Analysis of Influences of Weak Joints and Confining Pressure on Rock Mass Strength by Numerical Simulation

Da Hai Wang; Hao Ran Guo; Hui Zhao; Yan Wei Guo

doi:10.4028/www.scientific.net/AMM.438-439.607

Paper Titles

Research on Seepage Characteristics of Deep Cut Canal under Dewatering Well
p.588

The Australian Approach to Residential Footing Design on Expansive Soils
p.593

Study on Microstructure of Remolded Loess Using Computerized Tomography
p.599

Discussions about Modification Issue of Rod Length in Standard Penetration Test
p.602

Analysis of Influences of Weak Joints and Confining Pressure on Rock Mass Strength by Numerical Simulation
p.607

The Research of Squat Silos Dynamic Pressure and Eccentric Discharge Trial
p.612

Study on Effect of Step Height and Load for Large Wind Turbine Spreading Foundation
p.619

Allowable Height Difference between Adjacent Monoliths with Spherical Surface Key Groove in Transverse Joints
p.624

Study on Utilization of Soft Rock to Construct 200m Super High CFRD
p.629

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 438-439Analysis of Influences of Weak Joints and...

Analysis of Influences of Weak Joints and Confining Pressure on Rock Mass Strength by Numerical Simulation

Abstract:

Principal influencing factors of the strength of rock mass with weak joints were studied in this paper. Dip angles of weak joints in addition with the confining pressure is studied based on strain-softening/hardening plasticity model. The broken mechanism from the perspective of plastic zone was analyzed. The strength of rock mass with weak joints is mainly under control of the joints occurrence, the joints dip and the rock strength, and great influenced by the confining pressure. A higher strength is obtained with a higher confining pressure, the broken mechanisms varies with different joints dips.

You might also be interested in these eBooks

Civil Engineering, Architecture and Sustainable Infrastructure II

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 438-439)

Pages:

607-611

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.438-439.607

Citation:

Cite this paper

Online since:

October 2013

Authors:

Da Hai Wang, Hao Ran Guo, Hui Zhao, Yan Wei Guo

Keywords:

Confining Pressure, Joint, Numerical Simulation, Rock Mass Strength

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] K. Zhou, Y. Li, Q. Liu, Numerical analysis of structure plane characteristic for strength of stratified rock mass, Journal of Central South University (Science and Technology), 4 (2012) 1424-1428.

Google Scholar

[2] Y. Gan, S. Gan, X. Zhen, Study of the influence of joint on the triaxial compression strength. Science Technology and Engineering, 12 (2012) 9861-9864.

Google Scholar

[3] X. Wang, Y. Pan, Q. Sheng, X. Ding, Simulation of triaxial compression and localization of deformation, Rock and Soil Mechanics, 3 (2001) 323~326.

Google Scholar

[4] Y. Zuo, W. Zhu, C. Tang, et al, Numerical simulation on spallation process of homogenous medium induced by reflection of stress wave, Journal of Central South University (Science and Technology, 6 (2006) 1177-1182.

Google Scholar

[5] Z. Zhu, H. Zhu, Q. Liu, et al, Characteristics and fitting model of structure plane in layered rock mass, Journal of Civil, Architectural & Environmental Engineering, 5 (2009) 38-42.

Google Scholar

[6] J. C. Jaeger, Shear failure of anisotropic rock, Geological Magazine, 97 (1960) 65-72.

Google Scholar

[7] M. Cai, Rock Mechanics and Geotechnical Engineering, Science Press, Beijing, (2002).

Google Scholar

[8] ITASCA, Consulting Group Inc. Fast Lagrangian Analysis of Continua in 3 dimension. (1996).

Google Scholar

[9] H. Cen, Elasticity and Plasticity, China Building Industry Press, Beijing, (2004).

Google Scholar

[10] B. Liu, Y. Han, The principle, example and application of FLAC, China Communications Press, Beijing, (2005).

Google Scholar