«Previous Article|Table of Contents|Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:

2011年04期

Page:

39-42

Research Field:

Publishing date:

2011-12-20

Info

Title:

Numerical Realization and Its Test Validation for Nonlinear Characteristic of Rock Mass

Author(s):

ZHONG Zheng-qiang

School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha 410114, Hunan, China

Keywords:

In order to describe the characteristics of rock mass based on the nonlinear failure criterion Hoek-Brown criterion;  the numerical realization method for the nonlinear failure criterion Hoek-Brown criterion was proposed. The numerical simulation of the tr

PACS:

TU457

DOI:

-

Abstract:

In order to describe the characteristics of rock mass based on the nonlinear failure criterion Hoek-Brown criterion, the numerical realization method for the nonlinear failure criterion Hoek-Brown criterion was proposed. The numerical simulation of the tri-axial compressive test for rock mass was carried out, and the reliability of numerical calculation method was validated. The influences of each parameter in the nonlinear failure criterion on the shear strength parameters were analyzed. Results show that the relations between the shear strength parameters of Mohr-Coulomb criterion and Hoek-Brown criterion parameters can be determined by the theoretical derivation; with the increase of geological strength index G_SI, the shear strength parameters c and φ of rock mass increase gradually, and the effect of cohesion to the geological strength index of rock mass is more sensitive to that of friction angle; but their variations with rock mass parameter of integrity rock m_i are not large, and the geological strength index G_SI has larger impact on the strength of rock mass than m_i.

References:

[1] HANSEN R J,LEMESSURIER W J,PAUL P J,et al.New Steel Framing System Promises Major Savings in High-rise Apartments[J].Architecture Record,1966,139(6):191-196.
[2]周绪红,莫 涛,蔡益燕,等.新型交错桁架结构体系的应用[J].钢结构,2000,15(2):16-19. ZHOU Xu-hong,MO Tao,CAI Yi-yan,et al.The Use of New Type Staggered Truss Structure[J].Steel Construction,2000,15(2):16-19.
[3]卢林枫.钢结构错列桁架体系结构分析与设计方法[D].西安:西安建筑科技大学,2003. LU Lin-feng.Staggered Truss Steel Framing Analysis and Design Method[D].Xi'an:Xi'an University of Architecture and Technology,2003.
[4]莫 涛.钢结构交错桁架体系的弹塑性全过程分析理论与试验研究[D].长沙:湖南大学,2003. MO Tao.Elastic-plastic Analysis Theory and Experiment Research on Steel Staggered Truss System[D].Changsha:Hunan University,2003.
[5]周期石.钢结构交错桁架体系静力和动力性能分析[D].长沙:湖南大学,2005. ZHOU Qi-shi.Static and Dynamic Analysis of Staggered Truss Framing System in Steel Structure[D].Changsha:Hunan University,2005.
[6] SCALZI J B.The Staggered Truss System-structural Considerations[J].Engineering Journal,1971(10):138-143.
[7]周期石.高层钢结构交错桁架结构体系的静力性能研究[D].长沙:湖南大学,2001. ZHOU Qi-shi.Study of Static Properties on High-layer Steel Staggered Truss Structural System[D].Changsha:Hunan University,2001.
[8]LEFFLER R E.Calculation of Wind Drift in Staggered-truss Buildings[J].Engineering Journal,1983(1):1-28.
[9]李 红.数值分析[M].武汉:华中科技大学出版社,2003. LI Hong.Numerical Analysis[M].Wuhan:Huazhong University of Science and Technology Press,2003.

Memo

Memo:

-

Common functions

Last Update: 2011-12-20