Full
Outline
The safety and stability of the tailings pond are crucial for ensuring underground collaborative mining. To investigate the influence of the tailings pond on mine engineering, a three-dimensional geological-structural model of a certain lithium-containing porcelain stone mine was established using the coupled GTS/NX and FLAC3D modeling method, and the optimization of the sealing length of the +225 m adit within the inundation line of the tailings pond and the analysis of the influence of the tailings pond on the stability of ore body mining were conducted. The results show that significant changes are observed in the stress, displacement, and plastic zone of the surrounding rock of the adit under different sealing lengths. The optimal sealing length is determined to be 105 m, at which the tensile stress at the adit opening is reduced to 0.20 MPa, the displacement deformation is 8 mm, and no plastic zone is generated in the sealing area, so that the water pressure of the tailings pond can be effectively controlled and the stability of the adit can be ensured. It is found from the comparison of the mechanical responses of ore body mining under conditions with and without the tailings pond that, when the tailings pond is present, the tensile stress of the roof of the mined-out area is reduced from 0.87 MPa (under the condition without the pond) to 0.84 MPa, the displacement is reduced from 15 mm to 14 mm, and the plastic zone of the mined-out area is not connected with the surface or the plastic zone of the tailings pond. Therefore, under the current engineering and geological conditions, the tailings pond is not the dominant factor for the stability of ore body mining. However, stress and deformation monitoring still needs to be strengthened during the subsequent mining process. The research results can provide method reference and data support for the collaborative safety design and assessment of tailings ponds and underground mining in similar mines.
71
10
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
