不同条件下后施工隧道爆破开挖对邻近隧道振速的影响规律

梁世凡 晁晓辉 魏永冬 王光勇 郭佳奇

梁世凡, 晁晓辉, 魏永冬, 王光勇, 郭佳奇. 不同条件下后施工隧道爆破开挖对邻近隧道振速的影响规律[J]. 高压物理学报, 2023, 37(5): 055302. doi: 10.11858/gywlxb.20230678
引用本文: 梁世凡, 晁晓辉, 魏永冬, 王光勇, 郭佳奇. 不同条件下后施工隧道爆破开挖对邻近隧道振速的影响规律[J]. 高压物理学报, 2023, 37(5): 055302. doi: 10.11858/gywlxb.20230678
LIANG Shifan, CHAO Xiaohui, WEI Yongdong, WANG Guangyong, GUO Jiaqi. Influence of Blasting Excavation of Post-Construction Tunnel on Vibration Velocity of Adjacent Tunnel under Different Conditions[J]. Chinese Journal of High Pressure Physics, 2023, 37(5): 055302. doi: 10.11858/gywlxb.20230678
Citation: LIANG Shifan, CHAO Xiaohui, WEI Yongdong, WANG Guangyong, GUO Jiaqi. Influence of Blasting Excavation of Post-Construction Tunnel on Vibration Velocity of Adjacent Tunnel under Different Conditions[J]. Chinese Journal of High Pressure Physics, 2023, 37(5): 055302. doi: 10.11858/gywlxb.20230678

不同条件下后施工隧道爆破开挖对邻近隧道振速的影响规律

doi: 10.11858/gywlxb.20230678
基金项目: 企业委托课题(H21-478)
详细信息
    作者简介:

    梁世凡(1997-),男,硕士研究生,主要从事隧道与地下工程防灾减灾研究. E-mail:13213553635@163.com

    通讯作者:

    晁晓辉(1983-),男,高级工程师,主要从事高速公路施工管理研究. E-mail:yxh07051412@163.com

  • 中图分类号: O383; TU91

Influence of Blasting Excavation of Post-Construction Tunnel on Vibration Velocity of Adjacent Tunnel under Different Conditions

  • 摘要: 为研究后施工隧道爆破开挖对邻近隧道的影响,以格鲁吉亚E60高速公路隧道为工程背景,通过对大断面浅埋双线隧道爆破开挖进行数值模拟,探究爆破荷载对不同间距、不同埋深、不同围岩等级的邻近隧道振速的影响。结果表明:爆破荷载以后施工隧道掌子面为中心向四周围岩传播;在邻近隧道距爆源前方5 m的断面处围岩振速达到最大值,邻近隧道中爆源前方振速大于后方振速,且迎爆侧振速远远大于背爆侧振速,迎爆侧振速衰减速率大于背爆侧振速衰减速率,邻近隧道拱腰受到爆破荷载的影响最明显;邻近隧道围岩的x方向振速最大,z方向振速次之,y方向振速最小;不同条件下隧道间距、隧道埋深和围岩等级均与邻近隧道围岩及初期支护振速成反比,其中围岩等级对邻近隧道爆破的影响最显著。

     

  • 图  隧道位置及数值模型尺寸(单位:m)

    Figure  1.  Tunnel location and numerical model dimension (Unit: m)

    图  隧道位置关系及监测断面

    Figure  2.  Position relationship of tunnels and monitoring sections

    图  各监测断面的监测点布局

    Figure  3.  Arrangement of monitoring points of each monitoring section

    图  爆破炮孔作用边界

    Figure  4.  Action boundary of blasting holes

    图  隧道掌子面炮孔(a)及掏槽孔 (b)布置

    Figure  5.  Tunnel face blast holes (a) and cutting holes (b) arrangement

    图  爆破荷载时程曲线

    Figure  6.  Time history curve of blasting load

    图  三角形爆破荷载时程曲线

    Figure  7.  Time history curve of triangular blasting load

    图  围岩振速演化

    Figure  8.  Evolution of vibration velocity of surrounding rock

    图  初期支护振速演化

    Figure  9.  Evolution of vibration velocity of primary support

    图  10  不同隧道间距条件下邻近隧道断面O上各方向振速分布(单位:cm/s)

