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https://link.springer.com/article/10.1007%2Fs00603-010-0103-8
Jun 15, 2010 · The present paper investigates the interaction between the shield, ground and tunnel support by means of computational analysis. Emphasis is placed on the boundary condition, which is applied to model the interface between the ground and the shield or …Cited by: 86
https://www.sciencedirect.com/science/article/pii/S0886779808001065
The idea behind all yielding support systems is that the ground pressure will decrease if the ground is allowed to deform. During construction, the support system and the amount of over-excavation can be adapted to changes in squeezing intensity through the use of advance probing, monitoring results and observations made in tunnel stretches excavated previously.Cited by: 58
https://www.sciencedirect.com/science/article/pii/S1365160911001699
3. Ground–support interaction analysis using CCM. The convergence-confinement method (CCM) provides a procedure to analyze the interaction of tunnel support with the surrounding rocks in the vicinity of the face based on the stress and strain state, which develops in the rock mass.Cited by: 78
https://www.rocscience.com/software/rocsupport
Feb 19, 2018 · RocSupport is an easy-to-use software tool for estimating deformation in circular or near circular excavations in weak rock and visualization of the tunnel interaction with various support systems. Given the tunnel radius, in-situ stress conditions, rock parameters and support parameters, a ground reaction curve and a support reaction curve are calculated.Location: 54 Saint Patrick St, Toronto, M5T 1V1
http://onlinepubs.trb.org/Onlinepubs/hrr/1970/339/339-003.pdf
Design of Tunnel Support Systems D. U. DEERE, R. B. PECK, and H. W. PARKER, Department of Civil Engineering, ... and the character of the ground are inseparable consid ... any system as a complex function of the interaction of the behavior of the individual components of the system. In contrast, previous concepts and theories for the design
https://www.researchgate.net/publication/225457401_The_Interaction_Between_Shield_Ground_and_Tunnel_Support_in_TBM_Tunnelling_Through_Squeezing_Ground
The Interaction Between Shield, Ground and Tunnel Support in TBM Tunnelling Through Squeezing Ground Article in Rock Mechanics and Rock Engineering 44(1):37-61 · …
https://www.engineeringcivil.com/what-are-the-major-factors-affecting-ground-support-interaction-in-tunnels.html
In general, the in-situ ground stress reduces with an increase in inward radial displacement in an unloaded ground/tunnel. The major factors affecting ground-support interaction in tunnels are as follows: (i) The relative stiffness of ground and linings …
https://www.researchgate.net/publication/310311660_Analysis_of_ground_response_and_ground-support_interaction_in_tunnelling_considering_large_deformations
The interaction of stresses and displacements in the soil surrounding a tunnel and in the 548 lining or support elements is commonly represented …
https://rocscience.com/assets/resources/learning/hoek/Big-Tunnels-in-Bad-Rock-2000.PDF
Fig. 2: A tunnel model and ground-support interaction curve for the rock mass surrounding a tunnel. Hoek – 2000 Terzaghi lecture Page 2 of 15 Tunnel support, which may be steel sets, rockbolts or shotcrete or some combination of these, is installed after the tunnel has converged a …
https://www.isrmtt.com/wp-content/pdf/vol-14-2008/july-2008-vol-14-no-2/viladkar1.pdf
M.N. VILADKAR ET AL – ROCK MASS – TUNNEL SUPPORT INTERACTION ANALYSIS: PART I 107 The main purpose of field work was to study the response of ground upon excavation and support behavior at various tunnel sections, with a view to develop empirical/semi-
https://www.engineeringcivil.com/what-are-the-major-factors-affecting-ground-support-interaction-in-tunnels.html
The major factors affecting ground-support interaction in tunnels are as follows: (i) The relative stiffness of ground and linings plays an important role in ground-support interaction. For instance, a stiff support could support the unloaded ground at lower deformation than a flexible support.
https://www.sciencedirect.com/science/article/pii/S1365160911001699
4. Reliability analysis of the ground–support interaction 4.1. A supported tunnel and its parameters. In order to illustrate the procedure of the reliability analysis of ground–support interaction using CCM, a circular tunnel of radius 5 m in a hydrostatic stress field of 3 MPa is chosen as an example.Cited by: 78
https://link.springer.com/article/10.1007%2Fs00603-010-0103-8
Jun 15, 2010 · The present paper investigates the interaction between the shield, ground and tunnel support by means of computational analysis. Emphasis is placed on the boundary condition, which is applied to model the interface between the ground and the shield or tunnel support.Cited by: 86
https://www.researchgate.net/publication/310311660_Analysis_of_ground_response_and_ground-support_interaction_in_tunnelling_considering_large_deformations
The interaction of stresses and displacements in the soil surrounding a tunnel and in the 548 lining or support elements is commonly represented by a ground response curve (or a ground 549 ...
https://tunnel.ita-aites.org/media/k2/attachments/public/Convergence-confinement%20AFTES.pdf
The convergence-confinement method is a simplified method of analysing this interaction between the ground and the support. In its basic form using extreme axisymmetry assumptions, it becomes a two- or one-dimen-sional problem, providing a simple understan-ding of the ground/support interaction pro-cesses occurring near the working face.
