Sensitivity Analysis of Temperature Control Parameters and Study of the Simultaneous Cooling Zone during Dam Construction in High-Altitude Regions

Table 8

Effect of the amount and height of the simultaneous cooling zone on temperature stress.

Case	Height of the simultaneous cooling zone (m)	Basic restrain zone simultaneous cooling measure	Maximum temperature at the high restraint zone (°C)	Maximum tensile stress in the high restraint zone
				(Mpa)	Elevation (m)	Safety coefficient
Case  1	18	18 m below the 3,300 m elevation; Simultaneous cooling during the middle and second stages	24.15	1.65	3304.5	1.53
Case  2	18 + 27	On the basis of case 1, adding 27 m above the 3,300 m elevation	24.15	1.40	3304.5	1.81

Note: (1) 18 + 27 means that the first simultaneous cooling zone is 18 m, and the second one is 27 m.