Application of Fibre Bragg Grating in monitoring soil-pile interaction for battered mini driven pile groups

Abstract

Improved design of vertically loaded battered pile groups can benefit various geotechnical applications, such as slope stabilisation, earth retention and bridge abutments. Current design methods rely on model pile load tests, while full-scale field tests and numerical modelling based on field results are limited. Questions still exist whether these design methods are accurate enough in predicting the load capacity and settlement behavior of battered piles. To investigate this problem, a steel footing system, termed as a battered mini driven pile group system has been tested. The system comprises of a steel pile cap with varying number of open-ended steel mini piles installed in a battered co..