In many practical situations, structures subject to lateral loading are located near slopes. The presence of a slope on deep foundations loaded in a downslope direction can decrease the overall lat...

Influence of sloping ground on lateral load capacity of single piles in clayey soil

In this paper, the performance of a laterally loaded single pile located in a mountainside was predicted by a modified strain wedge (SW) technique and, in particular, the emphasis is on qu...

Behaviors of a Laterally Loaded Pile Located in a Mountainside

A series of field tests were conducted to examine the behavior of pile foundation subjected to adjacent surcharge loading in deep soft soils. The emphasis was on the pile deflection, bending moment, soil horizontal displacement and lateral earth pressure acting on the piles under different surcharge loading conditions. It was found that among the surcharge loading distance, intensity and width, the surcharge loading distance was the most significant factor affecting the adjacent piles in deep soft soils. The springback process of piles subjected to adjacent surcharge loading after unloading was a slow process changing with time. The mean lateral earth pressure on the pile facing the surcharge loading is slightly larger than that opposite to the surcharge loading. The pile bending moment and mean lateral earth pressure acting on the pile decrease with time due to the consolidation process of soft soil. 3D finite element model in ABAQUS is established to study the influence of consolidation process of soft soil on piles subject to adjacent surcharge loading.

Behavior of Piles Subjected to Surcharge Loading in Deep Soft Soils: Field Tests

Numerical study on deformation of diaphragm cut off walls under seepage forces in permeable soils

Nonlinear Analysis of Single Model Piles Subjected to Lateral Load in Sloping Ground

A detailed laboratory experimental model tests was undertaken to study the effect of slope on laterally load pile capacity and p–y curves. The paper concerns the method developed in a series of laboratory model tests (27 lateral load tests) to experimentally determine p–y curves. The study was carried out on horizontal ground and two different types of slope such as, 1 Vertical to 2 Horizontal (1V:2H) and 1 Vertical to 1.5 Horizontal (1V:1.5H) with different relative density of 30, 45 and 70 % and three different pile embedment lengths [length to diameter ratios (L/D) of 25, 30 and 35]. The study includes the effect of ground slope, relative density and embedment length on lateral load capacity, bending moment, lateral soil resistance, lateral deflection and p–y curves. From the study it is concluded that the increase in pile-soil relative stiffness increases the lateral resistance against the lateral load and hence the depth of fixity reduces for increase in relative density. It is also found that the soil resistance increases with increase in the depth of the soil, relative density of the soil and the embedment length of the pile whereas the soil resistance decreases with increase in the slope of the ground surface.

N. Almas Begum

Papers

Experimental Investigation of Single Model Pile Subjected to Lateral Load in Sloping Ground