“千米煤炭深井高强高性能混凝土技术”是中国建筑材料科学研究总院承担的“十二五”国家科技支撑课题“深厚冲积层冻结千米深井高性能混凝土研究与应用”的重要成果,课题组经过三年的攻关,将高强高性能混凝土和煤矿建井技术完美结合,使冻结法凿井用混凝土强度提高到了C100,解决了千米深井井壁应用C80~C100高强高性能混凝土设计和施工应用难题,实现了国内外首次利用C100混凝土设计和施工煤矿冻结法凿井井壁。成果一:攻克冻结法凿井外层井壁技术难关 “Deep coal mine high-strength high-performance concrete technology ” is undertaken by China Building Materials Academy “12 five ” national science and technology support topic “deep alluvium freeze thousands of meters deep well high performance concrete research and application ”After three years of key research projects, the group successfully combined high-strength and high-performance concrete with coal mine construction technology to increase the strength of the concrete for freezing shaft sinking to C100 and solved the problem of high wall strength of C80 ~ C100 High performance concrete design and construction problems, to achieve the first time at home and abroad using C100 concrete design and construction of mine freezing shaft sinking shaft. Outcome One: overcome the freezing method of sinking the outer shaft wall technology difficulties