Full
Outline
Chambishi Copper Mine is a typical high-water-inrush mine in Africa, and the hydrogeochemical study of its pit water inrush is crucial for groundwater prevention and control engineering. A total of 2 groups of surface river water samples and 16 groups of pit water inrush samples were collected. Using a combination of Piper trilinear diagrams, ionic ratio coefficients, and Phreeqc modeling, the hydrochemical characteristics and main controlling factors were analyzed, the water inrush sources of the main and western ore bodies were revealed, as well as the hydrochemical evolution mechanism. The results show that the hydrochemical type of pit water inrush is mainly SO4−Ca⋅Mg type, and the hydrochemical composition is mainly controlled by the dissolution of gypsum and dolomite, with a small amount derived from the dissolution of feldspar. The chert dolomite aquifer, serving as the main water filling source, is continuously distributed within the regional scope. Within the mining area, groundwater flows from the western ore body area to the main ore body area. Affected by the caving mining method in the main ore body area, the chert dolomite aquifer directly recharges the ore body aquifer. The quartzite aquiclude is unevenly distributed, with thinning or absence in some sections. Under natural conditions, there is a hydraulic connection between the chert dolomite aquifer and the ore body aquifer. Combining the current situation of the mining area and the hydrochemical characteristics of water inrush, the prevention and control strategy of “blocking as the main approach and drainage as the auxiliary” has been proposed, providing a basis for underground water prevention and safety production.
105
53
| 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
