摘要
祁南煤矿安全改建工程中的三个井检孔所处新地层松散层厚度较大,且所含粘土层所占比例较高,特别是三隔粘土层平均厚110m,岩性为弱固结状的含钙质粘土、砂质粘土,在利用井筒冻结技术施工过程中,由于其技术难度较大,故在井筒设计和施工安全上应高度重视,最终满足"一矿二井"的安全生产管理模式。
The new stratigraphic in the three well inspection holes of safety reconstruct project in Qinan mine,which the thickness of losses bed is lager and contains a higher proportion of clay layer,especially the average thickness of the three aquifuge clay layer is 110 meter which the lithology is weak consolidated calcium-containing clay and sandy clay.In the process of using shaft freezing technology,because of this technology is more difficult,we need to pay great attention to the shaft design and construction shafty,to meet the safety production management mode of ＂one mine with two wells＂ finally.
出处
《淮南职业技术学院学报》
2011年第5期9-12,共4页
Journal of Huainan Vocational Technical College
关键词
井筒检查孔
施工技术
研究
monitoring shaft hole
construction technology
study
