大型地下洞库岩体力学参数取值及工程应用
Selection and Engineering Application of Rock Mechanical Parameters for Large Underground Rock Cavern
浏览(2189) 下载(1)
- DOI:
- 作者:
- 任文明, 梁久正
REN Wen-ming, LIANG Jiu-zheng
- 作者单位:
- 中国石油天然气管道工程有限公司, 河北 廊坊 065000
China Petroleum Pipeline Engineering Co., Ltd., Langfang 065000, China
- 关键词:
- 岩体力学;参数;地质强度指标GSI;Q系统法;地下洞库
rock mechanics;parameter;geological strength index GSI;Q system;underground rock cavern
- 摘要:
- 节理岩体强度与力学参数可通过最新版的广义Hoek-Brown破坏准则进行估计,其预测结果能够满足工程应用。建立在现场工程岩体详细工程地质勘察基础上的Q系统法,不仅为确定岩体GSI指标提供了便利,也可用于详细设计阶段的支护设计。通过工程应用说明了采用Hoek-Brown破坏准则预测节理岩体力学参数的过程。
The strength and mechanical parameters of jointed rock mass can be estimated in terms of the lately generalized Hoek-Brown failure criterion, the estimated results can be applicable in project properly. Qsystem based on careful geology observations of in situ rock mass provides convenience to determine rock mass index GSI. Furthermore, it can be applied in detailed support design. An engineering calculation process shows how the mechanical parameters of jointed rock mass are estimated by means of Hoek-Brown failure criterion.2012,1(1): 14-17 收稿日期：2011-1-3DOI：10.3969/j.issn.1001-2206.2012.01.004基金项目：中国石油天然气管道局科技资助(局科10-1-A)作者简介：任文明(1981- ),男,河南辉县人,工程师,2007年毕业于中国石油大学(华东)岩土工程专业,硕士,目前主要从事地下洞室的工程设计工作.参考文献：
[1] Bieniawski Z T.Rock Mass Classification in Rock Engineering[A].Proceedings Symposium on Exploration for Rock Engineering[C].Cape Town:SERE,1976.97-106.
[2] Barton N,Lien R,Lunde J.Engineering Classification of Rock Masses for the Design of Tunnel Support[J].Rock Mechanics,1974,6 (4):183-236.
[3] Hock E,Brown E T.Empirical Strength Criterion for Rock Masses[J].Journal of Geotechnical Engineering,1980,106(GT9):1 013-1 035.
[4] Kalamaras G S,Bieniawski Z T.A Rock Mass Strength Concept for Coal Seams Incorporating the Effect of Time[A].8th LSRM Congress[C].Tokyo:ISRM,1995.295-302.
[5] Hoek E.Strength of Rock & Rock Masses[J].ISRM News Journal,1994,2(2):4-16.
[6] 蔡斌,喻勇,吴晓铭.《工程岩体分级标准》与Q分类法、RMR分类法的关系及变形参数估算[J].岩石力学与工程学报,2001,20(增):1679-1681.
[7] 卢书强,许模.基于GSI系统的岩体变形模量取值及应用[J].岩石力学与工程学报,2009,28(增1):2 736-2 742.
[8] 韩凤山.节理化岩体强度与力学参数估计的地质强度指标GSI法[J].大连大学学报,2007,28(6):48-51.
[9] Marinos V,Marinos P,Hoek E.The geological strength index:Applications and limitations[J].Bull.Eng.Geol.Environ.,2005,64(1):55-65.
[10] Sonmez H,Ulusay R.Modifications to the geological strength index (GSI) and their applicability to the stability of slopes[J].Int J Rock Mech Min Sci,1999,36(6):743-760.
[11] 苏永华,封立志,李志勇,等.Hoek-Brown准则中确定地质强度指标因素的量化[J].岩石力学与工程学报,2009,28(4):680-685.