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「钢鼠作业」苏联在建筑哈尔科夫公园的地下排水网时,采用不开挖和不移植树木的「钢鼠作业」。地下水平掘进的挖掘机自身装有直径为800到1600毫米的水管,挖掘作业
“Steel Mouse Operation” When the Soviet Union constructed the underground drainage network of Kharkiv Park, the “steel rat operation” was conducted without digging and transplanting trees. The excavation machine with horizontal underground excavation is equipped with a pipe with a diameter of 800 to 1600 mm, and excavation work