立井凿井工作面预注浆技术研究

Study on Pre-grouting Technology on Shaft Sinking Face

由于立井施工技术复杂,作业场所狭小,工作环境恶劣,在施工过程中常由于地质条件因素,不同程度受到水害的影响。水害不仅造成工程进度缓慢,施工条件恶劣,对工程质量和施工人员安全也带来很大威胁。为了保证工程质量、进度及安全,常采用工作面预注浆达到防治水的目的。嵩山矿主井采用大段高注浆,有效地缩短了工期,提高了工程质量。

Due to the complexity of construction technology,the limited space of working,the severe condition of working places,constructions of shaft are usually effected by water hazards in different extent.Not only do water hazards make the progress of the projects slow and the condition of workplace bad,but also bring a significant threat to project′s quality and the safety of workers.To ensure the project′s quality,process and safety,pre-grouting methods were used frequently to prevent water hazards.The method of long-section pre-grouting was applied in main shaft of Songshan Mine,which shortened construction period,and improved the quanlity of project.