人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
22期
54-57
,共4页
稳定分析%三维非线性有限元%超载分析%大岗山拱坝
穩定分析%三維非線性有限元%超載分析%大崗山拱壩
은정분석%삼유비선성유한원%초재분석%대강산공패
stability analysis%three dimensional non-linear FEM%overloading analysis%Dagangshan arch dam
大岗山水电站坝址区地形地质条件复杂、地震烈度高，整体稳定性控制难度大。基于大岗山拱坝的地质条件及基础加固处理措施，采用三维非线性有限元法，对正常工况下的坝体位移、应力和超载能力进行了计算分析，并使用超载法研究了大坝结构的整体稳定性。研究结果与国内其它高拱坝工程的对比分析表明，大岗山拱坝的整体稳定性较高，设计措施可行。
大崗山水電站壩阯區地形地質條件複雜、地震烈度高，整體穩定性控製難度大。基于大崗山拱壩的地質條件及基礎加固處理措施，採用三維非線性有限元法，對正常工況下的壩體位移、應力和超載能力進行瞭計算分析，併使用超載法研究瞭大壩結構的整體穩定性。研究結果與國內其它高拱壩工程的對比分析錶明，大崗山拱壩的整體穩定性較高，設計措施可行。
대강산수전참패지구지형지질조건복잡、지진열도고，정체은정성공제난도대。기우대강산공패적지질조건급기출가고처리조시，채용삼유비선성유한원법，대정상공황하적패체위이、응력화초재능력진행료계산분석，병사용초재법연구료대패결구적정체은정성。연구결과여국내기타고공패공정적대비분석표명，대강산공패적정체은정성교고，설계조시가행。
The geological conditions of Dagangshan Hydropower Station are complex and the earthquake intensity in the dam site area is high, so it is difficult to control the global stability of the dam. Based on the geological conditions and the reinforce-ment measures of foundation, the displacement and stress of the dam are calculated and analyzed by using the three-dimensional nonlinear FEM. Then the global structural stability of the dam is studied by overload method. Comparing with other high arch dam projects in China, the global stability of Dagangshan arch dam is relative higher, and the design measures are feasible.
