Geotechnical Engineering (한국지반공학회지:지반)

Korean Geotechnical Society (한국지반공학회)
권호 표지

An Analysis of Debris Flow Movements Using Rheological Model

레올로지 모델을 이용한 토석류 이동해석

  • 김상규 (정회원, 동국대학교 공과대학 토목공학과) ;
  • 서흥석 (정회원, 영동전문대학 토목과)
  • Published : 1997.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

It was proved from the viscosity test for deposits of debris flows(Kim and Seo, 1997) that the property of debris flows could be represented as Bingham plastic model. Based on this bahavior, numerical analysis for the movement of debris flows is carried out by using a computer progran Polyflow which huts been developed for the analysis of the behavior of non-Newtonian fluid. The numerical results obtained from two sites agree well with the movement predicted by an empirical formula. It can be concluded, therefore. that this scheme can be used for the analysis of the movement of debris flow.

기존에 발생된 토석류 퇴적물에 대한 점도실험으로북터 세립질의 성질이 빙함 소성(Bingham plastic) 모델로 표현될 수 있다는 사실이 판명되었다. 이러한 사실과 비뉴톤유체의 흐름을 해석 할 수 있도록 개발된 수치해석 프로그램 Polyflow를 이용하여 토석류의 이동을 해석하였다. 그 결과 실제와 유사한 이동결과가 얻어졌으므로 토석류의 이동은 이와 같은 기법으로 해석할 수 있다는 것을 알게 되었다.

Keywords

References

  1. 토석류 이동의 레올로지적 특성 v.13 no.5 김상규;서홍석
  2. 동국대학교, 공학박사학위 논문 토석류의 이동과 퇴적에 관한 연구 서홍석
  3. Ph. D. Thesis, Montana State University A biviscous modified Bingham model of snow avalanche motion Dent, J.D.
  4. The NWS DAMBRK model: theoretical background and user documentation Fread, D.L.
  5. Proceedings of Ninth International Conference on Soil Mechanics and Foundation Engineering v.2 Kinetic friction in Landsliders Fukoka, M.;Yoshida, Y.;Masuda, T.
  6. Bergsturz und Menschenleben Heim, A.
  7. Geotechnique v.34 no.3 High velocity ring shear tests on sand Hunger, O.;Morgenstern, N.
  8. Canadian Geotechnical Journal v.23 A sliding consolidation model for flow slides Hutchinson, J.N.
  9. Ph.D. Thesis, University of California Analysis of flow failures of mine tailings impoundments Jeyapalan, K.
  10. Slope Instability Debris flow Johnson, A.M.;Rodine, J.R.;Brunsden, D.(ed.);Prior, D.B.(ed.)
  11. Proceedings of the U.S. Japan Seminar on Contimuum Mechanical and and Statical Approaches in the Mechanics of Granular Materials A model for stresses in shear flow of granular materials McTigue, D.F.;Cowin, S.C.(ed.);Satake, M.(ed.)
  12. Proceedings of China-Japan Field Workshop on Landslides Geomorphological prediction of the travel distance of a debris Moriwaki, H.
  13. User's Manual Polyflow
  14. Special lecture, 5th International Symposium on Landslides, Landslides v.1 Geotechnical model for the motion of landslides Sassa, K.
  15. Geotechnique v.41 no.4 Continuum simulation of flow failures Sousa, J.;Voight, B.
  16. US Geological Survey Water Supply Paper 757C Flood in La Canada Valley Troxell, H.C.;Peterson, J.Q.