煤炭与化工2024，Vol.47Issue(11)：5-8,15,5.DOI:10.19286/j.cnki.cci.2024.11.002
平朔井工三矿综放工作面断层带高水材料注浆加固技术实践
Practice of grouting reinforcement technology of high water material in fault zone of fully mechanized caving face in Pingshuo No.3 Mine
王宏吒1
作者信息
- 1. 山西汇永能源工程有限公司,山西朔州 038500
- 折叠
摘要
Abstract
No.4 coal fault is developed in No.2 mining area of Pingsuo Jinggong No.3 coal mine.Roof fall and rib spalling occur in the mining of working face,which poses a threat to safety production.Therefore,the research on fault grouting reinforcement technology was carried out in 34205 working face.The advantages and disadvantages of the current main grouting materials are compared and analyzed,and the high water material grouting is determined.Combined with the material properties,the water cement ratio is 2∶1.According to the distribution of faults,four grouting drilling holes were designed,and the drilling depths were 45,60,90 and 100 m respectively.There are 36 grouting boreholes in the actual construction site,with a total depth of 2 776 m,grouting material dosage of 78.11 t and grouting volume of 193.03 m3.The working face is normally pushed in the control fault area,and no abnormal mine pressure appears.关键词
综放工作面/注浆加固/高水材料/矿压显现Key words
fully mechanized caving face/grouting reinforcement/high water material/mine pressure appearance分类
矿业与冶金引用本文复制引用
王宏吒..平朔井工三矿综放工作面断层带高水材料注浆加固技术实践[J].煤炭与化工,2024,47(11):5-8,15,5.
