Status and Prospects of Mining Damage and Protection Technology of High Voltage Transmission Line lron Tower

In order to fully understand the deformation features of the high voltage transmission line iron tower under the mining influences and to solve the coal mi ning problem of the mine faced under the high voltage transmission line iron tower, from the study on the surface ground subsidence control, the coal mining practices u nder the high voltage transmission line iron tower, the mining affected to the high voltage transmission line and the iron tower, the protection technology of the high volt age transmission line iron tower and others, the paper summarized and analyzed the study status of the mining damage and protection technology of the high voltage tr ansmission line iron tower at home and abroad.The analysis results showed the high voltage transmission line iron tower would not be a single isolated building and wo uld be a space structure system consisted with foundation, iron tower structure and conducted line.There was a difference between the deformation law of he iron tower and the general high buildings. The available damage evaluation and protection theory of the buildings and structures in the mining area would not be suitable.The pape r pointed out that the coal mining safety protection theory and technical measures under high voltage transmission line iron tower should be studied and established ba sed on the foundation base, iron tower structure and line route coordinated deformation theory.