Abstract
The objective of this research was to assess the characteristics of seismic induced damage and the deformation patterns of pre-stressed cement-grouted cables that are used for rock slope stabilization projects subjected to quasi-static cyclic loading. The experimental configuration includes the installation of 15 pre-stressed cables in a slope model made of concrete blocks (theoretically rigid rock mass) on top of a pre-existing sliding surface. The study showed that: (i) The pre-stressed cables exhibited great seismic performance. Rapid displacement of the model blocks was observed after the complete loss of the initial pre-stress load under continued applied cyclic loads and exceedance of the state of equilibrium, which implies the higher the initial pre-stress load, the better the seismic performance of the rock anchor; (ii) The failure of the pre-stressed cables was due to fracture at the connection of the tendons and cable heads under cyclic loading. The sequence of failure had a distinct pattern. Failure was first observed at the upper row of cables, which experienced the most severe damage, including the ejection of cable heads. No evidence of de-bonding was observed during the cyclic loading; (iii) The stress distribution of the bond length for pre-stressed cables was highly non-uniform. High stress concentrations were observed at both the fixed end and the free end of the bond length both before and immediately after the state of equilibrium is exceeded. The results obtained can be used to evaluate the overall performance of pre-stressed rock anchors subject to seismic loading and their potential as rockfall prevention and stabilization measures.
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References
Benmokrane B, Chekired M, Xu H, Ballivy G (1995) Behavior of grouted anchors subjected to repeated loadings in field. Journal of Geotechnical Engineering 121:413–420. DOI: 10.1061/(ASCE)0733-9410(1995)121:5(413)
California Division of Mines and Geology (1997) Guidelines for evaluating and mitigating seismic hazards in California. California Division of Mines and Geology Special Publication.
Cheng CT (2008) Shaking table tests of a self-centering designed bridge substructure. Engineering Structures 30: 3426–3433.
China Earthquake Administration (2010) Seismic Ground Motion Parameter Zonation Map of China (GB18306-2001).
Driver BRG, Kulak GL, Kennedy DJL, Elwi AE (1998). Cyclic test of four-story steel plate shear wall. Journal of Structural Engineering 124: 112–120.
Farmer IW (1975) Stress distribution along a resin grouted rock anchor. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts 12:347–351. DOI: 10.1016/0148-9062(75)90168-0
Gibson AD (1997) Physical scale modeling of geotechnical structures at one-G. Ph.D. Thesis. California Institute of Technology.
Hanna TH (1982) Foundations in tension-ground anchors. Trans. Tech. Publications/McGraw Hill Book Co., Clausthal-Zellerfeld, West Germany.
Hoek E, Bray JW (1981) Rock slope engineering. Institutet of Mining and Metallurgy, London, UK.
Huang RQ (2009) Some catastrophic landslides since the twentieth century in the southwest of China. Landslides 6:69–81. DOI: 10.1007/s10346-009-0142-y
Huang RQ, Xu Q (2008) Catastrophic landslides in China. Bei**g: Science Press. pp 243, 424.
Hynes-Griffin ME, Franklin AG (1984) Rationalizing the Seismic Coefficient Method. (No. WES/MP/GL-84-13). Army Engineer Waterways Experiment Station Vicksburg MS Geotechnical Lab.
Iai S (1989) Similitude for shaking table tests on soil-structurefluid model in 1g gravitational field. Soils and Foundations 29:105–118.
Jibson RW (2011) Methods for assessing the stability of slopes during earthquakes—A retrospective. Engineering Geoleology 122:43–50. DOI: 10.1016/j.enggeo.2010.09.017
Kitajima S, Uwabe T (1979) Analysis of seismic damage in anchored sheet-piling bulkheads. Report of the Japanese Port and Harbor Research Institute 18:67–130.
Kramer SL, Smith MW (1997) Modified newmark model for seismic displacements of compliant slopes. Journal of Geotechnical and Geoenvironmental Engineering 123: 635–644.
Lin ML, Wang KL (2006) Seismic slope behavior in a large-scale shaking table model test. Engineering Geology 86:118–133.
Ling HI, Mohri Y, Leshchinsky D, et al. (2005) Large-scale shaking table tests on modular-block reinforced soil retaining walls. Journal of Geotechnical and Geoenvironmental Engineering, American Society of Civil Engineers 131:465–476.
Lu X (2000) Influence of Rock High Slope Explosive Excavation on Anchored Installations. Blasting 17:147–151. (In Chinese)
Merrifield CM, Carey JM (1997) Response of Vertical Anchorages to Cyclic Loading, Modelled in the Centrifuge. Gr. Anchorages Anchored Struct. Proceedings of the International Conference Organized by the Institution of Civil Engineers and Held in London, UK, 20-21 March 1997. American Society of Civil Engineers. p 450.
Meymand PJ (1998) Shaking table scale model tests of nonlinear soil-pile-superstructure interaction in soft clay. Ph.D. Thesis. University of California, Berkeley.
Morin PB, Léger P, Tinawi R (2002) Seismic behavior of posttensioned gravity dams: shake table experiments and numerical simulations. Journal of Structural Engineering 128:140–152.
Seed H (1979) Considerations in the earthquake-resistant design of earth and rockfill dams. Geotechnique 29: 215–263.
Su H, Zhang J (2003) Analysis on Blasting Vibration Effect on Prestressed Cable of High Slope in Zi**pu Project. Chinese Journal of Rock Mechanics and Engineering 22:6–8. (In Chinese)
Wartman J, Bray JD, Seed RB (2003) Inclined plane studies of the Newmark sliding block procedure. Journal of Geotechnical and Geoenvironmental Engineering 129: 673–684.
Wyllie DC, Mah C (2004) Rock slope engineering. CRC Press, Boca Raton, Florida.
Wyllie DC, Norrish NI (1996) Landslides: Investigation and Mitigation. Transportation Research Board Special Report 247.
Xanthakos PP (1991) Ground anchors and anchored structures. John Wiley & Sons, Hoboken, New Jersey, USA.
Xu Q, Liu H, Zou W, et al. (2010) Large scale shaking table test study of acceleration dynamic responses characteristics of slopes. Chinese Journal of Rock Mechanics and Engineering 29:2420–2428. (In Chinese)
Yang S, Liang B, Gu J, et al. (2006) Research on Characteristics of Prestress Change of Anchorage Cable in Anti-Explosion Model Test of Anchored Cavern. Chinese Journal of Rock Mechanics and Engineering 25:3749–3756. (In Chinese)
Zheng W, Zhuang X, Cai Y (2012) On the seismic stability analysis of reinforced rock slope and optimization of prestressed cables. Frontiers of Structural and Civil Engineering 6:132–146.
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Zheng, D., Liu, Fz., Ju, Np. et al. Cyclic load testing of pre-stressed rock anchors for slope stabilization. J. Mt. Sci. 13, 126–136 (2016). https://doi.org/10.1007/s11629-015-3605-8
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DOI: https://doi.org/10.1007/s11629-015-3605-8