Mechanics of tunnel deformation in water-rich fault zone and double-gradient grouting NPR compensation countermeasures

Tao Zhigang; Zhou Zicong; Yang Xiaojie; Huo Shusen; Sun Jihao; Du Zhifeng

doi:10.19606/j.cnki.jmst.2023.06.004

Volume 8 Issue 6

Dec. 2023

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Article Navigation > Journal of Mining Science and Technology > 2023 > 8(6): 768-779

Tao Zhigang, Zhou Zicong, Yang Xiaojie, Huo Shusen, Sun Jihao, Du Zhifeng. Mechanics of tunnel deformation in water-rich fault zone and double-gradient grouting NPR compensation countermeasures[J]. Journal of Mining Science and Technology, 2023, 8(6): 768-779. doi: 10.19606/j.cnki.jmst.2023.06.004

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Mechanics of tunnel deformation in water-rich fault zone and double-gradient grouting NPR compensation countermeasures

doi: 10.19606/j.cnki.jmst.2023.06.004

State Key Laboratory for Geomechanics and Deep Underground Engineering, Beijing 100083, China
School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, China

Received Date: 2023-06-10
Rev Recd Date: 2023-08-31
Publish Date: 2023-12-31

Abstract

Abstract

Tabaiyi Tunnel is located in the eastern foothill of the Tibetan Plateau, crossing a multi-stage fault tectonic zone, and its surrounding rock is weak and broken, and its strength plummets when it encounters water. The peripheral rock under the original design scheme has a large deformation of meter scale, and there are disasters such as twisted arch, elevated arch bulge and sudden mud and water surge. In order to solve the problem of peripheral rock fragmentation in the tunnel in the water-rich fault zone, firstly, the deformation mechanism of the tunnel in the water-rich fault zone and its transformation were analyzed through mineral composition analysis, point load test and ground stress test; through the bearing capacity test of the grouted peripheral rock with ungrouted, regular grouted and double-gradient grouted, it was determined to adopt the double-gradient grouted process for the anchoring of NPR anchor ropes; then, the optimal anchor rope number was derived from the numerical simulation and on-site test; finally, through the on-site application, the optimal anchor rope number was obtained. Finally, the reliability of the double gradient grouting and high preload long and short NPR anchor cable support system is verified through field application. Based on monitoring data, the results of the study can be used as a reference for the control of large deformation hazards in similar tunnels with water-rich fault zones.
- water-rich fault zone,
- large deformation of soft rock,
- double gradient grouting,
- NPR cable

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References(24)

