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Pull-out tests and slope stability analyses of nailing systems comprising single and multi rebars with grouted cement 被引量:6

Pull-out tests and slope stability analyses of nailing systems comprising single and multi rebars with grouted cement
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摘要 The pull-out capacities for soil nailing systems comprising of one single 29 mm diameter(type A) and four 16 mm diameter(type B) rebars with grouted cement were examined.A field test and numerical analysis for the type A and type B systems were carried out to investigate the pull-out capacities and the slope stability reinforcement efficiency in soil and rock slopes.The results of the pull-out tests show the mobilized shear force and load transfer characteristics with respect to soil depth.The load-displacement relationship was examined for both type A and type B systems.Slope stability analyses were carried out to study the relationships between soil and nail reinforcement and bending stiffness as well as combined axial tension and shear forces.Factors of safety were calculated in relation to the number of nails and their outside diameters.Both soil and rock slopes were included in this evaluation. The pull-out capacities for soil nailing systems comprising of one single 29 mm diameter (type A) and four 16 mm diameter (type B) rebars with grouted cement were examined. A field test and numerical analysis for the type A and type B systems were carried out to investigate the pull-out capacities and the slope stability reinforcement efficiency in soil and rock slopes. The results of the pull-out tests show the mobilized shear force and load transfer characteristics with respect to soil depth. The load-displacement relationship was examined for both type A and type B systems. Slope stability analyses were carried out to study the relationships between soil and nail reinforcement and bending stiffness as well as combined axial tension and shear forces. Factors of safety were calculated in relation to the number of nails and their outside diameters. Both soil and rock slopes were included in this evaluation.
作者 Sang-Soo Jeon
出处 《Journal of Central South University》 SCIE EI CAS 2012年第1期262-272,共11页 中南大学学报(英文版)
关键词 soil nailing bending resistance pull-out test finite difference method 边坡稳定性分析 灌浆水泥 现场测试 系统 土壤深度 数值分析 荷载传递 拉出试验
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参考文献23

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