Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Behaviour of screw micropiles subjected to axial tensile and compressive loading
Screw micropiles or “ground screws” (diameter less than 200 mm, length less than 5 m) consist of a steel tubular shaft with continuous spiral threads, and a threaded tapered segment; the installation is achieved by rotary driving. Although ground screws are useful in many applications as well as environment-friendly, research on their behaviour is limited. The paper presents an experimental study on the response of screw micropiles subjected to tensile and compressive axial loading. Twenty full-scale load tests were conducted on four types of screws, with diameter 66-114 mm and length 0.8-1.6 m, at a test site in Italy, characterized by the presence of predominantly clayey soils. The micropiles achieved tensile and compressive capacities of 23-60 kN and 20-75 kN respectively, with pile movements in the range 1-9 mm. The results were interpreted in the light of a recently developed method to compute bearing capacity of screw micropiles.
Behaviour of screw micropiles subjected to axial tensile and compressive loading
Screw micropiles or “ground screws” (diameter less than 200 mm, length less than 5 m) consist of a steel tubular shaft with continuous spiral threads, and a threaded tapered segment; the installation is achieved by rotary driving. Although ground screws are useful in many applications as well as environment-friendly, research on their behaviour is limited. The paper presents an experimental study on the response of screw micropiles subjected to tensile and compressive axial loading. Twenty full-scale load tests were conducted on four types of screws, with diameter 66-114 mm and length 0.8-1.6 m, at a test site in Italy, characterized by the presence of predominantly clayey soils. The micropiles achieved tensile and compressive capacities of 23-60 kN and 20-75 kN respectively, with pile movements in the range 1-9 mm. The results were interpreted in the light of a recently developed method to compute bearing capacity of screw micropiles.
Behaviour of screw micropiles subjected to axial tensile and compressive loading
Sanzeni, Alex (Autor:in) / Danesi, Emanuele Giuseppe (Autor:in)
International Journal of Geotechnical Engineering ; 16 ; 450-461
21.04.2022
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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