Abstract:
The available soil and uplift load test data for the
screw pile used in the foundations of towers for East-West
Electrical Interconnector Project (Pabna region) were
analysed in order to find some relationship between soil
strength and driving torque and also between uplift load
and displacement.
Mathematical models were developed by using simplified
assumptions to correlate soil strength with driving torque
and uplift load with displacement of screw piles. The
statistical analysis of the data against these models
v
showed that a good correlation exists between driving torque
and soil strength for the screw piles of this area.
Model was also developed for the uplift load-displacement
behaviour of the screw'piles and the statistical
analysis showed that there exists a strong relationship
between the ratios of applied load/ultimate capacity and
displacement/embedment length. The relationship is loglinear
and can be used to predict the uplift displacement
of screw piles from the driving test results.
