煤矿安全2019，Vol.50Issue(2)：161-164,4.DOI:10.13347/j.cnki.mkaq.2019.02.038
质量缺陷及粉化破裂立井井壁治理措施
Treatment Measures of Quality Defects and Fractured Shaft Wellbore
姜希印 1周玉华 1刘体军 1程继东 1钱自卫2
作者信息
- 1. 兖州煤业股份有限公司 济宁二号煤矿,山东 济宁 272000
- 2. 中国矿业大学 深部岩土力学与地下工程国家重点试验室,江苏 徐州 221116
- 折叠
摘要
Abstract
The defects, cracks, and leakage of the shaft wellbore in Jining No.2 Coal Mine seriously threaten the safety of wellbore operators and equipment. The investigation, field test and water quality were used to show that the poor quality control of concrete pouring in the well wall and the water outlet of the well wall are the main reasons for the defect and fracture of the well wall. In this paper, the overall treatment plan of "leakage point chemical grouting sealing + defect area anchor net injection repair + wall surface silane impregnating corrosion" is developed. At present, the well wall has been repaired for nearly a year, and no new ruptures or leakage occurred. The experience can be used for similar projects.关键词
立井井壁/质量缺陷/修复/注浆/硅烷浸渍Key words
shaft wellbore/quality defects/repair/grouting/silane impregnation分类
矿业与冶金引用本文复制引用
姜希印,周玉华,刘体军,程继东,钱自卫..质量缺陷及粉化破裂立井井壁治理措施[J].煤矿安全,2019,50(2):161-164,4.
