Skip to main content
main-content
Top

Hint

Swipe to navigate through the articles of this issue

Published in: Geotechnical and Geological Engineering 8/2022

12-05-2022 | Original Paper

Directional Support Method for Tunnel Jointed Rock Mass

Authors: Xu Wu, Jinliang Xu, Liyuan Zhang, Jinglai Sun, Zhengyu He, Jun Gao

Published in: Geotechnical and Geological Engineering | Issue 8/2022

Login to get access
share
SHARE

Abstract

In order to explore the directional support method of jointed rock mass and ensure the stable operation of roadway, the support effect of jointed rock mass was analyzed by numerical simulation and on-site monitoring. The results showed that directional support could effectively reduce the deformation and ensured the stability of surrounding rock. In the process of directional reinforcement support construction, the plane formed by multiple bolts was guaranteed to be perpendicular to the structural plane, and the bolt hole extended along the normal plane of roadway, the control effect of this support mode was the best. The stress change law of surrounding rock of roadway was monitored by using borehole force meter. The results showed that the stress released occurs in surrounding rock of roadway after excavation, and the cumulative stress change value did not increase 5 to 7 days after excavation. The jointed rock mass remained in a stable state under the action of directional reinforcement support. The directional reinforcement of roadway surrounding rock had a good control effect on roadway stability.
Literature
go back to reference Erdogan F, Sih GC (1963) On the crack extension in plates under plane loading and transverse shear. J Basic Eng Trans ASME 85:519–527 CrossRef Erdogan F, Sih GC (1963) On the crack extension in plates under plane loading and transverse shear. J Basic Eng Trans ASME 85:519–527 CrossRef
go back to reference Feng G, Zhang J, Jiang Q et al (2021) Synergistic observation and mechanism analysis of time-dependent fracture process of columnar jointed rockmass under strong unloading during excavation. Chin J Rock Mech Eng 40(2):3041–3051 ( in Chinese) Feng G, Zhang J, Jiang Q et al (2021) Synergistic observation and mechanism analysis of time-dependent fracture process of columnar jointed rockmass under strong unloading during excavation. Chin J Rock Mech Eng 40(2):3041–3051 ( in Chinese)
go back to reference Guo Q, Wu X, Cai M et al (2019a) Test sutdy on crack initiation mechanism of pre-existing cracked granite. J China Coal Soc 44(S2):476–483 Guo Q, Wu X, Cai M et al (2019a) Test sutdy on crack initiation mechanism of pre-existing cracked granite. J China Coal Soc 44(S2):476–483
go back to reference Guo Q, Wu X, Cai M et al (2019b) Experiment on the strength characteristics and failure modes of granite with pre-existing cracks. Chin J Eng 41(1):43–52 Guo Q, Wu X, Cai M et al (2019b) Experiment on the strength characteristics and failure modes of granite with pre-existing cracks. Chin J Eng 41(1):43–52
go back to reference Jiang Y, Hu X (2005) The fracture criterion of the maximum size of plastic zone of mixed mode crack growth. J Sichuan Univ 37(4):11–14 ( in Chinese) Jiang Y, Hu X (2005) The fracture criterion of the maximum size of plastic zone of mixed mode crack growth. J Sichuan Univ 37(4):11–14 ( in Chinese)
go back to reference Lin B (1985) The mixed mode brittle fracture criteria in sliding mode fracture. Appl Math Mech 6(11):977–983 ( in Chinese) Lin B (1985) The mixed mode brittle fracture criteria in sliding mode fracture. Appl Math Mech 6(11):977–983 ( in Chinese)
go back to reference Ren Y (2016) Study on the deformation and stability of the shaoguo tunnel in jointed rock mass. Hebei University of Technology, Tianjin Ren Y (2016) Study on the deformation and stability of the shaoguo tunnel in jointed rock mass. Hebei University of Technology, Tianjin
