Abstract
Prediction of ground condition ahead of tunnel face is the most important practice during the construction of tunnel. Prior to excavation, geological condition are studied in order to avoid any potential excessive water ingress or tunnel collapse that may cause fatality. In addition, the prediction aids to upsurge the production and safety of the construction. Techniques on the prediction of ground condition ahead of tunnel face have significantly advanced over the years, there; Tunnel Seismic Prediction (TSP) and probe drilling method. In this study, probe drilling method data is chosen to study the ground condition and rock strength. This paper aims to predict the strength of rock based on the probe drilling record by using statistical method. Parameter studied taken from this probe drilling data is drilling speed. Based on this parameter, k-means clustering is used to cluster the drilling speeds that are possible to occur in relation to the ground condition. The changes of drilling properties observed during the probe drilling provide some indication on the strength of the ground, the presence large of cavities, type of rock and the presence of groundwater. The information records will be interpreted in order to forecast the anticipated ground condition. This paper provides a brief overview of the rock strength cluster encountered along the NATM-4 tunnel at Hulu Langat, Selangor.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
