摘要
为了减小坝肩拉应力,在沥青混凝土大坝设计中可以采用曲心墙形式。文章以辽宁省拟建的双龙水电站大坝为例,利用数值模拟的方法研究了心墙曲率变化对大坝应力位移特征的影响,结果显示曲心墙设计可以起到减小或消除坝肩拉应力的作用,且心墙曲率越大,上述作用越明显,且不会对大坝的压应力和位移造成明显影响,其结果对工程设计具有实际的应用价值。
In order to reduce the tensile stress of abutment,curved core wall can be used in the design of asphalt concrete dam.Taking the proposed Shuanglong Hydropower Station Dam in Liaoning Province as an example,the influence of the curvature of the core wall on the stress-displacement characteristics of the dam is studied by numerical simulation.The results show that the curved core wall design can reduce or eliminate the tensile stress of the abutment,and the larger the curvature of the core wall,the more obvious the above effect,and the dam has no obvious influence on the compressive stress and displacement of the dam,the results have practical application value for engineering design.
出处
《东北水利水电》
2021年第10期48-50,72,共4页
Water Resources & Hydropower of Northeast China
关键词
曲心墙
沥青混凝土心墙
数值模拟
应力
位移
curved core wall
asphalt concrete core wall
numerical simulation
stress
displacement
