Analysis of the Utility Tunnel Joint's Stress Characteristics Under Well Point Precipitation Conditions

Authors

  • Ben Li
  • Xinsheng Zhang

DOI:

https://doi.org/10.54097/m2jp0015

Keywords:

Utility Tunnel; Wall Point Precipitation; Groundwater Level; Finite Element Model.

Abstract

The method by which groundwater influences subsurface buildings is relatively complex in the groundwater-rich regions of southern China. Notably, it substantially affects the pipe corridor junctions, which are crucial to impermeability. In order to analyze the forces on the utility tunnel joints during well-point precipitation, numerical modeling of the utility tunnel joints using the well-point precipitation method based on Finite element software was carried out, and a precipitation model tank was made to verify the model parameters and boundary restrictions. The results indicate that under well-point precipitation, the force variation of the bottom plate is more significant than that of the top plate at the same port and that in the joint section close to the precipitation point, the force variation of the bottom plate can reach 2-3 times that of the top plate. The spigot joint's bottom plate has a maximum tensile stress of 319.52 kPa, which raises the possibility of tensile damage. The well-point dewatering method has a higher likelihood of bottom plate cracks, which makes it a critical component to be watched during construction and operation.

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References

Curiel-esparza J, Canto-perello J, Calvo MA. (2004) Establishing Sustainable Strategies in Urban Underground Engineering. Science and Engineering Ethics 10(3):523–530.

Canto-perello J, Curiel-esparza J, Calvo V. (2016) Strategic Decision Support System for Utility Tunnel’s Planning Applying A’wot Method. Tunnelling and Underground Space Technology Incorporating Trenchless Technology Research 55:146-152.

LEI Shengxiang, Shen Yanjun, Xiao Qinghua, Xi Jiami, Gu Linjun. (2019) Present Situations of Development and Utilization for Underground Space in Cities and New Viewpoints for Future Development. Chinese Journal of Underground Space and Engineering 15(04):965-979. (in Chinese)

Li Xiaojun, Liu Yupeng, Wang Yu. (2017) Recent Achievements and Future Trends for Urban Underground Space Data Standardization. Chinese Journal of Underground Space and Engineering 13(02):287-294. (in Chinese)

Yonglin An, Jin Zhou, Wenxuan Hu, Jiahao Li, (2022) Effect of Water on Tunnel Face and Surrounding Rock Deformation. Indian Geotech J 52, 1–12.

Encarnación Martínez‐Moreno, Iván Alhama Manteca, Gonzalo García‐Ros. (2019) Network model for the numerical solution of groundwater flow: Application to partially penetrating retaining structures in geotechnical engineering. Computational and Mathematical Methods 1(4):58-67.

P. Gattinoni, L. Scesi. (2017) The groundwater rise in the urban area of Milan (Italy) and its interactions with underground structures and infrastructures. Tunnelling and Underground Space Technology incorporating Trenchless Technology Research 62:167-177.

E Vasilyeva, A Vyaltsev, E Yakovenko. (2019) Safety and Reduction of Technology-Related Risks in the Process of Earth Dams’ and Dams’ Operation. IOP Conference Series: Earth and Environmental Science 272(2):176-188.

Aswathy, M.S. et al (2020) Prediction of Surface Settlement Due to Deep Excavation in Indo-Gangetic Plain: A Case Study. Indian Geotech J 50, 620–633.

Guangli Xu, Guangda Xu, Shigai Fan, Hongliang Tao, (2015) Impact analysis of groundwater flow changes by underground engineering. Geotechnical Investigation& Surveying 43(01): 41- 44+58. (in Chinese)

Wen Jie Song, Jun Dong, De Hua Liu. (2014) Investigations of Influence of the Variation of Underground Water Levels to the Structural Performance of the Existed Subway Station. Advanced Materials Research 3456:399-404.

J. Mamaghanian, B. V. S. Viswanadham, H. R. Razeghi. (2019) Centrifuge model studies on the performance of geocomposite reinforced soil walls subjected to seepage. Geosynthetics Internationa 1-50.

Maimunah, M. Yeni, D. Kumala. (2019) The Influence of Water Level Fluctuation Reservoir Stability of the Earth Dam. IOP Conference Series: Materials Science and Engineering 506(1):112-124.

Wu Jinglong, Xie Zhongqui, Xu Jian, Jiang Lianzi. (2020) Mechanical properties of single-cabin rectangular vertical prefabricated pipe gallery. Chinese Journal of Applied Mechanics 37(03):1065-1072+1391. (in Chinese)

Li Libing, Hou Xingmin, Li Yuandong. (2021) A finite element method for calculating the influence radius of foundation pit dewatering. Rock and Soil Mechanics 42(02):574-580. (in Chinese)

Wu Jinglong. (2019) Study on the Mechanical Behavior of Underground Comprehensive Pipe Gallery under Heterogeneous Foundation. Changsha, Central South University of Forestry and Technology. (in Chinese)

WANG Pengyu, WANG Shuhong, JIERULA Alipujiang, LIU Weihua. (2018) Umerical Simulation and Analytical Study on Mechanical Behavior of Cast-in-Place Utility Tunnel Joint. Journal of Northeastern University (Natural Science) 39(12):1788-1793. (in Chinese)

Zeng Chaofeng, Wang Shuo, Sone Weiwei, Li Miaokun, Xue Xiuli, Mei Guoxiong. (2021) Control effect of cross walls on metro foundation pit deformation induced by pre-excavation dewatering in soft soils. Chinese Journal of Rock Mechanics and Engineering 40(06):1277-1286. (in Chinese)

Gao You, Sun Dean, Zhang Junran, Luo Ting. (2019) Soil-water characteristics of unsaturated soils considering initial void ratio and hydraulic path. Chinese Journal of Geotechnical Engineering 41(12): 2191-2196. (in Chinese)

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Published

12-06-2024

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Section

Articles

How to Cite

Analysis of the Utility Tunnel Joint’s Stress Characteristics Under Well Point Precipitation Conditions. (2024). Academic Journal of Science and Technology, 11(2), 50-56. https://doi.org/10.54097/m2jp0015

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