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Numerical Simulation and Settlement Mechanism of Shield Tunneling Construction in Composite Strata:Taking the Fuzhou Metro Binhai Express Line as an Example
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Zhi XIE1, Rensheng CHEN1, Zhijian LIN1, Wei ZHANG2
Science Technology and Industry | 2025, 25(3) : 37 - 45
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Science Technology and Industry | 2025, 25(3): 37-45
• Technology Innovation •
Numerical Simulation and Settlement Mechanism of Shield Tunneling Construction in Composite Strata:Taking the Fuzhou Metro Binhai Express Line as an Example
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Zhi XIE1, Rensheng CHEN1, Zhijian LIN1, Wei ZHANG2
Affiliations
  • 1 Xiamen Branch of CCCC Third Navigation Engineering Bureau Co., Xiamen 361021, Fujian, China
  • 2 School of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China
Published: 2025-02-10
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In order to explore the disturbance mechanism of shield construction on composite strata,taking the coastal composite strata as an example, and relying on the Fuzhou Coastal Line, the disturbance mechanism of shield tunneling in composite strata was investigated.A refined numerical model of shield tunneling was established based on the finite element analysis software ABAQUS, and four parameters were considered, including face support pressure, grouting pressure, jack thrust, and cutterhead torque. After validating the model with on-site monitoring data, the settlement patterns of five composite strata traversed by the shield tunneling in the actual project were examined. The results show that the closer to the excavation area of the shield machine, the greater the disturbance; when the tunnel passes through composite strata, it causes more significant cutting in the softer layer, increasing soil disturbance.

shield tunneling  /  composite strata  /  finite element  /  on-site monitoring  /  settlement patterns
Zhi XIE, Rensheng CHEN, Zhijian LIN, Wei ZHANG. Numerical Simulation and Settlement Mechanism of Shield Tunneling Construction in Composite Strata:Taking the Fuzhou Metro Binhai Express Line as an Example[J]. Science Technology and Industry, 2025 , 25 (3) : 37 -45 .
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Article Info
  • Receive Date：2024-08-13
  • Online Date：2025-07-21
  • Published：2025-02-10
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  • Received：2024-08-13
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Affiliations
    1 Xiamen Branch of CCCC Third Navigation Engineering Bureau Co., Xiamen 361021, Fujian, China
    2 School of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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