References

[1]	王章琼, 晏鄂川, 王亚军. 隧道穿越片岩断层破碎带塌方涌水机理及处治技术[J]. 施工技术, 2018, 47(24): 5-8. https://www.cnki.com.cn/Article/CJFDTOTAL-SGJS201824003.htm Wang Zhangqiong, Yan Echuan, Wang Yajun. Mechanism and treatment technology of collapse and water inrush in fault zone schist tunnel[J]. Construction Technology, 2018, 47(24): 5-8. https://www.cnki.com.cn/Article/CJFDTOTAL-SGJS201824003.htm
[2]	吴金刚, 陈建芹, 马杰, 等. 富水断层破碎带大断面隧道设计与快速施工[J]. 隧道建设: 中英文, 2022, 42(S1): 353-359. https://www.cnki.com.cn/Article/CJFDTOTAL-JSSD2022S1040.htm Wu Jingang, Chen Jianqin, Ma Jie, et al. Design and fast construction technology for large-cross-section tunnel in water-rich fracture zone[J]. Tunnel Construction, 2022, 42(S1): 353-359. https://www.cnki.com.cn/Article/CJFDTOTAL-JSSD2022S1040.htm
[3]	杨辉. 穿越断层破碎带隧道围岩大变形机理及控制技术研究[D]. 阜新: 辽宁工程技术大学, 2022.
[4]	闫红江, 刘成禹, 邓志刚, 等. 丽香铁路中义隧道初期支护大变形的力学机制[J]. 水利与建筑工程学报, 2019, 17(5): 168-173, 180. https://www.cnki.com.cn/Article/CJFDTOTAL-FSJS201905029.htm Yan Hongjiang, Liu Chengyu, Deng Zhigang, et al. Mechanical mechanism of initial support large deformation of zhongyi tunnel in Lixiang railway[J]. Journal of Water Resources and Architectural Engineering, 2019, 17(5): 168-173, 180. https://www.cnki.com.cn/Article/CJFDTOTAL-FSJS201905029.htm
[5]	孙晓明, 韩强, 缪澄宇, 等. 基于非接触监测深埋软弱破碎围岩隧洞破坏试验研究[J]. 矿业科学学报, 2017, 2(3): 235-242. http://kykxxb.cumtb.edu.cn/article/id/68 Sun Xiaoming, Han Qiang, Miao Chengyu, et al. Modeling test of deep buried tunnel in soft and broken rock based on non-contact monitoring methods[J]. Journal of Mining Science and Technology, 2017, 2(3): 235-242. http://kykxxb.cumtb.edu.cn/article/id/68
[6]	王树仁, 刘招伟, 屈晓红, 等. 软岩隧道大变形力学机制与刚隙柔层支护技术[J]. 中国公路学报, 2009, 22(6): 90-95. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200906012.htm Wang Shuren, Liu Zhaowei, Qu Xiaohong, et al. Large deformation mechanics mechanism and rigid-gap-flexible-layer supporting technology of soft rock tunnel[J]. China Journal of Highway and Transport, 2009, 22(6): 90-95. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200906012.htm
[7]	张建智. 膨胀岩隧洞时效变形的黏弹塑性力学解析研究[D]. 泉州: 华侨大学, 2016.
[8]	刘波, 杨伟红. 考虑时间效应的隧道开挖三维沉降预测模型及应用[J]. 矿业科学学报, 2019, 4(5): 384-393. http://kykxxb.cumtb.edu.cn/article/id/237 Liu Bo, Yang Weihong. Prediction model and application of three-dimensional ground surface settlement induced by tunnel excavation considering time effect[J]. Journal of Mining Science and Technology, 2019, 4(5): 384-393. http://kykxxb.cumtb.edu.cn/article/id/237
[9]	梁庆国, 陈星宇, 刘晓杰, 等. 富水黄土隧道围岩大变形控制技术研究: 以银百高速甜永段榆林子隧道为例[J]. 安全与环境工程, 2022, 29(4): 55-65. https://www.cnki.com.cn/Article/CJFDTOTAL-KTAQ202204006.htm Liang Qingguo, Chen Xingyu, Liu Xiaojie, et al. Large deformation control technology of surrounding rock of water-rich loess tunnels—a case study about yulinzi tunnel in Tianshuibao-yonghe part of Yinchuan-baise highway[J]. Safety and Environmental Engineering, 2022, 29(4): 55-65. https://www.cnki.com.cn/Article/CJFDTOTAL-KTAQ202204006.htm
[10]	刘前林. 公路隧道穿越富水软弱断层碎裂围岩施工技术[J]. 四川水泥, 2022(3): 198-199, 202. https://www.cnki.com.cn/Article/CJFDTOTAL-SCSA202203074.htm Liu Qianlin. Construction technology of highway tunnel passing through fractured surrounding rock of water-rich weak fault[J]. Sichuan Cement, 2022(3): 198-199, 202. https://www.cnki.com.cn/Article/CJFDTOTAL-SCSA202203074.htm
[11]	何文瑞, 何富连, 张坤, 等. 淋水软弱巷道注浆加固扩散机理与参数优化的研究[J]. 矿业科学学报, 2019, 4(3): 221-229. http://kykxxb.cumtb.edu.cn/article/id/217 He Wenrui, He Fulian, Zhang Kun, et al. Diffusion mechanism and parameter optimization in the process of grouting reinforcement of drenching and soft roadway[J]. Journal of Mining Science and Technology, 2019, 4(3): 221-229. http://kykxxb.cumtb.edu.cn/article/id/217
