土工网处理桥头差异沉降的有限元分析

本文对土工网处理桥头差异沉降进行了有限元分析，并通过实体工程的长期观测结果验证了计算结果的合理性。有限元计算结果与实测结果均表明，土工网对减缓桥头差异沉降有明显效果。本文还分析了土工网布置形式，土工网与桥台的搭接形式以及参数的变化对台背填土沉降的影响，为工程设计提供了理论依据。

Finite Element Analysis of Alleviating Bridge Approach Settlement with Geonet

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 analysed. Theoretical background is then provided for engineering design.