    Figure  10.  Vibration velocity distribution of adjacent tunnel section O in each direction under different tunnel spacing (Unit: cm/s)

    图  11  不同隧道间距条件下邻近隧道的径向振速分布

    Figure  11.  Radial velocity distribution of adjacent tunnel under different tunnel spacing

    图  12  不同隧道间距条件下邻近隧道初期支护的振速分布

    Figure  12.  Distribution of vibration velocity in adjacent tunnel initial support under different tunnel spacing

    图  13  不同隧道埋深条件下邻近隧道断面O各方向的振速分布(单位:cm/s)

    Figure  13.  Vibration velocity distribution of adjacent tunnel section O in each direction under different buried depths (Unit: cm/s)

    图  14  不同隧道埋深条件下邻近隧道的径向振速分布

    Figure  14.  Radial velocity distribution of adjacent tunnel under different buried depths

    图  15  不同隧道埋深条件下邻近隧道初期支护的振速分布

    Figure  15.  Distribution of vibration velocity in adjacent tunnel initial support under different buried depths

    图  16  不同围岩等级下邻近隧道断面O各方向的振速分布(单位:cm/s)

    Figure  16.  Vibration velocity distribution of adjacent tunnel section O in each direction under different surrounding rock grades (Unit: cm/s)

    图  17  不同围岩等级下邻近隧道径向振速分布

    Figure  17.  Radial velocity distribution of adjacent tunnel under different surrounding rock grades

    图  18  不同围岩等级下邻近隧道初期支护的振速分布

    Figure  18.  Distribution of vibration velocity in adjacent tunnel initial support under different surrounding rock grades

    表  1  围岩和支护结构的力学参数

    Table  1.   Mechanical parameters of surrounding rock and supporting structure

    Surrounding rock gradeρ/(kg·m−3)E/GPaCohesion/MPaνφ0/(°)
    250030.090.435
    250020.060.430
    250010.030.425
    Initial support250010.90.2
    下载: 导出CSV

    表  2  隧道炮孔布置参数

    Table  2.   Tunnel perforation arrangement parameters

    Blasting sequenceGunshot
    category
    Number of holesHole
    length/m
    Explosive sectionSingle hole charge/kgAmount of charge in
    a single stage/kg
    1Cutting hole62.2A10.7804.68
    2Auxiliary hole292.0A20.70220.36
    3Auxiliary hole372.0A30.70225.97
    4Auxiliary hole462.0A40.70232.29
    5Periphery hole902.0A50.54649.14
    下载: 导出CSV
  • [1] 贾磊, 解咏平, 李慎奎. 爆破振动对邻近隧道衬砌安全的数值模拟分析 [J]. 振动与冲击, 2015, 34(11): 173–177, 211. doi: 10.13465/j.cnki.jvs.2015.11.030

    JIA L, XIE Y P, LI S K. Numerical simulation for impact of blasting vibration on nearby tunnel lining safety [J]. Journal of Vibration and Shock, 2015, 34(11): 173–177, 211. doi: 10.13465/j.cnki.jvs.2015.11.030
    [2] 于德海, 秦凯凯. 地铁下穿既有铁路桥的爆破动力响应分析 [J]. 科学技术与工程, 2020, 20(8): 3302–3307. doi: 10.3969/j.issn.1671-1815.2020.08.052

