Based on the flexural behavior test of TSM pipe-roof structure, a series of three-dimensional model of TSM verified by laboratory tests was established, and the stress distribution pattern of TSM pipe-roof structure under monotonic static load was investigated, and the effect of two parameters, including steel tube wall thickness and steel tube chord height ratio, on the flexural bearing capacity of the structure. The results show that the TSM pipe-roof structure experienced three working phases: elastic, elastoplastic and plastic during the loading process, and there existed obvious stress concentration at the intersection of steel pipe and connecting steel plate with the increase of load. Besides, the wall thickness and the chord height ratio of the steel tube have significantly improved flexural bearing capacity of the TSM pipe-roof structure. When the wall thickness of steel tube is increased from 4 mm to 8 mm, the maximum flexural capacity of the structure can be increased by 9.09%; with the increase of chord height ratio, the flexural bearing capacity increases first and then decreases, and the optimal chord height ratio is around 3.0. The results of this study are expected to provide a reliable reference for design and application in the novel pipe-roof structures.
Zhao Wen
,
Pi Dongli
,
Dong Jiachao
,
Lu Bo
. Study on the Stress Distribution and Effect of Steel Tube Parameters of TSM Structure[J]. Chinese Journal of Underground Space and Engineering, 2025
, 21(1)
: 261
-271
.
DOI: 10.20174/j.JUSE.2025.01.29
[1] 韩宝明,李亚为,鲁放,等.2021年世界城市轨道交通运营统计与分析综述[J]. 都市快轨交通,2022,35(1):5-11.(Han Baoming,Li Yawei, Lu Fang, et al. Statistical analysis of urban rail transit operations in the world in 2021: a review[J]. Urban Rapid Rail Transit, 2022,35(1):5-11.(in Chinese))
[2] Fang Q, Zhang D, Wong L N Y. Environmental risk management for a cross interchange subway station construction in China[J]. Tunnelling and Underground Space Technology, 2011, 26(6): 750-763.
[3] Zhang Z Q, Li H Y, Liu H Y, et al. Load transferring mechanism of pipe umbrella support in shallow-buried tunnels[J]. Tunnelling and Underground Space Technology, 2014, 43: 213-221.
[4] Xiao H, Zhou S, Sun Y. Stability analysis and case study of shallow tunnel using pipe roof support[J]. Geotechnical and Geological Engineering, 2019, 37(3): 1249-1260.
[5] Coller P J, Abbott D G. Microtunneling techniques to form an insitu barrier around existing structures[A]//High Level Radioactive Waste Management: Proceedings of the fifth annual international conference[C]. 1994.
[6] 潘秀明,汪国锋,王贵和.北京地铁工程施工环境风险管理与处置方案综述[J]. 施工技术,2008(10):65-69. (Pan Xiuming, Wang Guofeng, Wang Guihe. Summarization of construction environmental risk management and disposal schemes on Beijing metro engineering[J]. Construction Technology, 2008(10):65-69. (in Chinese))
[7] Yang X, Li Y S. Research of surface settlement for a single arch long-span subway station using the pipe-roof pre-construction method[J]. Tunnelling and Underground Space Technology, 2018, 72: 210-217.
[8] Shimada H, Hamanakal A, Sasaoka T, et al. Effect of application of pipe roof method by using pipe jacking on behavior of surrounding soil[J]. Physical Science and Application, 2013, 6: 353-358.
[9] Zhang Z, Li H, Liu H, et al. Load transferring mechanism of pipe umbrella support in shallow-buried tunnels[J]. Tunnelling and Underground Space Technology, 2014, 43: 213-221.
[10] Funatsu T, Hoshino T, Sawae H, et al. Numerical analysis to better understand the mechanism of the effects of ground supports and reinforcements on the stability of tunnels using the distinct element method[J]. Tunnelling and Underground Space Technology, 2008, 23(5): 561-573.
[11] Jia P J, Zhao W, Chen Y, et al. A case study on the application of the steel tube slab structure in construction of a subway station[J]. Applied Sciences, 2018, 8(9): 1437.
[12] 阎石,金春福,钮鹏.新管幕工法大直径钢顶管施工力学特性数值模拟分析[J]. 施工技术,2009,38(增2):376-380.(Yan Shi, Jin Chunfu, Niu Peng. Numerical simulation on mechanical performance of steel pipes during new tubular roof construction[J]. Construction Technology, 2009,38(Supp.2):376-380. (in Chinese))
[13] 黎永索,张可能,黄常波,等.管幕预筑隧道地表沉降分析[J]. 岩土力学,2011,32(12):3701-3707. (Li Yongsuo, Zhang Keneng, Huang Changbo, et al. Analysis of surface subsidence of tunnel built by pipe-roof pre-construction method[J]. Rock and Soil Mechanics, 2011,32(12):3701-3707. (in Chinese))
[14] 黎永索,张可能,黄常波.管幕预筑隧道衬砌结构现场监测分析[J]. 岩土工程学报,2012,34(8):1541-1547.(Li Yongsuo, Zhang Keneng, Huang Changbo. Monitoring of lining structure of tunnels built by using pipe-roof pre-construction method[J]. Chinese Journal of Geotechnical Engineering, 2012,34(8):1541-1547. (in Chinese))
[15] 赵文,贾鹏蛟,王连广,等.地铁车站STS新管幕构件抗弯承载力试验研究[J]. 工程力学,2016,33(8):167-176. (Zhao Wen, Jia Pengjiao, Wang Lianguang, et al. Experimental study on the flexural capacity of steel tube slab members of subway stations[J]. Engineering Mechanics, 2016, 33(8): 167-176. (in Chinese))
[16] Jia P J, Zhao W, Guan Y P, et al. Experimental study on the flexural behavior of steel tube slab composite beams and key parameters optimization[J]. Advances in Structural Engineering, 2019, 22(11): 2476-2489.
[17] Lu B,Jia P J, Zhao W, et al. Longitudinal mechanical force mechanism and structural design of steel tube slab structures[J]. Tunnelling and Underground Space Technology, 2023, 132: 104883.
[18] Lu B, Dong J C, Zhao W, et al. Novel pipe-roof method for a super shallow buried and large-span metro underground station[J]. Underground Space, 2022, 7(1): 134-150.
[19] 韩林海.钢管混凝土结构—理论与实践[M].北京: 科学出版社,2007. (Han Linhai. Concrete filled steel tubular structure—theory and practice[M]. Beijing: Science Press,2007. (in Chinese))
[20] Lu B, Zhao W, Wang W T, et al. Design and optimization of secant pipe roofing structure applied in subway stations[J]. Tunnelling and Underground Space Technology, 2023, 135: 105026.
[21] 国家市场监督管理总局,国家标准化管理委员会.金属材料 拉伸试验 第1部分:室温试验方法(GB/T 228.1-2021)[S]. 北京: 中国标准出版社, 2021. (National Standardization Administration,State Administration for Market Regulation.Metallic materials-tensile test-Part 1: Test method at room temperature[S]. Beijing: Standards Press of China, 2021. (in Chinese))
[22] Lu B, Zhao W, Du X, et al. Analysis of ultimate bearing capacity and parameters of steel support cutting pipe roofing structure[J]. Transportation Research Record, 2022, 2676(4): 348-366.
