大断面隧道软弱围岩-支护系统稳定性分析

孙闯; 惠心敏喃; 贾宝新; 张涛

doi:10.13409/j.cnki.jdpme.2015.03.013

您当前的位置：

首页 >

文章列表页 >

大断面隧道软弱围岩-支护系统稳定性分析

更新时间：2025-12-11

- 大断面隧道软弱围岩-支护系统稳定性分析
- Analysis of the Stability of the Support System of Large Section Tunnel in Soft and Weak Surrounding Rock
- 防灾减灾工程学报 2015年35卷第3期页码：359-364+424
- 作者机构：
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（51274109）;辽宁省优秀人才计划项目（LJQ2011031）资助
- DOI：10.13409/j.cnki.jdpme.2015.03.013
  中图分类号： 451.2;U455.7
- 纸质出版：2015
- 稿件说明：
移动端阅览
[1]孙闯,惠心敏喃,贾宝新,张涛.大断面隧道软弱围岩-支护系统稳定性分析[J].防灾减灾工程学报,2015,35(03):359-364+424.

孙闯, 惠心敏喃, 贾宝新, et al. Analysis of the Stability of the Support System of Large Section Tunnel in Soft and Weak Surrounding Rock[J]. 2015, 35(3): 359-364+424.
[1]孙闯,惠心敏喃,贾宝新,张涛.大断面隧道软弱围岩-支护系统稳定性分析[J].防灾减灾工程学报,2015,35(03):359-364+424. DOI： 10.13409/j.cnki.jdpme.2015.03.013.

孙闯, 惠心敏喃, 贾宝新, et al. Analysis of the Stability of the Support System of Large Section Tunnel in Soft and Weak Surrounding Rock[J]. 2015, 35(3): 359-364+424. DOI： 10.13409/j.cnki.jdpme.2015.03.013.

摘要

采用室内试验研究手段获得隧道围岩力学特性

以Mohr-Coulomb弹塑性模型及应变软化模型为基础

采用FLAC3D数值模拟软件

构建三维数值模型

计算深埋隧道围岩特征曲线及纵剖面变形曲线

并对隧道围岩及支护结构安全性进行评价。结果表明:采用弹塑性模型计算所得的隧道围岩安全系数低于应变软化模型所得的安全系数

表明采用弹塑性模型进行支护结构设计时

支护结构安全性较低

设计中可能会增加支护材料费用

而考虑应变软化条件下的围岩安全系数更加接近于工程实际;采用极限应变值或支护结构极限承载压力所获得的围岩—支护系统安全系数较为接近

说明两种方法的差异较小

均可用于隧道围岩支护结构优化设计

采用收敛—约束法计算隧道安全稳定性更加直观

对工程实际具有一定指导作用。

Abstract

The mechanical characteristics of surrounding rock of tunnel is obtained by indoor experiment research method.Taking the Mohr-Coulomb elastic-plastic model and strain softening model as the foundation and using the FLAC3 Dnumerical simulation software

we construct the three-dimensional numerical model and calculate the characteristic curve of surrounding rock in deep buried tunnel and deformation curve and longitudinal profile

and the safety of tunnel surrounding rock and supporting structure is evaluated.The research results show that the safety factor of tunnel surrounding rock of elastoplastic model is lower than the calculated strain softening model.Using the elastoplastic model for the design of supporting structure

the safety of supporting structure is low.In the design the supporting materials costs may increase.While taking into account the strain softening condition

the safety coefficient of surrounding rock will be close to the engineering practice.Using the limit strain of surrounding rock support system pressure obtained safety coefficient is coincidental.The two methods can be used with minor differences for surrounding rock of the tunnel and support structure optimization design.Calculation of tunnel safety factor uses convergence-confined method

this has certain guiding significance for engineering practice.

关键词

Keywords

references

基于收敛-约束法的隧道围岩安全性评价 [J]. 孙闯,张向东,贾宝新. 公路交通科技 . 2014(03)

深部软弱岩体峰后等效力学模型及数值计算研究 [J]. 孙闯,张向东,李永靖. 岩土工程学报 . 2014(06)

复杂地质公路隧道长期安全监控系统设计及应用 [J]. 李讯,何川,王士民,汪波. 中国安全科学学报 . 2013(04)

埋深对软弱隧道围岩破坏影响机制试验研究 [J]. 汪成兵,朱合华. 岩石力学与工程学报 . 2010(12)

岩体工程结构的稳定性 [J]. 周维垣. 岩石力学与工程学报 . 2010(09)

软弱岩石峰后应变软化力学特性研究 [J]. 陆银龙,王连国,杨峰,李玉杰,陈海敏. 岩石力学与工程学报 . 2010(03)

公路隧道局部塌方洞段的围岩稳定性评价 [J]. 马亢,徐进,吴赛钢,张爱辉. 岩土力学 . 2009(10)

Input to the application of the convergence confinement method with time-dependent material behaviour of the support [J] . Gunter G. Gschwandtner,Robert Galler. Tunnelling and Underground Space Technology incorporating Trenchless Technology Research . 2011 (1)

Application of the convergence-confinement method to tunnels in rock masses exhibiting Hoek–Brown strain-softening behaviour [J] . L.R. Alejano,E. Alonso,A. Rodríguez-Dono,G. Fernández-Manín. International Journal of Rock Mechanics and Mining Sciences . 2009 (1)

Determination of residual strength parameters of jointed rock masses using the GSI system [J] . M. Cai,P.K. Kaiser,Y. Tasaka,M. Minami. International Journal of Rock Mechanics and Mining Sciences . 2006 (2)

Study of bifurcation in the problem of unloading a circular excavation in a strain-softening material [J] . F. Varas,E. Alonso,L.R. Alejano,G. Fdez.-Manín. Tunnelling and Underground Space Technology incorporating Trenchless Technology Research . 2005 (4)

Analysis of structural interaction in tunnels using the covergence–confinement approach [J] . P.P Oreste. Tunnelling and Underground Space Technology incorporating Trenchless Technology Research . 2003 (4)

Application of the Convergence-Confinement method of tunnel design to rock masses that satisfy the Hoek-Brown failure criterion [J] . C. Carranza-Torres,C. Fairhurst. Tunnelling and Underground Space Technology incorporating Trenchless Technology Research . 2000 (2)

浏览量

229

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

基于浅层地热能的寒区隧道排水沟保温防冻可行性研究

植物根系固土作用对崩岗稳定性影响的数值模拟

寒区冻结冰碛土的变形特性与非线性本构模型研究

基于多点地震动输入条件下的土质边坡地震反应分析

隧道穿越距离变化对地表框架结构变形的影响