Cutter spacing is one of the key factors affecting the rock breaking efficiency of Tunnel
Boring Machine (TBM). In the excavation of deep soft rock tunnels, the water content can …

The initial stress is a crucial factor influencing the selection of cutter spacing and rock
fragmentation efficiency in tunnel boring machine (TBM) operations. This study aims to …

The cutters on the cutterhead of a tunnel boring machine (TBM) are usually divided into
center cutters, face cutters, and gage cutters, and have significantly different force …

Based on the discrete element method (DEM)-continuum mechanics coupling method, a
numerical simulation analysis is carried out to model cutting some existing bridge piles that …

Determination of the TBM disc cutter performance at the optimum rock cutting condition is
very important, but the existing theoretical, laboratory, numerical or empirical methods still …

Abstract Tunnel Boring Machine (TBM) cutter ring is prone to collapse, fracture, wear, and
other types of failures when dealing with hard rock/extremely hard rock. In order to address …

Understanding the force state of disc cutters in advance is of great practical significance to
predict the dynamic response during mechanical excavation and provide data information …

In this study, we address the complex geological conditions encountered during tunnel
boring machine (TBM) excavation, particularly the challenges posed by soft and hard …

To compare the rock breaking mechanism of the tunnel boring machine (TBM) hob under
traditional condition and free-face condition, a series of rock cutting tests and rock cutting …

This study presents the results of full-scale hard rock (granite) cutting experiments using
tunnel boring machine disc cutters at different free-face conditions. Rolling cutting tests are …