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1983年7月东北工学院受国家黄金局的委托,在我国正式开展了砂金矿床泡沫冰封联合防冻法的研究工作.经过三年的努力,对泡沫冰封的技术和工艺已取得了突破性的进展.1985年12月在黑河金矿局罕达气金矿3~＃船采区试喷泡3000米~2,泡沫层厚10～30厘米不等.1986年4月对防护层进行了检查,其结果为敷冰泡厚10厘米左右的砂层冻结深0.8米,未复盖泡沫冰封层的地层冻结深度为1.5米.5月挖掘对比,防护区段砂层挖掘效率为90米~3/时,未防护区段挖掘效率为70米~3/时,挖掘效率提高28.6%.
In July 1983, Northeast Institute of Technology, commissioned by the State Department of Gold, formally launched a research work on foam frost formation and antifreeze method for gold and gold deposits in China. After three years of hard work, a breakthrough has been made in the technology and process of foam frost Of the progress in 1985 December Heihe Gold Mine Handa gas gold mine 3 ~ # mining area test spray foam 3000 meters ~ 2, foam layer thickness of 10 to 30 cm in April 1986. The protective layer was Check the results of the ice thickness of about 10 cm ice layer frozen 0.8 meters deep freeze, uncoated foam frozen layer frozen depth of 1.5 meters in May excavation contrast, protection zone sand mining efficiency of 90 meters ~ 3 / h, the excavation efficiency of unprotected section is 70m ~ 3 / h, the excavation efficiency increases by 28.6%.