Abstract: In order to address the design problem of the combined support of prestressed bolts and prestressed cables in super-large span tunnels, based on the theory of the perimeter rock pressure arch, the combined effect of prestressed bolts and prestressed cables, along with the anchoring parameters, was analyzed. The support effect was evaluated in the large span transition section of Badaling Great Wall Station. It was found that the optimal arch axis of a pressure arch followed an elliptical shape, with the semi-axes were determined by the in-situ stress and the cross-sectional geometry. The axial force of the pressure arch was determined by the coincidence of the short axis direction and long axis direction of the pressure arch ellipse with the excavation section. Prestressed bolts were observed to interact with shallow surrounding rock to form pressure arches with bearing capacity, and the anchoring parameters were found to determine the shape and compressive strength of the pressure arches. Prestressed cables were utilized to fully exploit the bearing capacity of deep, stable surrounding rock, with the anchoring parameters determining their ultimate bearing capacity. The supporting effect of the combined support of prestressed bolts and prestressed cables was analyzed through the settlement of the vault. The maximum settlement of the vault was measured at 36.9 mm, indicating that the combined support system of prestressed bolts and prestressed cables effectively controls the deformation of surrounding rock.
王浩. 超大跨度隧道预应力锚杆与锚索组合支护设计方法[J]. 隧道与地下工程灾害防治, 2025, 7(1): 83-89.
WANG Hao. Design method of combined support of prestressed bolt and cable for super large span tunnel. Hazard Control in Tunnelling and Underground Engineering, 2025, 7(1): 83-89.
[1] 张顶立, 王梦恕, 高军, 等. 复杂围岩条件下大跨隧道修建技术研究[J]. 岩石力学与工程学报, 2003, 22(2): 290-296. ZHANG Dingli, WANG Mengshu, GAO Jun, et al. Construction technique of large-span tunnel under condition of complicated surrounding rocks[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(2): 290-296. [2] 龚彦峰, 张俊儒, 徐向东, 等. 全风化花岗岩富水地层超大断面隧道设计技术[J]. 铁道工程学报, 2015, 32(10): 79-85. GONG Yanfeng, ZHANG Junru, XU Xiangdong, et al. Design technology for super large cross section tunnel in stratum of completely weathered granite with abundant water[J]. Journal of Railway Engineering Society, 2015, 32(10): 79-85. [3] 洪军, 郭海满, 张俊儒, 等. 新考塘隧道出口三线渐变段结构选型与施工工法研究[J]. 隧道建设(中英文), 2016, 36(8): 953-959. HONG Jun, GUO Haiman, ZHANG Junru, et al. Study of structure selection and construction method for three-line transition section at exit of Xinkaotang Tunnel[J]. Tunnel Construction, 2016, 36(8): 953-959. [4] 曲海锋. 扁平特大断面公路隧道荷载模式及应用研究[D]. 上海: 同济大学, 2007. QU Haifeng. Study on load mode of road tunnel with extra-large cross-section and low flat-ratio and its application[D]. Shanghai: Tongji University, 2007. [5] 章慧健, 龚伦, 仇文革, 等. 隧道分部开挖的围岩松动区演变分析[J]. 岩土工程学报, 2014, 36(12): 2323-2329. ZHANG Huijian, GONG Lun, QIU Wenge, et al. Evolution of loosened zone of surrounding rock for tunnels constructed by multi-partition excavation method[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(12): 2323-2329. [6] 朱正国, 李文江, 宋玉香. 超大跨车站隧道三维数值模拟分析[J]. 岩土力学, 2008, 29(增刊1): 277-282. ZHU Zhengguo, LI Wenjiang, SONG Yuxiang. 