CAJ | 학술논문

向家坝混凝土重力坝具有坝高、库容大、坝基岩体破碎、地震设防烈度高等特点。为探讨大坝抗震稳定性，采用材料力学、线弹性有限元、非线性有限元方法，对非溢流坝段的应力、稳定及极限抗震能力进行了深入研究，获得了向家坝重力坝在地震作用下的动力特性和超载安全系数。针对坝段头部、坝踵部位、上游面变态混凝土内等薄弱部位提出了相应的工程处理措施，以增强混凝土重力坝的抗震性能。
향가패혼응토중력패구유패고、고용대、패기암체파쇄、지진설방열도고등특점。위탐토대패항진은정성，채용재료역학、선탄성유한원、비선성유한원방법，대비일류패단적응력、은정급겁한항진능력진행료심입연구，획득료향가패중력패재지진작용하적동력특성화초재안전계수。침대패단두부、패종부위、상유면변태혼응토내등박약부위제출료상응적공정처리조시，이증강혼응토중력패적항진성능。
Xiangjiaba Hydropower Station is characterized as high gravity dam , large storage capacity , crushed rock dam foun-dation and high seismic intensity .To analyze the anti -seismic stabilities, the stress, stability and the ultimate seismic resistance capacity of the non-overflow dam monolith are deeply studied to acquire dynamic characteristics and overload security coeffi -cients by using the mechanics of materials , linear elastic finite element , and nonlinear finite element .Afterwards, the corre-sponding construction measures are put forward to enhance the seismic resistance performance for the weak parts such as the dam head, dam heel, and the abnormal concrete in inner part of upstream face .