In this study, finite element program is developed to examine the effects of alleviating bridge approach differential settlement by emplacing geonet in the backfill behind bridge abutment. Calculation results agrees resonably with in situ measurement, and indicate geonet is an effective method to alleviate bridge approach settlement. The effects of some factors on the settlement of backfill behind abutment, such as arrange form of geonet in backfill, join form between geonet and abutment, and the variation of paraments, are also ana...
