Measured and Computed Lateral Response of a Pile Group in Sand

Modeling the lateral response of pile groups in cohesionless and cohesive soils

“…This type has additional intermediate row i.e. second row or intermediate row or middle row and/or 2nd trailing row [1,22,25,28,29,32]. It can be observed that the values in both first and second trailing row of the lateral pile displacement and lateral soil resistance are very close which were similarly observed by Zhang et al [32] and Rollins et al [28,29].…”

“…For the same magnitude of lateral load of 450 kN, group interaction obtained showed an increase in lateral pile displacement. This conclusion was also supported by Brown et al [5], and Rollins et al [20][21][22][23][24][25][26][27][28][29]. It can be seen that the pile spacing less than 6D resulted in a large lateral deflection of a pile group under applied load due to group high group interaction effect.…”

“…These close piles are usually fixed on the top and near to the ground surface by pile cap. The influence of a pile on the performance of an adjacent pile, termed pile-soil-pile interaction, can have significant effects [1,7,22,28,29,31,32]. However, in case of laterally performance closely spaced pile groups, the failure zones for both front and trailing rows piles are overlap with other leading row piles that usually decrease lateral resistance, as shown in Fig.…”

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

“…References [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] were used to build a medium sized database of pile loading tests. 44 loading tests were carried out in 15 sites where the SPT test was carried out within the scope of the geotechnical investigation.…”

Reducing Seismic Risk to Highway Mobility: Assessment and Design Examples for Pile Foundations Affected by Lateral Spreading

“…In addition, due to economic reasons, piles are usually constructed in groups and embedded in a reinforced concrete cap. Piles in a closely spaced group behave differently than single isolated piles because of pile-soil-pile interactions within the group (e.g., McVay et al 1994McVay et al , 1995McVay et al , 1998Remaud et al 1998;Rollins et al 2005a). In a pile group, an axially or laterally loaded pile generates its own displacement field, which interferes and overlaps with those of adjacent piles resulting in inefficiencies between piles within a group.…”