The shape of cross section of gravity dams under basic loads was optimized from an initial quadrilateral region with the stability of dam bodies against sliding and the tensile stress in dam heels taken as restraints.

• 以四边形为初始域，以重力坝的稳定和坝踵拉应力为约束条件，对基本荷载作用下的重力坝基本断面形状进行优化。