scholarly journals Study of Ground Movement in a Mining Area with Geological Faults Using FDM Analysis and a Stacking InSAR Method

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhengyuan Qin ◽  
Vivek Agarwal ◽  
David Gee ◽  
Stuart Marsh ◽  
Stephen Grebby ◽  
...  
Keyword(s):  
Coal Mining ◽  
Fault Location ◽  
3D Model ◽  
Mining Area ◽  
Fault Reactivation ◽  
Ground Movement ◽  
Coal Extraction ◽  
Mining Activities ◽  
Geological Faults ◽  
The Impact

Underground coal mining activities and ground movement are directly correlated, and coal mining-induced ground movement can cause damage to property and resources, thus its monitoring is essential for the safety and economics of a city. Fangezhuang coal mine is one of the largest coalfields in operation in Tangshan, China. The enormous amount of coal extraction has resulted in significant ground movement over the years. These phenomena have produced severe damages to the local infrastructure. This paper uses the finite difference method (FDM) 3D model and the stacking interferometric synthetic aperture radar (InSAR) method to monitor the ground movement in Fangezhuang coalfield during 2016. The FDM 3D model used calibrated Fangezhuang geological parameters and the satellite InSAR analysis involved the use of ascending C-band Sentinel-1A interferometric wide (IW) data for 2016. The results show that the most prominent subsidence signal occurs in mining panel 2553N and the area between panel 2553N and fault F0 with subsidence up to 57 cm. The subsidence observed for the FDM 3D model and stacking InSAR to monitor land deformation under the influence of fault are in close agreement and were verified using a two-sample t-test. It was observed that the maximum subsidence point shifted towards the fault location from the centre of the mining panel. The tectonic fault F0 was found to be reactivated by the coal mining and controls the spatial extent of the observed ground movement. The impact of dominant geological faults on local subsidence boundaries is investigated in details. It is concluded that ground movement in the study area was mainly induced by mining activities, with its spatial pattern being controlled by geological faults. These results highlight that the two methods are capable of measuring mining induced ground movement in fault dominated areas. The study will improve the understanding of subsidence control, and aid in developing preventive measures in Fangezhuang coalfield with fault reactivation.

scholarly journals Identification of Land Subsidence and Management Using Cadastral Techniques, Mining Area of Raniganj, Barddhaman District, India

2016 ◽  
Vol 6 (2) ◽  
pp. 52
Author(s):  
Sonjay Mondal ◽  
Debashish Chakravarty ◽  
Jatisankar Bandyopadhyay ◽  
Kunal Kanti Maiti
Keyword(s):  
Coal Mining ◽  
Land Subsidence ◽  
Mining Area ◽  
Surface Structures ◽  
Waste Materials ◽  
Mining Activities ◽  
Agricultural Activities ◽  
Severe Damage ◽  
Concerted Effort ◽  
Impact Of Mining

Coal mining, open crest/underground adversely affects the Eco-system. Raniganj area known as mining zone, but several time natural hazards (land subsidence) occurs in the area, Subsidence in old workings leads to severe   damage to surface structures. it is very much important that suitable assessment studies to learn the potential adverse impact of mining on environmental ecosystem (flora, fauna). In the subsequent discussions an attempt has been made to clarify the coal mining activities and its outstanding impact on environment and agricultural activities. The study area region being the foremost coal producing region country, it’s also ranked high in the list of environmentally degraded areas, in mining area have seen that  waste materials are usually stacked as huge dumps in  surroundings. After that those dumps were coupled with coal dumps, because this significant effect impact on land.  The environmental awareness is given our society brought life from mining area another concerted effort for reclamation of the subsided land.

scholarly journals Water Preservation and Conservation above Coal Mines Using an Innovative Approach: A Case Study

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2818
Author(s):  
Yujun Xu ◽  
Liqiang Ma ◽  
Yihe Yu
Keyword(s):  
Coal Mining ◽  
Water Conservation ◽  
Large Scale ◽  
Influencing Factor ◽  
Mining Area ◽  
Mining Operations ◽  
Narrow Strip ◽  
Geological Conditions ◽  
The Impact

