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Experimental and Numerical Investigation of Strip Footing Behavior on Sand with a Weak Layer of Varying Thicknesses and Overburden Loads

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Abstract

The behavior of strip footings under varying soil conditions is a crucial research area in foundation engineering. In this study, the effect of weak layers on the bearing capacity of strip footings resting on a layered soil mass was investigated through small-scale model tests. The experimental program consisted of laboratory tests performed on a rigid strip footing situated on a sand mass foundation. The results indicated that even a thin weak layer can significantly decrease the ultimate bearing capacity of the soil-foundation system. The extent of this effect was shown to be dependent on the thickness of the weak layer. Asymmetrical overburden loading were also found to be a critical factor in achieving the ultimate bearing capacity of the foundations.

The primary aim of this research was to evaluate the general behavioral pattern of strip footings resting on sand masses with weak layers and to quantify the effect of various parameters on the ultimate bearing capacity. The comparison of experimental with numerical and analytical analysis results confirmed the similar trends of these two methods under different conditions of the model tests. The results suggest that by increasing the overburden amount, the bearing capacity of the foundation can be improved.

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Abbreviations

B :

Footing width

c ' :

Cohesion

C c :

Coefficient of curvature

C u :

Uniformity coefficient

D max :

Maximum grain size

D f :

Embedment depth of foundation

D r :

Relative density

D 10 :

Effective grain size

D 50 :

Average grain size

G s :

Specific gravity

N γ , N q :

Bearing capacity factors

q’ :

Overburden

q ult :

Ultimate bearing capacity of uniform sand

q u :

Ultimate bearing capacity of foundation

Z i :

Depth from the ground surface of thin layer

t i :

Thickness of thin layer

γ :

Unit weight

γ d :

Dry unit weight

γ dm ax :

Maximum dry unit weight

γ dmin :

Minimum dry unit weight

\(\varphi\)′:

Angle of internal friction

τ :

Shear stress

σ n :

Normal stress

σ v :

Vertical stress

References

  • Bandini P, Pham T (2011) Shallow foundations on layered soil with soft layer: a parametric study. Int J Geomech 11(5):399–411

    Google Scholar 

  • Bayat M et al (2015) Bearing capacity of strip footings on layered soil with weak layer using numerical and analytical methods. Comput Geotech 69:32–42

    Google Scholar 

  • Bildik A, Laman M (2015) Effect of loading rate on bearing capacity of spread footings on sand. Electron J Geotech Eng 20(17):9337–9346

    Google Scholar 

  • Bolton MD, Lau CK (1989) The strength and dilatancy of sands. Geotechnique 39(4):601–616

    Google Scholar 

  • Eshkevari SS, Abbo AJ, Kouretzis G (2019) Bearing capacity of strip footings on layered sands. Comput Geotech 114:103101

    Article  Google Scholar 

  • Ghaneeizad SM et al (2016) Experimental and numerical study of the effect of weak layer on bearing capacity of strip footing on sand. Geomech Eng 11(3):425–442

    Google Scholar 

  • Hanna A, Farah CA, Abdel-Rahman M (2020) Shallow foundations resting on strong sand overlaying weak sand. J Eng Appl Sci 67(6):1399–1414

    Google Scholar 

  • Hansen JB (1961) A general formula for bearing capacity. Bulletin No. 11, Danish Geotechnical Institute, Copenhagen

  • Hansen JB (1970) Bearing capacity and settlement of pile foundations. Bulletin No. 24, Danish Geotechnical Institute

  • Kumar S et al (2019) Effect of soil layering on bearing capacity of strip footing using finite element method. J Rock Mech Geotech Eng 11(1):67–76

    Google Scholar 

  • Look BG (2007) Handbook of geotechnical investigation and design tables. Taylor & Francis, London

    Book  Google Scholar 

  • Masayuki H, Shunsuke T, Akihiko I (2017) Effect of fines on compression behavior of poorly graded sand. Soils Found 57(6):1016–1025

    Google Scholar 

  • Merifield RS, Nguyen QP (2006) Bearing capacity of strip footings on a two-layer soil system. Can Geotech J 43(8):865–875

