Risk assessment and prevention of surface subsidence in deep multiple coal seam mining under dense above-ground buildings: Case study

Zhang, Jixiong; Sun, Qiang; Fourie, Andy; Feng, Jie; Dong, Xiangjian

doi:10.1080/10807039.2018.1471579

Cited by 21 publications

(14 citation statements)

References 19 publications

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“…They presented an approach to building damage risk assessment in mining induced areas, which is based on a comparison between buildings strength and terrain deformation. In another work [53], the authors proposed an integrated system comprising deep mining, coal-gangue dressing, and underground backfill mining. They also developed many numerical models for buildings aimed at studying the surface subsidence and deformation.…”

Section: Thematic Analysis Of the Conducted Reviewmentioning

confidence: 99%

Risk Assessment Methods in Mining Industry—A Systematic Review

Tubis

Werbińska-Wojciechowska

Wroblewski

2020

Applied Sciences

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Recently, there has been a growing interest in the mining industry in issues related to risk assessment and management, which is confirmed by a significant number of publications and reports devoted to these problems. However, theoretical and application studies have indicated that risk in mining should be analyzed not only in the human factor aspect, but also in strategic (environmental impact) and operational ones. However, there is a lack of research on systematic literature reviews and surveys of studies that would focus on these identified risk aspects simultaneously. Therefore, the purpose of this article is to develop a literature review in the area of analysis, assessment and risk management in the mining sector, published in the last decade and based on the concept of a human engineering system. Following this, a systematic search was performed with the use of Primo multi-search tool following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The main inclusion criteria were: (a) not older than 10 years, (b) article written in English, (c) publication type (scientific article, book, book chapter), (d) published in chosen electronic collections (Springer, Taylor and Francis, Elsevier, Science Direct, JSTOR). This resulted in the selection of the 94 most relevant papers in the area. First, the general bibliometric analysis was conducted. Later, the selected papers in this review were categorized into four groups and the critical review was developed. One of the main advantages of this study is that the results are obtained from different scientific sources/databases thanks to using a multi-search tool. Moreover, the authors identified the main research gaps in the area of the implementation of risk management in the mining industry.

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Section: Thematic Analysis Of the Conducted Reviewmentioning

confidence: 99%

Risk Assessment Methods in Mining Industry—A Systematic Review

Tubis

Werbińska-Wojciechowska

Wroblewski

2020

Applied Sciences

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“…As to the SWBM technique, the key to decreasing overlying strata movement and surface subsidence is to control the effective thickness of the backfill materials after being compacted under the load of the overlying strata. After being filled into goaf, the backfill materials serve as the main support and bear most of the load imposed by the overlying strata so they are compacted [26][27], which is equivalent to lowering the mining height. Therefore, an equivalent mining height (EMH) theory [23] was presented to study the pattern of SWBM-induced surface subsidence.…”

Section: Characteristics Of Strata Movement and Surface Subsidencementioning

confidence: 99%

Reducing Surface Subsidence Risk Using Solid Waste Backfill Technique: a Case Study under Buildings

Li¹,

Zhang²,

Sun³

et al. 2019

Pol. J. Environ. Stud.

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Coal mining-induced surface subsidence causes many environmental problems and geological hazards, including damage to buildings, depletion of water resources, and land desertification. However, numerous coal resources in China are buried under buildings. To solve these problems, a solid waste backfill mining (SWBM) technique has been proposed to control the surface subsidence under buildings. This paper introduced the fundamental principle of the SWBM technique and then presented a model based on the theory of equivalent mining height (EMH) to predict surface subsidence. In addition, the compaction effects of backfill materials were obtained through an experiment on the compaction properties thereof. Afterward, measuring transects were arranged to conduct field observation of surface subsidence: when the backfill materials are sufficiently compacted, the compression degree is 0.13 with 13% deformation. Moreover, the measured maximum subsidence was 18 mm, which is lower than that predicted for the maximum deformation of a nearby building. In addition, surface buildings were slightly influenced by coal mining and no obvious cracks were found. Therefore, this technique provides a new approach for controlling the surface subsidence induced by coal mining.

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“…Many scholars have researched the aforementioned problems. Miao Xiexing [8~10] , Zhang Jixiong [11][12][13] , and Zhang Qiang [14,15] have advanced the equivalent mining height theory, key layer control theory, main roof control theory, and immediate roof control theory. These studies concluded that solid back ll mining can be regarded as extremely thin coal seam mining, allowing the surface subsidence to be controlled.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Control Effect and Influencing Factors of Urban Surface Deformation in Underground Coal Mining With Solid Backfilling

Wang¹,

Zhang²,

Wu³

et al. 2021

Preprint

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To solve the problems of surface deformation and destruction of buildings caused by urban mining and realise coordinated development of mining cities, the solid backfilling method was used to extract coal resources beneath the buildings of Tangshan. Based on surface deformation monitoring data of the continuously operating reference station (CORS) system for the past 5 years, the surface deformation process caused by solid backfilling was analysed. The final results revealed a maximum surface subsidence of 66 mm in the T zone coal area and 31 mm in the F zone area. Furthermore, the surface control effects of the caving method and the solid backfilling method were compared and analysed, and it was shown that solid backfilling could meet the surface building set-up requirements. Moreover, based on the probability integral method, the effects on surface deformation due to the surface length of the F zone, compression ratio, and coal pillar width were analysed, and the effects on the prediction results due to the subsidence factor, tangent of the major effective angle, and offset distance of the inflection point were studied. The results showed that the compression ratio is the main factor controlling the surface deformation and that it should be kept above 80% for solid backfilling of urban mines. The subsidence factor should be 0.82 and the tangent of the major effective angle should be 2.15 when the surface subsidence of solid backfilling is to be predicted. This paper provides a technical reference for realisation of urban mining with solid backfilling.

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Risk assessment and prevention of surface subsidence in deep multiple coal seam mining under dense above-ground buildings: Case study

Cited by 21 publications

References 19 publications

Risk Assessment Methods in Mining Industry—A Systematic Review

Risk Assessment Methods in Mining Industry—A Systematic Review

Reducing Surface Subsidence Risk Using Solid Waste Backfill Technique: a Case Study under Buildings

Analysis of the Control Effect and Influencing Factors of Urban Surface Deformation in Underground Coal Mining With Solid Backfilling

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