
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