Geotechnical resistance factors for ultimate limit state design of deep foundations in cohesive soils

被引：0

作者：

Naghibi, Mehrangiz ^{[1
]}

Fenton, Gordon A. ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Engn Math, Halifax, NS B3J 2X4, Canada

来源：

CANADIAN GEOTECHNICAL JOURNAL | 2011年 / 48卷 / 11期

基金：

加拿大自然科学与工程研究理事会;

关键词：

reliability-based design; load and resistance factor design; deep foundations; geotechnical resistance factor; COLLOQUIUM;

D O I：

10.1139/T11-066

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This paper investigates the ultimate limit state load and resistance factor design (LRFD) of deep foundations founded within purely cohesive soils. The geotechnical resistance factors required to produce deep foundation designs having a maximum acceptable failure probability are estimated as a function of site understanding and failure consequence. The probability theory developed in this paper, used to determine the resistance factors, is verified by a two-dimensional random field Monte Carlo simulation of a spatially variable cohesive soil. The agreement between theory and simulation is found to be very good, and the theory is then used to derive the required geotechnical resistance factors. The results presented in this paper can be used to complement current ultimate limit state design code calibration efforts for deep foundations in cohesive soils.

引用

页码：1729 / 1741

页数：13