[12]	朱光轩, 张庆松, 刘人太, 等. 基于渗滤效应的沙层劈裂注浆扩散规律分析及其ALE算法[J]. 岩石力学与工程学报, 2017, 36(S2): 4167-4176. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2017S2051.htm Zhu Guangxuan, Zhang Qingsong, Liu Rentai, et al. Analysis of fracturing grouting diffusion in sand considering filtration effects and its ALE algorithm[J]. Chinese Journal of Rock Mechanics and Engineering, 2017, 36(S2): 4167-4176. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX2017S2051.htm
[13]	邹金锋, 李亮, 杨小礼. 劈裂注浆扩散半径及压力衰减分析[J]. 水利学报, 2006, 37(3): 314-319. https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB200603009.htm Zou Jinfeng, Li Liang, Yang Xiaoli. Penetration radius and pressure attenuation law in fracturing grouting[J]. Journal of Hydraulic Engineering, 2006, 37(3): 314-319. https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB200603009.htm
[14]	朱明听, 张庆松, 李术才, 等. 土体劈裂注浆加固主控因素模拟试验[J]. 浙江大学学报: 工学版, 2018, 52(11): 2058-2067. https://www.cnki.com.cn/Article/CJFDTOTAL-ZDZC201811003.htm Zhu Mingting, Zhang Qingsong, Li Shucai, et al. Simulation test for main control factors of soil splitting grouting reinforcement[J]. Journal of Zhejiang University: Engineering Science, 2018, 52(11): 2058-2067. https://www.cnki.com.cn/Article/CJFDTOTAL-ZDZC201811003.htm
[15]	李鹏, 张庆松, 张霄, 等. 基于模型试验的劈裂注浆机制分析[J]. 岩土力学, 2014, 35(11): 3221-3230. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201411028.htm Li Peng, Zhang Qingsong, Zhang Xiao, et al. Analysis of fracture grouting mechanism based on model test[J]. Rock and Soil Mechanics, 2014, 35(11): 3221-3230. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201411028.htm
[16]	中华人民共和国住房和城乡建设部. 工程岩体分级标准: GB/T 50218—2014[S]. 北京: 中国计划出版社, 2015.
[17]	He M C, Wang Q. Excavation compensation method and key technology for surrounding rock control[J]. Engineering Geology, 2022, 307: 106784.
[18]	孙晓明, 张勇, 何满潮, 等. 深部井巷工程高预应力NPR耦合支护技术[J]. 矿业科学学报, 2023, 8(1): 50-65. doi: 10.19606/j.cnki.jmst.2023.01.005 Sun Xiaoming, Zhang Yong, He Manchao, et al. Research of high pre-stress NPR support technology in deep shaft roadway engineering[J]. Journal of Mining Science and Technology, 2023, 8(1): 50-65. doi: 10.19606/j.cnki.jmst.2023.01.005
[19]	何满潮, 景海河, 孙晓明. 软岩工程力学[M]. 北京: 科学出版社, 2002.
[20]	孙志强, 张露. 不同注浆压力下浆液扩散半径试验研究[J]. 煤矿现代化, 2019(5): 109-111. https://www.cnki.com.cn/Article/CJFDTOTAL-MKXD201905035.htm Sun Zhiqiang, Zhang Lu. Experimental study on the diffusion radius of slurry under different grouting pressures[J]. Coal Mine Modernization, 2019(5): 109-111. https://www.cnki.com.cn/Article/CJFDTOTAL-MKXD201905035.htm
[21]	张玉, 郭豪, 陈铁林, 等. 孔隙介质水泥浆液渗透注浆有效扩散距离试验研究[J]. 中南大学学报: 自然科学版, 2019, 50(10): 2536-2551. https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201910022.htm Zhang Yu, Guo Hao, Chen Tielin, et al. Experimental study on effective diffusion distance of cement slurry in porous media under permeation grouting[J]. Journal of Central South University: Science and Technology, 2019, 50(10): 2536-2551. https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201910022.htm
[22]	李术才, 冯啸, 刘人太, 等. 考虑渗滤效应的砂土介质注浆扩散规律研究[J]. 岩土力学, 2017, 38(4): 925-933. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201704002.htm Li Shucai, Feng Xiao, Liu Rentai, et al. Diffusion of grouting cement in sandy soil considering filtration effect[J]. Rock and Soil Mechanics, 2017, 38(4): 925-933. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201704002.htm
[23]	许延春, 张二蒙, 赵霖, 等. 黏度对浆液在裂隙岩体中扩散与充填规律的影响[J]. 矿业科学学报, 2021, 6(1): 71-81. doi: 10.19606/j.cnki.jmst.2021.01.008 Xu Yanchun, Zhang Ermeng, Zhao Lin, et al. Study on the law of influence by slurry viscosity on the fractured aquifer grouting and diffusion[J]. Journal of Mining Science and Technology, 2021, 6(1): 71-81. doi: 10.19606/j.cnki.jmst.2021.01.008
[24]	工业和信息化部. 注浆技术规程: YS/T 5211—2018[S]. 北京: 中国计划出版社, 2018.

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Mechanics of tunnel deformation in water-rich fault zone and double-gradient grouting NPR compensation countermeasures

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