Numerical Simulation for the Excavation in Tunnel

Numerical Simulation for the Excavation in Tunnel

Numerical simulation of the blasting vibration response of

Base on the phase I project of Nanjing metro line IV, the blasting vibration response of shallow buried tunnel in complex urban environment was studied with ANSYS/LS-DYNA, the real load change was simulated with the loading way of measured stress curve, and there was a consistent between numerical simulation results and the measured data. The numerical results indicated …

Get a Quote

Comparative study of rational excavation methods for deep

(4)Through the stability study of numerical simulation and the comparison of scheme applicability, it is suggested that the core soil excavation method is adopted in the Guangshan No.1 Deep-buried Tunnel.

Get a Quote

Numerical Simulation of Dynamic Response of Submerged

The resonance periods calculated by Equation and the numerical simulation results are shown in Figure 14. The results calculated by the estimation formula agree with those of numerical simulation. According to, when the mooring cable length is 20 m and the BWR is 1.5, the resonance period is 10.5 s. For small rivers or lakes, waves with

Get a Quote

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 …

Get a Quote

Underground Tunnel Excavation

This example simulates the excavation of a horseshoe shaped tunnel in highly weathered rock mass. The purpose is to demonstrate the features that are available in SIGMA/W for modelling rock deformation problems. Numerical Simulation Figure 1 shows the problem configuration. The model domain measures 35 m by 35 m approximately.

Get a Quote

Advanced numerical simulation of tunnel excavation and its

as shown in figure 5, the daily average seepage flow of tunnels in each construction stage is as follows: ① upper step excavation (70.42 m 3 /d) > ③ lower step excavation (48.74 m 3 /d) > inverted arch excavation (40.72 m 3 /d) > ② upper step support (38.80 m 3 /d) > ④ lower step support (32.54 m 3 /d) > ⑥ inverted arch support (0.03 m 3 /d) > ⑦ …

Get a Quote

Evaluating changes in the degree of saturation in

The excavation disturbed zone (EDZ) spreads around the tunnel owing to the excavation process. The EDZ has a higher hydraulic conductivity than an intact rock mass. Therefore, it is essential to predict water content changes in the EDZ within the scope of the drying deformation phenomena.

Get a Quote

(PDF) 2D Tunnel Numerical Investigation: The Influence of

2D Tunnel Numerical Investigation: The Influence of the Simplified Excavation Method on Tunnel Behaviour Ngoc-Anh Do, Daniel Dias, Pierpaolo Oreste & Irini Djeran-Maigre Geotechnical and Geological Engineering An International Journal ISSN 0960-3182 Volume 32 Number 1 Geotech Geol Eng (2014) 32:43-58 DOI 10.1007/s10706-013-9690-y 1 23 Your article is protected by …

Get a Quote

Numerical Simulation Research of Construction Method for

Numerical Simulation Research of Construction Method for Shallow Buried Large Section Tunnel. Bin Zhu 1, *, Weifeng Kou 2, Jiami Xi 1, Yanjun Shen 1. 1 School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Yan Ta Street, Xi'an 710054, China.

Get a Quote

Numerical Simulation Algorithm Design of Influence on

numerical analysis of the safety of the existing tunnel structure under the construction of the new tunnel, the prestress application control is carried out. e method collectively utilizes the analysis method of the structural safety evaluation parameters of the frame tunnel and the windloaddynamicfittingmodel.elateralmodelisforthe

Get a Quote

Applied Sciences | Free Full-Text | Numerical Simulation

To date, deformation and stability research of super large section tunnel have been focusing on numerical simulation, model test and field investigation of construction method, where the numerical simulation of tunnel construction is a very effective method to study such problems [ 2 …

Get a Quote

The Numerical Simulation of Hard Rocks for Tunnelling

Advanced numerical simulation of tunnel excavation and its application to the shallow overburden tunnel on unconsolidated ground Book Innovative Numerical Modelling in Geomechanics Edition 1st Edition First Published 2012 Imprint CRC Press Pages 18 eBook ISBN 9780429212987 Share ABSTRACT

Get a Quote

Numerical simulation of tunnel construction in volcanic rocks

ABSTRACT: For the design of tunnels, numerical simulation plays an important role. In general 3-D analyses are required and with currently available domain based methods such as the Finite element method the effort is considerable. In this paper the numerical simulation of tunnel excavation using an alternative approach to

Get a Quote

Numerical Simulation of the Influence of Tunnel

Dec 21, 2021 · Abstract. The temporal and spatial effects of a complicated excavation process are vital for an ultra-shallow buried large-span double-arch tunnel excavated under an expressway in service. Numerical simulations are urgent and necessary to understand the effect of the total construction process.

Get a Quote

(PDF) Numerical simulation of excavation and support in

Regarding the simulation of the tunnel advancement, the induced three-dimensional (3D) effects on the rockmass are simulated by applying the excavation-induced stresses as a distributed load on the excavation boundary for the FEM models, and the face replacement method for the FDEM models. For the FEM models, after the initialization of the geostatic stresses, the excavation …

Get a Quote

PROCESS ORIENTED NUMERICAL SIMULATION OF …

2.2.1 Numerical simulation in mechanized tunneling . Guglielmetti et al. (2008) have suggested applying realistic numerical simulations for the computation of settlements to accurately predict the influence of the tunnel construction on the built environment. For the

Get a Quote

Evaluating changes in the degree of saturation in

The excavation disturbed zone (EDZ) spreads around the tunnel owing to the excavation process. The EDZ has a higher hydraulic conductivity than an intact rock mass. Therefore, it is essential to predict water content changes in the EDZ within the scope of the drying deformation phenomena.

Get a Quote

Numerical Simulation for the Excavation in Tunnel

Jul 31, 2020 · Numerical simulation of excavation and support in shallow underground subway tunnel July 2020 IOP Conference Series Earth and Environmental Science 531(1):012054

Get a Quote

Numerical Simulation of Excavating the Overburden Above a

MATTLE ET AL.: NUMERICAL SIMULATION OF EXCAVATING THE OVERBURDEN ABOVE A MASONRY TUNNEL FELSBAU 20 (2002) NO. 6 35 TUNNELLING Numerical Simulation of Excavating the Overburden Above a Masonry Tunnel By Bruno Mattle, Christof Weigl and Johannes Benedikt T he Tauern railway line between Schwarzach-St. Veit and …

Get a Quote

(PDF) 2D Tunnel Numerical Investigation: The Influence of

2D Tunnel Numerical Investigation: The Influence of the Simplified Excavation Method on Tunnel Behaviour Ngoc-Anh Do, Daniel Dias, Pierpaolo Oreste & Irini Djeran-Maigre Geotechnical and Geological Engineering An International Journal ISSN 0960-3182 Volume 32 Number 1 Geotech Geol Eng (2014) 32:43-58 DOI 10.1007/s10706-013-9690-y 1 23 Your article is protected by …

Get a Quote
Copyright © Talenet Group all rights reserved