Publication Abstract

Proceedings - Fourth International Conference - Piling and Deep Foundations, 1991, Stresa, Italy, (DFI)

Study of the load bearing capacity of a pile of considerable length bored using bentonite mud
M. Bustamante & L. Gianeselli Laboratoire Central des Ponts et Chaussees, Paris, France M.Bertero & A. Paviani Design Department, Trevi SpA, Cesena, Italy

In the context of the construction of a motorway viaduct approximately 9.6 km in length, TREVI, the company contracted to lay deep foundations passing through thick layers of silty-clayey soil of softish consistency, carried out a series of load tests on bored piles of large diameter and of considerable length. With a view to establishing the distribution of stresses under the test load as well as their law of mobilization, TREVI contacted the LCPC in order to carry out the necessary extensometric measurements. These measurements were made by installing two removable LPC strain gauges chains, models 72 and 89. This article decribes in detail the equipment installed and the results obtained from a load test in which both the exceptional length of the pile and the magnitude of the loads applied were of particular interest.

 article #515; publication #37 (IC-1991-IT)