Results 91 to 100 of about 1,618 (204)

Time-based two dimensional modelling of NATM tunnelling

, 2002
A two dimensional model is commonly employed in practice for the analysis of tunnelling. Such analyses are computationally cheap and are useful for assessing the sensitivity of the problem to the construction method, studying the influence of varying ...
D M Potts, J H Shin
core   +1 more source

STRESSES IN MULTIPHASE EXCAVATION OF TUNELL

Rudarsko-geološko-naftni Zbornik, 2003
Foreseeing of the rock massif behaviour in tunnel breaking out is a complex engineering problem. In projecting it is important to evaluate the stability conditions in excavation and after the acceptance of suitable breaking out methods, the acceptance of
Lidija Frgić, Krešimir Tor, Tomislav Hrestak   +2 more
doaj  

Study on the support strategy of excavation compensation structures based on dual-gradient grouting in cross-fault zone tunnels

Frontiers in Materials
The conventional Mine Tunneling Method (MTM) and the New Austrian Tunneling Method (NATM) are not sufficient to cope with the excavation and support of deep through-fault fracture zone tunnels with significant asymmetric large deformations.
Xiaojie Yang, Xiaojie Yang, Jihao Sun, Jihao Sun, Yilin Yue, Yilin Yue   +5 more
doaj   +1 more source

MARIDA: A benchmark for Marine Debris detection from Sentinel-2 remote sensing data. [PDF]

PLoS One, 2022
Kikaki K, Kakogeorgiou I, Mikeli P, Raitsos DE, Karantzalos K.   +4 more
europepmc   +1 more source

A Novel Approach for the Optimization of Segmental Linings in TBM Tunnels Through Steel Ring Reinforcement

Applied Sciences
Mechanized tunneling with Tunnel Boring Machines (TBMs) is essential for rapid urbanization, yet traditional thick concrete segmental linings incur high material costs and geometric challenges in deep projects.
Cemre Çağlar, Berna Unutmaz, Candan Gokceoglu   +2 more
doaj   +1 more source

BIM-based digital platform and risk management system for mountain tunnel construction. [PDF]

Sci Rep, 2023
Liu N, Guo D, Song Z, Zhong S, Hu R.
europepmc   +1 more source

Analysis of NATM and shield tunneling in soft ground

, 1989
Demand for new underground transportation systems and utility networks has increased the use of tunneling in soft ground. Many of these tunnels have to be constructed in difficult soil conditions, with strict constraints on ground movement control ...
Leca, Eric
core  

Design of the cross section using the NATM method in stage 1A of the Lima Metro Line 2 project

, 2020
La tesis consiste en proponer un diseño de la sección transversal mediante el método NATM de la etapa 1A del proyecto de la Línea 2 del Metro de Lima. En el cual para comenzar este estudio en este mega proyecto que en la actualidad se sigue realizando se
Samaniego Carrión, Antonio Gabriel, Martel Espinoza, Jhon Jersson   +1 more
core  

Analysis of primary NATM support under limited anchor capacity: implications for steel ribs and lattice girders

In the conventional application of the New Austrian Tunneling Method (NATM), the primary tunnel support is designed as a composite system consisting of shotcrete, systematically installed rock bolts, and auxiliary elements such as lattice girders and ...
Rašeta, Andrija, Bojović, Dragan, Uljarević, Milan   +2 more
core   +1 more source

Investigation of the support constraint effect and failure instability law of tunnels constructed using the New Austrian tunneling method. [PDF]

Sci Rep, 2022
Chen D, Wang L, Sun C, Jia C, Zheng L.
europepmc   +1 more source