人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
22期
62-64,68
,共4页
张燕%唐宗敏%邵敬东
張燕%唐宗敏%邵敬東
장연%당종민%소경동
拱坝%体形设计%抗震%大岗山水电站
拱壩%體形設計%抗震%大崗山水電站
공패%체형설계%항진%대강산수전참
arch dam%configuration design%seismic resistance%Dagangshan Hydropower Staion
大岗山拱坝抗震设防等级较高,给大坝体形设计增加了难度。拱坝体形设计遵循“按静力设计,留有余地,同时兼顾动力”的设计思想。介绍了拱坝建基面和体形断面的确定和选取过程。采用拱梁分载法,对坝体位移、应力进行了静力分析。计算表明,几种组合工况下,坝体应力、位移分布较为对称,拱坝坝基面基本处于受压状态,只在拱座局部产生拉应力,应力状态良好。
大崗山拱壩抗震設防等級較高,給大壩體形設計增加瞭難度。拱壩體形設計遵循“按靜力設計,留有餘地,同時兼顧動力”的設計思想。介紹瞭拱壩建基麵和體形斷麵的確定和選取過程。採用拱樑分載法,對壩體位移、應力進行瞭靜力分析。計算錶明,幾種組閤工況下,壩體應力、位移分佈較為對稱,拱壩壩基麵基本處于受壓狀態,隻在拱座跼部產生拉應力,應力狀態良好。
대강산공패항진설방등급교고,급대패체형설계증가료난도。공패체형설계준순“안정력설계,류유여지,동시겸고동력”적설계사상。개소료공패건기면화체형단면적학정화선취과정。채용공량분재법,대패체위이、응력진행료정력분석。계산표명,궤충조합공황하,패체응력、위이분포교위대칭,공패패기면기본처우수압상태,지재공좌국부산생랍응력,응력상태량호。
The aseismic grade of Dagangshan arch dam is high, which increases the configuration design difficulty. The desig-ning engineers followed the principle of static force design with redundancy and giving consideration to dynamic condition. The selection and determination process of foundation plane and cross section are introduced. The displacement and stress of dam body are analyzed by using arch-cantilever load division method. The results show that the distribution of displacement and stress is symmetrical under the cases combination;the most of dam foundation plane is in compression except for the tensile stress in some parts of the arch abutment.