矿业工程
礦業工程
광업공정
MINING ENGINEERING
2014年
5期
43-45,46
,共4页
尾矿库%动力反应%液化分析%稳定性
尾礦庫%動力反應%液化分析%穩定性
미광고%동력반응%액화분석%은정성
tailings pond%dynamic response%liquidation analysis%stability
通过对御驾泉尾矿库在地震作用下的动力反应及液化分析，比较345 m和370 m筑坝两种工况，得出坝体在特征地震波作用下，动力反应不显著，只在水面区域变形稍大，坝体形态较完好。地震产生的超孔隙水压力的消散总是在地震结束后，采用瑞典法和简化毕肖普法分析表明，震后坝内安全系数变化不大，均满足规范要求。为保证坝体安全应加强坝内浸润线观测，当浸润线埋深小于6m时，应及时采取工程措施。
通過對禦駕泉尾礦庫在地震作用下的動力反應及液化分析，比較345 m和370 m築壩兩種工況，得齣壩體在特徵地震波作用下，動力反應不顯著，隻在水麵區域變形稍大，壩體形態較完好。地震產生的超孔隙水壓力的消散總是在地震結束後，採用瑞典法和簡化畢肖普法分析錶明，震後壩內安全繫數變化不大，均滿足規範要求。為保證壩體安全應加彊壩內浸潤線觀測，噹浸潤線埋深小于6m時，應及時採取工程措施。
통과대어가천미광고재지진작용하적동력반응급액화분석，비교345 m화370 m축패량충공황，득출패체재특정지진파작용하，동력반응불현저，지재수면구역변형초대，패체형태교완호。지진산생적초공극수압력적소산총시재지진결속후，채용서전법화간화필초보법분석표명，진후패내안전계수변화불대，균만족규범요구。위보증패체안전응가강패내침윤선관측，당침윤선매심소우6m시，응급시채취공정조시。
Through analysis of dynamic response and liquidation of Yujiaquan tailings pond,comparison is made on working conditions of two dams with elevation of 345m and 370m respectively and it came to the conclusion that dam body has inconspicuous dynamic responses and basically remain intact under the influence of specific seismic wave,only having large deformation around water surface.Quake-incurred excess pore water pressure always dissipates after quake was over.Analysis is made by use of Sweden method and simplified bishop method and the results show that post-earthquake safety coefficients of dams vary slightly but still meet specification requirements.To ensure safety of dam body,more strict observation shall be kept on phreatic line of dam and engineering measures shall be taken without delay when buried depth of phreatic line is less than 6 m.
