液氮冻结法在竖井施工方面的应用  

The application of liquid nitrogen freezing method in shaft construction

作　　者：张颖君[1] 褚衍坡[1] 徐国庆[1] 

机构地区：[1]中国矿业大学建筑工程学院

出　　处：《山西建筑》2010年第7期108-109,共2页Shanxi Architecture

摘　　要：论述了利用液氮法进行冻结的实例,解决了竖井漏水产生的动水难以封堵的问题,同时满足了工期要求紧,四周环境对冻胀融沉要求高的要求,指出液氮冻结法具有冻结速度快、施工简便、周期短、对周围环境影响小的特点。It pointed out that liquid nitrogen freezing method had the characteristic of quick freezing speed,simple construction and short period,little influence on surrounding environment.The example of freezing using liquid nitrogen method was discussed in this paper,which solved the problem of blocking moving water caused by shaft leakage difficultly,meanwhile satisfied the demand of short construction period and high requirement of surrounding environment to frost heave and thawing settlement.

关 键 词：液氮 竖井 冻结加固 

分 类 号：TU94[建筑科学—建筑技术科学]