Application of Numerical Simulation in Reinforcement of Caverns Underground by External Cross-Anchoring

Article Preview

Abstract:

In this paper, the responses of cavern underground reinforced by external cross-anchoring under blast loading were simulated by three-dimensional computational model made in software FLAC3D. It compared and supplementary analyzed the calculated displacement curves, the nephograms of maximum principal stress and destruction of cavern with that of model test, and analyzed the effect and mechanism of reinforced cable in this way comprehensively from deformation and destruction of surrounding rock outside, dynamic strain of cavern, energy absorption by anchor and energy consumption transferred through stress etc.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

835-839

Citation:

Online since:

January 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Tannant D.D. Rock bolt behaviour under dynamic loading field test and modeling [J]. International Journal of Rock Mechanics and Mining Sciences and Ge mechanics Abstracts, Vol. 32 (6) (1995), pp.537-550.

DOI: 10.1016/0148-9062(95)00024-b

Google Scholar

[2] Ivanovic A, Neilson R. D, Ronger A.A. Influence of prestress on the dynamic response of ground anchorages [J]. Journal of Geotechnical and Geoenvironmental Engineering, Vol. 128 (3) (2002), pp.237-249.

DOI: 10.1061/(asce)1090-0241(2002)128:3(237)

Google Scholar

[3] Hagedorn H. Dynamic rock bolt test and UDEC simulation for a large carven under shock load[C]. Proceedings of International UDEC/3DEC Symposium on Numerical Modeling of Discrete Materialism Geotechnical Engineering, Civil Engineering, and Earth Sciences. Bochum(2004).

DOI: 10.1201/9780203023983-8

Google Scholar

[4] Liu wentao. Research on rock model with damage constitutive and explosion effect underground[D]. Hefei: University of science and technology of China, Vol. 4 (2002), pp.12-15.

Google Scholar

[5] Feng jinji. Engineering vibration caused by exploding from Shells and bombs [D]. Chengdu: Southwest Jiao tong University, Vol. 5 (2001), pp.54-60.

Google Scholar