3D numerical simulation of super-large span railway station[J]. Rock and Soil Mechanics, 2008, 29(Suppl.1): 277-282. [7] VANICEK I, VANICEK M. The degree of deterioration of the tunnels of the prague metro based on a monitoring assessment[J]. Acta Geotechnica Slovenica, 2007, 4(2):34-47. [8] SADAGHIANI M H, DADIZADEH S. Study on the effect of a new construction method for a large span metro underground station in Tabriz-Iran[J]. Tunnelling and Underground Space Technology, 2010, 25(1): 63-69. [9] SHARIFZADEH M, KOLIVAND F, GHORBANI M, et al. Design of sequential excavation method for large span urban tunnels in soft ground-Niayesh Tunnel[J]. Tunnelling and Underground Space Technology, 2013, 35: 178-188. [10] 高源, 杨天鸿, 辛全明, 等. 北山隧道式大跨度地下四季滑雪场围岩稳定性研究[J]. 隧道与地下工程灾害防治, 2019, 1(3): 109-115. GAO Yuan, YANG Tianhong, XIN Quanming, et al. Study on stability of surrounding rock in large-span underground tunnel of Beishan four seasons ski resort[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(3): 109-115. [11] ROBINSON R A, KUCEKER M S, FELDMAN A I, et al. Ground and liner behavior during construction of the Mt. Baker Ridge Tunnel[C] //Proceedings of the Rapid Excavation and Tunneling Conference. New Orleans, USA: Elsevier, 1987: 309-328. [12] LUNARDI P. Cellular arch technique for large-span station cavern[J]. Tunnels and Tunnelling International, 1991, 23(11): 23-26. [13] 宋瑞霞, 赵永虎, 米维军, 等. 帷幕注浆在富水大跨度黄土隧道中的应用[J]. 隧道与地下工程灾害防治, 2021, 3(2): 43-48. SONG Ruixia, ZHAO Yonghu, MI Weijun, et al. Application of curtain grouting in watery and large-span loess tunnel[J]. Hazard Control in Tunnelling and Underground Engineering, 2021, 3(2): 43-48. [14] 陈建勋, 罗彦斌. 大跨度黄土公路隧道结构稳定性及控制技术研究[J]. 隧道与地下工程灾害防治, 2019, 1(1): 93-101. CHEN Jianxun, LUO Yanbin. The stability of structure and its control technology for lager-span loess tunnel[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(1): 93-101. [15] 罗彬, 杨晖, 刘宁, 等. 超大断面隧道预留中岩柱围岩应力及其支撑控制技术[J]. 隧道与地下工程灾害防治, 2021, 3(1): 48-57. LUO Bin, YANG Hui, LIU Ning, et al. Surrounding rock stress of rock pillar and its support control technology in super-large cross-section tunnel[J]. Hazard Control in Tunnelling and Underground Engineering, 2021, 3(1): 48-57. [16] 肖丛苗, 张顶立, 朱焕春, 等. 大跨度地下工程支护结构研究[J]. 岩土力学, 2015, 36(增刊2): 513-518, 524. XIAO Congmiao, ZHANG Dingli, ZHU Huanchun, et al. Study of large-span underground engineering supporting structure [J]. Rock and Soil Mechanics, 2015, 36(Suppl.2): 513-518, 524. [17] 孙振宇, 张顶立, 房倩. 隧道锚固系统的协同作用及设计方法[J]. 工程力学, 2019, 36(5): 53-66. SUN Zhenyu, ZHANG Dingli, FANG Qian. The synergistic effect and design method of tunnel anchorage system[J]. Engineering Mechanics, 2019, 36(5): 53-66. [18] 王文谦.大跨度隧道围岩压力拱效应研究[D]. 北京:北京交通大学, 2018. WANG Wenqian. Study on pressure arch effect of a large crosssection tunnel[D]. Beijing: Beijing Jiaotong University, 2018. [19] 王博楠. 巷道围岩锚杆支护作用的加固拱理论及应用研究[D]. 西安: 西安科技大学, 2013. WANG Bonan.Theoretical and applicational study of anchor reinforced arch in roadway surrounding rock[D]. Xi'an: Xi'an University of Science and Technology, 2013. [20] 何思明. 预应力锚索作用机理研究[D]. 成都: 西南交通大学, 2004. HE Siming. Study on mechanism of prestressed anchor rope[D]. Chengdu: Southwest Jiaotong University, 2004. [21] HUANG Z P, BROCH E, LU M. Cavern roof stability: mechanism of arching and stabilization by rockbolting[J]. Tunnelling and Underground Space Technology, 2002, 17(3): 249-261. [22] 中国铁路总公司. 铁路隧道监控量测技术规程: Q/CR 9218—2024[S]. 北京: 中国铁道出版社, 2024.
2025, Vol. 7 
