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Stress Variation Law and Support Technology for Surrounding Rock in Ultra-deep Roadways
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Shengkai WANG1, Jiaming LIU2, Zhigen ZHU2, Yisong YU2, Xugang FANG1, Huahua LI2, Libo LIU3
Mining and Metallurgical Engineering | 2025, 45(2) : 54 - 59
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Mining and Metallurgical Engineering | 2025, 45(2): 54-59
• MINING •
Stress Variation Law and Support Technology for Surrounding Rock in Ultra-deep Roadways
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Shengkai WANG1, Jiaming LIU2, Zhigen ZHU2, Yisong YU2, Xugang FANG1, Huahua LI2, Libo LIU3
Affiliations
  • 1.Yunnan Chihong Zn & Ge Co., Ltd., Qujing 654200, Yunnan, China
  • 2.CINF Engineering Co., Ltd., Changsha 410019, Hunan, China
  • 3.School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Published: 2025-04-01 doi: 10.3969/j.issn.0253-6099.2025.02.009
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As for a mine in Yunnan, the failure modes of surrounding rock in roadways buried at a depth of 1 500 m was analyzed by adopting a combination of theoretical analysis, in-situ monitoring and numerical simulation for exploring the variation law of surrounding rock stress. The results indicate that the surrounding rock in the main transportation roadway and the drift transportation roadway near the ore body at a depth of 1500 m predominantly belongs to Class Ⅰ and Class Ⅱ rock masses. The influence of stratum stability on the broken zone is greater than that of the roadway cross-sectional dimensions. Under the disturbances of surrounding rock stress, mining-induced stress and blasting loads, the stress in the arch corner of the roadway is higher than that in the side walls. Based on the failure modes of the surrounding rock, a support method combining rock bolts, steel mesh and shotcrete was proposed. The 3DEC numerical simulation results show that after support, the depths of the plastic zones in the side walls, roof and floor of the roadway are reduced by 0.5 m, 0.8 m and 0.6 m, respectively.

deep mining  /  roadway  /  plastic zone  /  surrounding rock  /  surrounding rock stress  /  support method  /  numerical simulation  /  failure mode  /  surrounding rock stability
Shengkai WANG, Jiaming LIU, Zhigen ZHU, Yisong YU, Xugang FANG, Huahua LI, Libo LIU. Stress Variation Law and Support Technology for Surrounding Rock in Ultra-deep Roadways[J]. Mining and Metallurgical Engineering, 2025 , 45 (2) : 54 -59 . DOI: 10.3969/j.issn.0253-6099.2025.02.009
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.02.009
  • Receive Date：2024-10-30
  • Online Date：2026-03-19
  • Published：2025-04-01
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History
  • Received：2024-10-30
Affiliations
    1.Yunnan Chihong Zn & Ge Co., Ltd., Qujing 654200, Yunnan, China
    2.CINF Engineering Co., Ltd., Changsha 410019, Hunan, China
    3.School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, 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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