Conception of in-situ fluidization mining for deep metal mines
Wu Aixiang,
Wang Hongjiang,
Yin Shenghua,
Ruan Zhuen
Affiliations
Wu Aixiang
Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
Wang Hongjiang
Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
Yin Shenghua
Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
Ruan Zhuen
Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
With the depletion of shallow surface metal mineral resources, China's underground metal mining was gradually transferred to deep mining (>1 000 m).Because of the special mining conditions of high stress, great lifting depth, and high temperature in deep mines, it is difficult to realize the safe, efficient, and economical exploitation of deep resources by using the traditional mining methodology.According to the trend of deep metal mineral resources, a novel idea of in-situ fluidization mining for deep metal mines was proposed.The definition, conception, and challenges were introduced.According to the transformation methods, in-situ fluidization mining can be divided into two parts: in-situ leaching mining, and integration of mining, processing and backfilling.Moreover, the major issues and challenges faced with in-situ fluidization mining, namely, deep rock mechanics, in-situ leaching mining theory, equipment of integration of mining, processing and backfilling, environment monitoring and reconstruction, intelligent and efficient mining, were expound.
