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Download technical papers by Coffey Geotechnics people on piles.
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By H. G. Poulos
This paper explores some of the “side effects” of investigation and construction processes, and their possible effects on existing deep foundations. The processes considered will include:
- the driving of piles
- the installation of piles by jacking
- drilling holes in stressed ground for the purposes of investigation or construction
- carrying out shallow excavations, for example, for pile cap construction or the installation of services
- carrying out deeper excavations, for example, for a development on a site adjacent to the existing pile foundation.
By Lani Cheenikal, Harry Poulos, Robert Whiteley
Geophysical testing has increasingly been used for geotechnical investigations to identify subsurface irregularities such as fill, cavities and variable strata. It can also be used to obtain quantitative information that is useful for foundation assessment and design. This paper describes the use of SUBS© (Site Uniformity Borehole Seismic) geophysical testing for the geotechnical investigation and foundation design of St Falls development in Falls Creek Alpine Resort, VIC, Australia.
By Harry G. Poulos
This paper identifies some of the causes of imperfections in real pile foundations and then examines their possible effects on pile behaviours. The imperfections considered arise from two main sources, natural imperfections caused by the geological circumstances and imperfections related to the construction of the piles. In each case single piles are considered first and then pile groups are addressed separately.
By H. G. Poulos
This paper reviews the evolution of settlement analysis for pile groups, and the transition from research to practice over the past 30 to 40 years. The gradual
incorporation of important aspects of reality is reviewed and it is shown that recent research has enabled complex practical problems to now be examined in a systematic, albeit approximate, manner.
