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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2017  >  17(6): 28-35
ZHANG Wan, XU Qiang, CHEN Jian-feng, XUE Jian-feng. Distribution and zoning of reinforcement loads for reinforced soil slopes[J]. Journal of Traffic and Transportation Engineering, 2017, 17(6): 28-35.
Citation: ZHANG Wan, XU Qiang, CHEN Jian-feng, XUE Jian-feng. Distribution and zoning of reinforcement loads for reinforced soil slopes[J]. Journal of Traffic and Transportation Engineering, 2017, 17(6): 28-35.
shu

Distribution and zoning of reinforcement loads for reinforced soil slopes

  • 1.

    School of Civil Engineering, Tongji University, Shanghai 200092, China

  • 2.

    State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan, China

  • 3.

    Geotechnical and Hydrogeological Engineering Research Group, Federation University Australia, Churchill 3842, Victoria, Australia

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    Abstract
  • Based on the result of centrifuge model test, the finite element models of reinforced soil slopes with different slope heights and angles were established.The maximum reinforcement loads in the slopes were calculated by using the strength reduction method when the safety factor was 1.30.The influence of slope height and angle on reinforcement load distribution along the height was analyzed by normalizing reinforcement load and slope height.Furthermore, thedistribution and zoning of reinforcement loads were discussed by combining with the measured reinforcement loads of field reinforced soil slopes.Analysis result shows that the computed location and shape of slope sliding surface and the safety factor at slope failure are in agreement with the centrifuge model experiment results.The distribution of reinforcement load is little influenced by slope height, whereas greatly influenced by slope angle.With the increase of slope angle, the location of maximum reinforcement load transfers from the mid height to the bottom of slope.According to the total distribution of reinforcement loads, the sums of maximum loads in reinforcement layers within the top 1/3 and the bottom 2/3 of slope account for 1/4 and 3/4 of total reinforcement tensile force, respectively.The upper part of slope requires less reinforcement loads.If using one zone method that assumes a uniform reinforcement load distribution along slope height to distribute total reinforcement tensile force, the lower degree of safety of slope will decrease.The total reinforcement tensile force of reinforced soil slopes can be distributed into zones according to slope angle. When the slope angle is no more than 1.0∶1, the total reinforcement tensile force can be distributed into three zones with equal height. The reinforcement tensile force within the top, middle and bottom zones account for 1/3, 1/2 and 1/6 of total reinforcement tensile force, respectively.When the slope angle is in the range from1.0∶1 to 2.0∶1, its upper 1/3 of height is regarded as top zone, and the bottom 2/3 of height is regarded as bottom zone.The reinforcement tensile force within the top and bottom zones account for 1/5 and 4/5 of total reinforcement tensile force, respectively.When the slope angle is no less than 2.0∶1, it can be also divided equally into three zones.The reinforcement tensile forces within the top, middle and bottom zones account for 1/6, 1/3 and 1/2 of total reinforcement tensile force, respectively. More measured data can be collected to enrich the database of reinforcement loads, so that the zoning method of reinforcement tensile force according to slope angle for reinforced soil slopes can be further completed and validated.

     

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    • References(25)
  • [1]
    MEHRJARDI G T, GHANBARI A, MEHDIZADEH H. Experimental study on the behaviour of geogrid-reinforced slopes with respect to aggregate size[J]. Geotextiles and Geomembranes, 2016, 44 (6): 862-871. doi: 10.1016/j.geotexmem.2016.06.006
    [2]
    NOORZAD R, MANAVIRAD E. Bearing capacity of two close strip footings on soft clay reinforced with geotextile[J]. Arabian Journal of Geosciences, 2014, 7 (2): 623-639. doi: 10.1007/s12517-012-0771-7
    [3]
    ZORNBERG J G, ARRIAGA F. Strain distribution within geosynthetic-reinforced slopes[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2003, 129 (1): 32-45. doi: 10.1061/(ASCE)1090-0241(2003)129:1(32)
    [4]
    RAISINGHANI D V, VISWANADHAM B V S. Centrifuge model study on low permeable slope reinforced by hybrid geosynthetics[J]. Geotextiles and Geomembranes, 2011, 29 (6): 567-580. doi: 10.1016/j.geotexmem.2011.07.003
    [5]
    MEHDIPOUR I, GHAZAVI M, MOAYED R Z. Numerical study on stability analysis of geocell reinforced slopes by considering the bending effect[J]. Geotextiles and Geomembranes, 2013, 37 (1): 23-34.
    [6]
    VISWANADHAM B V S, MAHAJAN R R. Centrifuge model tests on geotextile-reinforced slopes[J]. Geosynthetics International, 2007, 14 (6): 365-379. doi: 10.1680/gein.2007.14.6.365
    [7]
    TIWARI G, SAMADHIYA N K. Factors influencing the distribution of peak tension in geosynthetic reinforced soil slopes[J]. Indian Geotechnical Journal, 2016, 46 (1): 34-44. doi: 10.1007/s40098-015-0147-5
    [8]
    苗英豪, 胡长顺. 土工格栅加筋陡边坡路堤位移特性的试验研究[J]. 中国公路学报, 2006, 19 (1): 47-52, 57. doi: 10.3321/j.issn:1001-7372.2006.01.010

