Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
권호 표지
DOI QR코드

DOI QR Code

Development of a New Software to Analyze Displacement and Predict Failure Time of the Rock Slope

암반사면 변위자료 분석 및 파괴시간 예측 소프트웨어 개발

  • 노영환 (부경대학교 환경해양대학 에너지자원공학과) ;
  • 엄정기 (부경대학교 에너지자원공학과)
  • Received : 2015.02.09
  • Accepted : 2015.02.24
  • Published : 2015.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

We have developed a software to predict failure time of the rock slope based on analysis of the data from real time displacement measurements with respect to time. The software consists of four modules that play roles in analytical methods such as inverse velocity method, log time-log velocity method, log velocity-log acceleration method and nonlinear least square method to estimate failure time. VisualBasic.NET on the MS Visual Studio platform was utilized as a development tool to efficiently implement the modules and the graphical user interface of the software. Displacement data obtained from laboratory physical model studies of plane sliding were used to explore the applicability of the software, and to evaluate the possibility of predicting potential slope failure. It seems possible to estimate failure time using developed software for sliding plane having exponential type of deformability.

본 연구에서는 암반사면에서 실시간으로 측정된 시간에 대한 변위 자료를 분석하여 암반사면의 잠재적인 파괴시간을 예측하는 소프트웨어를 개발하였다. 소프트웨어는 파괴시간을 추정하기 위한 역속도법, 로그시간-로그속도법, 로그속도-로그가속도법, 비선형최소자승법을 적용하는 네 가지 모듈로 구성되었다. 소프트웨어는 해석모듈 및 GUI의 효율적인 구현을 위하여 VisualBasic.NET 언어를 이용하여 MS Visual Studio 플랫폼에서 제작되었다. 소프트웨어의 기능 및 성능은 기존의 실내 모형사면 실험으로 얻은 변위자료를 사용하여 검토되었으며 지수형 거동을 보이는 활동면에서 실제 파괴시간과 유사한 파괴시간을 예측하였음을 확인하였다.

Keywords

References

  1. Cornelius, R.R. and Voight, B., 1995, Graphical and PCsoftware analysis of volcano eruption precursors according to the materials failure forecast method(FFM), J. Volcanol. Geotherm. Res. 64, 295-320. https://doi.org/10.1016/0377-0273(94)00078-U
  2. Fukuzono, T., 1985, A new method for predicting the failure time of a slope, In proceedings of the fourth international conference and field workshop on landslides, Japan Landslide Society, Tokyo, 145-150.
  3. Fukuzono, T., 1990, Recent studies on time prediction of slope failure, Landslide News 4, 9-12.
  4. Haefeli, R., 1953, Creep problems in soils, snow and ice. Proc. 3rd Int. Conf. Soil Mech. Found Eng., Vol. 3, 238-251.
  5. Hendron, A.J., and Patton, F.D., 1985, A geotechnical analysis based on new geologic observations of the failure surface, The Vaiont Slide, US Army Corps. of Engineers, Washington, D. C., 104.
  6. Kodama, J., Nishiyama, E., and Kaneko, K., 2008, Measurement and interpretation of long-term deformation of a rock slope at the Ikura limestone quarry, Japan, International Journal of Rock Mechanics and Mining Sciences, Vol. 46, No.1, 148-158. https://doi.org/10.1016/j.ijrmms.2008.07.013
  7. Martin D.C., 1993, Time dependent deformation of rock slopes. PhD thesis, University of London.
  8. Muller, L., 1964, The rock slide in the Vajont valley, Felsmechanik und Ingenieurgeologie Vol. 2, 148-212.
  9. Saito, M., Uezawa, H., 1961, Failure of soil due to creep.Proc. 6th ICSMFE, Vol. 1, 315-318.
  10. Saito, M., 1965, Forecasting the time of occurrence of a slope failure. Proc. 6th ICSMFE, Vol. 2, 537-539.
  11. Saito. M., 1969, Forecasting time of slope failure by Tertiary creep. Proc. 7th ICSMFE, Vol. 2, 677-683.
  12. Sousa, J., 1996, Nonlinear regression modelling and forecasting of accelerating slope deformation, Ph. D.Dissertation, The Pennsylvania State University, 1-58.
  13. T.C. Cho, S.Y. Park, S.B. Lee, G.H. Lee and K.S. Won, 2006, Monitoring of Cut-Slope Behavior with Consideration of Rock Structure and Failure Mode, TUNNEL & UNDERGROUND SPACE, Vol. 16, No. 6, 451-466.
  14. T.C. Cho, J.U. Suk, S.A. Lee, and J.G. Um, 2008, Investigation of Rock Slope Failures based on Physical Model Study, The Journal of Engineering Geology, Vol. 18, No. 4, 447-457.
  15. Terzaghi, K., 1950, Mechanisms of landslides. Applications of geology to engineering practice. Geol. Soc. Amer. Spec. Pub, Berkey, 83-123.
  16. Varnes, D.J., 1983, Time-deformation relations in creep to failure of earth materials. Proc. of 7th Southeast Asian Geotechnical Conference 2, 107-130.
  17. Voight, B., 1988, A method for prediction of volcanic eruptions. Nature Vol. 332, 125-130. https://doi.org/10.1038/332125a0
  18. Voight, B., 1989, A relation to describe rate-dependent material failure. Science, Vol. 24, No. 3, 200-203.
  19. Y.K. Yoon, B.C. Kim and Y.D. Jo, 2009, Failure Time Prediction by Nonlinear Least Square Method with Deformation Data, TUNNEL & UNDERGROUND SPACE, Vol. 19, No. 6, 558-566.
  20. Y.K. Yoon, Y.D. Jo, 2010, Prediction of Failure Time of Tunnel Applying the Curve Fitting Techniques, TUNNEL & UNDERGROUND SPACE, Vol. 20, No. 2, 97-104.
  21. Yoshida, T., Yachi, M., 1984, On the velocity of landslide in Japanese. Proceeding of 23rd Meeting of Japan Landslide Society, 136-139.
  22. Zavodni Z.M., and Broadbent C.D., 1980, Slope failure kinematics. Canadian Institute of Mining, Metal Petroleum (CIM) Bull,Vol. 73, No. 16, 69-74.
  23. Zavodni Z.M., 2000, Time-dependent movements of open-pit slopes. Slope stability in surface mining, Hustrulid A, Carter MK, Van Zyl DJA, editors. Society for Mining, Metallurgy, and Exploration, 81-88.