EI 02C097
01 Jul 97
Figure 6-1. Schematic of wave equation model
may lead to an overestimate of the bearing capacity. Significant error
may lose strength during driving which can cause remolding and
in estimating ahmmer efficiency is also possible for driving batter
increasing pore water pressure. Densification of sands during driving
piles. A bracket analysis is recommended for diesel hammers with
contribute to a buildup of pore pressure. Strength regain is increased
variable strokes. Results of the PDA and ststic with variable
with time, after the soil freeze or setup. Coral sands may have
strokes. Results of the PDA and static load tests described below and
exceptionally low penetration resistance during driving, but a
proper inspection can be used to make sure that design parameters
reduction in pore pressure after driving and cementation that
are realistic and that the driven piles will have adequate capacity.
increases with time over a period of several weeks to months can
contribute substantially to pile capacity. Significant cementation
(b) Results of wave equation analysis may not be applicable if
may not occur in several weeks.
soil freeze (setup) occurs. Saturated sensitive clays and loose sands
6-3
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