By means of the finite element analysis, the deep hole structure plan, steel liner in the pressure section plan and the transverse joint grouting plan are deeply researched in order to decrease the outlet tensile stress and reduces the lays of t.

For the problem of dam-powerhouse connection type and flat joint grouting elevation of hydropower station,this paper establishes a three-dimensional finite element model by the mixed finite element method of the contact problem and calculates the deformation and stress variation of dam body,dam-powerhouse connection and powerhouse for the ten different joint grouting elevations,respectively.

The application of joint grouting technique in concrete dam construction of Xixiayuan project;

Supervision of joint grouting construction of I&Ⅱ bidding section of TGP;

Dam joint grouting in Wanjiazhai water complex;

533 M m3 , and water cooling and joint grouting in concrete structure at the middle section of it were first applied in the world; the transverse cofferdam that should be placed within 4 months has a maximum height of 115 m with a crest length of 580 m and a volume of 1.

By using emulative visco elasticity three dimension finite element method, the water pipe cooling for joint grouting of concrete dams has been studied in this paper.