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Article
An improved three-dimensional spherical DDA model for simulating rock failure
In this paper, a discontinuous numerical model, namely SDDARF3D (three-dimensional spherical discontinuous deformation analysis for rock failure), is proposed for simulating the whole process of rock failure. Fir...
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Article
Mechanism of the Mudstone Tunnel Failures Induced by Expansive Clay Minerals
Expansive clay minerals can be a serious threat to underground rock structure because of their swelling behavior when absorbing water. Roof and wall collapse as well as large deformation were observed in **aot...
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Article
Improvement of contact calculation in spherical discontinuous deformation analysis
Discontinuous deformation analysis (DDA) method is a newly developed discrete element method which employs the implicit time-integration scheme to solve the governing equations and the open-close iteration (OC...
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Latest advances in discontinuous deformation analysis method
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Article
Experimental study on the influence of temperature cycle on low-rank coal permeability
The formation temperature is a key factor affecting coalbed methane (CBM) migration in reservoirs. Both the prediction of CBM production and prevention of mine gas disasters require the understanding on the co...
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Article
The BEM based on conformal Duffy-distance transformation for three-dimensional elasticity problems
Here, we describe the robust and efficient application of the conventional 3D BEM in solving elasticity problems. We have focused on the precise computation of weakly singular integrals. The conformal Duffy-di...
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Article
Optimal Design of a High Slope for Ice World & Water Park (IWWP) Built Over an Abandoned Quarry: A Case Study in Changsha of China
The Ice World & Water Park (IWWP) is a huge recreational building that stands on the Dawangshan Pit which is an abandoned limestone quarry in Changsha, China. The effective reinforcement of slope is imperative...
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Article
Unascertained Measure-Set Pair Analysis Model of Collapse Risk Evaluation in Mountain Tunnels and Its Engineering Application
Collapse is a major geological disaster that occurs during mountain tunnel construction. However, the accuracy of collapse risk assessment is generally restricted by evaluation factors or methods. This paper p...
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Article
Experimental study on response law and failure process of slopes in fully weathered granites under precipitation infiltration
To investigate the response law and failure process of slopes in fully weathered granites under precipitation infiltration, a typical fully weathered granite slope is selected for sampling in South China. The ...
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Article
Analysis of the Mechanism of Water Inrush Geohazards in Deep-Buried Tunnels under the Complex Geological Environment of Karst Cave-Fractured Zone
To study the mechanism and evolution process of water inrush geohazards under the complex geological environment of the karst cave-fractured zone, a large-scale physical three-dimensional (3D) model test was f...
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Article
How does the New Generation of Information Technology Support the Urban Transparent Geology?
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Article
Three-dimensional numerical manifold method for heat conduction problems with a simplex integral on the boundary
The three-dimensional numerical manifold method (3D-NMM), which is based on the derivation of Galerkin’s variation, is a powerful calculation tool that uses two cover systems. The 3D-NMM can be used to handle ...
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Article
A Sustainable Strategy for Spent Cathode Carbon Blocks Hazardous Waste Recycling Using Binary Molten Salt Thermal Treatment
Waste-to-Energy treatment is a promising path to environment and energy management in the future. This work detailed a binary molten salt thermal treatment methodology for the detoxification of spent cathode c...
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Article
3-D Tunnel Seismic Advance Prediction Method with Wide Illumination and High-Precision
Tunnel seismic advance prediction can effectively reduce the construction risk during tunnel excavation. Compared with the 2-D method, the 3-D method is more conducive to describing the spatial characteristics...