冻土爆破在我国北方天寒地冻的条件下施工是个经常会遇到的问题。1985年1月,交通部第一工程局第一工程处在天津市东郊承担了高速公路施工任务,有一个沥青池急待施工,当时冻土深约0.5米,土方挖掘机能力小,不能解决,要求爆破公司采用控爆施工。我公司采用药壶法爆破冻土,对这种不太深的冻土取得了良好效果。 Permafrost blasting is a problem often encountered in the freezing conditions in the north of our country. In January 1985, the First Engineering Department of the First Engineering Bureau under the Ministry of Communications assumed the task of expressway construction in the eastern suburbs of Tianjin. There was an urgent need for asphalt pond construction. At that time, the permafrost was about 0.5 meters deep and the capacity of earthwork excavators was small. Solve, require blasting company using explosion control construction. My company uses the pot method blasting frozen soil, on this not too deep frozen soil has achieved good results.