Abstract：Research purposes: Reinforced soil retaining walls (i.e. MSE walls) are light retaining structures and are widely used in civil engineering, for example railway and highway engineering. Reinforced soil retaining wall top is often constructed to support strip footing load in fields, such as reinforced soil abutment. Although the shape of failure surface is specified in the current design code of MSE walls, the value of bearing capacity (i.e. BC) for walls under strip footing load acting on the top surface is not given. Accuracy calculation of BC of reinforced soil retaining wall under strip footing load is of great significance to effectively ensure the stability of the wall in practical engineering. Based on the failure mechanism assumed in design code and the upper bound theorem, the upper bound solution of the BC of MSE wall is obtained. Research conclusions: (1)The results of the proposed method are in good agreement with those from model tests, and it shows good accuracy.(2)The value of BC decreases nonlinearly with the increase of footing width. (3)When the strip footing is far away from the wall facing, the value of BC is relatively greater. (4)Reinforcement length has little effect on BC if it is greater than 0.7 times of wall height.(5)When the vertical arrangement of reinforcement layer is tighter, the influence of reinforcement strength on BC is more significant.(6)The relationship between backfill strength and BC is approximately linear. (7)The research results are helpful to the design and application of reinforced soil retaining walls.
杨广庆, 吕鹏, 庞巍, 等. 返包式土工格栅加筋土高挡墙现场试验研究[J]. 岩土力学, 2008(2):517-522.Yang Guangqing, Lv Peng, Pang Wei, etc. Research on Geogrid Reinforced Soil Retaining Wall with Wrapped Face by In-Situ Tests[J]. Rock and Soil Mechanics, 2008(2):517- 522.
[2]
徐鹏, 李婷, 杨广庆. 考虑渗流影响的基坑临近地基承载力 FELA 分析[J]. 铁道工程学报, 2021(5):19-24.Xu Peng, Li Ting, Yang Guangqing. Finite Element Limit Analysis of Bearing Capacity of Strip Footing nearFoundation Pit Subjected to Seepage[J]. Journal of Railway Engineering Society, 2021(5):19-24.
[3]
李婷, 苏谦, 刘宝, 等. 加筋土挡墙水平位移解析计算与参数分析[J]. 中国公路学报, 2019(5):47-56.Li Ting, Su Qian, Liu Bao, etc. Analytical Calculation and Parametric Analysis of Lateral Displacement of Reinforced Soil Retaining Walls [J]. China Journal of Highway and Transport, 2019(5):47-56.
[4]
李丽华,石安宁,肖衡林,等. 加筋土挡墙静载模型试验及其力学性能研究[J]. 岩土力学,2018(12):4360-4368.Li Lihua, Shi Anning, Xiao Henglin, etc. Model Test and Mechanical Properties Study of Reinforced Earth Retaining Wall[J]. Rock and Soil Mechanics, 2018(12):4360-4368.
[5]
王家全, 张亮亮, 赖毅, 等. 加筋土挡墙静动力学特性大模型试验研究[J]. 岩土力学, 2019(2):497-505.Wang Jiaquan, Zhang Liangliang, Lai Yi, etc. Large-Scale Model Tests on Static and Dynamic Mechanical Characteristics of Reinforced Earth Retaining Wall [J]. Rock and Soil Mechanics, 2019(2):497-505.
[6]
徐鹏. 高烈度地震下刚性面板加筋土挡墙的动态响应研究[D]. 成都:西南交通大学, 2020.Xu Peng. Study on Seismic Response of Reinforced Soil Retaining Walls with Rigid Facing under High-Intensity Earthquake[D]:Chengdu:Southwest Jiaotong University, 2020.
[7]
Rahmaninezhad S M, Han J. Lateral Facing Deflections of Geosynthetic-Reinforced Retaining Walls under Footing Loading[J]. Transportation Geotechnics, 2021(30):1-10.
[8]
Fox P J. Analytical Solutions for General Two-Wedge Stability[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2021(8):1-12.
[9]
Sawicki A, Lesniewska D. Limit Analysis of Cohesive Slopes Reinforced with Geotextiles[J]. Computers and Geotechnics, 1989(1):53-66.
2023, Vol. 40 
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