The load test program for the Audubon Bridge project provides a comparison of the performance of base grouted and ungrouted shafts on large diameter foundations in sand. Comparison of several field load tests at the two pylon foundations indicate that the ...

Lateral load tests were performed on a full-scale pile cap in clay before and after construction of shallow soilcrete walls produced by soil mixing and jet grouting on either side of the pile cap. This relatively simple approach increased the lateral resistance ...

Unload-reload cycles induce additional non-uniform internal axial loads within the pile which complicate interpretation of the strain gage data and increase the potential for errors. Attempts to maintain a constant top load during the hold period can lead ...

Record load test on piles.

This paper provides a review of recent instrumented load tests performed in these cemented calcareous materials. A total of 15 tests were selected from southeastern states based on the availability of good quality load test data and geotechnical information. ...

The responses of the individual base and side components of O-cell load tests on drilled shaft foundations can be evaluated within an elastic continuum framework using results from seismic piezocone tests (SCPTu). The SCPTu is an optimal means for collection ...

This paper describes a method of conducting rapid lateral loading tests of deep foundations in which the load is applied to the foundation with a time duration of less than one second. For purposes of this paper the loading is applied using a pyrotechnic loading ...

A case history is presented of a project where load test data obtained from an O-cell load test was used to value engineer the drilled shaft foundations for the project. The results of the load test allowed for the shaft diameters to be reduced and the augercast ...

The use of micropiles has grown significantly since their conception in the 1950s, and in particular since the mid-1980s. Micropiles have been used mainly as foundation support elements to resist static and seismic loads, and to a lesser extent, as in-situ ...

This paper pursues the concept of quality with respect to construction of drilled shaft foundations. This paper describes some aspects of construction techniques and materials which can lead to defects or less than optimal performance for drilled shaft foundations. ...