Prediction of Floor Water Inrush: The Application of GIS-Based AHP Vulnerable Index Method to Donghuantuo Coal Mine, China

Wu, Qiang; Liu, Yuanzhang; Liu, Donghai; Zhou, Wanfang

doi:10.1007/s00603-011-0146-5

Cited by 153 publications

(45 citation statements)

References 5 publications

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“…In this paper, a combination between the discrete element methodology (DEM) and the Lattice-Boltzmann method (Chen and Doolen 1998) based on the discretized version of the Navier-Stokes equations for porous media has been employed to build the solid part of the virtual limestone assembly and simulate the fluid flow. There are other techniques for simulating fluid flow in fractured masses in order to investigate the effect of high external mechanical load to groundwater flow and/or the simulation of pore pressure, both significant to ongoing operations (Wang et al 2004;Wu et al 2011). These include the computational fluid dynamics (CFD) and direct numerical simulation (Dong 2007;Moin and Mahesh 1998), the Continuum Medium approach (Zhu et al 2014) and discrete fracture network and methods coupling both continuum and discrete media .…”

Section: Introductionmentioning

confidence: 98%

Simulation of the hydraulic fracturing process of fractured rocks by the discrete element method

et al. 2015

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This work presents a series of solid-fluid-coupled simulations of a natural fractured limestone sample. The aim of this paper is to investigate the effects of the fluid injection on its mechanical behaviour on the particlescale. A detailed study of the influence of the fluid flow on the microstructure of the virtual model, including its internal stress state, the fracture initialization and propagation, and also the interactions between the existing fracturing networks and the new hydraulically induced fractures, has been performed. The results show that the change of the angle of the natural fracture alters the internal stress pattern of the model, concluding that for fractures between 15°and 45°, the stress regime below the fracture is always higher than the one related with the fractures between 45°and 90°. Furthermore, the propagation of cracks has also been affected by the fracture angle, where for fractures below 45°, the cracks tend to propagate downwards and travelling mostly as a group of cracks. In contrast, for fractures above 45°, easier upwards movement of the cracks and the formation of clusters that stray from the main volume of cracks are observed. The overall fracture growth is in agreement with what conventional theory generally states, where a hydraulic fracture is extended along the direction of the maximum compressive principal stress. However, the magnitude of this observation was restricted by the sample dimensions due to increased computational time for larger samples. Finally, the relationship between the important cracking events (abrupt increases of microcracks) and the energy release within the model confirms the postulate that bond breakage causes further movement of particles and therefore increases the internal kinetic energy.

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Section: Introductionmentioning

confidence: 98%

Simulation of the hydraulic fracturing process of fractured rocks by the discrete element method

et al. 2015

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“…Examples of techniques used to assess the risk of a water inrush event in an underground coal mine include the water inrush coefficient, the vulnerable index, and lithological-structure methods Wu et al 2011;Xu and Wang 1991). Usually, groundwater inflow prediction in an underground mine is an engineering geology problem.…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical Prediction of Mine Water Inrush at the Xinli Mine, China

Meng

Wang

et al. 2016

Mine Water Environ

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Seawater poses a great threat to the Xinli Mine, an undersea gold mine in China. A hydrochemical method was used to assess the risk of sea water inrush into the mine. A detailed hydrochemical survey and sampling were carried out and the concentrations of conservative ions in the mine water were analyzed. Principal component analysis indicated that the potential water inrush channels were located in the hanging wall of the ore-controlling fault. A composite principal component was calculated from the Na ? , Cl -, Mg 2? , SO 4 2-, and K ? concentrations, which reflected the effects of potash feldspathization and cation exchange, to assess the risk of seawater inrush.

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“…MCDM methodologies formally incorporate the concerns from decision makers about a set of conflicting criteria into the management planning process. The promising methodologies have recently been applied into the risk management of mine water disasters [13,14] and mine water strategy evaluation [15], but little work can be found on evaluating mine water management practices in the literature.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Water Management Practice for Sustainable Mining

Zhang

Gao

Barrett

et al. 2014

Water

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Abstract:To move towards sustainable development, the mining industry needs to identify better mine water management practices for reducing raw water use, increasing water use efficiency, and eliminating environmental impacts in a precondition of securing mining production. However, the selection of optimal mine water management practices is technically challenging due to the lack of scientific tools to comprehensively evaluate management options against a set of conflicting criteria. This work has provided a solution to aid the identification of more sustainable mine water management practices. The solution includes a conceptual framework for forming a decision hierarchy; an evaluation method for assessing mine water management practices; and a sensitivity analysis in view of different preferences of stakeholders or managers. The solution is applied to a case study of the evaluation of sustainable water management practices in 16 mines located in the Bowen Basin in Queensland, Australia. The evaluation results illustrate the usefulness of the proposed solution. A sensitivity analysis is performed according to preference weights of stakeholders or managers. Some measures are provided for assessing sensitivity of strategy ranking outcomes if the weight of an indicator changes. Finally, some advice is given to improve the mine water management in some mines. OPEN ACCESSWater 2014, 6 415

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Prediction of Floor Water Inrush: The Application of GIS-Based AHP Vulnerable Index Method to Donghuantuo Coal Mine, China

Cited by 153 publications

References 5 publications

Simulation of the hydraulic fracturing process of fractured rocks by the discrete element method

Simulation of the hydraulic fracturing process of fractured rocks by the discrete element method

Hydrochemical Prediction of Mine Water Inrush at the Xinli Mine, China

Evaluating Water Management Practice for Sustainable Mining

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