In the case of the special situation in using process of the cage position restriction service of Chacheng Coal Mine of Xuzhou Mining Bureau Corporation and through construction design and change the surface material,the author reconstructed the former structure.
针对徐州矿务集团土宅城煤矿副井罐笼罐耳使用过程中出现的特殊情况,通过结构设计及表面材料处理对原有结构进行了改造。