Modelling the flexural buckling failure of stratified rock slopes based on the multilayer beam model

Yan jun Zhang, Ting kai Nian, Xing sen Guo, Guangqi Chen, Lu Zheng

Research output: Contribution to journalArticle

Abstract

The buckling failure of stratified rock slopes intersected by a set of steep discontinuities that are approximately parallel to the slope surface is frequently encountered while constructing railways and roadways in mountainous areas. In this study, an analytical approach based on the energy equilibrium principle is presented to solve the flexural buckling stability of stratified rock slopes within the framework of multilayer beam theory. The generalized Hoek-Brown failure criterion is introduced to reflect the influences of slope size (scale effects) on the buckling stability. Subsequently, numerical and physical modellings from previous literatures are employed to validate the proposed approach. Furthermore, a practical case of Bawang Mountain landslide is also used for the comparative analysis. The study shows that the present analytical approach is capable to provide a more reasonable assessment for the buckling failure of stratified rock slopes, compared with several existing analytical approaches. Finally, a detailed parametric study is implemented, and the results indicate that the effects of rock strength, rock deformation modulus, geological strength index, layer thickness and disturbance degree of rock mass on the buckling failure of stratified rock slopes are more significant than that of rock type and slope angle.

Original languageEnglish
Pages (from-to)1170-1183
Number of pages14
JournalJournal of Mountain Science
Volume16
Issue number5
DOIs
Publication statusPublished - May 1 2019

Fingerprint

buckling
rock
modeling
German Federal Railways
energy
present
slope angle
scale effect
railway
landslide
discontinuity
disturbance
mountain

All Science Journal Classification (ASJC) codes

  • Global and Planetary Change
  • Geography, Planning and Development
  • Geology
  • Earth-Surface Processes
  • Nature and Landscape Conservation

Cite this

Modelling the flexural buckling failure of stratified rock slopes based on the multilayer beam model. / Zhang, Yan jun; Nian, Ting kai; Guo, Xing sen; Chen, Guangqi; Zheng, Lu.

In: Journal of Mountain Science, Vol. 16, No. 5, 01.05.2019, p. 1170-1183.

Research output: Contribution to journalArticle

Zhang, Yan jun ; Nian, Ting kai ; Guo, Xing sen ; Chen, Guangqi ; Zheng, Lu. / Modelling the flexural buckling failure of stratified rock slopes based on the multilayer beam model. In: Journal of Mountain Science. 2019 ; Vol. 16, No. 5. pp. 1170-1183.
@article{1eb9c04dd33b4ac29f371bee64734edf,
title = "Modelling the flexural buckling failure of stratified rock slopes based on the multilayer beam model",
abstract = "The buckling failure of stratified rock slopes intersected by a set of steep discontinuities that are approximately parallel to the slope surface is frequently encountered while constructing railways and roadways in mountainous areas. In this study, an analytical approach based on the energy equilibrium principle is presented to solve the flexural buckling stability of stratified rock slopes within the framework of multilayer beam theory. The generalized Hoek-Brown failure criterion is introduced to reflect the influences of slope size (scale effects) on the buckling stability. Subsequently, numerical and physical modellings from previous literatures are employed to validate the proposed approach. Furthermore, a practical case of Bawang Mountain landslide is also used for the comparative analysis. The study shows that the present analytical approach is capable to provide a more reasonable assessment for the buckling failure of stratified rock slopes, compared with several existing analytical approaches. Finally, a detailed parametric study is implemented, and the results indicate that the effects of rock strength, rock deformation modulus, geological strength index, layer thickness and disturbance degree of rock mass on the buckling failure of stratified rock slopes are more significant than that of rock type and slope angle.",
author = "Zhang, {Yan jun} and Nian, {Ting kai} and Guo, {Xing sen} and Guangqi Chen and Lu Zheng",
year = "2019",
month = "5",
day = "1",
doi = "10.1007/s11629-018-5007-1",
language = "English",
volume = "16",
pages = "1170--1183",
journal = "Journal of Mountain Science",
issn = "1672-6316",
publisher = "Science Press",
number = "5",

}

TY - JOUR

T1 - Modelling the flexural buckling failure of stratified rock slopes based on the multilayer beam model

AU - Zhang, Yan jun

AU - Nian, Ting kai

AU - Guo, Xing sen

AU - Chen, Guangqi

AU - Zheng, Lu

PY - 2019/5/1

Y1 - 2019/5/1

N2 - The buckling failure of stratified rock slopes intersected by a set of steep discontinuities that are approximately parallel to the slope surface is frequently encountered while constructing railways and roadways in mountainous areas. In this study, an analytical approach based on the energy equilibrium principle is presented to solve the flexural buckling stability of stratified rock slopes within the framework of multilayer beam theory. The generalized Hoek-Brown failure criterion is introduced to reflect the influences of slope size (scale effects) on the buckling stability. Subsequently, numerical and physical modellings from previous literatures are employed to validate the proposed approach. Furthermore, a practical case of Bawang Mountain landslide is also used for the comparative analysis. The study shows that the present analytical approach is capable to provide a more reasonable assessment for the buckling failure of stratified rock slopes, compared with several existing analytical approaches. Finally, a detailed parametric study is implemented, and the results indicate that the effects of rock strength, rock deformation modulus, geological strength index, layer thickness and disturbance degree of rock mass on the buckling failure of stratified rock slopes are more significant than that of rock type and slope angle.

AB - The buckling failure of stratified rock slopes intersected by a set of steep discontinuities that are approximately parallel to the slope surface is frequently encountered while constructing railways and roadways in mountainous areas. In this study, an analytical approach based on the energy equilibrium principle is presented to solve the flexural buckling stability of stratified rock slopes within the framework of multilayer beam theory. The generalized Hoek-Brown failure criterion is introduced to reflect the influences of slope size (scale effects) on the buckling stability. Subsequently, numerical and physical modellings from previous literatures are employed to validate the proposed approach. Furthermore, a practical case of Bawang Mountain landslide is also used for the comparative analysis. The study shows that the present analytical approach is capable to provide a more reasonable assessment for the buckling failure of stratified rock slopes, compared with several existing analytical approaches. Finally, a detailed parametric study is implemented, and the results indicate that the effects of rock strength, rock deformation modulus, geological strength index, layer thickness and disturbance degree of rock mass on the buckling failure of stratified rock slopes are more significant than that of rock type and slope angle.

UR - http://www.scopus.com/inward/record.url?scp=85065415296&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065415296&partnerID=8YFLogxK

U2 - 10.1007/s11629-018-5007-1

DO - 10.1007/s11629-018-5007-1

M3 - Article

AN - SCOPUS:85065415296

VL - 16

SP - 1170

EP - 1183

JO - Journal of Mountain Science

JF - Journal of Mountain Science

SN - 1672-6316

IS - 5

ER -