Behaviour of Lateral Resistance of Flexible Piles in Layered Soils

Abstract

Behaviour Of Lateral Resistance Of Flexible Piles In Layered Soils paper presents an experimental investigation on the lateral load carrying capacity of model piles of different flexural stiffness embedded in loose sand between dense sand and dense sand between loose sand layered soil strata. Attempts has been made to study the variation of lateral stiffness, eccentricity and soil layer thickness ratio and the effect of various parameters on the magnitude of Nh.

The result of a model tested for the piles embedded in IS grade-II dry Ennore sand under monotonic lateral loadings. Experimental results are used for the load-deflection curves (p-y curves) for laterally loaded piles. The proposed p-y curves were compared to the existing curves with Nh and were evaluated with the experimental data.

Conclusion

The following conclusions are made based on the experimental investigations.

• The ultimate lateral resistance of single pile decreases with the increase in eccentricity of load, it is about 8 to 11%.
• The ultimate resistance of single pile subjected to horizontal load decreases with increase in eccentricity of load on the same pile provided the depth of embedment remains constant for homogeneous loose and dense layers, also loose between dense and dense between loose layered soils, and it is about 10 to 12%.