In order to suit the specific topographic and geological conditions of Geheyan in the Qingjiang drainage area, the Geheyan dam is designed creatively as a single curvature and three center gravity arch dam with gravity superstructure and sloping joint closure under the gravity part.

For this reason,the method of finite element simulation analysis is used to study the problems of closing arch for grouting of high arc.

Due to the outer thermal current,the surface concrete could not cool to the temperature of closing arch in summer.

Multiobjective linear programming method of determining joint closure temperature field for arch dam;

In order to find reasonable closure process anad regulate stressing features of arch dam.