摘要
结合山西长治古城煤矿主斜井冻结工程实例,分析斜井冻结工程的特殊性,找到了顶部非冻结段及冻结管穿过开挖荒径以内部分局部冻结方法,成功地将井筒冻结冷量损失降低,节省近一半供液管,并对井筒掘进条件进行了改善,为今后类似斜井直孔施工的井筒冻结提供参考。
Combined with main inclined shaft freezing engineering examples of Shanxi Changzhi Gucheng Mine, the specials of inclined shaft freezing engineering was analyzed, top of the frozen section and frozen pipe through the excavation path within the part of the local freezing method was found out, which successfully reduced shaft freezing cold quantity, improved shaft conditions and provided reference for similar inclined shaft straight hole construction of shaft freezing.
出处
《煤炭与化工》
CAS
2015年第2期77-78,共2页
Coal and Chemical Industry
关键词
斜井
冻结法施工
局部保温
inclined shaft
freezing method construction
local heat preservation
