Differences in Performance and Evaluation Methods Between Geosynthetic Reinforced Soil Structure and Mechanically Stabilized Earth Structure

XU Chao; LUO Min-min

doi:10.11988/ckyyb.20180905

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Journal of Changjiang River Scientific Research Institute ›› 2019, Vol. 36 ›› Issue (3) : 1-7. DOI: 10.11988/ckyyb.20180905

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Differences in Performance and Evaluation Methods Between Geosynthetic Reinforced Soil Structure and Mechanically Stabilized Earth Structure

XU Chao, LUO Min-min

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Abstract

GRS (Geosynthetic Reinforced Soil) Structures differ from MSE (Mechanically Stabilized Earth) structures in terms of force mechanism and structural performance. GRS structures are featured with smaller reinforcement spacing and higher compactness degree. The reinforcement spacing of GRS structure usually does not exceed 30 cm and the compactness degree is over 95%, while MSE structure which is commonly used in engineering is characterized by large reinforcement spacing. Through model tests, the behaviors of GRS and MSE structures are investigated and compared in aspects of vertical settlement, lateral displacement, and reinforcement strain. Test results reveal that GRS structures suffer from smaller lateral displacement and smaller yet more evenly-distributed strain of reinforcement than MSE structures, which further verifies the evident difference in structural performance between the two structures. In addition, theoretical analysis is also carried out in this study and theoretical calculation results are compared with some of the test results. The comparison demonstrates that current evaluation methods for MSE structures do not suit for GRS structures. In conclusion, such structural differences should be fully considered in engineering design.

Key words

reinforced soil / Geosynthetic Reinforced Soil (GRS) structure / Mechanically Stabilized Earth (MSE) structure / model test / differences in performance / evaluation methods

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XU Chao, LUO Min-min. Differences in Performance and Evaluation Methods Between Geosynthetic Reinforced Soil Structure and Mechanically Stabilized Earth Structure[J]. Journal of Changjiang River Scientific Research Institute. 2019, 36(3): 1-7 https://doi.org/10.11988/ckyyb.20180905

References

[1] ADAMS M T, SCHLATTER W, STABILE T. Geosynthetic Reinforced Soil Integrated Abutments at the Bowman Road Bridge in Defiance County, Ohio[C]∥American Society of Civil Engineers, Geo-Denver 2007, Denver, Colorado, United States, February 18-21, 2007: 16-26.
[2] ARDAH A, ABU-FARSAKH M, VOYIADJIS G. Numerical Evaluation of the Performance of a Geosynthetic Reinforced Soil-Integrated Bridge System(GRS-IBS) under Different Loading Conditions[J]. Geotextiles & Geomembranes, 2017, 45(6): 558-569.
[3] ZHENG Y, FOX P J. Numerical Investigation of Geosynthetic-Reinforced Soil Bridge Abutments under Static Loading[J]. Journal of Geotechnical & Geoenvironmental Engineering, 2016, 142(5):273-280.
[4] SAGHEBFAR M, ABU-FARSAKH M, ARDAH A, et al. Performance Monitoring of Geosynthetic Reinforced Soil Integrated Bridge System(GRS-IBS) in Louisiana[J]. Geotextiles & Geomembranes, 2017, 45(2):34-47.
[5] 包承纲,丁金华,汪明元.极限平衡理论在加筋土结构设计中应用的评述[J].长江科学院院报,2014,31(3):1-10.
[6] SAGHEBFAR M, ABU-FARSAKH M, ARDAH A, et al. Full-scale Testing of Geosynthetic Reinforced Soil-integrated Bridge System[J]. Transportation Research Record: Journal of the Transportation Research Board, 2017, 2656:40-52.
[7] 周世良.格栅加筋土挡墙结构特性及破坏机理研究[D]. 重庆:重庆大学,2005.
[8] ADAMS M T, NICKS J, STABILE T, et al. Geosynthetic Reinforced Soil Integrated Bridge System Interim Implementation Guide[R]. Springfield: U. S. Department of Commerce National Information Service, 2012.
[9] ADAMS M T, KETCHART K, WU J T H. Mini Pier Experiments: Geosynthetic Reinforcement Spacing and Strength as Related to Performance[C]∥American Society of Civil Engineers, Geo-Denver 2007, Denver, Colorado, United States, February 18-21, 2007:1-9.
[10]WU J T H, KETCHART K, ADAMS M. Two Full-scale Loading Experiments of Geosynthetic-reinforced Soil Abutment Wall[J]. International Journal of Geotechnical Engineering, 2013, 2(4):305-317.
[11]NICKS J E, ADAMS M T, OOI P S K, et al. Geosynthetic Reinforced Soil Performance Testing—Axial Loading Deformation Relationship[R]. Springfield: U. S. Department of Commerce National Information Service, 2013.
[12]WU J T H, PHAM T Q, ADAMS M T. Composite Behavior of Geosynthetic Reinforced Soil Mass[R]. Springfield: U. S. Department of Commerce National Information Service, 2013.
[13]ADAMS M, NICKS J, STABILE T, et al. Geosynthetic Reinforced Soil Integrated Bridge System synthesis report[R]. Springfield: U. S. Department of Commerce National Information Service, 2011.
[14]BUENO B S, BENJAMIM C V S, ZORNBERG J G. Field Performance of a Full-scale Retaining Wall Reinforced with Nonwoven Geotextiles[C]∥American Society of Civil Engineers, Geo-Frontiers Congress 2005, Austin, Texas, United States, January 24-26, 2005 :1-9.
[15]BENJAMIM C V S, BUENO B S, ZORNBERG J G. Field Monitoring Evaluation of Geotextile-reinforced Soil-retaining Walls[J]. Geosynthetics International, 2017, 14(2):100-118.
[16]KHOSROJERDI M, XIAO M, QIU T, et al. Evaluation of Prediction Methods for Lateral Deformation of GRS Walls and Abutments[J]. Journal of Geotechnical & Geoenvironmental Engineering, 2016, 143(2):06016022.
[17]HAN J, JIANG Y, XU C. Recent Advances in Geosynthetic-reinforced Retaining Walls for Highway Applications[J]. Frontiers of Structural & Civil Engineering, 2018,12(2):239-247.
[18]American Association of State Highway and Transportation Officials (AASHTO). LRFD Bridge Design Specifications[S]. Edition 7. Washington DC, USA: AASHTO, 2014.
[19]ZHENG Y, SANDER A C, RONG W, et al. Shaking Table Test of a Half-scale Geosynthetic-reinforced Soil Bridge Abutment[J]. Geotechnical Testing Journal, 2017, 41(1):171-192.
[20]袁文忠.相似理论与静力学模型试验[M]. 成都:西南交通大学出版社,1998.
[21]左东启等.模型试验的理论和方法[M].北京:水利电力出版社,1984.
[22]WU J T H. Design and Construction of Low Cost Retaining Walls: the Next Generation in Technology[M]. Denver: Colorado Transportation Institute, 1994.