    MIAO Ying-hao, HU Chang-shun. Research on displacement characteristics of geogrid reinforced embankment with steep slope[J]. China Journal of Highway and Transport, 2006, 19 (1): 47-52, 57. (in Chinese). doi: 10.3321/j.issn:1001-7372.2006.01.010
    [9]
    朱根桥, 汪承志, 李霞. 高速公路加筋陡坡路基长期工作特性研究[J]. 岩土力学, 2012, 33 (10): 3103-3108, 3200. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201210037.htm

    ZHU Gen-qiao, WANG Cheng-zhi, LI Xia. Study of longterm performances of reinforced slope at expressway[J]. Rock and Soil Mechanics, 2012, 33 (10): 3103-3108, 3200. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201210037.htm
    [10]
    申超. 高速公路柔性生态加筋土挡墙现场监测与设计方法研究[D]. 长沙: 中南大学, 2012.

    SHEN Chao. The field monitoring and design method research of flexible eco-reinforced retaining wall in highway[D]. Changsha: Central South University, 2012. (in Chinese).
    [11]
    ZORNBERG J G, BARROWS R J, CHRISTOPHER B R, et al. Construction and instrumentation of a highway slope reinforced with high-strength geotextiles[C]//NAGS. Geosynthetics'95 Conference Proceedings-Volumn I. Nashville: NAGS, 1995: 13-27.
    [12]
    BATHURST R J, MIYATA Y, NERNHEIM A, et al. Refinement of K-stiffness method for geosynthetic-reinforced soil walls[J]. Geosynthetics International, 2008, 15 (4): 269-295. doi: 10.1680/gein.2008.15.4.269
    [13]
    ZORNBERG J G, JR E K. Prediction of the performance of a geogrid-reinforced slope founded on solid waste[J]. Soils and Foundations, 2001, 41 (6): 1-16. doi: 10.3208/sandf.41.6_1
    [14]
    FANNIN R J, HERMANN S. Performance data for a sloped reinforced soil wall[J]. Canadian Geotechnical Journal, 1990, 27 (5): 676-686. doi: 10.1139/t90-080
    [15]
    ZORNBERG J G, MITCHELL J K, SITAR N. Testing of reinforced slopes in a geotechnical centrifuge[J]. Geotechnical Testing Journal, 1997, 20 (4): 470-480. doi: 10.1520/GTJ10413J
    [16]
    ZORNBERG J G, SITAR N, MITCHELL J K. Limit equilibrium as basis for design of geosynthetic-reinforced slopes[J]. Journal of Geotechnical and Geoenvironmental Engineering, 1998, 124 (8): 684-698. doi: 10.1061/(ASCE)1090-0241(1998)124:8(684)
    [17]
    ZORNBERG J G, SITAR N, MITCHELL J K. Performance of geosynthetic reinforced slopes at failure[J]. Journal of Geotechnical and Geoenvironmental Engineering, 1998, 124 (8): 670-683. doi: 10.1061/(ASCE)1090-0241(1998)124:8(670)
    [18]
    YANG K H, ZORNBERG J G, WRIGHT S G. Numerical modeling of narrow MSE walls with extensible reinforcements[R]. Austin: University of Texas at Austin, 2008.
    [19]
    ALLEN T M, BATHURST R J, HOLTZ R D, et al. A new working stress method for prediction of reinforcement loads in geosynthetic walls[J]. Canadian Geotechnical Journal, 2003, 40 (5): 976-994. doi: 10.1139/t03-051
    [20]
    ALLEN T M, BATHURST R J. Design and performance of6.3-m-high, block-faced geogrid wall design using K-stiffness method[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2013, 139 (2): 1-12.
    [21]
    ALLEN T M, BATHURST R J. Performance of a 11mhigh block-faced geogrid wall designed using the K-stiffness Method[J]. Canadian Geotechnical Journal, 2014, 51 (1): 16-29. doi: 10.1139/cgj-2013-0261
    [22]
    HATAMI K, BATHURST R J. Development and verification of a numerical model for the analysis of geosynthetic-reinforced soil segmental walls under working stress conditions[J]. Canadian Geotechnical Journal, 2005, 42 (4): 1066-1085. doi: 10.1139/t05-040
    [23]
    HUANG Bing-quan, BATHURST R J, HATAMI K, et al. Influence of toe restraint on reinforced soil segmental walls[J]. Canadian Geotechnical Journal, 2010, 47 (8): 885-904. doi: 10.1139/T10-002
    [24]
    YU Yan, BATHURST R J, ALLEN T M. Numerical modeling of the SR-18geogrid reinforced modular block retaining walls[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2016, 142 (5): 1-13.
    [25]
    HATAMI K, BATHURST R J. Numerical model for reinforced soil segmental walls under surcharge loading[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2006, 132 (6): 673-684. doi: 10.1061/(ASCE)1090-0241(2006)132:6(673)
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