Surface settlements of a wedge-shape bed under a concentrated load

Fedorovskii, V. G.; Onopa, I. A.

doi:10.1007/bf01711027

Cited by 2 publications

(4 citation statements)

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“…on a compressed layer whose thickness varies linearly [186,187]. A kernel of the wedge-shaped base contact model, found earlier [89], is used, relating the pressure to the vertical displacements on the base surface. A punch can be subject to an off-centre vertical load, reduced to a central force and two moments, acting in orthogonal directions.…”

Section: Spatial Contact Problems For Rigid Flat-bottom Punchesmentioning

confidence: 99%

“…The both approaches discussed were tested for solving problems for punches of various shape on a non-uniformly compressible base in the form of an elastic isotropic wedge with a pinched lower surface [89].…”

Section: Formulation Of the Problem And Its Numerical Implementationmentioning

confidence: 99%

“…This, in turn, provides important information at the stage of the complex-shaped foundation Application of the elastic base model in the elaborated numerical algorithm is performed as a separate module and does not require resetting of the whole program in case any other model of the elastic base being used, for which the influence functions have been obtained (See, e.g., [39,73,75,89,210,225]). As a rather helpful illustration of the abilities of the proposed numerical method we consider a spatial contact model of an elastically compressible variable-thickness layer in the shape of a spatial wedge 0 ≤ x < ∞, -∞ < y < ∞, 0 ≤ z ≤ x × tanα with a central angle α at the rib, 0 < α < 90 • [89,158]. The oblique plane, restricting the wedge from below, is completely restrained.…”

Section: Calculation Of the Section Kernel Boundary For Rigid Foundatmentioning

confidence: 99%

“…In practical calculations of soil bases for the linear deformation stage spatial contact models for a half-space [92,128], a constant-or variable-thickness layer [75,89], layered and nonhomogeneous with depth half-spaces, etc. have gained good reputation.…”

Section: Spatial Contact Model For a Nonlinearly Deformable Basementioning

confidence: 99%

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Contact Interaction of Shallow Foundations with Nonhomogeneous Bases

Aleynikov

2009

Foundations of Engineering Mechanics

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In the fourth chapter the results of the boundary-element solutions of spatial contact problems for complex-shaped punches, located on the surfaces of elastic nonclassical bases, are analyzed. The problems under consideration correspond to the modeling of contact interaction of shallow foundations with elastic nonhomogeneous bases. Contact pressure fields under punches of various shape under an eccentric load (a contact problem on a strongly inclined punch) are obtained. The influence of non-uniform (over the area) compressibility as well as depthdependent nonhomogeneity of the base deformational properties on the formation and development of detachment zones, settlements and slopes of punches with the increase of the absolute values of overturning moments is shown. An algorithm to calculate the boundaries of the section core for rigid complex-shaped foundation plates from the stress values is described. Some optimization problems are solved for load and shape parameter control in order to provide uniform settlement of rigid foundation. As an example for the application of the developed boundary element method, a contact problem is solved and the elastic base stress-strained state is determined for a rigid strip foundation of variable width. In the same chapter a spatial contact model of the base is built taking into account nonlinear elastic soil properties. A procedure for the model parameter characterization based on the direct punch test data is considered. Finally, the chapter contains the studies of contact problems of bending of orthotropic plates situated on elastic nonclassical bases, performed by BEM combined with finite difference method. S.M. Aleynikov,

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Section: Spatial Contact Problems For Rigid Flat-bottom Punchesmentioning

confidence: 99%

Section: Formulation Of the Problem And Its Numerical Implementationmentioning

confidence: 99%