Key Techniques for Constructing Flexible Geosynthetic Reinforced Soil Abutments

Authors

YU Xiaoxiao, College of Civil Engineering , Tongji University , Shanghai 200092 , ChinaFollow
XU Chao, College of Civil Engineering , Tongji University , Shanghai 200092 , China
LI Haoyu, Anhui Transport Consulting & Design Institute Co ., Ltd., Hefei , Anhui 230088 , China
ZUO Binli, College of Civil Engineering , Tongji University , Shanghai 200092 , China

Abstract

The flexible geosynthetic reinforced soil (GRS ) abutments offer several advantages,including cost saving,reduced bridgehead misalignment,and good seismic performance,showing great potential for application in transportation engineering both in China and abroad.The flexible GRS abutment is essentially composed of a composite structure formed by closely spaced layers of geosynthetic reinforcement material,and the construction quality and load-bearing capacity are crucial to the success of the project.To ensure construction quality and study the construction process of flexible GRS abutments,a construction site monitoring method was adopted.Based on the experience from the construction of a vehicular overpass on the Wuwei ‒ Yuexi Expressway,the quality control measures for flexible GRS abutment construction were discussed,and key techniques such as reinforced material placement,compaction of fill materials,and stacking of facing panel blocks were described.The results show that the on-site bridge erection status is stable,proving good overall construction quality.Additionally,it is found that appropriate tensioning and fixing of the reinforcement material is beneficial to its performance.The selection of an appropriate compaction method based on site conditions can strike a balance between efficiency and quality,while the external retaining structure ensures the verticality of the wall.

Publication Date

2-22-2025

DOI

10.14048/j.issn.1671-2579.2025.01.018

First Page

153

Last Page

158

Submission Date

March 2025

Recommended Citation

Xiaoxiao, YU; Chao, XU; Haoyu, LI; and Binli, ZUO (2025) "Key Techniques for Constructing Flexible Geosynthetic Reinforced Soil Abutments," Journal of China & Foreign Highway: Vol. 45: Iss. 1, Article 18.
DOI: 10.14048/j.issn.1671-2579.2025.01.018
Available at: https://zwgl1980.csust.edu.cn/journal/vol45/iss1/18

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