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Field tests and interpretation of screw micropiles subjected to axial loading in cohesive soil
Screw micropiles consist of a steel shaft with continuous threads and a threaded tapered tip; the shaft diameter is generally 66–140 mm and the length is 1.0–3.0 m. Screw micropiles are installed by rotary driving, without drilling and grouting, and can be employed in the construction of light structures, houses, photovoltaic power plants, road and railway barriers etc. The literature on this type of foundation is limited and the present paper reports additional findings derived from an ongoing research on screw micropiles subjected to axial loading. In a test field in Italy, 22 new tests were conducted on three models of micropiles with different diameters, lengths and taper angles; tests were conducted with two different procedures. The results confirmed the possibility of computing the ultimate capacity of screw micropiles with appropriate analytical methods, highlighting the influence of the taper angle and the effect of the testing procedure on the observed response.
Field tests and interpretation of screw micropiles subjected to axial loading in cohesive soil
Screw micropiles consist of a steel shaft with continuous threads and a threaded tapered tip; the shaft diameter is generally 66–140 mm and the length is 1.0–3.0 m. Screw micropiles are installed by rotary driving, without drilling and grouting, and can be employed in the construction of light structures, houses, photovoltaic power plants, road and railway barriers etc. The literature on this type of foundation is limited and the present paper reports additional findings derived from an ongoing research on screw micropiles subjected to axial loading. In a test field in Italy, 22 new tests were conducted on three models of micropiles with different diameters, lengths and taper angles; tests were conducted with two different procedures. The results confirmed the possibility of computing the ultimate capacity of screw micropiles with appropriate analytical methods, highlighting the influence of the taper angle and the effect of the testing procedure on the observed response.
Field tests and interpretation of screw micropiles subjected to axial loading in cohesive soil
Sanzeni, Alex (author) / Danesi, Emanuele Giuseppe (author)
International Journal of Geotechnical Engineering ; 16 ; 391-399
2022-04-21
9 pages
Article (Journal)
Electronic Resource
Unknown
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