This article investigates the application of eXtreme gradient boosting (XGBoost) and hybrid metaheuristics optimisation techniques to predict the axial load bearing capacity of fully grouted rock bolting systems. For this purpose. a comprehensive dataset of 72 pull-out tests was built. considering various influential parameters such as three water-to-grout (W/G) ratios. https://miabellesbabyes.shop/product-category/girls-4th-of-july-set/