Design and analysis of single piles under lateral loads in cohesionless soils based on the standard penetration test (SPT)

Abstract

Abstract. The Standard Penetration Test (SPT) is nowadays widely used in geotechnical projects to characterize cohesionless soils due to its simplicity and cost effectiveness. This test is appropriate to estimate the resistance and density of cohesionless soils and is largely practised in the Arabian Gulf region within the scope of foundation projects. Since this test was internationally standardized, it may be considered as a practical tool of soil characterization as well as of pile foundation design. This paper is aimed at presenting a practical method of constructing the P-Y curves on the basis of the SPT test derived from a thorough analysis of a worldwide database of pile loading tests in sandy soils. The two main parameters of the P-Y curve, namely the lateral subgrade reaction modulus and the lateral soil resistance, were correlated by a back-analysis procedure to the Nspt.

Evaluation of lateral capacity for flexible drilled shafts in cohesionless soils

“…3 – 7 With regard to lateral loads, the design criteria limit pile deflections and stresses to within tolerable values. 8 The lateral behavior of piles has also been extensively studied, 9 – 19 and various methods, such as finite element 20 , 21 and p–y curve, 22 , 23 are available for analyzing the pile response under lateral loading.…”