in shallow foundations, the third bearing capacity factor, n, has been found to show a decreasing tendency with increasing the foundation size. it is supported by experimental observations and related mainly to stress level dependent nature of the soil. on the other hand, the bearing capacity is often obtained theoretically without consideration of the foundation vertical displacements. in thi...

soil slopes are sometimes curved in plan rather than being straight. this curvature,especially when it is convex, decreases the bearing capacity of the slope. finite element methodhas been used here in this research to investigate the reducing effect of curvature on bearingcapacity of a slope. failure of soil has been assumed to be according to mohr-coulomb criteria;but the flow rule of the soi...

In difficult soil conditions, engineers sometimes choose to combine reinforced soil and spread footings instead of deep foundations. Among the available techniques for soil reinforcement, vibro stone columns are frequently used to reduce the liquefaction risk, improve the soil properties and improve the overall seismic performance. While there are different models available to evaluate the bear...

The bearing capacity of a square footing on an unstabilised and geogrid-stabilised granular layer over clay is estimated using finite element techniques in ABAQUS (a commercial software). model incorporates range soil parameters thicknesses. two-layered system the assumes strong upper weak lower layer. parametric results analyses are used to develop design curves with dimensionless terms linear...

Cumulative settlement is one of the primary potential detrimental aspects of rocking foundations. It has been well documented that if the factor of safety against bearing failure is not very large (e.g., less than five or so), settlement can become significant. A series of footings of different shapes were subject to lateral slow cyclic loading on the centrifuge to study the effect of shape on ...

The presence of underground voids within a failure zone usually results in reduction the bearing capacity footings. This paper presents for ultimate ratio, qu/γB, strip footing on top sand layer overlying clay with voids, and without placing geotextile reinforcement at interface between layers. Using finite difference software FLAC 2D, ratio was calculated different depths horizontal distance t...

Artificial cementation is a method commonly used to enhance and improve soil properties. This paper investigates the effect of using different amounts cement on strength parameters bearing capacity, finite element method. Experimental tests are conducted samples with Portland cement. A 2-D numerical model created validated modelling software, COMSOL Multiphysics 5.6 software. The study finds th...

Abstract The presence of the groundwater level (GWL) at rock mass may significantly affect mechanical behavior, and consequently bearing capacity. water particularly modifies two aspects that influence capacity: submerged unit weight overall geotechnical quality mass, because circulation tends to clean open joints. This paper is a study has on ultimate capacity shallow foundations mass. calcula...

An extensive program of laboratory testing was conducted on ring footing rested gypseous soil brought from the north Iraq (Salah El-Deen governorate) with a gypsum content 59%. There are limited researches available, and even fewer have been done experimentally to understand how footings behave; almost all previous works only concern behavior under vertical loads, Moreover, relatively few studi...

in many structures, the applied lateral loads are comparable with gravity loads. these types of piles which are subject to high lateral load are usually divided into two categories including long and short piles. the general methods to estimate lateral bearing capacity of short and long piles are based on ultimate bearing capacity and allowable horizontal displacement respectively. in the prese...