Study on Surface Deformation and Movement Caused by Deep Continuous Mining of Steeply Inclined Ore Bodies

Yanhui Guo (), Luo Luo, Rui Ma, Shunyin Li, Wei Zhang and Chuangye Wang
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Yanhui Guo: Faculty of Public Safety and Emergency Management, Kunming University of Science and Technology, Kunming 650093, China
Luo Luo: Faculty of Public Safety and Emergency Management, Kunming University of Science and Technology, Kunming 650093, China
Rui Ma: Faculty of Public Safety and Emergency Management, Kunming University of Science and Technology, Kunming 650093, China
Shunyin Li: Faculty of Public Safety and Emergency Management, Kunming University of Science and Technology, Kunming 650093, China
Wei Zhang: Zhongxing Shuchuang (Yunnan) Technology Co., Ltd., Kunming 650011, China
Chuangye Wang: Engineering Technology Research Institute of PetroChina Coalbed Methane Co., Ltd., Xi’an 710082, China

Sustainability, 2023, vol. 15, issue 15, 1-23

Abstract: In order to study the surface movement and deformation law of deep continuous mining of steeply inclined orebodies in high-stress areas, the surface movement and deformation law of deep continuous mining by caving method in the Shizishan mining area was studied based on the field fissures investigation, GPS monitoring, and large-scale geotechnical engineering numerical simulation software FLAC3D 5.0. The results show that with deep continuous mining of the orebody, surface fissures, and monitoring displacement are rapidly increasing. After the stoping of different sublevel orebodies, there will be an obvious settlement center on the surface, and the horizontal surface displacement also shows a trend of gradual increase. The results indicate that surface subsidence at the mine site is in an active development phase. The research results are of great significance to the prevention and control of surface rock movement disasters in mining areas.

Keywords: high-stress area; steeply inclined orebody; GPS monitoring; surface movement; FLAC 3D (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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