关键词: 大水矿山, 高深溜井, 溜井井壁治水

Abstract: It is of great practical significance to study the anti-clogging and safe ore drawing technolo⁃ gy of high-deep ore pass in water-rich mines for efficient ore drawing in underground mines. Based on the frequent blockage of high and deep ore pass in a water-rich water mine，the causes of main blockage are analyzed in detail according to the special material properties such as ore rock properties，water content，particle size，water absorption and adhesion，combined with the factors such as the depth of main ore pass，bottom structure and ore drawing management. On this basis，the key technical scheme of anti-clogging and ef⁃ ficient operation of main ore pass is put forward. Firstly，combined with the material characteristics and production conditions，the angle of the inclined chute of the main ore pass is optimized from 42 ° to 60 °，the heavy plate is extended and the bottom structure of the main ore pass is reformed to increase the ore drawing effect. Secondly，based on the principle of single ring straight hole drainage，the main ore pass wellbore water is treated to solve the problem of ore water content from the source. Finally，some production control mea⁃ sures are put forward，such as reasonable storage height of main ore pass，strict control of water content and particle size of ore material，and strengthening ore drawing of ore pass. After the transformation，the measured main ore pass watering is 0.4 m³/h，the average daily ore drawing is 6 060 t，and the ore drawing efficiency of the ore pass is significantly improved，which can provide reference for similar mines.

Key words: water-rich mine, high-deep ore pass, water control of ore pass wall