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大型地下洞室岩梁开挖主要工程地质问题及处理措施讨论

王鹏, 楚文杰, 陈磊, 张嘉瑶

王鹏, 楚文杰, 陈磊, 张嘉瑶. 大型地下洞室岩梁开挖主要工程地质问题及处理措施讨论[J]. 岩土工程学报, 2019, 41(11): 2165-2172. DOI: 10.11779/CJGE201911024
引用本文: 王鹏, 楚文杰, 陈磊, 张嘉瑶. 大型地下洞室岩梁开挖主要工程地质问题及处理措施讨论[J]. 岩土工程学报, 2019, 41(11): 2165-2172. DOI: 10.11779/CJGE201911024
WANG Peng, CHU Wen-jie, CHEN Lei, ZHANG Jia-yao. Main engineering geological problems and treatment measures of large underground cavern rock beams during excavation[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(11): 2165-2172. DOI: 10.11779/CJGE201911024
Citation: WANG Peng, CHU Wen-jie, CHEN Lei, ZHANG Jia-yao. Main engineering geological problems and treatment measures of large underground cavern rock beams during excavation[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(11): 2165-2172. DOI: 10.11779/CJGE201911024

大型地下洞室岩梁开挖主要工程地质问题及处理措施讨论  English Version

详细信息
    作者简介:

    王 鹏(1985— )男,河南辉县人,学士,主要从事工程地质、岩土工程勘察等方面的研究。E-mail:wang_p5@ecidi.com。

  • 中图分类号: TU458;P642

Main engineering geological problems and treatment measures of large underground cavern rock beams during excavation

