Rock breaking has always been a challenging problem that must be solved in projects such
as excavating mountains, drilling wells, and constructing railways. Among the rock-breaking …

Building a high-accuracy utilization factor prediction model for tunnel boring machine with
limited available data is a research challenge. To solve the problem mentioned above, a …

Wear characteristics of disc cutter can vary significantly during shield tunnelling in different
geological formations. This paper presents a case study on disc-cutter wear experienced …

The technology of tunnel boring machine (TBM) has been widely applied for underground
construction worldwide; however, how to ensure the TBM tunneling process safe and …

Replacing damaged or worn disc cutters is costly and time-consuming, which can
significantly reduce the utilization and advance rate of tunnel boring machines (TBMs) …

This study employs a supervised learning method to predict the tunnel boring machine
(TBM) penetration rate (PR) with high accuracy. To this end, the extreme gradient boosting …

To prevent tunnel face collapse in heterogeneous ground, the applied face pressure in the
excavation chamber can be increased to stabilise the tunnel face, which may hinder cutter …

Varying results in cutter wear and cutting performance can be observed based on different
selections of shield operational parameters, particularly in hard rock or soil with a high …

During the construction of tunnels using tunnel-boring machines (TBMs), the wear of disc
cutters is an unavoidable process. The timely replacement of worn disc cutters can have a …

The shield tunneling method is commonly used in the development and construction of
underground spaces, and the adjustment of its parameters is a crucial part of shield …