ABSTRACT
Depending on the stiffness of subsurface soil and groundwater conditions, pile foundations can be constructed using a variety of construction techniques. The most common techniques are (1) driving (Figure 9.1), (2) in situ casting and preaugering (Figure 9.2), and (3) jetting (Figure 9.3). Because of the extensive nature of the subsurface mass that it
9.11.2 Shaft Integrity Test ................................................................................................ 471 9.11.3 Shaft Inspection Device ........................................................................................ 471 9.11.4 Crosshole Sonic Logging ...................................................................................... 472 9.11.5 Postgrout Test ......................................................................................................... 473 9.11.6 Impulse Response Method ................................................................................... 474 9.11.7 Thermal Integrity Profiling .................................................................................. 475
9.12 Methods of Repairing Pile Foundations ......................................................................... 479 9.12.1 Pile Jacket Repairs .................................................................................................. 479
9.13 Use of Piles in Foundation Stabilization ........................................................................ 481 9.13.1 Underpinning of Foundations ............................................................................. 481 9.13.2 Shoring of Foundations ......................................................................................... 482
9.14 Additional Examples .........................................................................................................484 References .....................................................................................................................................488 Websites ........................................................................................................................................ 490
influences, the degree of uncertainty regarding the actual working capacity of a pile foundation is generally much higher than that of a shallow footing. Hence, geotechnical engineers constantly seek more and more effective techniques of monitoring pile construction to estimate as accurately as possible, the ultimate field capacity of piles.
