Abstract:
In the shaft excavation process, well wall grouting, water sealing and plugging will be adopted in process of passing multi-layer surface sand aquifer and the sandstone aquifer of bedrock segment. This paper mainly introduces how to optimize the electromechanical auxiliary system and transform it before preventing and controlling water grouting in the wellbore after equipment construction, and reasonably solve the operation platform for grouting, which can not only realize the normal lifting of personnel above and below the shaft, but also meet the need of grouting in the shaft to achieve the goal of safe production. It is proved that the design is simple, economical, practical, safe and reliable.