The seismic performance of port structures has been well documented following
recent earthquakes, and indicates that port structures are highly susceptible to earthquake-induced
damages. These damages are primarily due to soil liquefaction and the associated
ground failures. Sheet pile bulkheads provide vital intermodal and lifeline transportation
links between water-side and...
Fast ice flow and unstable ice sheet behavior were characteristic features of the Lake Michigan Lobe of the southern Laurentide Ice Sheet. Such behavior may result from some combination of subglacial-sediment deformation and decoupled sliding at the ice-bed interface. Both mechanisms depend on high water pressure relative to ice pressure....
Predetermining the ultimate capacity of piles driven into purely
cohesive soils and purely cohesionless soils involves, respectively,
the consideration of soil shear strength in a completely undrained and
a completely drained condition. For the intermediate cases concerning
soils that possess both cohesion and internal friction (silts, clayey
silts, sandy clays,...
This paper presents a method of predicting penetration
resistance for driven piles, using known driving records for driving
the same type piling in similar subsurface conditions. As known
driving records are not always available to the analyst, a method was
also investigated using soil data only. The analytical tools employed...
The structural behavior of pile groups (dolphins) is analyzed
considering two types of boundary conditions. First the individual
piles of the group are assumed to be rigidly embedded in the soil. In
the second analysis the more realistic case is considered where the
soil foundation is allowed to yield. The...
Augered cast-in-place piles, also known as ACIP piles, have been used for more than
seven decades in the United States and have gained in popularity due to their relatively
quick installation and cost-effectiveness. Owing to the reduced impact on the neighboring
environment as compared to some other deep foundation installation...
Pile caps are structural elements used to transmit loads from structural columns into pile groups. A pile cap is generally constructed of reinforced concrete and contains only minimal flexural reinforcing steel. Using modern design methods, the anchorage of the flexural steel may limit the design capacity of existing pile caps....