人民黄河
人民黃河
인민황하
Yellow River
2014年
1期
100-103,106
,共5页
三维有限元法%施工过程%仿真计算%封拱灌浆%碾压混凝土拱坝
三維有限元法%施工過程%倣真計算%封拱灌漿%碾壓混凝土拱壩
삼유유한원법%시공과정%방진계산%봉공관장%년압혼응토공패
three-dimensional finite element method%construction process%simulation calculation%closing arch for grouting%RCC arch dam
采用三维有限元法模拟某碾压混凝土拱坝的施工过程，进行了温控仿真计算，分析了该工程温度场和应力场的分布规律，提出了温控推荐方案。结果表明：采取初期、中期和后期冷却措施后，大坝的最高温度满足碾压混凝土坝设计规范要求，同时也满足封拱灌浆要求，最大温度应力小于混凝土的允许拉应力。
採用三維有限元法模擬某碾壓混凝土拱壩的施工過程，進行瞭溫控倣真計算，分析瞭該工程溫度場和應力場的分佈規律，提齣瞭溫控推薦方案。結果錶明：採取初期、中期和後期冷卻措施後，大壩的最高溫度滿足碾壓混凝土壩設計規範要求，同時也滿足封拱灌漿要求，最大溫度應力小于混凝土的允許拉應力。
채용삼유유한원법모의모년압혼응토공패적시공과정，진행료온공방진계산，분석료해공정온도장화응력장적분포규률，제출료온공추천방안。결과표명：채취초기、중기화후기냉각조시후，대패적최고온도만족년압혼응토패설계규범요구，동시야만족봉공관장요구，최대온도응력소우혼응토적윤허랍응력。
It simulated a RCC arch dam construction process,conducted temperature control simulation,analyzed the distribution rule of the tem-perature field and stress field and put forward the recommended scheme of temperature by using three-dimensional finite element method. The re-sults indicate that after the initial,intermediate and late phases of cooling measures,the maximum temperature of the dam meets the RCC dam de-sign specification requirements,but also meet the closure grouting requirements;the maximum temperature stress is less than the allowable tensile stress of the concrete.
