Shaft capacity of drilled and grouted piles in calcareous sandstone

Research output: Chapter in Book/Conference paperChapterpeer-review


The paper addresses the significant shortage of full scale load test data for drilled and grouted (D&G) piles in weak calcareous rocks by presenting results from an instrumented pile test programme that involved tension testing of 240 mm, 340 mm and 450 mm diameter D&G piles at a calcareous sandstone site north of Perth, Australia. It is shown that the capacities predicted using a variety of approaches employed by local practitioners are often significantly larger than measured static capacities, and that these approaches themselves yield a wide range of capacities. The testing programme highlighted the considerable uncertainties associated with the prediction of both static and cyclic pile response in variable soft rock deposits such as the Tamala Limestone.

Original languageEnglish
Title of host publicationFrontiers in Offshore Geotechnics II
PublisherCRC Press
Number of pages6
ISBN (Electronic)9780203830079
ISBN (Print)9780415584807
Publication statusPublished - 4 Oct 2010


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