煤矿安全2019，Vol.50Issue(4)：164-168,5.DOI:10.13347/j.cnki.mkaq.2019.04.040
深厚钙质黏土层冻结井壁设计研究与应用
Study and Application of Deep Calcareous Clay Layer frozen Shaft Wall Design
摘要
Abstract
Through the analyzing the characteristics of deep calcareous clay strata and related hydrogeology in Dongjin air shaft of Guqiao Mine in Huainan area, combining with the change law of mechanical properties of frozen soil test, the paper gave the relationship between the value of the freezing pressure and the depth and the application of the coefficient of concrete strength improvement; the paper reasonably optimized the design of shaft wall structure under conventional conditions and proposed the technical control requirements of high strength and high performance concrete. Through the application in practice, its design support effect is remarkable.关键词
深厚钙质黏土/冻结法/井壁结构/混凝土强度/冻结压力Key words
deep and calcareous clay/freezing method/shaft lining structure/concrete strength/frozen pressure分类
矿业与冶金引用本文复制引用
张爱勇..深厚钙质黏土层冻结井壁设计研究与应用[J].煤矿安全,2019,50(4):164-168,5.基金项目
山东省自然科学基金资助项目(ZR2018PEE001,ZR2018MEE002) （ZR2018PEE001,ZR2018MEE002）
河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地开放基金资助项目(WS2017B05) （WS2017B05）
国家自然科学基金资助项目(51804176) （51804176）
