Full
Outline
Since the filling mining technology was adopted in Jinchuan Longshou Mine, the filling quality has not been systematically studied. Based on this, a follow-up survey of the filling quality of the downward layered cemented filling method in Jinchuan Longshou Mine was carried out for half a year, and the key factors affecting the filling quality were analyzed. Combined with the results of investigation and research, the filling quality control measures were put forward. The survey results show that the quality of mine filling materials is poor, the filling body is not completely connected to the roof, the strength of the filling body fluctuates greatly, and the number of abnormal parking times has a great impact on the filling quality. The field practice shows that the filling quality can be improved by ensuring the unit consumption of cementitious materials and the quality of filling materials, improving the roof-contacted filling rate, reducing the frequency of abnormal parking, improving the uniformity of slurry and ensuring reasonable mass concentration of slurry.
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| 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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