Influence of water erosion on fire hazards in a coal waste dump — A case study

Różański, Zenon; Wrona, Paweł; Pach, Grzegorz; Niewiadomski, Adam; Markowska, Małgorzata; Wrana, Aleksander; Frączek, R.; Balcarczyk, Leszek; Quintana, Guillermo Vaquero; Ruiz, David de Paz

doi:10.1016/j.scitotenv.2022.155350

Cited by 5 publications

(6 citation statements)

References 20 publications

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“…In addition, publications involved environmental management primarily concentrate on environmental monitoring of the tailings reservoir [33-35, 43, 45], identifying acid mine drainage [36,37], assessing environment of waste dumps [40,42,44]. For safety and risk management in mine waste dumps, UAV application focus mostly on deformation monitoring [54,63], stability analysis [17], determination of particle size distribution [55][56][57], detection of spontaneous combustion [26,58,61], investigation of soil erosion [59,60,62]. Furthermore, the results of the review showed that most of the studies were conducted in recent years and the number increased gradually over the years, from 1 study in 2016 to 10 studies in 2022.…”

Section: Discussion and Recommendationmentioning

confidence: 99%

“…As a result, the concern arises as to whether heavy rain can cause water erosion of the dump slope, increasing the likelihood of the dump's self-ignition. For this purpose, [59] studied the amount of rainfall, changes in the status of the slope surface, and the thermal operation of the chosen dump. Moreover, the state of mining waste dumps is impacted by precipitation, especially intense rainfall.…”

Section: Safety and Risk Managementmentioning

confidence: 99%

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Analiza facjalna i interpretacja środowiska depozycyjnego górnego oligocenu, Blok 09-2/10, basen Cuu Long

NGUYEN,

LE,

NGUYEN

et al. 2023

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W artykule przedstawiono facje i środowisko osadów górnego oligocenu w rejonie bloku 09-2/10 na podstawie analizy sejsmicznej i danych ze studni z sąsiadujących obszarów. Wyniki interpretacji danych sejsmicznych wskazują, że osady górnego oligocenu są ograniczone przez górne reflektory sejsmiczne C, górne D. Środowisko składa się z lagun, jezior i głębokich jezior. Sejsmologiczna analiza facji zidentyfikowała 3 facje, w tym facje sejsmiczne o średniej do słabej amplitudzie odbicia, średnio ciągłe, niskiej częstotliwości obrazują osady jeziorne (80%) w centrum jeziora. Silnie odblaskowe facje sejsmiczne, klinoformy sigmoidalne obrazują osady nadjeziorne (15%) rozmieszczone w szelfie nadjeziornym. Facje sejsmiczne o średniej i ciągłej amplitudzie słabo obrazują aluwialne osady (5%) w regionie północno-zachodnim. Kierunek transportu osadów na tym obszarze przebiega głównie z północnego zachodu i południowego zachodu. Sekwencje piaskowców rozmieszczone są na zboczach jeziora oraz na dnie jeziora.

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Section: Discussion and Recommendationmentioning

confidence: 99%

Section: Safety and Risk Managementmentioning

confidence: 99%

Analiza facjalna i interpretacja środowiska depozycyjnego górnego oligocenu, Blok 09-2/10, basen Cuu Long

NGUYEN,

LE,

NGUYEN

et al. 2023

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“…The general slopes of the Janina mine waste dump have a slight inclination, not exceeding 30 • . Intensive rainwater runoff along the fall line was observed due to the lack of an proper drainage system [37,38].…”

Section: General Characteristics Of the Janina Mine Waste Dumpmentioning

confidence: 99%

“…The dump has a s area of 33.51 ha and a storage capacity of approximately 8 million m 3 (~13 million Waste material from the mechanical coal processing plant contains 33% coarse grain 67% fine grains and, separately, contained sand (28.5%), silt (22.5%), and clay (16% general slopes of the Janina mine waste dump have a slight inclination, not exce 30°. Intensive rainwater runoff along the fall line was observed due to the lack proper drainage system [37,38].…”

Section: General Characteristics Of the Janina Mine Waste Dumpmentioning

confidence: 99%

Slope Stability Numerical Analysis and Landslide Prevention of Coal Mine Waste Dump under the Impact of Rainfall—A Case Study of Janina Mine, Poland

et al. 2022

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In Poland, the mining waste from underground coal mines is commonly deposited in surface dump sites, forming slopes or piles of materials dozens of meters high. Because of the loose structure of a mine waste dump slope, landslides may occur after a heavy rainfall. This requires significant labor costs in reforming the mine waste dump sites and disturbs the continuity of the depositing operations. Moreover, if the mine waste dump sites located in the built-up areas, such as in the Janina mine waste dump, landslides apparently can threaten even lives and properties. Therefore, a mine waste dump stability analysis is necessary for ensuring safety. In this paper, slope stability analysis was conducted using numerical modeling under the impact of rainfall for the Janina mine waste dump, located in Libiąż, Poland. The results indicated that slope tends to loose stability in case of high rainfall intensity and short duration. Then, slope reinforcement using soil nailing and steel mesh was proposed to prevent landslide under the impact of high rainfall intensity. Once again, slope stability analysis was carried out with selected reinforcement. Meanwhile, slope monitoring was performed to assess the slope reinforcement implementation at the Janina mine waste dumps against the impact of high rainfall intensity. Based on the modeling and monitoring outcomes, assessments of slope stability and selected landslide prevention measures for the Janina mine waste dump under the impact of rainfall were presented.

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“…In previous works, the influence of mine waste rock dumps on environmental components [17][18][19], the rational placement of dumps taking into account the migration of pollutants [20,21], the stability of slopes of bulk waste rock dumps [22][23][24][25], the sources of mine waste rock formation on the surface [26][27][28] have been studied. In addition, concepts and strategies for large-scale processing of mine waste rock dumps and tailings have been developed [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Influence of waste rock dump placement on the geomechanical state of underground mine workings

Petlovanyi

Sai

Malashkevych

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This paper is devoted to assessing the influence of waste rock surface dumps on the geomechanical state of underground mine workings. The conditions of the Pivdenno-Bilozerskyi high-grade iron ore field are chosen as the research object. To study the influence of dump placement and the depth of mine working on the mass stress state on the contour of sublevel drifts, a numerical modeling methodology based on the SolidWorks software package has been developed. This methodology involves the substantiation of the elements and properties of the geomechanical model, as well as the calculation scheme. Polynomial patterns of changing stress value in the hanging wall drift sides have been determined in the depth intervals of 440–740 m depending on the distance of the dump to the geometric center of the stope chamber. It has been revealed that the degree of the waste rock dump influence on the stress state gradually decreases with depth. It has been found that the maximum degree of the waste rock dump influence is observed on the upper horizons. When the waste rock dump is located above the geometric center of the future stope chamber that the stress value on the contour of the hanging wall drift can increase up to 10% compared to the absence of a dump on the earth’s surface. The research results are important for designing stable parameters for supporting sublevel drifts in difficult conditions of occurrence of the hanging wall rocks.

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Influence of water erosion on fire hazards in a coal waste dump — A case study

Cited by 5 publications

References 20 publications

Analiza facjalna i interpretacja środowiska depozycyjnego górnego oligocenu, Blok 09-2/10, basen Cuu Long

Analiza facjalna i interpretacja środowiska depozycyjnego górnego oligocenu, Blok 09-2/10, basen Cuu Long

Slope Stability Numerical Analysis and Landslide Prevention of Coal Mine Waste Dump under the Impact of Rainfall—A Case Study of Janina Mine, Poland

Influence of waste rock dump placement on the geomechanical state of underground mine workings

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