Risk management plays a vital role in ensuring the safety and efficiency of tunnel construction by considering various factors, including uncertainties associated with concurrent adverse sources. One key aspect risk is prioritizing hazardous zones to devise an optimal countermeasure plan within time cost constraints. This study developed advanced model, combining analytic hierarchy process (AHP...

The advance rate (AR) of a tunnel boring machine (TBM) under hard rock conditions is key parameter in the successful implementation tunneling engineering. In this study, we improved accuracy prediction models by employing hybrid model extreme gradient boosting (XGBoost) with Bayesian optimization (BO) to TBM AR. To develop proposed models, 1286 sets data were collected from Peng Selangor Raw Wa...

During mechanical tunnel driving it is known that the excavated soils can stick to metallic part of boring machine (TBM). Despite fact several test methodologies have been developed during last 15 years provide an assessment or quantification clogging risk, no standardized method available yet. This study evaluated three natural clay samples with different grain size distribution and mineralogi...

Abstract The ground conditions beyond an excavation face, especially discontinuities in rock masses, have a significant influence on tunnel construction. However, the actual observed during construction are often different from predicted geotechnical site explorations carried out design stage. Changes may require alterations design, leading to substantial disruptions schedule and budget. In thi...