深厚冲积层冻结法C100高强高性能混凝土井壁结构设计  

Structure design of C100 high performance concrete shaft wall with ground freezing in deep thick alluvium

作　　者：张英 ZHANG Ying(ZhongYun International Engineering Co. , Ltd. , Zhengzhou 450007, Chin)

机构地区：[1]中赟国际工程股份有限公司,河南郑州450007

出　　处：《煤炭工程》2017年第9期10-13,共4页Coal Engineering

基　　金：国家"十二五"科技支撑项目"深厚冲积层冻结千米深井高性能混凝土研究和应用"(2011BAE27B03)

摘　　要：赵固一矿西风井井筒径净直径6.0m,井筒深度636.8m,穿过冲积层厚度502.51m,基岩风化段厚度28.69m。针对西风井穿冲积层厚、地质条件复杂的特点,为保证井筒施工的安全,设计井筒采用冻结法施工,冻结深度589m,冻结段井筒井壁采用双层钢筋混凝土塑料夹层复合井壁结构,内、外层井壁最大厚度分别为900mm、800mm。The diameter of western air shaft in Zhaogu No. 1 Coal Mine is 6. 0 m,and the depth is 636. 8m,which crosses the 502. 51 m thick alluvium and 28. 69 m thick bedrock weathering section. Aiming at the thick alluvium and complicated geological conditions,freezing construction is applied in the design,with a freezing depth of 589 m to ensure the safety of shaft construction. The double-layer reinforced concrete plastic sandwich composite shaft structure is used in the wellbore of the frozen section,maximum thickness of the inner and outer shaft wall is 900 mm and 800 mm respectively.

关 键 词：深厚冲积层 高强高性能混凝土 C100 井壁减薄 

分 类 号：TD265.3[矿业工程—矿井建设]