go back to reference Sih GC (1974) Strain energy density factor applied to mixed mode crack problems. Int J FractMech 10(3):305–321 CrossRef Sih GC (1974) Strain energy density factor applied to mixed mode crack problems. Int J FractMech 10(3):305–321 CrossRef
go back to reference Sun J, Wang F, Li Z et al (2022) A new hybrid copula-based nonparametric Bayesian model for risk assessments of water inrush. Qual Reliabil Eng Int 2022(1):1–20 Sun J, Wang F, Li Z et al (2022) A new hybrid copula-based nonparametric Bayesian model for risk assessments of water inrush. Qual Reliabil Eng Int 2022(1):1–20
go back to reference Tan Y, Jiang F, Fan W et al (1999) Simulation of bolting effect on the stability of jointed rockmass by dispersive element method. J Eng Geol 7(4):361–365 Tan Y, Jiang F, Fan W et al (1999) Simulation of bolting effect on the stability of jointed rockmass by dispersive element method. J Eng Geol 7(4):361–365
go back to reference Wu X (2019) Directional failure and control of surrounding rock with Non-through cross-type jointed for tunnels. University of Science and Technology, Beijing Wu X (2019) Directional failure and control of surrounding rock with Non-through cross-type jointed for tunnels. University of Science and Technology, Beijing
go back to reference Wu X, Wang F, Xi X et al (2020) Experimental investigation on the strength characteristics and fracture mechanism of rock with orthogonally crossed cracks. J China Coal Soc 45(07):2681–2690 Wu X, Wang F, Xi X et al (2020) Experimental investigation on the strength characteristics and fracture mechanism of rock with orthogonally crossed cracks. J China Coal Soc 45(07):2681–2690
go back to reference Wu X, Guo Y, Sun J et al (2021a) Energy Evolution of Orthogonal Cracked Rock under Uniaxial Loading. Chin J Undergr Space Eng 17(1):114–119 ( in Chinese) Wu X, Guo Y, Sun J et al (2021a) Energy Evolution of Orthogonal Cracked Rock under Uniaxial Loading. Chin J Undergr Space Eng 17(1):114–119 ( in Chinese)
go back to reference Wu X, Zhang L, Sun J et al (2021b) Deformation and energy evolution analysis of granite with cross-cracks under uniaxial compression. J Beijing Jiaotong Univ 45(3):77–83 ( in Chinese) Wu X, Zhang L, Sun J et al (2021b) Deformation and energy evolution analysis of granite with cross-cracks under uniaxial compression. J Beijing Jiaotong Univ 45(3):77–83 ( in Chinese)
go back to reference Zhang B, Li SC, Yang XY et al (2014) Bolting effect and failure modes of jointed rock masses with cross-cracks. Chin J Rock Mech Eng 33(5):996 Zhang B, Li SC, Yang XY et al (2014) Bolting effect and failure modes of jointed rock masses with cross-cracks. Chin J Rock Mech Eng 33(5):996
go back to reference Zhang S, Wang C, Wang G et al (2022) Experimental study on the shear behaviors of bolted rock joints reinforced with BFRP bars. Chin J Rock Mech Eng 41(1):1–13 ( in Chinese) Zhang S, Wang C, Wang G et al (2022) Experimental study on the shear behaviors of bolted rock joints reinforced with BFRP bars. Chin J Rock Mech Eng 41(1):1–13 ( in Chinese)
go back to reference Zhao Y (1987) A strain energy criteria for mixed mode crack propagation. Acta Mech Solid Sin 8(1):65–69 ( in Chinese) Zhao Y (1987) A strain energy criteria for mixed mode crack propagation. Acta Mech Solid Sin 8(1):65–69 ( in Chinese)
go back to reference Zhu X, Chen Z, Zhao D (2018) Rock bolt support mechanism of deep buried zonal disintegration tunnel. J Liaoning Tech Univ 34(4):703–709 ( in Chinese) Zhu X, Chen Z, Zhao D (2018) Rock bolt support mechanism of deep buried zonal disintegration tunnel. J Liaoning Tech Univ 34(4):703–709 ( in Chinese)
Metadata
Title
Directional Support Method for Tunnel Jointed Rock Mass
Authors
Xu Wu
Jinliang Xu
Liyuan Zhang
Jinglai Sun
Zhengyu He
Jun Gao
Publication date
12-05-2022
Publisher
Springer International Publishing
Published in
Geotechnical and Geological Engineering / Issue 8/2022
Print ISSN: 0960-3182
Electronic ISSN: 1573-1529
DOI
https://doi.org/10.1007/s10706-022-02148-z

Other articles of this Issue 8/2022

Geotechnical and Geological Engineering 8/2022 Go to the issue