Slope Early Warning System Design and Preliminary Practice

Abstract:

Early warning thresholds for slope instability were discussed in this study by means of rheological tests and field measurements due to availability and effectiveness of the data. Five warning levels were specified to take proper measures in different emergent cases. The left bank slope of Jinping I hydropower station was studied as an instance to implement the strategies introduced in the study. The surface displacement thresholds were obtained by analyzing long-term observed displacements (the former three warning levels) and the rheological tests on the rock mass (the last two levels). The results gave out that the thresholds of surface displacement rate for different warning levels were 0.30mm/d, 1.15mm/d, 3.00mm/d and 5.00mm/d. These results could be potential references for other projects.

• Periodical: Applied Mechanics and Materials (Volumes 580-583)
• Pages: 481-485
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.580-583.481
• Online since: July 2014
• Authors: Fei Xu*, Wen Xiong Xu, Ke Wang
• Keywords: Early Warning Criterion, Slope early Warning System, Slope Stability, Warning Thresholds

References

[1] D.K. Keefer, R.C. Wilson, R.K. Mark: Science, Vol. 238(1987), pp.921-925.

[2] S.R. Wu, Y.M. Jin: Journal of Jilin University, Vol. 34(2004), pp.596-600. (In Chinese).

[3] Z. Liu, W. Xu, K. Zhang: Journal of Hohai University(Natural Sciences), Vol. 37(2009), pp.313-316. (In Chinese).

[4] D.N. Petley, F. Mantovani, M.H. Bulmer: Geomorphology, Vol. (2005), pp.133-147.

[5] Q. Xu, Y.P. Zeng: Chinese Journal of Rock Mechanics and Engineering, Vol. 28( 2009), pp.1099-1099. (In Chinese).

[6] S.W. Qi, F.Q. Wu, H.X. Lan: Chinese Journal of Geotechnical Engineering, Vol. 24(2002), pp.596-599.

[7] R.R. Cornelius, P.A. Scott: Rock Mechanics and Rock Engineering, Vol. 26(1993), pp.233-252.