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Discrete Element Method for Studying Instability of Shaft Surrounding Rock Under Water-Rock-Soil Coupling Effect
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Xiao LI1, Ming CHEN1, Bi TIAN1, Jianqiang GUO1, Xinli TONG1, Hui WANG2, Xuhui DENG2, Xianqiong TANG2
Mining and Metallurgical Engineering | 2026, 46(1) : 51 - 57
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Mining and Metallurgical Engineering | 2026, 46(1): 51-57
• MINING •
Discrete Element Method for Studying Instability of Shaft Surrounding Rock Under Water-Rock-Soil Coupling Effect
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Xiao LI1, Ming CHEN1, Bi TIAN1, Jianqiang GUO1, Xinli TONG1, Hui WANG2, Xuhui DENG2, Xianqiong TANG2
Affiliations
  • 1.Hunan Lianshao Construction Engineering (Group) Co., Ltd., Changsha 410125, Hunan, China
  • 2.School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, Hunan, China
doi: 10.3969/j.issn.0253-6099.2026.01.008
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For the first phase shaft project in the underground mining of Aurora Gold Mine, a discrete element method software EDEM was adopted, and a water-rock-soil coupled model for instability of shaft surrounding rock was established using the smoothed particle hydrodynamics discrete element coupling method (SPH-DEM), for investigating the instability evolution process of strongly weathered surrounding rock under effect of seepage. The results show that the surrounding rock of the shaft become significantly instable within 2-6 s, and the average moving velocity increases firstly and then decreases, peaking at 0.155 m/s; the fluid force acting on the shaft wall fluctuates sharply during 0-2 s and then gradually stabilizes. The shaft wall suffers large scale shallow abrasion, with a final wear area of 17.404 43 m2 and volume of 0.013 31 m3. Numerical simulation shows that the angle of repose for the collapsed shaft surrounding rock is 25°, presenting a relative error of only 1.88% compared to the on-site practical measurement, which has verified accuracy and practicability of such SPH-DEM method.

water seepage  /  surrounding rock instability  /  shaft  /  mine roadway engineering  /  shaft wall  /  surrounding rock stability  /  angle of repose  /  dynamic response  /  smoothed particle hydrodynamics (SPH)  /  discrete element method (DEM)
李潇, 陈明, 田毕, 郭建强, 仝新利, 王珲, 邓旭辉, 唐现琼. 水-岩-土壤耦合作用下竖井围岩失稳的离散元研究. 矿冶工程杂志, 2026 , 46 (1) : 51 -57 . DOI: 10.3969/j.issn.0253-6099.2026.01.008
Xiao LI, Ming CHEN, Bi TIAN, Jianqiang GUO, Xinli TONG, Hui WANG, Xuhui DENG, Xianqiong TANG. Discrete Element Method for Studying Instability of Shaft Surrounding Rock Under Water-Rock-Soil Coupling Effect[J]. Mining and Metallurgical Engineering, 2026 , 46 (1) : 51 -57 . DOI: 10.3969/j.issn.0253-6099.2026.01.008
Appendix
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Year 2026 volume 46 Issue 1
104
14
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Article Info
doi: 10.3969/j.issn.0253-6099.2026.01.008
  • Receive Date：2025-08-17
  • Online Date：2026-10-08
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  • Received：2025-08-17
Funding
Affiliations
    1.Hunan Lianshao Construction Engineering (Group) Co., Ltd., Changsha 410125, Hunan, China
    2.School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, Hunan, 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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