UFC 3-220-01N
15 AUGUST 2005
types of dynamic loading, and different parameters are required. Such properties as
moduli, damping ability, and velocity of propagation vary significantly with such factors
as dynamic stress, strain, frequency, temperature, and soil type and condition. UFC 3-
130-01 discusses these properties for frozen ground.
11-4.5
Design Criteria for Various Specific Engineering Features. In addition
to the basic considerations outlined in the preceding paragraphs of this chapter, the
design of foundations for frost and permafrost conditions requires application of detailed
criteria for specific engineering situations. Guidance for the design of various specific
features, construction consideration, and monitoring of performance of foundation is
presented in UFC 3-130-01.
Figure 11-5 Heave Force Test
(Average tangential Adfreeze bond stress versus time, and timber and steel pipe piles with silt-water
slurry in dry excavated holes. Piles were installed within annual frost zone only, over permafrost, to
depths from ground surface of 1.1 to 2 meters (3.6 to 6.5 feet).)
11-16
Previous Page
