Estimating the Elastic Settlement of Piled Foundations on Rock

被引：18

作者：

Eid, Hisham T. ^{[1
]}

Shehada, Abdalfatah A. ^{[2
]}

机构：

[1] Qatar Univ, Civil Engn, Doha 2713, Qatar

[2] Qatar Univ, Doha 2713, Qatar

来源：

INTERNATIONAL JOURNAL OF GEOMECHANICS | 2015年 / 15卷 / 03期

关键词：

Elasticity; Pile foundations; Pile groups; Raft foundations; Rock masses; Stiffness; Elastic analysis; Pile settlement; SKIN FRICTION; DESIGN;

D O I：

10.1061/(ASCE)GM.1943-5622.0000376

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This research introduces a simple method for preliminary evaluation of the elastic settlement of piled foundations resting on rock. Despite a significant number of publications in this area, the present effort is distinguished by adopting a unique representation of rock nonhomogeneity. It also considers pile-subgrade stiffness ratios that have not been covered in the literature for piled foundations on nonhomogeneous media. The settlement behavior was investigated using an extensive three-dimensional finite-element (FE) analysis of different piled foundation models. Elastic settlement of single piles was also studied for comparison with the pile-group behavior. Charts were developed to estimate the elastic settlement of piled foundations and to help in choosing the optimum pile spacing and length that limit foundation settlement to tolerable levels. Settlement values yielded from the FE analysis were compared with those calculated from equations commonly used in estimating elastic settlement of foundations.

引用

页数：10

共 33 条

[1]

[Anonymous], SAP 2000 14

[2] Special Issue on Advances in Modeling Rock Engineering Problems Introduction [J].