Numerical Modeling Technique
CFD modeling is based on the principles of fluid mechanics, utilizing numerical methods and algorithms to solve problems that involve fluid flows. Models attempt to simulate the interaction of liquids and gases where the surfaces are defined by boundary conditions. CFD models are based on the principles of the Navier–Stokes equations.
Coupled thermal–hydraulic–mechanical model for an
In this study, the coupling mechanism of the THM in a fractured rock during the operation of an EGS was first determined and explained. Based on the local thermal nonequilibrium theory, a fully coupled THM mathematical model of a dual media was established, considering the dynamic changes in the properties of the rock matrix, …
Numerical modelling of rock mass bulking and …
Numerical modelling of rock mass bulking and geometric dilation using a bonded block modelling approach to assist in support design for deep mining pillars. …
Numerical modeling of suspended sediment due to deep‐sea mining
A numerical model was developed in order to estimate the residence time of a sediment plume generated by potential deep-sea mining activities, with special attention to discharges in the bottom boundary layer. The site of the Disturbance and Recolonization Experiment (DISCOL) in the Peru Basin in the southeast Pacific Ocean …
Modelling of Longwall Mining-Induced Strata Permeability Change
The field measurement of permeability within the strata affected by mining is a challenging and expensive task, thus such tests may not be carried out in large numbers to cover all the overburden strata and coal seams being affected by mining. However, numerical modelling in conjunction with a limited number of targeted field …
Numerical Modelling Challenges in Rock Engineering …
We present a critical review of numerical methods centered around the hypothesis that a model is not, and cannot be, a perfect imitation of reality; therefore, …
An overview of numerical modelling applied to deep …
Numerical modelling is increasingly being used in the mining industry as part of the planning process. Its areas of application range from the estimation of in situ …
Numerical simulation of rock cutting in deep mining …
Goktan 8 modified Evan's theory which did not take the effect of friction angle between rock and tool into account. He overcame the deficiency of Evan's theory that the cutting. Numerical modeling of the rock cutting considering with deep mining condition. Deep mining engineering is a current and future problem for most countries in the world.
numerical modelling theories in mining
Calibration of a numerical model for bore-and-fill mining by D. Roberts Bore-and-fill mining was implemented at a pilot site in Tau Tona mine's shaft pillar on 97 level. Observations, scan data, and measurements from this site were used to calibrate an inelastic numerical model of bore-and-fill mining within the Carbon Leader Reef (CLR). …
Numerical Modelling Challenges in Rock Engineering …
We present a critical review of numerical methods centered around the hypothesis that a model is not, and cannot be, a perfect imitation of reality; therefore, numerical …
Research on Optimization and Numerical Simulation of …
The stability of the filling roof—as an important bearing unit in the stope of the access stope in the filling mining method—is of great significance to guarantee the safe and efficient production of the mine. Arrangement of the mining approach in downward cemented filling stope is the key factor affecting the stability of the filling body roof. Based …
Numerical modelling approach for mine backfill
Abstract. Numerical modelling is broadly used for assessing complex scenarios in underground mines, including mining sequence and blast-induced …
Numerical simulation study of enhanced geothermal
Model assumptions. Numerical simulations of geothermal mining involve complex physical field interactions. In building a system of partial differential equations, reasonable assumptions can be introduced to simplify numerical calculations. We have analyzed and generalized previous studies and presented the following assumptions: (1)
Numerical Modelling-Based Stability Analysis of Waste …
The depths of open-pit mines have been increasing in the last few decades. This transformation generates a vast amount of waste rock material per unit mining area imposing a significant economic, social and environmental liability on the mine operators. The scarcity of dumping land along with the rise in population, competing urbanization …
Recent Advances in Numerical Modelling for Large-Scale Mining …
The suggested models from this group are random field theory based models [15,16], elastic or visco-elastic theory based models [17][18][19], continuum numerical models [12,[20][21][22] and ...
Numerical Modeling in Civil and Mining …
Numerical modeling is largely used in geotechnical engineering to understand the responses of infrastructures in civil and mining engineering. Many …
Practical Use of Numerical Modelling in Underground Mining
S. Suikki. 2018. Numerical Modelling Study of Low-rise Mining at the Tara Mine. Civil Engineering, master's level in Luleå University of Technology. Request PDF | Practical Use of Numerical ...
Combining numerical modeling and machine …
Abstract. Predictive modeling of mineral prospectivity, which integrates diverse evidence of ore-forming processes based on an ore deposit genetic model …
Research on slurry diffusion and seepage law in mining
Tao et al. 13 studied the force and flow characteristics of inorganic solidified slurry in the gas leakage crack, and compared and verified the rationality of the theory and numerical model ...
A Numerical Based Approach to Calculate Ore Dilution …
The chief characteristic of the caving mining method is that caved ores, surrounded by overlying rocks, are drawn from the drawpoint. And the ultimate objective of investigating the draw problems is to forecast the ore loss and dilution. In this paper, the rolling resistance model in the Particle Flow Code was used to simulate the effect of …
An Approach for Numerical Modeling of Gob Compaction …
Smart and Haley used the roof strata tilt theory for the estimation of the gob pressure distribution. They suggested a polynomial stress-strain relation using instrumentation data obtained from a stone-built pack. ... Numerical modelling of longwall mining and stability analysis of the gates in a coal mine. Int J Rock Mech Min Sci …
Numerical Modelling Application in the …
Numerical modelling is vital in understanding the behaviour of rock masses in mining activities, facilitating extraction planning, and minimising hazards. The models …
Numerical modeling for rockbursts: A state-of-the-art review
Compared with the tributary area theory, the numerical model could reproduce the realistic distribution of load on pillars. The simulated Domino failure mode of pillars was verified with the observations in a chromite mine ... Alternative mining methods: FLAC3D: 3D: Elastic model (for ERR and ESS), and the cohesion weakening and …
(PDF) Numerical modeling of Open Pit (OP) to …
TO UNDERGROUND (UG) TRANSITION IN COAL MINING. P HU MINH VUONG NGUYEN, ZBIGNIEW NIEDBALSKI. AGH University of Scie nce and Technology. E-mail: [email protected]. pl; …
(PDF) Special Issue on Numerical Modeling in Civil and Mining …
Abstract. Numerical modeling is a widely used method in geotechnical engineering to understand the interactive responses of infrastructures with soils or/and rocks in both civil and mining ...
Using numerical modelling to represent parameters affecting cave mining
However, due to the low data utilisation, visualisation-oriented mining education and training applications are still designed with simple interaction and are limited to solid 3D models [17], [22 ...
Theory and numerical simulation of deep hole cut blasting …
Numerical model of DSCD cut blasting and distribution of cut hole. The parameters of each blasthole in the model are designed on the basis of the field project cases undertaken by the author's research group 17, 34 and on the basis of the original plan of the rock roadway excavation project in the third central depot of Gubei Coal Mine …
Elastic Versus Inelastic Numerical Modelling of Deep and …
modulus, or. elasticity E. . Inelastic Numerical Modelling of. Contrary to elastic modelling, inelastic m odelling considers the solid material as bein g able to fail under the. load. Hence, it ...
A novel numerical modeling method for studying the failure …
Discrete element method (DEM) has been widely used in studying fracture development of rock due to its ability to accurately depict particle interactions. In order to more intuitively describe the fracture characteristics of the main roof during coal seam mining using DEM, a novel numerical model for generating irregular particles roof …
Particle flow numerical simulation model for coal and gas
A FLAC 3D numerical simulation model was established based on the geological information of a certain mine in Pingdingshan mining area. The model is 50 m long, 30 m wide, and 24 m high, as shown ...
