Mohr-Coulomb model considering variation of elastic modulus and its application

被引：7

作者：

Cui, XZ ^{[1
]}

Jin, Q ^{[1
]}

Shang, QS ^{[1
]}

Liu, ST ^{[1
]}

机构：

[1] Shandong Univ, Sch Civil Engn, Jinan 250061, Peoples R China

来源：

FRACTURE AND STRENGTH OF SOLIDS VI, PTS 1 AND 2 | 2006年 / 306-308卷

关键词：

Mohr-Coulomb model; Duncan-Chang model; model modification; rigid piles;

D O I：

10.4028/www.scientific.net/KEM.306-308.1445

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Mohr-Coulomb model is a perfect elastoplastic model. It only considers the variation of material strength with lateral compressive stress, but doesn't consider the variation of elastic modulus with lateral compressive stress and stress level and this is accordant with the true characteristic of geological material. The elasticity modulus in Mohr-Coulomb model was modified by employing the processing method of tangential modulus in Duncan-Chang nonlinear elastic model. In modified model, the stress-strain curve in elastic phrase behaves as hyperbola. In order to embed the modified model in FLAC(3D) program (Fast Lagrangian Analysis of Continua in 3 Dimensions), a preprocessing program was written and was employed to analyze numerically the bearing capacity of rigid piles loaded laterally.

引用

页码：1445 / 1448

页数：4