    YU D H, QIN K K. The dynamic effect analysis of the blasting to the existing structures in subway tunnel [J]. Science Technology and Engineering, 2020, 20(8): 3302–3307. doi: 10.3969/j.issn.1671-1815.2020.08.052
    [3] ZHANG M. Numerical analysis for dynamic response of in situ blasting expansion of large cross-section tunnel with small net distance [J]. Advances in Civil Engineering, 2021, 2021: 2896782. doi: 10.1155/2021/2896782
    [4] LIANG Q G, LI J, LI D W, et al. Effect of blast-induced vibration from new railway tunnel on existing adjacent railway tunnel in Xinjiang, China [J]. Rock Mechanics and Rock Engineering, 2013, 46(1): 19–39. doi: 10.1007/s00603-012-0259-5
    [5] 王肖辉, 杜镀, 韩超. 台阶法隧道掘进爆破时地表及邻近隧道的振动响应 [J]. 爆破器材, 2020, 49(5): 54–58. doi: 10.3969/j.issn.1001-8352.2020.05.010

    WANG X H, DU D, HAN C. Vibration response of ground and adjacent tunnel under bench blasting for tunnel excavation [J]. Explosive Materials, 2020, 49(5): 54–58. doi: 10.3969/j.issn.1001-8352.2020.05.010
    [6] 罗志翔, 张敏超, 钟祖良. 空间交叉隧道爆破施工对邻近隧道结构影响研究 [J]. 地下空间与工程学报, 2018, 14(Suppl 1): 205–213.

    LUO Z X, ZHANG M C, ZHONG Z L. Study on the influence of blasting construction of space cross tunnel on adjacent tunnel [J]. Chinese Journal of Underground Space and Engineering, 2018, 14(Suppl 1): 205–213.
    [7] 方智淳, 陈志敏. 采石场爆破对邻近隧道的影响分析 [J]. 铁道建筑, 2018, 58(4): 87–89. doi: 10.3969/j.issn.1003-1995.2018.04.21

    FANG Z C, CHEN Z M. Influence analysis of quarry blasting on adjacent tunnel [J]. Railway Engineering, 2018, 58(4): 87–89. doi: 10.3969/j.issn.1003-1995.2018.04.21
    [8] 钱耀峰, 王星华. 爆破施工对邻近隧道安全的影响 [J]. 北京交通大学学报, 2014, 38(4): 90–96. doi: 10.11860/j.issn.1673-0291-2014.04.016

    QIAN Y F, WANG X H. Study on safety influence of blasting construction close to existing tunnel [J]. Journal of Beijing Jiaotong University, 2014, 38(4): 90–96. doi: 10.11860/j.issn.1673-0291-2014.04.016
    [9] 于建新, 刘焕春, 郭佳奇, 等. 双线公路隧道开挖爆破振动响应规律研究 [J]. 安全与环境学报, 2019, 19(5): 1568–1575. doi: 10.13637/j.issn.1009-6094.2019.05.012

    YU J X, LIU H C, GUO J Q, et al. Determination of the vibration response regularity of the blasting excavation in the double-track highway tunnels [J]. Journal of Safety and Environment, 2019, 19(5): 1568–1575. doi: 10.13637/j.issn.1009-6094.2019.05.012
    [10] ZHANG P, CAI J H, ZONG F, et al. Dynamic response analysis of underground double-line tunnel under surface blasting [J]. Shock and Vibration, 2021: 9226615. doi: 10.1155/2021/9226615
    [11] 连卫东, 叶娟, 谢剑鸣, 等. 邻近既有隧道的爆炸动力学响应及其防护结构 [J]. 科学技术与工程, 2021, 21(26): 11389–11395. doi: 10.3969/j.issn.1671-1815.2021.26.052

    LIAN W D, YE J, XIE J M, et al. Blasting dynamic response characteristics of adjacent existing tunnel and its protective structure [J]. Science Technology and Engineering, 2021, 21(26): 11389–11395. doi: 10.3969/j.issn.1671-1815.2021.26.052
    [12] 何忠明, 蔡军, 王利军, 等. 地铁隧道爆破开挖引起地表位移沉降的数值模拟 [J]. 中南大学学报(自然科学版), 2015, 46(9): 3496–3502. doi: 10.11817/j.issn.1672-7207.2015.09.045

    HE Z M, CAI J, WANG L J, et al. Numerical simulation of ground subsidence due to tunnel blasting excavation [J]. Journal of Central South University (Science and Technology), 2015, 46(9): 3496–3502. doi: 10.11817/j.issn.1672-7207.2015.09.045
    [13] 李小贝. 爆破施工对邻近既有隧道的振动响应研究 [J]. 爆破, 2021, 38(4): 149–155. doi: 10.3963/j.issn.1001-487X.2021.04.024

