290 / 2023-10-10 21:04:00

Seamless Navigation and Positioning for Mining Area and Surficial Construction Deformation Monitoring Technology and Application

Deformation Monitoring, Mining Area, Seamless Navigation and Positioning

In order to reduce the damage to construction land and farmland in mining areas, prevent disasters such as mining subsidence and surface fire, and solve the navigation and positioning problems in the complex environment of mining areas, the following research is carried out and progress is made. This study proposed an elastic integrated navigation strategy, developed the first domestic intelligent elastic navigation and control system prototype, which has been applied in the navigation and positioning in large mining areas. In addition, our team has established the only national level Beidou Data processing and analysis center in Jiangsu Province. Relying on the center, the real-time centimeter-millimeter level deformation monitoring of the mining area slope, tailings pond, buildings and wellbore is realized. The deformation monitoring method of sequential InSAR and pixel tracking technology and the combination of temporal distributed target InSAR and mining subsidence model is proposed. The cooperative deformation mechanism of filling body and covering rock was established, and a simple and practical prediction method of surface movement and deformation of filling mining is established; The remote sensing identification method of interferometric radar and thermal infrared remote sensing and snow recognition is studied, and the study successfully identified the annual range of variation in the fire zone, improving the accuracy and reliability of underground coal fire identification. Combining the structure, material and operation status of the building itself and the influence of human underground mining activities, through the deformation monitoring of mining structures, the theory and method of deformation monitoring are improved.