Numerical Simulation on the Stability of Surrounding Rock
By taking "Xishan Highway Tunnel" as the research object, and using the numerical simulation method, the numerical model of the tunnel has been established in the Midas/GTS to simulate the tunnel excavation under the horizontal rock strata condition,and the deformation and failure mechanism of surrounding rock and the influence factors of
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Numerical Simulation for the Excavation in Tunnel
Tunnel excavation is often done in underground engineering such as civil tunnel construction and mine excavation. The numerical simulation can output colorful results to interpret the tunnel excavation effect more easier. Among all the numerical simulation methods, fast lagrangian explicit finite difference code of continua (FLAC3D) is widely used to solve practical problems, …
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Numerical simulation study on the tunnel excavation
It indicates through numerical simulation that regularities of distribution of displacement and stress in wall rock and supporting structure can be obtained in dynamic excavation by steps and support by steps; at the same time distribution and failure mechanism of plastic zone of wall rock is given about three different phases of without support, first support, second support.
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Grouting technology and construction schemes of a tunnel
Dec 07, 2021 · The numerical simulation results of the construction process of the benching partial excavation method with a temporary invert indicate that the control ability of the surrounding rock deformation
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Study of the stability of tunnel construction based on
Jan 01, 2014 · The numerical simulation of tunnel construction process using this method is carried out to illustrate the rationality and feasibility of the method. The conclusions are drawn by comparing the numerical simulation results with the field monitoring data analysis.
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Numerical simulation for tunnel excavation in stratified
Nov 29, 2009 · In order to study the stress and deformation response tunnel excavation, numerical model is built by the commercial package ANASYS, then the model is transferred based on the self-compiled program to the to the FLAC3D for calculation, then the excavation of tunnel is simulated to find out the effect of the excavation disturbance on the tunnel
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Numerical Simulation of Impact Caused by Construction …
Up to12%cash back · Feb 18, 2019 · This paper is based on the feasibility study of the construction space layout of a high-rise building adjacent to the Qingdao terminal of the Jiaozhou Bay subsea tunnel, the three processes of tunnel excavation and unloading, foundation pit excavation and unloading and building construction loading are simulated by numerical …
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Numerical Simulation of a Deep Excavation near a Shield …
Numerical Simulation of a Deep Excavation near a Shield Tunnel . Qian SUN, Changhong YAN, Jianfei QIU, Baotian XU, Bu XU, Junqiang SHA . Abstract: A conveyance water shield tunnel under the Yangtze River, which was designed for the Jiangsu Changshu Power Plant Co., Ltd., was damaged due to water leakage and submersion.
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Numerical simulation of tunnel ventilation in Jiaoxihe
Jan 04, 2021 · Ventilation problems in tunnel construction are increasingly evident, but the methods used to estimate the ventilation time in simulations of construction schedules are currently all empirical. In this study, the wind speed produced during forced ventilation was simulated using a three-dimensional renormalisation group k–ε turbulence model in …
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Study on the Damage Process and Numerical Simulation …
Sep 24, 2021 · "Study on the Damage Process and Numerical Simulation of Tunnel Excavation in Water-Rich Soft Rock" Applied Sciences 11, no. 19: 8906. https://doi.org/10.3390/app11198906 Find Other Styles Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers.
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Numerical Simulation of the Influence of Tunnel
In actual space, considering the heterogeneity and anisotropy of rock and soil, the difference of hydrogeological conditions and the influence of tunnel excavation, tunnel seepage problem is a very complex three-dimensional seepage problem, which is very difficult to solve. The equivalent continuum model is one of the most commonly simplified models used in solving tunnel …
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(PDF) Reevaluation of the design and excavation of
monitoring and numerical simulation to study the water - Reev aluat ion of the desi gn an d ex cava tion of un dergr ound o il. construction tunnel, and three or four conn ection tunnels
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(PDF) Numerical simulation of an excavation disturbed zone
Numerical simulation of an excavation disturbed zone around a tunnel in brittle rock. Aliakbar Golshani. Download Download PDF. Full PDF Package Download Full PDF Package. This Paper. A short summary of this paper. 22 Full PDFs related to this paper. Numerical simulation of an excavation disturbed zone around a tunnel in brittle rock. Download
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Numerical Simulation of the Evacuation Process in a Tunnel
The benefit of tunnel fire numerical simulation of tunnel evacuation via FDS+Evac is the direct connection between the evacuation module and the fire data derived from the fire simulation. The tunnel emergency exits characteristics and the effect of fire and traffic on the evacuation process are illustrated in this study.
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Impact of Overhead Excavation on an Existing Shield Tunnel
This paper studies the impact of overhead excavation on an existing tunnel through both field monitoring and a full 3D numerical model. It is found that …
Get a quoteNumerical simulation study on the tunnel excavation
In order to shorten route and increase road grade, tunnel excavation road scheme will be widely used in mountain area, so tunnel stability will increasingly become important problem for design and construction. In this paper mechanical behavior of tunnel is simulated by FLAC during road tunnel excavation and support with three-dimensional Fast Lagrangian Method. It indicates …
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Numerical simulation study on the tunnel excavation
In order to shorten route and increase road grade, tunnel excavation road scheme will be widely used in mountain area, so tunnel stability will increasingly become important problem for design and construction. In this paper mechanical behavior of tunnel is simulated by FLAC during road tunnel excavation and support with three-dimensional Fast Lagrangian Method. It indicates …
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Numerical Simulation of the Evacuation Process in a Tunnel
The benefit of tunnel fire numerical simulation of tunnel evacuation via FDS+Evac is the direct connection between the evacuation module and the fire data derived from the fire simulation. The tunnel emergency exits characteristics and the effect of fire and traffic on the evacuation process are illustrated in this study.
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Face stability of shield tunnels considering a
1 day ago · Finally, comparisons among the presented study, the numerical simulation and other existing studies will be performed to verify the accuracy and improvement of the proposed mechanism. 2. Numerical simulations 2.1. Numerical model. To investigate the face stability of shield tunnels, FLAC3D is adopted to perform the numerical simulation.
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Tunnel–piled structure interaction: Numerical simulation
Sep 28, 2021 · Tunnel excavation in urban areas causes ground movements that could damage existing nearby piled structures. Geotechnical centrifuge modelling has been widely used as a tool to study problems related to tunnelling activities and its interaction with existing infrastructure systems. Recent hybrid centrifuge tests using the Coupled Centrifuge-Numerical Modelling …
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