Where, Vs is the struck capacity, and Ve is the excess material capacity heaped either at 1:1 or at 1:2 angle of repose as shown in Fig. 7.1 (b). Firstly, from Fig. 7.2 struck capacity Vs equation will be presented, then by using two methodologies SAE and CECE, two equations of excess material volume or capacity Ve will be presented from Fig. 7.2.