    Google Scholar 

  • Meyerhof GG (1951) The ultimate bearing capacity of foundations. Geotechnique 2:301–332

    Article  Google Scholar 

  • Meyerhof GG (1963) Some recent research on the bearing capacity of foundations. Can Geotech J 1(1):16–26

    Article  Google Scholar 

  • Peng MX, Peng HX (2019) The ultimate bearing capacity of shallow strip footings using slip-line method. Soils Found 59(3):601–616

    Article  Google Scholar 

  • Prandtl L (1920) Über die Härte plastischer Körper. Nachr kgl Ges Wiss Göttingen Math Phys Klasse

  • Prat M, Bisch PH, Millard A, Mestat P, Pijaudier-Calot G (1995). La modélisation des ouvrages

  • Sharma K, Deng L (2017) Field investigation of rocking shallow foundations on cohesive soil subjected to lateral cyclic loads. In: Proceedings of GeoOttawa 2017

  • Taylor RN (1995) An overview of the shear strength of soils. Géotechnique 45(2):249–322

    Google Scholar 

  • Terzaghi K (1943) Theoretical soil mechanics. John Wiley & Sons, New York/London

    Book  Google Scholar 

  • Toyosawa Y, Takada N, Ichikawa Y, Nakamura K (2013) Effects of fine contents and void ratio on deformation and failure behavior of sand. Soils Found 53(4):459–473

    Google Scholar 

  • Ullah SN, Stanier S, Hu Y, White D (2017) Foundation punch-through in clay with sand: analytical modelling. Géotechnique 67(8):672–690

    Article  Google Scholar 

  • Vesic AS (1973) Analysis of ultimate loads of shallow foundations. J Soil Mech Found Div 99(10):853–867

    Google Scholar 

  • Wang Y, Zhang H, Huang L, Zhu Y (2018) Bearing capacity of strip footing on sand with interbedded clay layer. Geotech Geol Eng 36(4):2303–2314

    Google Scholar 

  • Wu L, Lu Z, Ma W, He X (2019) Numerical investigation on the effect of weak soil layers and inclined strata on bearing capacity of strip footing. Comput Geotech 108:57–69

    Google Scholar 

  • Xiao J, Yan S, Jiang S (2020) Numerical and experimental study on bearing capacity of shallow strip footings on layered soils with weak interlayer. Geomech Eng 20(5):455–466

    Google Scholar 

  • Yildiz Y, Guzel E (2018) Prediction of the bearing capacity of strip footing on weak soil layer using artificial neural network. Arab J Geosci 11(11):280

    Google Scholar 

  • Zhang S, Hu L, Wang X, Zhao D (2019) Numerical simulation on hydraulic fracturing effect of weak interlayer on bearing capacity of strip footing. J Geotech Geoenviron Eng 145(1):04018100

    Google Scholar 

  • Zhou X, Chen Y, Wang C (2019) Experimental study on bearing capacity of strip footing on layered soil with weak layer. J Test Eval 47(3):20170561

    Google Scholar 

  • Zhu HH (2004) Bearing capacity factors for shallow foundations on layered soils. Can Geotech J 41(5):809–822

    Google Scholar 

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Authors and Affiliations

  1. Department of Civil Engineering, Science And Research Branch, Islamic Azad University, Tehran, Iran

    Mehrshad Hosseini Fani, Ahad Bagherzadeh Khalkhali & Navid Ganjian

Authors
  1. Mehrshad Hosseini Fani
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  2. Ahad Bagherzadeh Khalkhali
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  3. Navid Ganjian
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Correspondence to Ahad Bagherzadeh Khalkhali.

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Hosseini Fani, M., Bagherzadeh Khalkhali, A. & Ganjian, N. Experimental and Numerical Investigation of Strip Footing Behavior on Sand with a Weak Layer of Varying Thicknesses and Overburden Loads. Iran J Sci Technol Trans Civ Eng (2024). https://doi.org/10.1007/s40996-024-01417-6

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