Geomechanics and Engineering

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Experimental and numerical study on behavior of retaining structure with limited soil

  • Jin, Hongliu (State Key Laboratory of Hydroscience and Engineering, Tsinghua University) ;
  • Zhang, Ga (State Key Laboratory of Hydroscience and Engineering, Tsinghua University) ;
  • Yang, Yusheng (China Institute of Water Resources and Hydropower Research)
  • Received : 2019.11.07
  • Accepted : 2021.06.25
  • Published : 2021.07.10
⟨ Previous Next ⟩

Abstract

With the development of city construction, the situations of foundation pit excavations adjacent to an existing structure occur more frequently. A series of centrifuge model tests and numerical analyses considering actual excavation process were performed to study the deformation and earth pressure of retaining wall, deformation characteristics of retained soil with various limited soil widths. The horizontal displacement and bending moment of the retaining wall decrease with decreasing limited soil width while the rate of the decrease increases with decreasing limited soil width. The horizontal displacement of the retained soil decreases with decreasing limited soil width while the settlement of the retained soil increases with increasing limited soil width. The deformation zone is almost triangular for unlimited condition and trapezoidal for limited condition. As the limited soil width decreases, the deformation zone shrinks and the inclination of deformation zone increases. The lateral earth pressure on the retaining wall shows two-segment distribution and decreases with decreasing limited soil width. The vertical earth pressure shows non-uniform distribution along width and decreases with decreasing limited soil width due to increasing arching effect. The critical width is much smaller than excavation influence width. This may be explained by the fact that only the deformation of soil within critical width will influence the soil near the wall.

Keywords

Acknowledgement

The study is supported by Open Research Fund Program of State key Laboratory of Hydroscience and Engineering (sklhse-2021-D-04), Tsinghua University Initiative Scientific Research Program, and National Natural Science Foundation of China (52039005).