  • 摘要: 为研究地下洞室岩梁主要工程地质问题及其应对处理措施,通过分析白鹤滩水电站岩梁地质条件、破坏特征、影响因素、不利后果等,对岩梁主要地质问题进行归类,分析产生原因,总结处理措施,研究认为岩梁主要地质问题有围岩变形、卸荷回弹、破裂破坏、松弛破坏、块体破坏、缓倾角软弱结构面影响、陡倾角裂隙影响等,为最大限度的避免不利地质条件影响,应在洞室选址、方案布置时便充分考虑,开挖前详细制定岩梁开挖方案,必要时采取预处理措施,对开挖后发生的围岩破坏,可针对性的采用机械挖除、预应力加固、增加插筋、混凝土修补、设置扶壁墙、固结灌浆、锚索加固等措施。
    Abstract: In order to study the main engineering geological problems and treatment measures of underground cavern rock beams, by analysing the geological conditions, failure characteristics, influencing factors and adverse consequences of the rock beams of Baihetan Hydropower Station, the main geological problems of rock beams are classified, the causes are discussed, and the treatment measures are summarized. The study indicates the main geological problems of rock beams in the clued deformation of surrounding rock, unloading rebound, breakage, relaxation failure, block failure, influence of the slightly inclined weak layer, and influence of high dip angle fissure. In order to greatly avoid the influences of unfavorable geological conditions, full consideration should be given to the site selection and layout of caverns. Before excavation, the excavation plans of rock beams should be worked out in detail, and the pretreatment measures should be taken if necessary. For the failure of surrounding rock after excavation, the relevant measures such as mechanical excavation, pre-stressed reinforcement, additional reinforcement, concrete repair, supporting wall, consolidation grouting and reinforcement prestressed anchor cables should be adopted.
  • [1] 殷荣岗, 张建海, 邓建辉, 等. 地应力对地下厂房岩锚吊车梁变形及应力影响分析[J]. 岩石力学与工程学报, 2013, 32(增刊2): 3681-3687.
    (YIN Rong-gang, ZHANG Jian-hai, DENG Jian-hui, et al.Analyses of deformation and stress caused by geostress on rock-anchored beam of underground power house[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(S2): 3681-3687. (in Chinese))
    [2] 刘娟, 杨海霞. 地下洞室开挖应力释放对岩锚梁力学性能影响的探析[J]. 海河水利, 2014(4): 44-45, 49.
    (LIU Juan, YANG Hai-xia.Analysis of the effect of stress release from underground cavern excavation on mechanical properties of rock anchor beams[J]. Haihe Water Resources, 2014(4): 44-45, 49. (in Chinese))
    [3] 牟文杰, 骆安, 刘波. 浅析顺层岩体对地下厂房岩锚梁稳定性影响[J]. 陕西水利, 2014(5): 133-135.
    (MOU Wen-jie, LUO An, LIU Bo.Analysis of the influence of bedding rock mass on the stability of rock anchor beam of underground powerhouse[J]. Shaanxi Water Resources, 2014(5): 133-135. (in Chinese))
    [4] 徐富刚, 高剑飞, 王峻, 等. 猴子岩地下厂房施工过程岩锚梁裂缝成因及对策[J]. 水利学报, 2015, 46(增刊1): 242-247.
    (XU Fu-gang, GAO Jian-fei, WANG Jun, et al.Causes of cracks in rock anchor beams during construction of monkey rock underground powerhouse and countermeasures[J]. Journal of Hydraulic Engineering, 2015, 46(S1): 242-247. (in Chinese))
    [5] 董家兴, 徐光黎, 申艳军. 施工期岩锚梁岩台破坏模式及稳定性分析[J]. 地质科技情报, 2011, 30(6): 133-137.
    (DONG Jia-xing, XU Guang-li, SHEN Yan-jun.Analysis of failure modes and stability of rock bench for rock-bolt crane beam during construction stage[J]. Geological Science and Technology Information, 2011, 30(6): 133-137. (in Chinese))
    [6] 刘磊. 哈德布特水电站地下厂房岩锚吊车梁地质缺陷及超挖处理[J]. 科技创新与应用, 2013(34): 235-236.
    (LIU Lei.Geological defects and overexcavation treatment of rock anchor crane beam in underground powerhouse of hadbut hydropower station[J]. Technology Innovation and Application, 2013(34): 235-236. (in Chinese))
    [7] 陈为博. 复杂地质条件下大尺度地下洞室岩台梁支护设计[J]. 云南水力发电, 2016, 32(1): 38-41.
    (CHEN Wei-bo.Support design of rock bench and beam in large-scale underground cavern under complex geological conditions[J]. Yunnan Water Power, 2016, 32(1): 38-41. (in Chinese))
    [8] 董学元, 马丰云. 锦屏一级水电站岩锚梁施工技术[J]. 隧道建设, 2011, 31(2): 235-239, 245.
    (DONG Xue-yuan, MA Feng-yun.Case study on construction technology for rock anchored beam of Jinpin I hydropower station[J]. Tunnel Construction, 2011, 31(2): 235-239, 245. (in Chinese))
    [9] 王鹏, 苑久超, 文红伟, 等. 金沙江白鹤滩水电站施工详图设计阶段右岸地下厂房围岩稳定性工程地质专题报告[R]. 杭州: 中国电建华东勘测设计研究院有限公司, 2018.
    (WANG Peng, YUAN Jiu-chao, WEN Hong-wei, et al.Engineering geology special report on surrounding rock stability of right bank underground powerhouse in construction detailed drawing design stage of Baihetan Hydropower Station on Jinsha River[R]. Hangzhou: Powerchina Huadong Engineering Corporation Limited, 2018. (in Chinese))
    [10] 苏恒先, 王鹏, 宋刚, 等. 白鹤滩水电站导流洞专项安全鉴定地质自检报告[R]. 杭州: 中国电建华东勘测设计研究院有限公司, 2014.
    (SU Heng-xian, WANG Peng, SONG Gang, et al.Geological self-check report on safety identification of Baihetan hydropower station diversion tunnel[R]. Hangzhou: Powerchina Huadong Engineering Corporation Limited, 2014. (in Chinese))
    [11] 陈平志, 吴家耀, 褚卫江. 金沙江白鹤滩水电站岩石力学综合研究左右岸地下厂房洞室群第III期监测反馈分析专题研究[R]. 杭州: 浙江中科依泰斯卡岩石工程研发有限公司, 2015.
    (CHEN Ping-zhi, WU Jia-yao, CU Wei-jiang.Comprehensive Study on Rock Mechanics of Baihetan Hydropower Station on Jinsha River[R]. Hangzhou: HydroChina-ITASCA R&D Center, 2015. (in Chinese))
    [12] 王鹏, 洪望兵, 宋刚. 柱状节理玄武岩松弛圈尺寸效应及地应力影响[J]. 岩土工程学报, 2018, 40(1): 139-146.
    (WANG Peng, HONG Wang-bing, SONG Gang.Size effect and in-situ stress influence of columnar jointed basalt relaxation zone[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(1): 139-146. (in Chinese))
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出版历程
  • 收稿日期:  2018-11-05
  • 发布日期:  2019-11-24

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