نتایج جستجو برای: shallow foundations

تعداد نتایج: 67310  

In this study, dynamic bearing capacity of adjacent shallow strip foundations located on sandy soil was examined using a numerical finite difference modeling, FLAC. The behavioral interference of shallow strip foundations under different conditions was investigated. The effect of soil strength parameters, geometric characteristics of shallow foundations and cyclic loads at different distance ra...

Journal: :civil engineering infrastructures journal 0
reza jamshidi chenari assistant professor, civil engineering group, faculty of engineering, university of guilan, guilan, iran. ali mahigir m.sc. student, civil engineering group, faculty of engineering, university of guilan, guilan, iran.

naturally occurred soil deposits inherit heterogeneity and anisotropy in their strength properties. the main purpose of this paper is to model the soil stratum with anisotropy consideration and spatially varying undrained shear strength by using random field theory coupled with finite difference numerical analysis to evaluate their effect on the bearing capacity of the shallow foundations. in t...

A. Ghahramani M. Jahanandish M. Veiskarami,

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...

Journal: :computational methods in civil engineering 2010
m. veiskarami m. jahanandish a. ghahramani

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...

Determining the ultimate bearing capacity (UBC) is vital for design of shallow foundations. Recently, soft computing methods (i.e. artificial neural networks and support vector machines) have been used for this purpose. In this paper, Random Forest (RF) is utilized as a tree-based ensemble classifier for predicting the UBC of shallow foundations on cohesionless soils. The inputs of model are wi...

Journal: :Mathematical Modelling 1987

Journal: :Soil Dynamics and Earthquake Engineering 2009

Journal: :Soils and Foundations 1997

Journal: :international journal of civil engineering 0
h. shahnazari school of civil engineering, iran university of science and technology, p.o. box 16765-163, narmak, tehran, iran m. a. shahin department of civil engineering, curtin university, perth western australia 6845, australia m. a. tutunchian school of civil engineering, iran university of science and technology, p.o. box 16765-163, narmak, tehran, iran

due to the heterogeneous nature of granular soils and the involvement of many effective parameters in the geotechnical behavior of soil-foundation systems, the accurate prediction of shallow foundation settlements on cohesionless soils is a complex engineering problem. in this study, three new evolutionary-based techniques, including evolutionary polynomial regression (epr), classical genetic p...

2001
K. J. McManus N. R. R. Burdon

The resistance of shallow foundations to lateral loads is often relied upon to transmit the base shear forces from the ground to a building during an earthquake. Considering the importance of this link in the lateral load path it receives little attention in current design practice in New Zealand. An assumption is commonly made, either explicitly or implicitly, that the combination of sliding f...

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