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kpzg.people
11d
為隧道裝上岩爆“聽診器”
馮夏庭(中)在指導學生做實驗。 以上照片均為東北大學深部金屬礦山安全開採教育部重點實驗室提供 ...
中国网
11d
向地球深部進軍!他們為隧道裝上岩爆“聽診器”
岩爆是深部工程或深埋隧道建設過程中常見的一種動力災害。隨著隧道的開挖,原本緻密的岩石被挖走,一側淩空,另一側仍連接著原本的岩體。積蓄的能量可能在瞬間爆發,岩塊呈片狀四處飛濺,如同爆炸,這就是“岩爆”,其釋放的強大能量能讓一顆小石子變成“子彈”。
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