Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
권호 표지

Nonlinearly Distributed Active Earth Pressure on n Translating Rigid Retaining Wall : I. Formulation

평행이동하는 강성옹벽에 작용하는 비선형 주동토압 : I. 정식화

  • 백규호 (관동대학교 공과대학 토목공학과)
  • Published : 2003.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

The active earth pressure against a rigid retaining wall has been generally calculated using either Rankine's or Coulomb's formulation. Both assume that the distribution of active earth pressure exerted against the wall is triangular. However, many experimental results show that the distribution of the active earth pressure on a rigid rough wall is nonlinear. These results do not agree with the assumption used in both Rankine's and Coulomb's theories. The nonlinearity of the active earth pressure distribution results from arching effects in the backfill. Several researchers have attempted to estimate the active earth pressure on a rigid retaining wall, considering arching effect in the backfill. Their equations, however, have some limitations. In this paper, a new formulation for calculating the active earth pressure on a rough rigid retaining wall undergoing horizontal translation is proposed. It takes into account the arching effects that occur in the backfill.

일반적으로 강성 옹벽에 작용하는 주동토압은 Rankine이나 Coulomb의 토압이론에 의하여 계산되며, 이들 이론에서는 옹벽에 작용하는 주동토압이 삼각형으로 분포한다고 가정한다. 그러나 많은 실험결과들은 벽면이 거친 강성 벽체에 작용하는 주동토압은 Rankine과 Coulomb 이론에서 사용된 가정과는 달리 비선형으로 분포한다는 것을 보이고 있다. 그리고 이러한 비선형의 토압분포는 옹벽의 뒷채움재에서 발생하는 아칭효과 때문으로 알려져 있다. 몇몇 연구자들은 강성벽체의 뒷채움재에 발생하는 아칭효과를 고려한 주동토압 산정식을 제안하였다. 그러나 이들 제안식들은 몇가지 점에서 문제점을 갖고 있다. 따라서 본 연구에서는 평행이동하는 강성벽체에 작용하는 주동토압의 크기와 비선형 분포를 정확히 예측할 수 있는 새로운 토압산정식을 제안하였으며, 이 제안식에서는 뒷채움재에서 발생하는 아칭효과의 영향이 고려되었다.

Keywords

References

  1. J. of Geotech. Engrg. v.112 no.3 Static earth pressures with various wall movements Fang, Y.;Ishibash, I. https://doi.org/10.1061/(ASCE)0733-9410(1986)112:3(317)
  2. J. of Geotech. Engrg. v.111 no.3 The arch in soil arching Handy, R. L. https://doi.org/10.1061/(ASCE)0733-9410(1985)111:3(302)
  3. J. of Geotech. Engrg. v.115 no.9 Geostatic wall pressures Harrop-Williams, K. O. https://doi.org/10.1061/(ASCE)0733-9410(1989)115:9(1321)
  4. Zeitschrift v.39 Versuche uber getreidedruck in silozellen Janssen, H. A.
  5. Proc. of the Symp. on Rock Mechanics v.76 The natural arch, the fracture pattern, and the sequence of failure in massive rock surrounding an underground opening Livingston, C. W.
  6. Soils and Foundations v.18 no.3 Experimental study on earth pressure of retaining wall by field tests Matsuo, M.;Kenmochi, S.;Yagi, H. https://doi.org/10.3208/sandf1972.18.3_27
  7. Ph. D. Thesis, Dept. of Civil Engrg., M.I.T. A static evaluation of soil plug behavior with application to the pile plugging problem Paikowsky, S. G.
  8. Soil engoneering, Haper and Row Spangler, M. G.;Handy, R. L.
  9. Theoretical soil mechanics Terzaghi, K.
  10. J. Soil Mech. and Found. Engrg. v.91 no.4 Experimental investigation of the pressure of a loose medium on retaining walls with a vertical face and horizontal backfill surface Rsagareli, Z. V.
  11. Chemical Engrg. Science v.21 An approximate theory for pressure and arching in hoppers Walker, D. M. https://doi.org/10.1016/0009-2509(66)85095-9
  12. Geotechnique v.50 no.1 Distribution of earth pressure on a retaining wall Wang, Y. Z. https://doi.org/10.1680/geot.2000.50.1.83