|本期目录/Table of Contents|

[1]邵珠山,李希,赵南南,等.高地应力软岩隧道初期支护优化研究*[J].中国安全生产科学技术,2021,17(5):99-105.[doi:10.11731/j.issn.1673-193x.2021.05.015]
 SHAO Zhushan,LI Xi,ZHAO Nannan,et al.Research on optimization of initial support for soft rock tunnel with high ground stress[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(5):99-105.[doi:10.11731/j.issn.1673-193x.2021.05.015]
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高地应力软岩隧道初期支护优化研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年5期
页码:
99-105
栏目:
职业安全卫生管理与技术
出版日期:
2021-05-31

文章信息/Info

Title:
Research on optimization of initial support for soft rock tunnel with high ground stress
文章编号:
1673-193X(2021)-05-0099-07
作者:
邵珠山李希赵南南张喆乔汝佳
(1.西安建筑科技大学 土木工程学院,陕西 西安 710055;
2.西安建筑科技大学 陕西省岩土与地下空间工程重点实验室,陕西 西安 710055)
Author(s):
SHAO Zhushan LI XiZHAO NannanZHANG ZheQIAO Rujia
(1.School of Civil Engineering,Xi’an University of Architecture & Technology,Xi’an Shaanxi 710055,China;
2.Shaanxi Key Lab of Geotechnical and Underground Space Engineering,Xi’an University of Architecture & Technology,Xi’an Shaanxi 710055,China)
关键词:
软岩隧道初期支护边墙曲率特征曲线安全评价
Keywords:
soft rock tunnel initial support sidewall curvature characteristic curve safety evaluation
分类号:
X951
DOI:
10.11731/j.issn.1673-193x.2021.05.015
文献标志码:
A
摘要:
为研究边墙曲率、支护参数等因素对高地应力软岩隧道变形控制的效果,以大瑞铁路营盘山隧道为工程背景,结合现场监测数据,建立有限元模型,分析不同边墙矢跨比及初期支护参数对隧道变形的影响,借此得到合理的初期支护参数。结果表明:原有支护结构中“直边墙”对于隧道水平方向变形与压力抵抗能力较弱,当边墙曲率调整至0.12后,支护结构的受力和变形情况得到明显改善;初期支护参数中锚杆参数对于隧道变形控制效果较小,增强衬砌的强度可以有效控制隧道的变形;通过围岩-支护特征曲线对优化后的支护方案进行安全评价,发现其安全性能较之前显著增强,现场应用结果也表明支护结构并未出现破坏失稳现象,隧道变形得到有效控制。研究结果对类似工程变形控制及支护方案优化提供一定的参考依据。
Abstract:
In order to study the effect of deformation control by the sidewall curvature,support parameters and other factors,taking the Yingpanshan tunnel of Dali-Ruili railway as the engineering background,the on-site monitoring data were ananlyzed,and a finite element model was established.The deformation of tunnel after excavation and the influence of different sidewall curvatures and support parameters on the deformation of tunnel were analyzed,and the reasonable initial support parameters were obtained.The results showed that the "vertical sidewall" of the original support structure was weak in resistance to the horizontal deformation and pressure of the tunnel,and when the sidewall curvature was adjusted to 0.12,the stress and deformation of the support structure were significantly improved.In the initial support parameters,the parameters of bolt had little effect for the deformation control of tunnel,and the deformation of tunnel could be effectively controlled by increasing the strength of lining.The safety evaluation on the optimized support scheme was carried out through the characteristic curve,and it was found that the safety performance was significantly enhanced than the previous one.The on-site application results also presented that the support structure did not appear the failure or instability phenomena,and the tunnel deformation was effectively controlled.The research results provide a certain reference basis for the deformation control and support scheme optimization of similar engineerings.

参考文献/References:

