Study on Stress Mechanism and Countermeasure of Multi-Arch Tunnel without Middle Drift

  • Li Zhihou ,
  • Wang Anmin ,
  • Chen Shuwang ,
  • Chen Junwu ,
  • Deng Zhiyun
Expand
  • 1. Yunnan Communications Investment & Construction Group Co., Ltd., Kunming 650032, P. R. China;
    2. Yunnan Institute of Transportation Planning and Design, Kunming 650011, P. R. China;
    3. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China

Received date: 2024-03-18

  Online published: 2025-01-03

Abstract

The multi-arch tunnel without middle drift is the latest development type of the multi-arch tunnel, which can significantly improve the construction efficiency and reduce the project cost. However, there are some disadvantages such as close construction, multiple transformation of the stress system and difficult construction control. Therefore, the mechanical mechanism and failure characteristics of the lining structure of the multi-arch tunnel without middle drift are studied through model tests, combined with typical tunnel disease characteristics and the construction experiences of 65 tunnels, the safety construction countermeasures of the unguided arch tunnel are put forward. The model experiment results show that: The bending moment and axial force values of the right arch waist of the advance hole are both largest and the most unfavorable parts. Therefore, the structural design and construction quality control of the right arch waist and other parts of the advance hole need to be strengthened, and countermeasures of the thirty words principle of "pay attention to geology, strong advance, pre-reinforcement, stable middle wall, first support, short excavation, weak blasting, frequent measurement, tight secondary lining and detail injection" are proposed. The countermeasures in this paper have guiding significance for the design and safe construction of multi-arch tunnel without middle drift.

Cite this article

Li Zhihou , Wang Anmin , Chen Shuwang , Chen Junwu , Deng Zhiyun . Study on Stress Mechanism and Countermeasure of Multi-Arch Tunnel without Middle Drift[J]. Chinese Journal of Underground Space and Engineering, 2024 , 20(6) : 1969 -1978 . DOI: 10.20174/j.JUSE.2024.06.23

