Page - 1497 - in Book of Full Papers - Symposium Hydro Engineering

potentially related to temporary sensor malfunction (likely due to the turbulent flow environment). Fig. 7 Displacement magnitude time series leading up to block removal. Hydrodynamic pressures measured on each of the block faces were used to calculate the active resultant force vector (R) applied to the block associated with the hydraulic loading from the spillway discharge [16]. Instantaneous measurements were averaged and plotted on a whole sphere, limit equilibrium stereonet in 2 hour increments leading up to removal of the block (Fig. 8). Note that the final resultant vector was calculated at 2:19 am on March 6, corresponding to last measurements obtained prior to failure of the pressure sensors. Fig. 8 Limit equilibrium stereonet for 3D stability of Block 2 showing average active resultant force vector (R) leading up to removal. 1497