Abstract
In order to investigate the effect of corrosion on bond behavior of anchored jointed rock masses, based on the migration law of pitting corrosion obtained by laboratory tests and the concept of strength reduction, the anchoring pull-out test of jointed rock mass was simulated by using Discrete Element Method (DEM). The results show that for uncorroded rock specimens, due to the existence of joints, there are significant differences for granular displacement and bond failure on both sides of the rock bolt during pull-out process, and phenomenon of eccentric tension also appears; for corroded rock specimens, the reduction rate of bond strength and slip ratio of single and double joint specimens decrease linearly with the increase of pitting corrosion rate. The decreasing rate gets fast with the increase of joints, but it is not a multiple relationship. Compared with the test with uncorroded specimens, when the pitting corrosion rate is 15%, the maximum pull-out load of the single-joint specimen with joint angel of 45° is reduced by 1 7.8%, and the slip value is reduced by 14.6%; the maximum pull-out load of the double-joint specimen is reduced by 31.9%, and the slip value is reduced by 24.9%. The numerical test results are in good agreement with the laboratory test results. The research results can provide reference for the selection and optimization of the design parameters of anchoring support structure of jointed rock mass under the erosion environment in the future.
Similar content being viewed by others
References
Che N, Wang HN, Jiang MJ, Liao YB (2018) Mechanism investigation of rock bolt failure in anchorage segment under pullout via DEM. Chinese Journal of Underground Space and Engineering 14(S2):228–236 (in Chinese)
Craig P, Ramandi HL, Chen HH, Vandermaat D, Crosky A, Hagan P, Hebblewhite B, Saydam S (2021) Stress corrosion cracking of rockbolts: An in-situ testing approach. Construction and Building Materials 269:121275, DOI: https://doi.org/10.1016/j.conbuildmat.2020.121275
Ding WT, Hou ML, Chen L, Liu KQ, Chen R, Wang Y, Wang MB (2019a) Experimental study on the deterioration rules of anchoring performance of rock mass under different joints distribution. Advances in Civil Engineering 2019(2):1–12, DOI: https://doi.org/10.1155/2019/3546052
Ding WT, Li SC (2013) Effect of corrosion on reinforcement performance of anchorage support structure of subsea tunnel. Journal of South China University of Technology 41(6):100–107+139, DOI: https://doi.org/10.3969/j.issn.1000-565X.2013.06.016 (in Chinese)
Ding WT, Li MJ, Wang MB, Chen R, Wang Y, Chen L (2019b) Experimental study on corrosion of anchored rock mass for half-through intermittent joints. Advances in Civil Engineering 2019(2):1–12, DOI: https://doi.org/10.1155/2019/6018678
Ding WT, Liu JH, Zhang LW (2014) Analysis on interaction of rock-bolts in anchorage support structure of subsea tunnel at different corrosion levels. Journal of Central South University (Science and Technology) 45(5):1642–1652 (in Chinese)
Fang W, Sima J, Jiang MJ (2018) Numerical simulation of sliding failure in rock-bolt interface by discrete element model. Journal of Yangtze River Scientific Research Institute 35(5):73–78, DOI: https://doi.org/10.11988/ckyyb.20161311 (in Chinese)
Gamboa E, Atrens A (2003) Environmental influence on the stress corrosion cracking of rock bolts. Engineering Failure Analysis 10(5):521–558, DOI: https://doi.org/10.1016/S1350-6307(03)00036-0
Gamboa E, Atrens A (2005) Material influence on the stress corrosion cracking of rock bolts. Engineering Failure Analysis 12(2):201–235, DOI: https://doi.org/10.1016/j.engfailanal.2004.07.002
Guo XH, Wang MS (2007) Analysis of efficacy of rock bolt for tunnel support structure. Rock and Soil Mechanics 2007(10):2234–2239 (in Chinese)
Huang MH, Zhou Z, Ou JP (2014) Nonlinear full-range analysis of load transfer in fixed segment of tensile anchors. Chinese Journal of Rock Mechanics and Engineering 33(11):2190–2199, DOI: https://doi.org/10.13722/j.cnki.jrme.2014.11.004 (in Chinese)
Hyett AJ, Bawden WF, Reichert RD (1992) The effect of rock mass confinement on the bond strength of fully grouted cable bolts. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts 29(5):503–524, DOI: https://doi.org/10.1016/0148-9062(92)92634-O
