Mechanism of mine water inrush from overlying porous aquifer in Quaternary: a case study in Xinhe Coal Mine of Shandong Province, China

Yin, Huiyong; Zhao, Han; Xie, Daolei; Sang, Shizhen; Shi, Yongli; Tian, Maohu

doi:10.1007/s12517-019-4325-0

Cited by 43 publications

(15 citation statements)

References 40 publications

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“…Los Angeles [21], New Orleans [22], Las Vegas [23], Mexico [24], Venice [25], Tehran [26], Ho Chi Minh City [27], Shanghai [28], Bangkok [29] and Beijing [30] are among them. The problem, however, is especially critical in South-East Asia's large coastal cities, which are located in river deltas [31]. Most coastal cities are built on unconsolidated, fine-grained, shallow alluvial deposits that are highly compressible.…”

Section: Introductionmentioning

confidence: 99%

Land Subsidence Estimation for Aquifer Drainage Induced by Underground Mining

Guzy

Witkowski

2021

Energies

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Land subsidence caused by groundwater withdrawal induced by mining is a relatively unknown phenomenon. This is primarily due to the small scale of such movements compared to the land subsidence caused by deposit extraction. Nonetheless, the environmental impact of drainage-related land subsidence remains underestimated. The research was carried out in the “Bogdanka” coal mine in Poland. First, the historical impact of mining on land subsidence and groundwater head changes was investigated. The outcomes of these studies were used to construct the influence method model. With field data, our model was successfully calibrated and validated. Finally, it was used for land subsidence estimation for 2030. As per the findings, the field of mining exploitation has the greatest land subsidence. In 2014, the maximum value of the phenomenon was 0.313 cm. However, this value will reach 0.364 m by 2030. The spatial extent of land subsidence caused by mining-induced drainage extends up to 20 km beyond the mining area’s boundaries. The presented model provided land subsidence patterns without the need for a complex numerical subsidence model. As a result, the method presented can be effectively used for land subsidence regulation plans considering the impact of mining on the aquifer system.

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Section: Introductionmentioning

confidence: 99%

Land Subsidence Estimation for Aquifer Drainage Induced by Underground Mining

Guzy

Witkowski

2021

Energies

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“…Consequently, the viscosity of the slurry in this region can be assumed to be equal to the initial value, which can be written as μ 0 � μ(0). In the initial element, the pressure linearly decreases with grouting advance; thus, the initial grouting flow rate can be expressed as the following formula according to (10):…”

Section: Stepwise Calculation Methods Corresponding To Injectionmentioning

confidence: 99%

“…Many water-burst hazards have occurred in coal mines in China during the past few decades, causing casualties and significant property losses [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. To prevent water ingress, the grouting technique has been extensively and effectively applied to water-bearing strata in underground constructions for more than two hundred years [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Grouting Mechanism of Cement‐Based Slurry in a Concentric Annulus under High Groundwater Pressure

Zhang

Han

Zhang

et al. 2019

Advances in Civil Engineering

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The flow of cement-based slurry within concentric annular geometry is a major problem of study in the field of engineering, especially regarding the prevention of water ingress in an annulus formed during shaft construction utilizing the artificial freezing technique in China. In this study, an analytical governing equation of motion for the axial flow of an incompressible Newtonian fluid in a long concentric annulus is derived under the condition of high groundwater pressure. A stepwise calculation method is proposed to describe the grouting process based on two injection modes, namely, flow rate control and pressure control. The injection time is divided into a series of time segments; correspondingly, the grouted zone is subdivided into infinitesimal elements. Some key parameters, such as the location, dimension, slurry viscosity, and pressure gradient of each element, can be obtained using the developed MATLAB program. On this basis, the distribution of pressure and slurry viscosity in the grouted zone and the variations in injection pressure at the grouting point and grouting flow rate are determined. Two injection mode cases are investigated to reveal the grout propagation in the concentric annulus. Finally, numerical simulations are conducted and employed to validate and calibrate the calculated results. The results obtained by the present stepwise calculation method show good agreement with the numerical results.

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“…This leads to a complex groundwater flow field and chemical field. As the aquifer connects with the structure, different aquifers connect to form a water filling channel, which causes water inrush accidents and water pollution [4,5]. This highlights the importance of studying water quality types and the hydrogeochemical evolution characteristics of underground aquifers, which can provide the basis for the safe production of coal mines and the full utilization of water resources.…”

Section: Introductionmentioning

confidence: 99%

Hydrogeochemical Evolution and Control Mechanism of Underground Multiaquifer System in Coal Mine Area

Wang³

et al. 2020

Geofluids

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Mining activities interfere into the natural groundwater chemical environment, which may lead to hydrogeochemical changes of aquifers and mine water inrush disasters. The study of hydrogeochemical evolution processes of underground aquifers is helpful to the prevention and control of mine water inrush. The results show that the study area is mainly impacted by four hydrogeochemical processes: dissolution, cation exchange, desulfurization and reduction, and pyrite oxidation. The Cenozoic aquifers are dominated by carbonate dissolution and desulfurization. The Permian aquifers are impacted mainly by cation exchange and sulfate dissolution, followed by pyrite oxidation. The Carboniferous aquifers are mainly impacted by dissolving sulfate, followed by pyrite oxidation and cation exchange. The hydrogeochemical evolution of the aquifers was controlled by mining activities and tectonic changes, and a certain regularity in space. For the Cenozoic aquifers, sulfate dissolution and cation exchange increase from west to east, and desulfurization weakens. For the Permian aquifers, cation exchange and sulfate dissolution are stronger near synclines and faults, pyrite oxidation is enhanced, and desulfurization decreases from the middle to the east of the mining area. For the Carboniferous aquifers, there is a higher dissolution of rock salt, pyrite oxidation, and cation exchange from west to east, and the desulfurization effect weakens.

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Mechanism of mine water inrush from overlying porous aquifer in Quaternary: a case study in Xinhe Coal Mine of Shandong Province, China

Cited by 43 publications

References 40 publications

Land Subsidence Estimation for Aquifer Drainage Induced by Underground Mining

Land Subsidence Estimation for Aquifer Drainage Induced by Underground Mining

Grouting Mechanism of Cement‐Based Slurry in a Concentric Annulus under High Groundwater Pressure

Hydrogeochemical Evolution and Control Mechanism of Underground Multiaquifer System in Coal Mine Area

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