Automatic evaluation of USACE 1995 standard
Uplift pressures arising from reservoirs are accessible through the Uplift Pressures command. Figure 131 shows the main window indicating for each lift joint the corresponding uplift pressure standard to be used.
Automated evaluation of uplift pressures is based on the United States Army Corps of Engineers (USACE 1995) dam safety guidelines. Figure 132 shows the window for viewing the uplift pressure distribution which is activated after the user has chosen a joint from Figure 131 list and clicked the Properties button.
The user cannot change the distribution of the uplift pressures when the calculation is automated (distribution according to USACE 1995). The two tabs in Figure 132 provide the uplift pressure distribution for either the normal operating level (active tab) or the flood level. The values of H in the Figure represent the piezometric heights.