Ishizuka Y, Abe T (2011) Studies of bond strength behavior and numerical model of fully grouted cable bolts. Journal of Tunnel Engineering 7:7–14
Jiang MJ, Chen H, Crosta GB (2015) Numerical modeling of rock mechanical behavior and fracture propagation by a new bond contact model. International Journal of Rock Mechanics and Mining Sciences 78:175–189, DOI: https://doi.org/10.1016/j.ijrmms.2015.03.031
Kang HP, Wang JH, Lin J (2010) Case studies of rock bolting in coal mine roadways. Chinese Journal of Rock Mechanics and Engineering 029(4):649–664 (in Chinese)
Li MJ (2019) Experimental study on anchoring corrosion of rock mass with anchored joints under seawater erosion. MSc Thesis, Shandong University, Jinan, China (in Chinese)
Li Z, Yuan Y, Liu X (2011) Study on structural performance of tunnel lining under rust corrosion conditions. High Speed Railway Technology 2011:63–67 (in Chinese)
Li YY, Zhang DL, Zhang HB, Song XG (2010) Research on failure mechanism and effects of prestressed anchor cables for reinforcing slopes. Rock and Soil Mechanics 2010(1):148–154+161, DOI: https://doi.org/10.16285/j.rsm.2010.01.035 (in Chinese)
Liang Y, Luo XY, Xiao XQ, Zhang YF (2012) Experimental study on bond-slip performance of corroded reinforced concrete. Industrial Construction 42(10):95–100, DOI: https://doi.org/10.13204/j.gyjz2012.10.023 (in Chinese)
Luo Q, Zhao LH, Li L, Tan HH, Luo W (2013) Stability analysis of anchored rock slope based on barton-bandis failure criterion. Rock and Soil Mechanics 34(5):1351–1359, DOI: https://doi.org/10.16285/j.rsm.2013.05.004 (in Chinese)
Ma SQ, Aziz N, Nemcik J, Mirzaghorbanali A (2017) The effects of installation procedure on bond characteristics of fully grouted rock bolts. Geotechnical Testing Journal 40.5(2017):846–857, DOI:https://doi.org/10.1520/GTJ20160239
Ma, SQ, Nemcik, J, Aziz N (2014) Simulation of fully grouted rockbolts in underground roadways using FLAC2D. Canadian Geotechnical Journal 51.8(2014):911–920, DOI: https://doi.org/10.1139/cgj-2013-0338
Nie W, Zhao ZY, Guo W, Shang J, Wu C (2019) Bond-slip modeling of a CMC rockbolt element using 2D-DDA method. Tunnelling and Underground Space Technology 85:340–353, DOI: https://doi.org/10.1016/j.tust.2018.12.025
Ren FF, Yang ZJ, Chen JF, Chen WW (2010) An analytical analysis of the full-range behaviour of grouted rockbolts based on a tri-linear bond-slip model. Construction and Building Materials 24(3):361–370, DOI: https://doi.org/10.1016/j.conbuildmat.2009.08.021
Song EX, Qiu Y (2001) Deformation analysis of composite soil nailing by FEM. Building Construction 2001(6):370–371+374, DOI: https://doi.org/10.3969/j.issn.1004-1001.2001.06.002 (in Chinese)
Vlachopoulos N, Cruz D, Forbes B (2018) Utilizing a novel fiber optic technology to capture the axial responses of fully grouted rock bolts. Journal of Rock Mechanics and Geotechnical Engineering 10(2):222–235, DOI: https://doi.org/10.1016/j.jrmge.2017.11.007
Wang CB, Lei GF (2017) Experiment study on bolt anchorage affected to mechanics features of fractured rock mass. Mine Construction Technology 38(02):23–29, DOI: https://doi.org/10.19458/j.cnki.cn11-2456/td.2017.02.007
Zhang JR, Tang BF (2002) Hyperbolic function model to analyze load transfer mechanism on bolts. Chinese Journal of Geotechnical Engineering 2002(2):188–192 DOI: https://doi.org/10.3321/j.issn:1000-4548.2002.02.013 (in Chinese)
Zhang YX, Xu M (2002) Numerical analysis of quality inspection of anchorage system. Journal of Chongqing University (English Edition) 1(1):42–46
Zhang PS, Yin K (2009) An analysis method of the whole working course for the force transferring mechanism in fixed segment of tensile-type anchor bar. Chinese Journal of Underground Space and Engineering 5(4):716–723, DOI: https://doi.org/10.3969/j.issn.1673-0836.2009.04.017 (in Chinese)
Acknowledgments
The authors acknowledge the financial support provided by the National Natural Science Foundation of China (Grant No.: 41572275) and the Natural Science Foundation of Shandong Province (Grant No.: ZR2012EEM006).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ding, W., Wang, Z., Huang, X. et al. Influence of Corrosion on Anchoring Bond Behavior of Jointed Rock Mass. KSCE J Civ Eng 26, 1914–1928 (2022). https://doi.org/10.1007/s12205-022-0324-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12205-022-0324-x