References

  1. Altunbas, A., Soltanbeigi, B. and Cinicioglu, O. (2017), "Determination of active failure surface geometry for cohesionless backfills", Geomech. Eng., 12(6), 983-1001. https://doi.org/10.12989/gae.2017.12.6.983.
  2. Blight, G.E. (1986), "Pressure exerted by materials stored in silos: Part I, coarse materials", Geotechnique, 36(1), 33-46. https://doi.org/10.1680/geot.1986.36.1.33.
  3. Coulomb, C.A. (1776), "An attempt to apply the rules of maxima and minima to several problems of stability related to architecture", Mem. Acad. Roy. des Science, 7, 343-382.
  4. Fan, C.C. and Fang, Y.S. (2010), "Numerical solution of active earth pressures on rigid retaining walls built near rock faces", Comput. Geotech., 37, 1023-1029. https://doi.org/10.1016/j.compgeo.2010.08.004.
  5. Fang, Y.S. and Ishibashi, I. (1986), "Static earth pressures with various wall movements", J. Geotech. Eng., 112(3), 317-333. https://doi.org/10.1061/(ASCE)0733-9410(1986)112:3(317).
  6. Frydman, S.F. and Keissar, I. (1987), "Earth pressure on retaining walls near rock faces", J. Geotech. Eng., 113(6), 586-599. https://doi.org/10.1061/(ASCE)0733-9410(1986)112:3(317).
  7. Gezgin, A.T. and Cinicioglu, O. (2019), "Consideration of locked-in stresses during backfill preparation", Geomech. Eng., 18(3), 247-258. https://doi.org/10.12989/gae.2019.18.3.247.
  8. Handy, R.L. (1985), "The arch in soil arching", J. Geotech. Eng., 111(3), 302-318. https://doi.org/10.1061/(ASCE)0733-9410(1985)111:3(302).
  9. Harrop-Williams, K.O. (1989), "Geostatic wall pressures", J. Geotech. Eng., 115(9), 1321-1325. https://doi.org/10.1061/(ASCE)0733-9410(1989)115:9(1321).
  10. Hossain, M.S., Kibria, G., Khan, M.S., Hossain, J. and Taufiq, T. (2012), "Effect of backfill soil on excessive movement of MSE wall", J. Perform. Constr. Fac., 26(6), 793-802. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000281.
  11. Janssen, H.A. (1895), "Versuche uber getreideedruck in silozellen", Z. Ver. Dtsch. Ing., 39, 1045-1049.
  12. Jaouhar, E.M., Li, L., and Aubertin, M. (2018), "An analytical solution for estimating the stresses in vertical backfilled stopes based on a circular arc distribution", Geomech. Eng., 15(3), 889-898. https://doi.org/10.12989/gae.2018.15.3.889.
  13. Jarrett, N.D., Brown, C.J. and Moore, D.B. (1995), "Pressure measurements in a rectangular silo", Geotechnique, 45(1), 95-104. https://doi.org/10.1680/geot.1995.45.1.95.
  14. Khosravi, M.H., Pipatpongsa, T. and Takemura, J. (2013), "Experimental analysis of earth pressure against rigid retaining walls under translation mode", Geotechnique, 63(12), 1020-1028. https://doi.org/10.1680/geot.12.P.021.
  15. Li, L. and Aubertin, M. (2015), "Numerical analysis of the stress distribution in symmetrical backfilled trenches with inclined walls", Ind. Geotech. J., 45(3), 278-290. https://doi.org/10.1007/s40098-014-0131-5.
  16. Paik, K.H. and Salgado, R. (2003), "Estimation of active earth pressure against rigid retaining walls considering arching effects", Geotechnique, 53(7), 643-653. https://doi.org/10.1680/geot.2003.53.7.643.
  17. Peng, M.X. and Chen, J. (2013), "Slip-line solution to active earth pressure on retaining walls", Geotechnique, 63(12), 1008-1019. https://doi.org/10.1680/geot.11.P.135.
  18. Pirapakaran, K., and Sivakugan, N. (2007), "Arching within hydraulic fill stopes", Geotech. Geol. Eng., 25(1), 25-35. https://doi.org/10.1007/s10706-006-0003-6.
  19. Rankine, W.J.M. (1857), "On the stability of loose earth", Philos. T. Royal Soc. London, 147, 9-27. https://doi.org/10.1098/rstl.1857.0003.
  20. Shen, Y.J., Wu, Z.J., Xiang, Z.L., Yang, M. (2017), "Physical test study on double-row long-short composite anti-sliding piles", Geomech. Eng., 13(4), 621-640. https://doi.org/10.12989/gae.2017.13.4.621.
  21. Sivakugan, N. and Widisinghe, S. (2013), "Stresses within granular materials contained between vertical walls", Ind. Geotech. J., 43(1), 30-38. https://doi.org/10.1007/s40098-012-0029-z.
  22. Spangler, M.G., Handy, R.L (1984), Soil Engineering, Harperand Row, New York, U.S.A.
  23. Take, W.A., and Valsangkar, A.J. (2001), "Earth pressures on unyielding retaining walls of narrow backfill width", Can. Geotech. J., 38(6), 1220-1230. https://doi.org/10.1139/t01-063.
  24. Yang, K.H., and Liu, C.A. (2007), "Finite element analysis of earth pressures for narrow retaining walls", J. GeoEng., 2(2), 43-52.
  25. Zhang, D.B., Jiang, Y. and Yang, X.L. (2019), "Estimation of 3D active earth pressure under nonlinear strength condition", Geomech. Eng., 17(6), 515-525. https://doi.org/10.12989/gae.2019.17.6.515.
  26. Zhang, G., Hu, Y. and Zhang, J.M. (2009), "New image analysis-based displacement-measurement system for geotechnical centrifuge modeling tests", Measurement, 42(1), 87-96. https://doi.org/10.1016/j.measurement.2008.04.002
  27. Zhang, G. and Yan, G.C. (2016), "In-flight simulation of the excavation of foundation pit in centrifuge model tests", Geotech. Testing. J., 39(1), 59-68.
  28. Zucca, M. and Valente, M. (2020), "On the limitations of decoupled approach for the seismic behaviour evaluation of shallow multi-propped underground structures embedded in granular soils", Eng. Struct., 211, 1-15. https://doi.org/10.1016/j.engstruct.2020.110497.