DOI QR코드

DOI QR Code

Analysis and design of inclined piles used to prevent downhill creep of unsaturated clay formations

  • Poorooshasb, H.B. (Civil Engineering, Concordia University) ;
  • Miura, N. (Institute of Lowland Technology, Saga University) ;
  • Noorzad, Ali (Concordia University)
  • Published : 1998.04.25

Abstract

This paper present an analysis which may be used to obtain a rational design of a system of inclined piles used in preventing downhill creep of unsaturated clay formations. It uses two simple and relatively easy to measure parameters (an estimate of the maximum downhill creep together with a knowledge of the depth of the so called active zone) to calculate the required section size and the optimal spacing (pitch) of the piles for a desired efficiency of the system as a whole. Design charts are provided to facilitate the process.

Keywords

References

  1. Fukuoka, M. (1977), "The effect of horizontal loads on piles due to landslides", Proc. 9th ICOSMFE, Tokyo, Spec. Session 10.
  2. Gassler, G. (1990), "In-situ technique for reinforced soil. State of the art lecture", Proc. Int. Reinforced Soil Con., Glasgow, Scotland, 185-196, Thomas Telford, London.
  3. Gudehus, G. and Schwarz, W. (1981), "Stabilization of creeping slopes by dowels", Proc. 11th ICOSMFE, 3, 1697-1700.
  4. Ito, T. and Matsui, T. (1975), "Methods to estimate lateral forces on stabilizing piles", Soil and Foundations, 15(4), 45-59. https://doi.org/10.3208/sandf1972.15.45
  5. Pearlman, S.L., Campbell, B.D. and William, J.L. (1992), "Slope stabilization using in-situ earth reinforcement", Proc. ASCE Conf. on Stability and performance of slopes and embankments-A 25 year perspective, The University of California, 1333-1348.
  6. Poorooshasb, H.B. Azevedo, R. and Ghavami, K. (1980), "Analysis of slopes with bamboo dowels", Proc. Intl. Geotch. Symp.,Theory and Practice of Earth Reinforcement, Fukuoka, Japan, Yamanouchi, Miura and Ochiai, pp. 467-472.
  7. Poorooshasb, H.B., Alamgir, M. and Miura, N. (1996), "Application of an integro-differential equation to the solution of geotechnical problems", to appear in the journal Structural Engineering and Mechanics.
  8. Poorooshasb, H.B., Miura, N. and Alamgir, M. (1996), "Refinement of a numerical technique for solution of geotechnical problems", 3rd Asian-Pacific Conference on Computational Mechanics, 16-18 September 1996, Seoul, Korea.
  9. Reese, L.C., Wang, S.T. and Fouse, J.L. (1992), "Use of drilled shafts in stabilizing a slope", Proc. ASCE Conf. on Stability and performance of slopes and embankments-A 25 year perspective, The University of California, 1318-1332.
  10. Viggianti, C. (1981), "Ultimate lateral load on piles used to stabilize landslides", Proc. 10th ICOSMFE, Stockholm, 555-560.
  11. Wang, W.L. and Yen, B.C. (1974), "Soil arching in slopes", ASCE J. GE Div., 100, GTI, Jan. 1974