Tunnel excavation in granular media: the role of force chains
Sign Up to like & getrecommendations! Published in 2021 at "Granular Matter"
DOI: 10.1007/s10035-021-01141-2
Abstract: We investigate how force chains in a granular packing influence and change during a tunnel excavation process. A two-dimensional (2D) frictional cohensionless packing is considered under gravity and a set of contiguous particles are removed… read more here.
Keywords: force; granular media; force chains; tunnel excavation ... See more keywords
Tools to simulate changes in hydraulic flow systems in complex geologic settings affected by tunnel excavation
Sign Up to like & getrecommendations! Published in 2017 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-017-1113-5
Abstract: Geotechnical problems during and after tunnel construction are often related to groundwater circulation. In tunnelling projects, however, groundwater flow systems are often only partly known. This uncertainty is manifested by the typically scarce hydraulic data… read more here.
Keywords: groundwater; changes hydraulic; flow systems; groundwater flow ... See more keywords
Deformation monitoring of rock slope with weak bedding structural plane subject to tunnel excavation
Sign Up to like & getrecommendations! Published in 2018 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-018-3602-7
Abstract: The deformation characteristics of rock slopes with weak structural plane are governed by the mechanical properties and geometrical distribution of the structural plane. In particular, the weak structural planes can be excavated and disturbed in… read more here.
Keywords: slope; excavation; deformation; structural plane ... See more keywords
Monitoring of tunnel excavation based on the fiber Bragg grating sensing technology
Sign Up to like & getrecommendations! Published in 2021 at "Measurement"
DOI: 10.1016/j.measurement.2020.108334
Abstract: Abstract The application of advanced sensing technology is of great significance for investigating the disturbance caused by tunnel excavation. In this paper, fiber Bragg grating (FBG) sensing technology is introduced into tunnel construction. To monitor… read more here.
Keywords: fiber bragg; tunnel; excavation; sensing technology ... See more keywords
Large deformation finite element analyses in TBM tunnel excavation: CEL and auto-remeshing approach
Sign Up to like & getrecommendations! Published in 2021 at "Tunnelling and Underground Space Technology"
DOI: 10.1016/j.tust.2021.104081
Abstract: Abstract Analyzing tunnel excavation behavior involves large deformation issues. For this reason, large deformation analysis method is required to rigorously investigate the actual effect of excavation on surrounding ground. Two major numerical approaches capable of… read more here.
Keywords: large deformation; tunnel excavation; edz; excavation ... See more keywords
Study on slope stability due to the influence of excavation of the high-speed rail tunnel
Sign Up to like & getrecommendations! Published in 2019 at "Geomatics, Natural Hazards and Risk"
DOI: 10.1080/19475705.2019.1568311
Abstract: Abstract In this study, based on a high-speed railway tunnel project undercrossing slope, model tests and numerical simulation methods were carried out to study the interaction law of tunnel excavation and slope stability. Firstly, the… read more here.
Keywords: slope; excavation; influence; stability ... See more keywords
Analysis and Intelligent Prediction for Displacement of Stratum and Tunnel Lining by Shield Tunnel Excavation in Complex Geological Conditions: A Case Study
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Intelligent Transportation Systems"
DOI: 10.1109/tits.2022.3149819
Abstract: This paper presents the analysis and intelligent prediction for the displacement of stratum and tunnel lining of Qingdao Metro Line 4 by earth pressure balance (EPB) shield tunnel excavation in complex strata. When the tunnel… read more here.
Keywords: stratum; shield tunnel; displacement; tunnel ... See more keywords
Numerical Simulation of Diversion Tunnel Excavation Using GPU-Accelerated Anisotropic Random Fields
Sign Up to like & getrecommendations! Published in 2023 at "Geofluids"
DOI: 10.1155/2023/1758153
Abstract: In this study, a combined anisotropic random field and GPU-accelerated Cholesky decomposition algorithm is proposed for diversion tunnel excavation. With the MATLAB programming control be used to combine the advantages of GPU and CPU computing,… read more here.
Keywords: random fields; excavation; tunnel; anisotropic random ... See more keywords
Role of Particle Shape on Ground Responses to a Circular Tunnel Excavation in Sandy Soil: Consequences from DEM Simulations
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15207088
Abstract: Due to the sensitivity of sandy soil’s mechanical behavior to the particle shape, it is thus of importance for interpreting the effect of particle shape on the ground response induced by tunnel excavation in sandy… read more here.
Keywords: particle shape; ground; tunnel excavation; soil ... See more keywords