Nowadays there is a large number of tunneling projects in progress, mainly in Europe, both for roads and transport supplies. Performance prediction of tunnel boring machines (TBM) and the determination of some design parameters have become crucial, as they are critical elements in planning a project of mechanical excavation. In this paper we use the Discrete Element Method (DEM) to build models...

Tunnel boring machines often encounter clogging during excavation in strata with rich clay content. The can damage the cutterhead and interrupt excavation. Cutting tool clogging, also known as mud cake formation, has a strong effect on work efficiency. While current studies are focusing mechanism of engineering practice still heavily relies qualitative empirical judgement. To quantitatively ass...

Autonomous localization and operation of tunnel boring machines in perceptually degraded roadways is essential for intelligent upgrading tunneling. Tunneling robots are far less than anticipated owing to the darkness, dust, vibration, geometrically roadways. We presented a multi-engine state estimation method mapping localizing (TBM-MSE). TBM-MSE designed novel inertial enhancement model that m...

In this paper we describe the development and deployment of a wireless sensor network (WSN) to monitor a train tunnel during adjacent construction activity. The tunnel in question is a part of the London Underground system. Construction of tunnels beneath the existing tunnel is expected to cause deformations. The expected deformation values were determined by a detailed geotechnical analysis. A...

Ground surface settlement under subway tunnel construction is one of the main sources urban ground settlement, which may threaten safety existing buildings. Therefore, it necessary to study influence on and stability subsidence. In current study, originating from operation a tunnel-boring machine (TBM) while excavating double-line that underpasses buildings studied. To this end, numerical simul...

Uncertainty is often the most significant source of risk associated with a project in tunnel and underground construction. Unforeseen uncertainties can lead to construction problems leading reduced advances delays, cost increases, damage existing infrastructure and/or building equipment. The M5 metro line, which subject study, located Uskudar – Umraniye - Cekmekoy Sancaktepe district on Asian s...

Tunnelling in urban areas is growing response to efficient transportation, many tunnels are constructed soft ground at shallow depths. Urban usually as twin-parallel and their adjacent constructions may cause settlements that distort damage the existing structures utilities above tunnel. In past few decades, tunnel boring machines have been used drill increasingly difficult geotechnical conditi...