Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
Experimental Study about the Performance of the Piezoelectric Friction Damper
p.2969
Experimental Study of Buckling-Restrained Brace System with Pall-Typed Frictional Damper
p.2973
Numerical Analysis and Performance Test of Bidirectional Piezoelectric Control Device
p.2977
Static Finite Element Model Updating for Special-Shaped Bridge Based on Uniform Design Method
p.2983
Optimal Design of Microseismic Monitoring Networking and Error Analysis of Seismic Source Location for Rock Slope
p.2991
Research on the Evaluation of the Tunnel Leakage Classification Based on BP Artificial Network
p.3000
Comprehensive Evaluation of In-Service RC Flexural Member′s Reliability Based on Attribute Mathematics
p.3009
The Pile Bearing Capacity Analysis Based on ANSYS and Reliability Analysis
p.3015
Study on Reliability of Jacket Offshore Platform by Seismic Action Based on ANSYS
p.3023

Optimal Design of Microseismic Monitoring Networking and Error Analysis of Seismic Source Location for Rock Slope

Article Preview

Abstract:

For the purpose of getting a better understanding of failure mechanisms of rock fracturing due to construction perturbation inside the right rock slope of Dagangshan Hydropower Staion, a high precision microseimic monitoring system was installed and preliminary source location data have been investigated. The optimal design of microseimic monitoring network, especially the sensor array was investigated based on P method and Powell algorithm. The positioning accuracy of the system has been adjusted according to artificial fixed blasting tests. The testing results show that microseismic source location error is less than 10 m in the scope of the sensor array, which demonstrates the monitoring system deployed at the right slope has a high positioning accuracy. Signals from 112 microseismic events with moment magnitude ranging from -1.8 to -0.4 were recorded during its 2-month monitoring period. The cluster distribution of microseismic events can reflect directly the construction progresses such as the concentration of microseismicity inside the drainage tunnel at 1081 m level. The present study have significantly improved the understanding of the characteristics of the failure associated with excavation inside the rock slope, and will greatly benefit the potential sliding areas prediction and support of hazards in the phase of construction in future.

You might also be interested in these eBooks
Advances in Structures View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 163-167)

Pages:

2991-2999

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.163-167.2991

Citation:

Cite this paper

Online since:

December 2010

Authors:

Nu Wen Xu, Chu Nan Tang, Si Hao Wu, Gui Lin Li, Ju Ying Yang

Keywords:

Microseismic Monitoring, Optimization Design, Rock Slope, Source Location Error

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] M. Cai, P.K. Kaiser and C.D. Martin: Int J Rock Mech and Min Sci. Vol. 38 (2001), p.1135.

Google Scholar

[2] C.C. Graham, S. Stanchits, I. G. Main and G. Dresen: Int J Rock Mech and Min Sci. Vol. 47(2010), p.166.

Google Scholar

[3] N.W. Xu, C.A. Tang, C. Sha, Z.Z. Liang, J.Y. Yang and Y.Y. Zou: Chinese J Rock Mech and Eng. Vol. 29(2010), p.915 (in Chinese).

Google Scholar

[4] C.X. Yang, Z.Q. Luo, G.B. Hu and X.M. Liu: J Uni Sci and Tech Beijing. Vol. 14(2007), p.6.

Google Scholar

[5] M.C. Ge: Int J Coal Geology, Vol. 64 (2005), p.44.

Google Scholar

[6] T.I. Urbancic, C.I. Trifu: J Applied Geophysics, Vol. 45(2000), p.229.

Google Scholar

[7] S. Baisch, R. Voros, E. Rothert, H. Stang, R. Jung, R. Schellschmidt: Int J Rock Mech and Min Sci, Vol. 47(2010), p.408.

Google Scholar

[8] F. H. Cornet (Ed. ): Special Issue: Induced Seismicity: Int J Rock Mech and Min Sci, vol. 44(2007), p.1079.

Google Scholar

[9] A. Jupe, R. Jone, S. Wilson, J. Cowles: Proceedings of 2000 Society of Petroleum Engineers Annual Technical Conference and Exhibition, Dallas, Texas (2000).

Google Scholar

[10] A. Hirata, Y. Kameokay and T. Hirano: Rock Mech and Rock Eng. Vol. 40(2007), p.566.

Google Scholar

[11] T. Li, M. F. Cai and M. Cai: Int J Rock Mech and Min Sci. Vol. 47(2007), p.1153.

Google Scholar

[12] S.L. Li: Chinese J Underground Space and Engineering. Vol. 5(2009), p.124 (in Chinese).

Google Scholar

[13] C.A. Tang: Proceedings of seventh International symposium on Rockburst and Seismicity in mines (RaSiM7), edited by C.A. Tang, Rinton Press, Dalian, China (2009).

Google Scholar

[14] Information on http: /www. mechsoft. cn.

Google Scholar

[15] HydroChina Chengdu Engineering Corporation: Feasibility study report on Dagangshan Hydropower Station at Dadu River, Sichuan Province (printed by HydroChina Chengdu Engineering Corporation, China 2006) (in Chinese).

Google Scholar

[16] S.L. Li, X.G. Yin and W.D. Zheng: Chinese J Rock Mech and Eng. Vol. 24(2005), p.2054 (in Chinese).

Google Scholar

[17] Z.L. Mu, L.M. Dou, S.Y. Gong and A.Y. Cao: Coal mining Tech. Vol. 14(2009), p.9(in Chinese).

Google Scholar

[18] ESG Co.: ESG Solutions-user's Guide (printed by ESG Co., Canada 2002).

Google Scholar

[19] Z.G. Yang, R.C. Yu and R. Guo: Chinese J Rock Mech and Eng. Vol. 27(2008), p.1068 (in Chinese).

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved