refers to the calculation of pile bearing capacity based on driving resistance—specifically the set (penetration per blow) and rebound (elastic compression). Traditionally done manually or with nomographs, engineers now leverage Microsoft Excel (XLS) to automate, standardize, and archive these calculations.
This article explores the core formulas, the parameters required, and how an XLS-based template revolutionizes this essential task. Kalendering is not just a record of hammer blows; it is a dynamic formula-based estimation of pile capacity. When a hammer strikes a pile head, the energy drives the pile downward. By measuring the penetration (set) for the last few blows, we can back-calculate the soil's resistance. perhitungan kalendering tiang pancang xls
However, remember: Garbage in, garbage out . Accurate field measurement of set and rebound is paramount. Use your XLS template as a decision-support tool, not a replacement for engineering judgment. While many templates exist online, always verify formulas and units. A reliable kalendering XLS should be validated with sample hand calculations or known PDA results. refers to the calculation of pile bearing capacity