摘要
分析煤矿深厚冲积层冻结法凿井井壁应用大于C80高强高性能混凝土的必要性和冻结法凿井内外层井壁混凝土应用的严酷环境,介绍深厚冲积层冻结法凿井井壁高性能混凝土研究、应用现状与取得的重大创新性成果,指出当前设计和施工应用大于C80高强高性能混凝土存在的问题和对策。
The paper had an analysis on a necessity of over C80 high strength and high performance concrete applied to the shaft liner by freezing sinking method in a mine deep alluvium and the applied harsh environment of the concrete for the inner and outer shaft liners in the freezing sinking shaft.The paper introduced the study and the application status on the high performance concrete of the mine shaft liner in the freezing sinking shaft in the deep and thick alluvium,the important innovation results obtained.The paper pointed out the existed problems and countermeasures on the present design and construction application of the C80 high strength and high performance concrete.
作者
李功洲
高伟
陈章庆
彭飞
LI Gongzhou;GAO Wei;CHEN Zhangqing;PENG Fei(Beijing China Coal Mine Engineering Company Limited,Beijing 100013,China;Beijing Research Institute of Coal Science Combined Application Technology,Beijing 100013,China)
出处
《建井技术》
2018年第4期45-48,共4页
Mine Construction Technology
关键词
深厚冲积层
冻结法
井壁
高强高性能混凝土
deep alluvium
ground freezing method
shaft liner
high strength and high performance concrete