References

[1] 王学斌, 刘杨. 复杂条件超浅埋超大断面双连拱隧道开挖方案比选[J]. 地下空间与工程学报, 2022, 18(增1): 243-251. (Wang Xuebin, Liu Yang. Excavation schemes comparison of ultra-shallowly-buried twin-arch tunnel with super-large cross-section under complicated conditions[J]. Chinese Journal of Underground Space and Engineerin, 2022, 18(Supp.1): 243-251. (in Chinese))
[2] 杨果林, 胡敏, 阳明, 等. 连拱隧道复合式中墙偏转机制及其预防措施[J]. 地下空间与工程学报, 2019, 15(增1): 305-310. (Yang Guolin, Hu Min, Yang Ming, et al. Research on deflection mechanism of compound middle wall of double-arched tunnel and preventive measures[J]. Chinese Journal of Underground Space and Engineering, 2019, 15(Supp.1): 305-310. (in Chinese))
[3] Dang B, Weng X, Qin C, et al. Modeling test study on influence mechanism of large-span double-arch tunnels in proximity to existing tracks[J]. Engineering Failure Analysis, 2024, 165: 108821.
[4] Sui Y, Cheng X, Zhao Z, et al. Investigation of cracking mechanism of the first tunnel lining during double-arch tunnel construction[J]. Underground Space, 2024, 14: 1-17.
[5] 程晓辉, 随意, 赵作周, 等. 双连拱隧道施工中衬砌开裂与力学行为研究进展[J]. 工程力学, 2023, 40(5): 1-19. (Cheng Xiaohui, Sui Yi, Zhao Zuozhou, et al. Research progress on cracking and mechanical behavior of lining during double-arch tunnel construction[J]. Engineering Mechanics, 2023, 40(5): 1-19. (in Chinese))
[6] 闵博, 张成平, 张旭, 等. 拱顶背后空洞影响下非对称连拱隧道结构裂损规律[J]. 中南大学学报(自然科学版), 2019, 50(7): 1686-1695. (Min Bo, Zhang Chengping, Zhang Xu, et al. Failure laws of asymmetrical double-arch tunnels under effects of voids behind vault[J]. Journal of Central South University (Science and Technology), 2019, 50(7): 1686-1695. (in Chinese))
[7] 曾维成, 周应新, 翟俊莅, 等. 连拱隧道无中导洞施工技术与监测分析[J]. 地下空间与工程学报, 2019, 15(增1): 361-366. (Zeng Weicheng, Zhou Yingxin, Zhai Junli, et al. Construction technology without middle drift and monitoring analysis of double-arch tunnel[J]. Chinese Journal of Underground Space and Engineering, 2019, 15(Supp.1): 361-366. (in Chinese))
[8] 汤华, 姜成业, 邓琴, 等. 浅埋无中导洞连拱隧道先行洞衬砌承担围岩荷载确定方法[J]. 岩土力学, 2024, 45(4): 1170-1180. (Tang Hua, Jiang Chengye, Deng Qin, et al. A method for determining surrounding rock load borne by antecedence tunnel lining of shallowly buried double-arch tunnel without middle drift[J]. Rock and Soil Mechanics, 2024, 45(4): 1170-1180. (in Chinese))
[9] 毕钛俊, 邓琴, 汤华, 等. 基于复变函数理论的无中导连拱隧道应力与位移解析解[J]. 岩土力学, 2024, 45(3): 777-787. (Bi Taijun, Deng Qin, Tang Hua, et al. Analytical solution of stress and displacement of double-arch tunnel without middle drift based on functions of complex variables[J]. Rock and Soil Mechanics, 2024, 45(3): 777-787. (in Chinese))
[10] 王亚琼, 杨御博, 高启栋, 等. 无中墙连拱隧道爆破振动响应特性及安全控制措施[J]. 中国公路学报, 2023, 36(11): 266-277. (Wang Yaqiong, Yang Yubo, Gao Qidong, et al. Study on blast vibration characteristics and safety control measures in the excavation of multi-arch tunnel without a middle wall[J]. China Journal of Highway and Transport, 2023, 36(11): 266-277. (in Chinese))
[11] 姜成业, 汤华, 邓琴, 等. 深埋无中导洞连拱隧道围岩压力计算方法研究[J]. 中南大学学报(自然科学版), 2023, 54(3): 1168-1177. (Jiang Chengye, Tang Hua, Deng Qin, et al. Calculation method of surrounding rock pressure of deeply buried double-arch tunnel without middle drift[J]. Journal of Central South University (Science and Technology), 2023, 54(3): 1168-1177. (in Chinese))
[12] 高红杰, 何平, 陈峥. 深埋非对称连拱隧道过程荷载计算方法研究[J]. 岩土工程学报, 2020, 42(6): 1059-1066. (Gao Hongjie, He Ping, Chen Zheng. Calculation of process load of deep-buried asymmetric multi-arch tunnels[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(6): 1059-1066. (in Chinese))
[13] 李雨哲, 柏署, 杨雄, 等. 不等跨四连拱隧道中隔墙结构受力现场测试与分析[J]. 岩土工程学报, 2023, 45(10): 2201-2208. (Li Yuzhe, Bai Shu, Yang Xiong, et al. Field mechanical tests and analyses of partition walls in unequal-span four-arch tunnels[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(10): 2201-2208. (in Chinese))
[14] 杨果林, 葛云龙, 彭伟, 等. 连拱隧道复合式曲中墙受力现场监测分析[J]. 华中科技大学学报(自然科学版), 2019, 47(1): 55-59. (Yang Guolin, Ge Yunlong, Peng Wei, et al. In-situ testing analysis of compound curved middle wall of multi-arch tunnel[J]. Journal of Huazhong University of Science and Technology(Nature Science Edition), 2019, 47(1): 55-59. (in Chinese))
[15] Min B, Zhang X, Zhang C, et al. Prediction of bearing capacity of cracked asymmetrical double-arch tunnels using the artificial neural networks[J]. Engineering Failure Analysis, 2024, 156: 107805.
[16] Min B, Zhang C, Zhang X, et al. Cracking performance of asymmetric double-arch tunnels due to the voids behind linings[J]. Thin-Walled Structures, 2020, 154: 106856.
[17] 杨忠民, 高永涛, 吴顺川, 等. 节理岩体中纵向间距对连拱隧道稳定性的影响[J]. 中国公路学报, 2018, 31(10): 167-176. (Yang Zhongmin, Gao Yongtao, Wu Shunchuan, et al. Influence of longitudinal spacing of double-arch tunnel on tunnel stability in jointed rock mass[J]. China Journal of Highway and Transport, 2018, 31(10): 167-176. (in Chinese))
[18] 余涛, 廖杭, 朱宁波, 等. 粉煤灰堆积体大断面连拱隧道失稳破坏模式及施工力学研究[J]. 岩土工程学报, 2024, 46(9): 1909-1918. (Yu Tao, Liao Hang, Zhu Ningbo, et al. Instability failure modes and construction mechanics of large-section multi-arch tunnels in fly ash deposits[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(9): 1909-1918. (in Chinese))
[19] 邹建华,谭捍华,张学民.连拱隧道初支结构稳定性评价及施工方法探讨[J].地下空间与工程学报,2013,9(6):1362-1367.(Zou Jianhua,Tan Hanhua,Zhang Xuemin.The stability evaluation of primary support structure and discussion on construction method of multi-arch tunnel[J].Chinese Journal of Underground Space and Engineering,2013,9(6):1362-1367.(in Chinese))
[20] 刘昆珏,随意,程晓辉,等.考虑围岩参数空间变异性的连拱隧道稳定性分析[J].地下空间与工程学报,2023,19(3):911-920.(Liu Kunjue,Sui Yi,Cheng Xiaohui,et al.Stability analysis of double-arch tunnels considering the spatial variability of rock parameters[J].Chinese Journal of Underground Space and Engineering,2023,19(3):911-920.(in Chinese))
[21] 王明年, 李泽星, 唐浪洲, 等. 薄直中隔墙连拱隧道钢带加固措施抗震效果[J]. 交通运输工程学报, 2024, 24(3): 124-138. (Wang Mingnian, Li Zexing, Tang Langzhou, et al. Seismic performance of steel strip reinforcement measure on double-arch tunnel with thin and straight mid-partition wall[J]. Journal of Traffic and Transportation Engineering, 2024, 24(3): 124-138. (in Chinese))
[22] 江伟, 高启栋, 王亚琼, 等. 无中墙连拱隧道先行洞爆破振动响应特性与隔振方案比选研究[J]. 岩土工程学报, 2023, 45(11): 2367-2377. (Jiang Wei, Gao Qidong, Wang Yaqiong, et al. Blast vibration characteristics and its isolation scheme selection of existing tunnels in multi-arch tunnels without middle wall[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(11): 2367-2377. (in Chinese))
Outlines

/