    LI X B. Study on vibration response of blasting construction to adjacent existing tunnels [J]. Blasting, 2021, 38(4): 149–155. doi: 10.3963/j.issn.1001-487X.2021.04.024
    [14] 杨仁树, 丁晨曦, 王雁冰, 等. 爆炸应力波与爆生气体对被爆介质作用效应研究 [J]. 岩石力学与工程学报, 2016, 35(Suppl 2): 3501–3506. doi: 10.13722/j.cnki.jrme.2016.0066

    YANG R S, DING C X, WANG Y B, et al. Action-effect study of medium under loading of explosion stress wave and explosion gas [J]. Chinese Journal of Rock Mechanics and Engineering, 2016, 35(Suppl 2): 3501–3506. doi: 10.13722/j.cnki.jrme.2016.0066
    [15] 黄丹. 浅埋、大跨隧道的控制爆破技术和控制爆破方案研究 [D]. 重庆: 重庆交通大学, 2012: 56–57.

    HUANG D. Study on control blasting technology and control blasting scheme of shallow large-span tunnel [D]. Chongqing: Chongqing Jiaotong University, 2012: 56–57.
    [16] 孙金山, 李正川, 陈明, 等. 《爆破安全规程》(GB 6722—2014)边坡岩体爆破振动速度安全允许值的理论探讨 [J]. 岩石力学与工程学报, 2017, 36(12): 2971–2980. doi: 10.13722/j.cnki.jrme.2016.1383

    SUN J S, LI Z C, CHEN M, et al. Discussion on the safety threshold of blasting vibration velocity for slope rock masses in safety regulations for blasting (GB 6722—2014) [J]. Chinese Journal of Rock Mechanics and Engineering, 2017, 36(12): 2971–2980. doi: 10.13722/j.cnki.jrme.2016.1383
    [17] 王先前, 黄亚兵, 彭立敏, 等. 隧道爆破全时程荷载研究及其应用 [J]. 铁道科学与工程学报, 2019, 16(1): 144–151. doi: 10.19713/j.cnki.43-1423/u.2019.01.020

    WANG X Q, HUANG Y B, PENG L M, et al. Study on full-time load function of tunnel blasting and its application [J]. Journal of Railway Science and Engineering, 2019, 16(1): 144–151. doi: 10.19713/j.cnki.43-1423/u.2019.01.020
    [18] 刘家明, 张俊儒, 王智勇, 等. 硬质地层下近接隧道爆破振动影响分区及动力响应研究 [J]. 现代隧道技术, 2023, 60(2): 125–137. doi: 10.13807/j.cnki.mtt.2023.02.014

    LIU J M, ZHANG J R, WANG Z Y, et al. Impact zoning and dynamic response to blasting vibration in adjacent tunnel under hard rock strata [J]. Modern Tunnelling Technology, 2023, 60(2): 125–137. doi: 10.13807/j.cnki.mtt.2023.02.014
    [19] 杨家松. 城市浅埋隧道正三角形掏槽爆破错峰降振研究 [J]. 工程爆破, 2019, 25(6): 20–26. doi: 10.3969/j.issn.1006-7051.2019.06.004

    YANG J S. Research on vibration reduction of staggered blasting in regular triangle cut of urban shallow tunnel [J]. Engineering Blasting, 2019, 25(6): 20–26. doi: 10.3969/j.issn.1006-7051.2019.06.004
    [20] HUANG H B, LI P, WANG C, et al. Research and analysis on the influence of small clear distance drilling and blasting method on the existing tunnel structure [J]. Advances in Civil Engineering, 2021: 4730936. doi: 10.1155/2021/4730936
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出版历程
  • 收稿日期:  2023-06-12
  • 修回日期:  2023-07-03
  • 网络出版日期:  2023-09-20
  • 刊出日期:  2023-11-07

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