Open AccessShaft friction from the DMT and direct shear interface tests
Author(s) -
Kamila Mikina,
Jakub Konkol,
Lech Bałachowski
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/727/1/012002
Subject(s) - dilatometer , modulus , materials science , pile , shear (geology) , shear modulus , geotechnical engineering , direct shear test , tension (geology) , structural engineering , mechanics , composite material , engineering , physics , ultimate tensile strength , thermal expansion
The article presents preliminary attempt to create tri-linear transfer curves for describing pile behaviour under axial loading. Transfer curves would use the parameter measured in dilatometer test, particularly a constrained modulus M DMT . The proposed method is based on concrete rough and smooth interface tests performed in a direct shear apparatus. Based on the obtained mobilization curves, relationships were created between the parameters describing the slope of individual transfer curves and the M DMT modulus. The obtained correlations were used to estimate the capacity of the concrete screw pile subjected to the static load test in tension.