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Influence of Bench Length in Benching Excavation on Stability of Tunnels in Water-Rich Ground
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Junji LU1, Xin CHENG2, Xiaobing YAN1, Peidong ZHAO2
Mining and Metallurgical Engineering | 2023, 43(6) : 29 - 33
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Mining and Metallurgical Engineering | 2023, 43(6): 29-33
• MINING •
Influence of Bench Length in Benching Excavation on Stability of Tunnels in Water-Rich Ground
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Junji LU1, Xin CHENG2, Xiaobing YAN1, Peidong ZHAO2
Affiliations
  • 1.Hunan Lianshao Construction Engineering (Group) Co Ltd, Changsha 410001, Hunan, China
  • 2.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
Published: 2023-12-01 doi: 10.3969/j.issn.0253-6099.2023.06.007
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In order to improve the construction efficiency in benching excavation for tunnels in water-rich ground, a main tunnel of Xiaomaliu tailings pond was taken as an example in the study. A three-dimensional digital model was constructed according to the actual situation of the project, and the fluid-structure interaction analysis was conducted by simulating benching excavation with three types of bench length. Then, the effect of benching construction with different bench length was analyzed in terms of seepage field, displacement field, stress field and plastic zone distribution of tunnel after construction, and a comprehensive evaluation was presented by using CRITIC algorithm. Results show that excavation with micro bench can bring the best construction effect for the tunnel in water-rich ground, followed by excavation with long bench, and excavation with short bench presents poor effect.

excavation method  /  benching tunnelling method  /  tunnel in water-rich ground  /  tunnel excavation  /  fluid-structure interaction  /  displacement field  /  stress field  /  plastic zone  /  CRITIC algorithm
Junji LU, Xin CHENG, Xiaobing YAN, Peidong ZHAO. Influence of Bench Length in Benching Excavation on Stability of Tunnels in Water-Rich Ground[J]. Mining and Metallurgical Engineering, 2023 , 43 (6) : 29 -33 . DOI: 10.3969/j.issn.0253-6099.2023.06.007
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Year 2023 volume 43 Issue 6
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.06.007
  • Receive Date：2023-06-23
  • Online Date：2026-03-05
  • Published：2023-12-01
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History
  • Received：2023-06-23
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Affiliations
    1.Hunan Lianshao Construction Engineering (Group) Co Ltd, Changsha 410001, Hunan, China
    2.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
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Citations
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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