Table 7. Summary of geotechnical model...

Table 7.

Summary of geotechnical model and associated design parameters for the upper pile

Reduced level (RL, m AHD)		Materials	Estimated UCS* or s_u: MPa	Estimated f_s^#: kPa	Adopted f_s^#: kPa	Estimated E_v^##: MPa
−0.60^{^^}	−28.00	Estuarine deposits – Clayey SILT/CLAY/sandy CLAY/SAND (very soft to soft/loose)	—	—	—	—
−28.00	−37.70	Sandy GRAVEL with cobbles with sections of core losses (medium dense to very dense with localised loose)	—	150	100	38.3
−37.70	−43.62^{^}	Extremely weathered, BRECCIA – clay like with sections of core losses (stiff to very stiff to hard and localised medium strength)	0.16**	95	47	28.5
−43.62	−45.50	Extremely weathered, BRECCIA – clay like with sections of core losses (stiff to very stiff to hard and localised medium strength)	0.16**	95	70	28.5
−45.50	−57.82	CLAY with sections of core losses and localised highly weathered, SANDSTONE (very stiff to hard and localised stiff and medium strength)	0.27**	132	100	45.8
−57.82	−60.70	Highly weathered, SANDSTONE (very low to low strength)	0.87	280	220	84.8
−60.70	−64.60	Extremely weathered to highly weathered, SANDSTONE (very low to low strength)	0.85	277	220	82.0
−64.60	−67.60	Highly weathered, SANDSTONE (very low to low strength)	0.82	272	220	81.6
−67.60	−72.50	Highly weathered, SANDSTONE (very low to low strength)	0.94	291	230	88.0
−72.50	−75.60	Extremely weathered/highly weathered, SANDSTONE (very low to low, to medium strength)	1.21	330	240	88.8
−75.60	−78.55	Highly weathered, SANDSTONE (very low to low strength)	0.97	295	240	93.6
−78.55	−78.96	Highly weathered, SANDSTONE/extremely weathered, SANDSTONE/soil Like (very low to low strength)	0.78	265	200	80.0

Reduced level (RL, m AHD)		Materials	Estimated UCS* or s_u: MPa	Estimated f_s^#: kPa	Adopted f_s^#: kPa	Estimated E_v^##: MPa
−0.60^{^^}	−28.00	Estuarine deposits – Clayey SILT/CLAY/sandy CLAY/SAND (very soft to soft/loose)	—	—	—	—
−28.00	−37.70	Sandy GRAVEL with cobbles with sections of core losses (medium dense to very dense with localised loose)	—	150	100	38.3
−37.70	−43.62^{^}	Extremely weathered, BRECCIA – clay like with sections of core losses (stiff to very stiff to hard and localised medium strength)	0.16**	95	47	28.5
−43.62	−45.50	Extremely weathered, BRECCIA – clay like with sections of core losses (stiff to very stiff to hard and localised medium strength)	0.16**	95	70	28.5
−45.50	−57.82	CLAY with sections of core losses and localised highly weathered, SANDSTONE (very stiff to hard and localised stiff and medium strength)	0.27**	132	100	45.8
−57.82	−60.70	Highly weathered, SANDSTONE (very low to low strength)	0.87	280	220	84.8
−60.70	−64.60	Extremely weathered to highly weathered, SANDSTONE (very low to low strength)	0.85	277	220	82.0
−64.60	−67.60	Highly weathered, SANDSTONE (very low to low strength)	0.82	272	220	81.6
−67.60	−72.50	Highly weathered, SANDSTONE (very low to low strength)	0.94	291	230	88.0
−72.50	−75.60	Extremely weathered/highly weathered, SANDSTONE (very low to low, to medium strength)	1.21	330	240	88.8
−75.60	−78.55	Highly weathered, SANDSTONE (very low to low strength)	0.97	295	240	93.6
−78.55	−78.96	Highly weathered, SANDSTONE/extremely weathered, SANDSTONE/soil Like (very low to low strength)	0.78	265	200	80.0

Notes:

*UCS = unconfined compressive strength for rocks; **undrained shear strength value of s_u for fine grained materials; #shaft skin friction; ##vertical Young’s modulus; ^steel case toe level; ^^the existing seabed level

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