發(fā)布時(shí)間：2018-04-19 19:52

  本文選題：尾礦庫 + 潰壩��； 參考：《金屬礦山》2017年12期

【摘要】：2017年3月12日凌晨2時(shí)20分,湖北大冶銅綠山銅鐵礦尾礦庫西北角發(fā)生了局部潰壩事故,下泄尾砂泥漿約50萬m3。在大冶尾礦庫潰壩現(xiàn)場考察和相關(guān)數(shù)據(jù)資料查閱的基礎(chǔ)上,分析了該尾礦庫的結(jié)構(gòu)特征、地質(zhì)環(huán)境特征與潰壩尾砂運(yùn)動(dòng)特征。利用無人機(jī)航拍技術(shù)獲取了大冶尾礦庫潰壩后的地貌高程數(shù)據(jù)并建立尾礦庫潰壩后的DSM模型,運(yùn)用DAN3D軟件建立了尾礦庫潰壩的動(dòng)力計(jì)算模型。通過對比Frictional模型、Bingham模型及Voellmy模型的模擬結(jié)果,認(rèn)為Voellmy模型可以較好地模擬潰壩全過程。模擬結(jié)果表明:大冶尾礦庫潰壩過程中尾礦泥石流運(yùn)動(dòng)持續(xù)時(shí)間為130 s,最大堆積深度為5 m,最大運(yùn)動(dòng)速度為20 m/s。
[Abstract]:At 02:20 on March 12, 2017, a local dam break occurred in the northwest corner of Tonglushan Copper Mine tailings Reservoir in Daye, Hubei Province, with a mud discharge of about 500000 m3. On the basis of site investigation and related data reference of dam break in Daye tailings reservoir, the structural characteristics, geological environment characteristics and movement characteristics of tailings in dam break are analyzed. The geomorphologic elevation data after dam break of Daye tailings reservoir were obtained by aerial aerial photography technology of UAV, and the DSM model after dam break of tailings reservoir was established. The dynamic calculation model of dam break of tailings reservoir was established by using DAN3D software. By comparing the simulation results of Frictional model and Voellmy model, it is concluded that Voellmy model can simulate the whole process of dam break. The simulation results show that the movement duration of debris flow in Daye tailings reservoir is 130 s, the maximum accumulation depth is 5 m, and the maximum velocity is 20 m / s.
【作者單位】： 海洋工程國家重點(diǎn)實(shí)驗(yàn)室(上海交通大學(xué));上海勝義環(huán)境科技有限公司;
【基金】：國家自然科學(xué)基金重點(diǎn)項(xiàng)目(編號:41530639)
【分類號】：TD926.4

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