Field tests on large-scale instrumented piles driven in chalk: results and interpretation

نویسندگان

چکیده

The design of large open steel piles driven at chalk sites suffers from considerable uncertainty, leading to major difficulties in many significant onshore and offshore projects. This paper describes recent instrumented driving, monotonic testing failure, restrike tests conducted on primarily low- medium-density a site North-western France. experiments are described interpreted with reference high-quality characterisation, dynamic static methods test analysis, alternative predictive approaches. Important new conclusions flow regarding driving behaviour, the set-up that took place over up 65 days after installation resistances available under compression tension loading. Surprisingly differences shown between shaft capacity, which postulated be due Poisson straining pile its interaction surrounding mass. field contribute building dataset allows proposed axial capacity tested potentially refined provide reliable representative tools.

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ژورنال

عنوان ژورنال: Canadian Geotechnical Journal

سال: 2023

ISSN: ['1208-6010', '0008-3674']

DOI: https://doi.org/10.1139/cgj-2022-0441