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Estudo da compactação do solo por meio de ensaios geotécnicos e de métodos geofísicos
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 9th International Congress of the Brazilian Geophysical Society, Sep 2005, cp-160-00016
Abstract
The main objective of this work is to investigate the effect<br>of sand-gravel compaction piles on the behavior of loose<br>sand deposits. Reduced model tests were carried out on<br>an artificial sand deposit filling a trench 1.5 m wide, 3.0 m<br>long and 2.5 m deep, excavated in a clay rich soil. In situ<br>geotechnical tests and DC electrical resistivity<br>measurements were carried out before and after the<br>construction of compaction piles, in order to characterize<br>the changes in the sand deposit. Conductivity anomalies<br>were observed in the position of the compaction piles with<br>better performance. These anomalies are caused by the<br>introduction of the sand-gravel compaction piles and<br>possibly more related to the mineralogical composition of<br>these piles than compaction itself.