中北大学学报（自然科学版）2025，Vol.46Issue(2)：188-196,9.DOI:10.62756/jnuc.issn.1673-3193.2024.07.0019
静动荷载作用下加筋土桥台变形特性研究
Study on Deformation Characteristics of Reinforced Soil Abutment Under Static and Dynamic Loads
摘要
Abstract
Reinforced soil abutment has the advantages of low engineering cost,easy construction,green environmental protection,etc.,and can solve the problem of traditional abutment head jump,so it has been popularized and used.Using an existing reinforced soil abutment as a prototype,the effects of static load and vehicle dynamic load on the settlement and lateral displacement of reinforced soil abutment with different panel forms were analyzed by numerical simulation using FLAC3D finite difference software.The results show that with the increase of load,the abutment settlement and panel displacement increase obviously under static load,but the change of abutment settlement and panel horizontal displacement under dynamic load is not obvious.The horizontal displacement of the slab of the reinforced soil abutment under static load can be effectively reduced by setting the reinforcement filler area.At the weight of the small vehicle studied in this paper,the vehicle speed is not the main factor affecting the settlement of the abutment,and the influence of the vehicle speed on the horizontal displacement of the abutment panel is limited.The horizontal displacement of the reinforced soil abutment can be effectively reduced by install-ing concrete panels,and the geogrid flat reinforced soil abutment with concrete panels is more effective than the other two types of abutments in controlling the horizontal deformation of the abutment panels,no matter under static load or dynamic load.The research results can provide some reference for the engineer-ing design and maintenance of reinforced soil abutment.关键词
土工合成材料加筋土/静动荷载/加筋土桥台/荷载工况/变形特性Key words
geosynthetic reinforced soil/static and dynamic load/reinforced soil bridge abutment/load-ing condition/deformation characteristics分类
土木建筑引用本文复制引用
董彦莉,张浩东,赵致艺,张军,冯浩然..静动荷载作用下加筋土桥台变形特性研究[J].中北大学学报（自然科学版）,2025,46(2):188-196,9.基金项目
国家自然科学基金资助项目(52278360) （52278360）
山西省黄土地区公路建设与养护技术国家交通行业重点实验室开放基金资助项目(KLTLR-Y23-2) （KLTLR-Y23-2）
山西省自然科学基金资助项目(202403021211082) （202403021211082）
