基于Hoek-Brown本构模型的巷道围岩塑性分析  

Plastic analysis of surrounding rock based on Hoek-Brown constitutive model

作　　者：王昆[1] 王小坡[1] 马淑胤[1] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001

出　　处：《矿业工程研究》2013年第3期1-5,共5页Mineral Engineering Research

基　　金：国家自然科学基金资助项目(51174005;51074005;51134012);教育部新世纪优秀人才支持计划资助项目(NCET-08-0819)

摘　　要：Hoek-Brown准则在岩体破坏分析中综合考虑了岩体结构、岩体强度、采动等多方面的影响,在一定程度上弥补了Mohr-Coulomb准则在岩体破坏分析时的不足,但是由于FLAC3D计算程序中没有明确给出Hoek-Brown计算模型,故无法直接调用Hoek-Brown计算模型,因此只能利用Hoek-Brown准则和Mohr-Coulomb准则转换公式,将Hoek-Brown准则应用到FLAC3D中.结合某巷道具体实例,求出理论解,然后对Hoek-Brown准则和Mohr-Coulomb准则分别进行数值模拟,通过分析结果可以得出Hoek-Brown准则与实际工程应用比较接近,这为FLAC3D在实际工程中的应用提供一个参考.Hock- Brown criterion in the rock mass damage analysis takes into account the rock mass structure, rock mass strength, mining and other aspects of influence, to some extent makes up for the Mohr - Coulomb criterion in analysis of rock mass damage is not enough. But it is not clearly given the Hoek- Brown calculation model in the so it can＇ t directly use Hock - Brown criterion model, only using Hoek- Brown criterion and Mohr -Coulomb criterion transformation formula, and applies Hock - Brown criterion to FLAC3D. Combining with some concrete examples of roadway, and the theoretical solution, then respectively using Hock - Brown criterion and Mohr - Coulomb criterion is used to numerically simulate, by comparison with the results can be concluded closer to application of Hock - Brown criterion and the actual project, which provides a reference for application of FLAG3D in practical enganeenng

关 键 词：HOEK-BROWN准则 MOHR-COULOMB准则 巷道围岩 

分 类 号：TD322[矿业工程—矿井建设]