FIELD MONITORING FOR SILENCE PILING CONSTRUCTION IN DEEP SOFT SOIL FOUNDATION
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Published:2004
Xin-Yu Xie, Kai-Fu Liu, Ph D, Xiang-Rong Zhu, 2004. "FIELD MONITORING FOR SILENCE PILING CONSTRUCTION IN DEEP SOFT SOIL FOUNDATION", Advances in geotechnical engineering: The Skempton conference: Proceedings of a three day conference on advances in geotechnical engineering, organised by the Institution of Civil Engineers and held at the Royal Geographical Society, London, UK, on 29–31 March 2004
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The silence piling process minimises noise and vibration by jacking segmental precast concrete piles into the ground. However in soft clay sites, where piles are closely spaced, significant ground movements can develop during the piling operations. These movements can affect surrounding buildings and services. This paper summarises the monitoring data from two projects in China where inclinometer deflections, heave movements and induced excess pore pressures have been recorded adjacent to the site boundary during piling operations.
The measures taken to reduce the ground movements are also described. These included the excavation of perimeter ditches and boring 0.5m diameter holes with sand backfill. These holes where used to encourage ground squeezing and ground loss into the holes. The sand fill also encouraged consolidation of the excess pore pressures in the soft clay.
INTRODUCTION
SITE CONDITIONS AND FIELD TESTING PROCEDURES
MEASURES AGAINST THE INFLUENCE OF PILE DRIVING
DEFORMATION AND PORE PRESSURES DUE TO PILE DRIVING
SUMMARY AND CONCLUSIONS
REFERENCES
