Results 31 to 40 of about 1,971,138 (125)

The behaviour of a two-component backfilling grout used in a Tunnel-Boring Machine [PDF]

open access: yes, 2011
The instantaneous filling of the annulus that is created behind the segment lining at the end of the tail during the TBM advance is an operation of paramount importance.
Borio, Luca   +2 more
core  

Experimental and design‐oriented research on fiber reinforced concrete segmental tunnel linings: A systematic review

open access: yesStructural Concrete, EarlyView.
Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov   +4 more
wiley   +1 more source

Prediction Method of TBM Tunneling Parameters Based on PSO-Bi-LSTM Model

open access: yesFrontiers in Earth Science, 2022
With the wide application of full-face rock tunnel boring machine (TBM) in tunnel construction, the self-adaptive adjustment of TBM tunneling parameters is of great significance for the safety and efficiency of TBM tunnelling.
Qinglong Zhang   +7 more
doaj   +1 more source

Significance and methodology: Preprocessing the big data for machine learning on TBM performance

open access: yesUnderground Space, 2022
This paper addresses the significance of preprocessing big data collected during a tunnel boring machine (TBM) excavation before it is used for machine learning on various TBM performance predictions.
Hao-Han Xiao   +5 more
doaj   +1 more source

Tunnel Boring Machine Design and Reliability Parameters of a Dynamic Rock-Indentor System

open access: yes, 2012
The article deals with the calculation of reliability indicators of system dynamics, between the tunnel boring machine and the rock during the tunnel boring of the exploratory tunnel Branisko. The background deals with a design of a tunnel boring machine
Marcela Malindzakova, Jozef Futo
core   +1 more source

Experimental and theoretical investigation of longitudinal tunnel lining joints with confining reinforcement

open access: yesStructural Concrete, Volume 27, Issue 4, Page 6070-6098, August 2026.
Abstract Precast reinforced concrete segmental linings are frequently used in modern tunneling. In these linings, the longitudinal joints typically have a reduced contact cross‐section and thus often govern the design, particularly in tunnels under high hydrostatic pressure or crossing squeezing or swelling ground with correspondingly high ...
Fabian Morger   +2 more
wiley   +1 more source

Tribocorrosion challenges in tunnel boring machinery (TBM) [PDF]

open access: yes, 2015
Tunnel Boring Machines (TBM) are used to bore tunnels, a specific area of interest for TBMs is their cutter heads, which is a massive steel structure with hardened steel disc cutters attached.
Espallargas Alvarez, Nuria
core   +1 more source

Análise de produtividade de máquinas tuneladoras em rochas duras [PDF]

open access: yes, 2014
TCC (graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Engenharia Civil.As máquinas tuneladoras atuais alcançaram sucesso na realização de obras de túneis nas últimas 5 décadas.
Paulo, Isabela de
core  

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 2, Page 331-349, June 2026.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan   +6 more
wiley   +1 more source

Intelligent decision-making for TBM tunnelling control parameters using multi-objective optimization

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
In tunnel construction, tunnel boring machine (TBM) tunnelling typically relies on manual experience with sub-optimal control parameters, which can easily lead to inefficiency and high costs.
Shaokang Hou   +5 more
doaj   +1 more source

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