[1]张德华,刘士海,任少强.基于围岩-支护特性理论的高地应力软岩隧道初期支护选型研究[J].土木工程学报,2015,48(1):139-148. ZHANG Dehua,LIU Shihai,REN Shaoqiang.Research on selection of preliminary support for tunnel in high ground-stress soft rock based on surrounding rock-support characteristic curve theory[J].China Civil Engineering Journal,2015,48(1):139-148.
[2]李术才,徐飞,李利平,等.隧道工程大变形研究现状、问题与对策及新型支护体系应用介绍[J].岩石力学与工程学报,2016,35(7):1366-1376. LI Shucai,XU Fei,LI Liping,et al.State of the art:challenge and methods on large deformation in tunnel engineeringand introduction of a new type supporting system[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(7):1366-1376.
[3]刘宇鹏,夏才初,吴福宝,等.高地应力软岩隧道长、短锚杆联合支护技术研究[J].岩石力学与工程学报,2020,39(1):105-114. LIU Yupeng,XIA Caichu,WU Fubao,et al.A combined support technology of long and short bolts of soft rock tunnels under high ground stresses[J].Chinese Journal of Rock Mechanics and Engineering,2020,39 (1):105-114.
[4]李岳,戴俊,顾寅,等.大变形隧道长短锚杆支护机理及设计应用[J].中国安全生产科学技术,2012,8(5):11 -15. LI Yue,DAI Jun,GU Yin,et al.Support mechanism and parameter design applications of long and short anchor in large deformation tunnel [J].Journal of Safety Science and Technology,2012,8(5):11-15.
[5]周杨,惠兴田,唐志强.软岩隧道自旋锚管抗拔力的计算理论[J].中国安全生产科学技术,2010,6(2):33-38. ZHOU Yang,HUI Xingtian,TANG Zhiqiang.Calculation theory of the pull-outresitance of self-screwed tube bolting in soft rock tunnel[J].Journal of Safety Science and Technology,2010,6(2):33-38.
[6]王伟,李忠,沈学军,等.软弱围岩隧道洞口浅埋段变形特征及控制措施研究[J].中国安全生产科学技术,2020,16(9):103-109. WANG Wei,LI Zhong,SHEN Xuejun,et al.Study on deformation characteristics and control measures of shallow-buried section at portal of soft rock tunnel [J].Journal of Safety Science and Technology,2020,16(9):103-109.
[7]王道远,刘佳,张逴,等.高地应力深埋隧道断裂破碎带大变形控制方法现场试验研究[J].岩土工程学报,2020,45(4):658-666. WANG Daoyuan,LIU Jia,ZHANG Chuo,et al.Field tests on large deformation control method for surrounding rock of deep tunnel in fault zone with high geostress [J].Chinese Journal of Geotechnical Engineering,2020,45(4):658-666.
[8]HUANG M Q,GUO Y J,ZHANG B.Deformation control by radial grouting in large-section and weak surrounding rock tunnels[J].Journal of Bjing University of Technology,2007(5):512-516.
[9]邓斌,饶和根,廖卫平,等.软岩隧道支护结构优化研究[J].铁道科学与工程学报,2017,14(10):2203-2213. DENG Bin,RAO Hegen,LIAO Weiping,et al.Study on optimization of supporting structure of soft rock tunnel [J].Journal of Railway Science and Engineering,2017,14(10):2203-2213.
[10]WANG L G,LI H L,ZHANG J,et al.Numerical simulation of creep characteristics of soft roadway with bolt-grouting support[J].Journal of Central South University of Technology,2008,15(S1):391-396.
[11]李雪峰,尚应超,谷笑旭,等.隧道穿越红黏土接触带初期支护优化研究[J].铁道工程学报,2019,36(9):49-53. LI Xuefeng,SHANG Yingchao,GU Xiaoxu,et al.Research on the optimization of initial support parameters for tunnel passing through red clay contact zone [J].Journal of Railway Engineering Society,2019,36(9):49-53.
[12]YAN X,YE Y S.Research on test of reducing deformation of soft rock tunnel with high stress level by pilot heading[J].Applied Mechanics & Materials,2012,170-173:1565-1568.
[13]黄海昀,仇文革,黄黆,等.石质铁路隧道初期支护优化研究[J].铁道科学与工程学报,2019,16(1):153-159. HUANG Haiyun,QIU Wenge,HUANG Guang,et al.Study on primary support optimization for railway tunnel in rock[J].Journal of Railway Science and Engineering,2019,16 (1):153-159.
[14]李国良,刘志春,朱永全.兰渝铁路高地应力软岩隧道挤压大变形规律及分级标准研究[J].现代隧道技术,2015,52(1):62-68. LI Guoliang,LIU Zhichun,ZHU Yongquan.On the large squeezing deformation law and classification criteria for the Lanzhou-Chongqing railway tunnels in soft and high geostress rocks [J].Modern Tunnel Technology,2015,52(1):62-68.
[15]扈世民.基于收敛-约束法地铁区间隧道初期支护安全性研究[J].铁道学报,2015,37(10):117-121. HU Shimin.Research on safety of initial support in Metro Regional tunnel based on convergence-comfinement method [J].Journal of the China Railway Society,2015,37(10):117-121.

相似文献/References:

[1]周杨,惠兴田,唐志强.软岩隧道自旋锚管抗拔力的计算理论[J].中国安全生产科学技术,2010,6(2):33.
 ZHOU Yang,HUI Xing-tian,TANG Zhi-qiang.Calculation theory of pullout resistance of self-screwed tube bolting in soft-rock tunnel[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2010,6(5):33.

备注/Memo

备注/Memo:
收稿日期: 2020-10-16
* 基金项目: 国家自然科学基金项目(11872287);陕西省重点研发计划项目(2019ZDLGY01-10)
作者简介: 邵珠山,博士,教授,主要研究方向为岩石细观力学与地下工程工艺力学研究。
更新日期/Last Update: 2021-06-03