https://core.ac.uk/download/pdf/11423387.pdf
Numerical modelling of ground-tunnel support interaction using bedded-beam-spring model with fuzzy parameters Introduction In order to design a tunnel lining following the usually applied codes and methods, the use of a computational tool to evaluate the underground and surface displacements, the
https://core.ac.uk/download/pdf/11423387.pdf
research analyses the tunnel boundary conditions after excavation and its influence on a ground-support system and on the stresses inside the lining. The study of the ground-tunnel interaction is performed by introducing a predetermined degree of variation (fuzziness) into the input ground parameters. Given a certain degree
https://www.engineeringcivil.com/theory/tunneling/page/3
In general, the in-situ ground stress reduces with an increase in inward radial displacement in an unloaded ground/tunnel. The major factors affecting ground-support interaction in tunnels are as follows: (i) The relative stiffness of ground and linings plays an important role in ground-support interaction.
https://rocscience.com/assets/resources/learning/hoek/Big-Tunnels-in-Bad-Rock-2000.PDF
Fig. 2: A tunnel model and ground-support interaction curve for the rock mass surrounding a tunnel. Hoek – 2000 Terzaghi lecture Page 2 of 15 Tunnel support, which may be steel sets, rockbolts or shotcrete or some combination of these, is installed after the tunnel has converged a distance d ...
https://tunnel.ita-aites.org/media/k2/attachments/public/Convergence-confinement%20AFTES.pdf
The convergence-confinement method is a simplified method of analysing this interaction between the ground and the support. In its basic form using extreme axisymmetry assumptions, it becomes a two- or one-dimen-sional problem, providing a simple understan-ding of the ground/support interaction pro-cesses occurring near the working face.
https://www.britannica.com/technology/tunnel/Tunneling-techniques
The tunnel structure in such cases is generally designed to support the entire load of the ground above it, in part because the ground arch in soil deteriorates with time and in part as an allowance for load changes resulting from future construction of buildings or tunnels. Soft-ground tunnels are typically circular in shape because of this ...
https://www.researchgate.net/publication/265623079_Numerical_modelling_of_ground-tunnel_support_interaction_using_bedded-beam-spring_model_with_fuzzy_parameters
Calculations of support pressure - tunnel convergence relationships, or ground response curves are used to improve understanding or rock-support interaction and to aid in the dimensioning of ...
https://www.tunnel-online.info/en/artikel/tunnel_2010-08_New_Ground_Support_gains_Traction_in_China_1041085.html
This support design is installed immediately behind the cutterhead and within the fingershield and provides an appropriate support to stabilize the tunnel and protect workers,” said Brox. Ideally, a long tunnel in variable ground will have some options for conversion depending on the ground conditions.
http://minewiki.engineering.queensu.ca/mediawiki/index.php/Ground_support
This article is about the application of ground support strategies and techniques to "underground mining projects". For the article on general geotechnical design see Geotechnical design. Ground support is a set of techniques, elements and methods that enable the conservation or mobilization of a rockmass' initial strength. The rockmass is ...
https://search.spe.org/i2kweb/SPE/doc/onepetro:14DFF641/
Cette nouvelle Methode a ete validee par comparaison avec des calculs effectues avec la SFE sur un materiau de Coulomb. ABSTRACT : Within a constant advance rate hypothesis of the tunnel, we analyse in rotational symmetry, the interaction of an elastic support with a reference elastoplastic ground …
https://ez-pdh.ez-pdh.com/course-material/CV7052-Design-and-Construction-of-Road-Tunnels-Part-2-Methodology-and-Excavation-Support.pdf
understand the construction methodology and excavation support systems for cut-and-cover road tunnels, design and construction issues for rock and soft ground tunneling, and the special approaches that must be made when passing through difficult ground. Grading: Students must achieve a minimum score of 70% on the online quiz to pass this course.
https://link.springer.com/article/10.1007%2Fs00603-006-0097-4
The magnitude and distribution of ground deformations around a tunnel are often monitored during construction and provide key information about ground-support interaction and ground behavior. Thus it is important to determine the effects of different parameters on ground deformations to accurately and effectively evaluate what contributes to ...
https://ez-pdh.ez-pdh.com/course-material/CV7053-Design-and-Construction-of-Road-Tunnels-Part-3-Design-and-Detailing.pdf
Design & Construction of Road Tunnels: Part 3 Design and Detailing Eekiel Enterprises, LLC • Ground and excavation and support classification based on a thorough ground investigation • Definition of excavation and support classes by:
https://miningandblasting.files.wordpress.com/2009/09/tunnelling_in_rocks_present_technology_future_challenges.pdf
TUNNELLING IN ROCKS – PRESENT TECHNOLOGY AND FUTURE CHALLENGES ZHAO Jian ... Tunnel support is done behind. 17 Rock Excavation: TBM Technology Laboratoire de Mécanique des Roches −LMR ... Ground-support interaction and observation based support …
https://vtechworks.lib.vt.edu/bitstream/handle/10919/26124/PHD_Dissertation_Vardakos_ver_2.pdf
Back-analysis Methods for Optimal Tunnel Design ... is of paramount importance when the contractual arrangements allow an adaptive tunnel support design during construction such as the NATM approach. Utilization of measurements can reveal important aspects of the ground-support interaction, warning of
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