OPTIMIZATION STUDY OF THE KUZ-RAM MODEL ON BLASTING PRODUCTS AT PT SEMEN PADANG, WEST SUMATERA

• Main Author: Fathul Rahmi, Riza
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/56509
• Institution: Institut Teknologi Bandung

Blasting geometry is one of the factors that will determine the result of blasting fragmentation. Result of blasting fragmentation plays an important role in determining the success of a blast. Fragmentation is one of the parameters of the success of a blast, where this fragmentation will affect the next stages, such as digging, hauling, and crushing. This requires careful calculations to estimate the size of crushed stone. Hard limestone has relatively compact physical properties with relatively high strength The fragmentation of the blasting itself is mostly analyzed using the Kuz-Ram model in the mining industry. However, at PT Semen Padang itself, this model cannot fully predict the distribution of this fragmentation quickly and accurately. This study was conducted to modified the Kuz-Ram model so that it can be used optimally to predict the distribution of fragmentation at PT Semen Padang. The results obtained a new form of the Kuz-Ram model by changing the value of X to 0.174 entered in the equation to predict the average size. In addition, a new equation in the form of uniformity index (n) is also obtained, namely by changing the value of n to 1,512. This new model is validated by actual data with a correlation coefficient of 0.999.