关键词: 煤矿立井, 井筒偏斜, 监测, 治理

Abstract: In order to solve the problem of mine shaft deflection and improve the stability of the mine， taking the main shaft and auxiliary shaft of Yingpanhao Coal Mine as the research object，based on the anal‐ ysis of the geological conditions of the mine，a simple and convenient steel wire cycloid measurement tech‐ nology is proposed. The plane coordinate system of the suspended datum line is determined by the method of traverse measurement，and then the shaft coordinate of the monitoring point position can be determined ac‐ cording to the coordinate of the steel wire，and the continuous and stable monitoring of the shaft deflection is realized. According to the analysis of the time and space characteristics of shaft deflection，it is found that the deflection of shaft has experienced three stages of rapid growth，deflection mitigation and stability. The main well and auxiliary well are affected by the underground goaf，and the deflection in the east-west direc‐ tion exceeds 300 mm，which is dangerous. Through the single hole multi-layer grouting correction technolo‐ gy，the effective correction of shaft deviation can be realized，and the deviation of the main shaft in the east�west direction is reduced by 21.7%，and the deviation in the north-south direction is reduced by 2.1%. The deviation of the auxiliary shaft in the east-west direction is reduced by 27.7%，and the deviation in the north-south direction is reduced by 87.8%，which improves the stability of the shaft and has great applica‐ tion and promotion value.

Key words: shaft in coal mine, shaft deflection, monitoring, control