REN Z L, ZHU H Y, YUAN R F, et al. Review and prospects of 3D laser scanning technology in underground mining[J]. Journal of Henan Polytechnic University(Natural Science) , 2025, 44(3): 89-100.

doi:10.16186/j.cnki.1673-9787.2024070014

Received:2024/07/02

Revised:2025/02/15

Online:2025-04-18

Review and prospects of 3D laser scanning technology in underground mining

REN Zhuli1,2,3, ZHU Hongyang1, YUAN Ruifu1,3, WANG Shen1,3

1.School of Energy Science and Engineering， Henan Polytechnic University， Jiaozuo  454000， Henan， China；2.Henan Key Laboratory for Green and Efficient Mining & Comprehensive Utilization of Mineral Resources， Jiaozuo  454000， Henan， China；3.Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization， Jiaozuo  454000， Henan， China

Abstract: Significance This study reviews the research progress of 3D laser scanning technology in underground mining， exploring its applications in real-time monitoring， safety management， and precision mining. It also analyzes the advantages of Mobile Laser Scanning （MLS） and Terrestrial Laser Scanning （TLS） technologies in different mining environments to better serve underground mining operations. With the accelerated process of intelligent underground mining， 3D laser scanning technology， known for its ability to provide high-precision 3D spatial data， has become an important tool in areas such as underground mine safety monitoring， ore body modeling，  geological exploration， and mine digital management. By retrieving literature from both domestic and international databases， this paper reviews recent advancements in 3D laser point cloud technology and its applications in mining， discussing the current state of research and future development directions.  Progress  The results show that 3D laser scanning technology plays a key role in multiple areas of underground mining， particularly in rapid 3D modeling， rock mass structure identification， tunnel monitoring， support quality evaluation， goaf detection， positioning and navigation， and digital mine construction. Conclusions and Prospects  Although 3D laser scanning technology has demonstrated significant potential， several challenges remain in its practical application. First， the large volume of data generated by 3D laser scanning presents challenges in efficient processing and analysis， especially in real-time dynamic monitoring and large-scale data processing. Second， the complex and variable mining environment， coupled with harsh working conditions， places higher demands on the performance and stability of laser scanning equipment. Ensuring the adaptability and durability of the equipment in underground mining environments is one of the key technological challenges. Finally， achieving multi-sensor fusion technology to further enhance data accuracy and comprehensiveness is a focal point of current research.

Key words: underground mining; 3D laser scanning; 3D point cloud; digital mine; tunnel monitoring; positioning and navigation