To better protect the ecological environment during large scale underground coal mining operations in the northwest of China, the authors have proposed a water-conservation coal mining (WCCM) method. This case study demonstrated the successful application of WCCM in the Yu-Shen mining area. Firstly, by using the analytic hierarchy process (AHP), the influencing factors of WCCM were identified and the identification model with a multilevel structure was developed, to determine the weight of each influencing factor. Based on this, the five maps: overburden thickness contour, stratigraphic structure map, water-rich zoning map of aquifers, aquiclude thickness contour and coal seam thickness contour, were analyzed and determined. This formed the basis for studying WCCM in the mining area. Using the geological conditions of the Yu-Shen mining area, the features of caved zone, water conductive fractured zone (WCFZ) and protective zone were studied. The equations for calculating the height of the “three zones” were proposed. Considering the hydrogeological condition of Yu-Shen mining area, the criteria were put forward to evaluate the impact of coal mining on groundwater, which were then used to determine the distribution of different impact levels. Using strata control theory, the mechanism and applicability of WCCM methods, including height-restricted mining, (partial) backfill mining and narrow strip mining, together with the applicable zone of these methods, were analyzed and identified. Under the guidance of “two zoning” (zoning based on coal mining’s impact level on groundwater and zoning based on applicability of WCCM methods), the WCCM practice was carried out in Yu-Shen mining area. The research findings will provide theoretical and practical instruction for the WCCM in the northwest mining area of China, which is important to reduce the impact of mining on surface and groundwater.

Autochthonic and allochthonic plant detritus as zoobenthos habitat in anthropogenic woodland ponds

2011 ◽  
Vol 40 (1) ◽  
Author(s):  
Aneta Spyra
Keyword(s):  
Coal Mining ◽  
Water Bodies ◽  
Mining Activities ◽  
Upper Silesia ◽  
Southern Poland ◽  
Plant Matter ◽  
Plant Detritus ◽  
Allochthonous Detritus ◽  
Woodland Ponds ◽  
The Impact

AbstractRegardless of origin, all water bodies situated inside forests form a unique habitat for many freshwater animals due to the allochthonous detritus covering the bottom, composed mostly of leaves from waterside trees. For many years these woodland ponds have been considered to be advantageous to regional biodiversity. Investigations were carried out in eight anthropogenic woodland ponds, formed as a consequence of coal mining activities, situated in forest complexes in Upper Silesia (Southern Poland), to evaluate the impact of allochthonic and autochthonic plant detritus on the formation of zoobenthic communities, together with insolation intensity. In sites covered by a layer of allochthonic plant matter, zoobenthos were more abundant compared to places covered by autochthonic detritus. The density of zoobenthos in sun-exposed sites was two to three times greater than in shaded sites.

scholarly journals ENVIRONMENTAL QUALITY ON SURROUNDING COMMUNITY OF COAL MINING AREA IN SAMARINDA, EAST KALIMANTAN, INDONESIA

2019 ◽  
Vol 5 (4) ◽  
pp. 91-98
Author(s):  
Ike Anggraeni ◽  
Annisa Nurrachmawati ◽  
Riza Hayati Ifroh ◽  
Andi Anwar ◽  
Siswanto Siswanto
Keyword(s):  
Air Quality ◽  
Water Sample ◽  
Coal Mining ◽  
Environmental Quality ◽  
Normal Condition ◽  
Oxygen Demand ◽  
Mining Area ◽  
Quality Parameters ◽  
Coal Mining Area ◽  
The Impact

Background: The massive exploration of coal in Samarinda could lead to various environmental consequences, such as metal contamination of soil, toxic materials and sediments in rivers and air pollution. Scanning and exploring the impact of mining on environmental quality will strategic to develop and carry out rehabilitation on damaged ecosystems and as a preventive and adaptive action of the community in responding the threat of global environmental change.Objective: This paper mainly focused on determining environmental quality based on water and air quality parameters (sulfur dioxide/SO2, Nitrogen dioxide/NO2, Carbon monoxide CO and TSP/dust) also determining community perception about the environment.Methods: Water sample taken from Betapus river (upstream and downstream) and well. Air sample taken around residential in coal mining area. Household survey of 305 respondents conducted in five community neighborhoods in area that affected by mining activities. In general, the air quality parameters such as SO2, NO2, CO and TSP at normal condition.Result: The measurement result of wells water revealed that only the pH (power of hydrogen) at normal condition, while BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), Iron (Fe) exceed the threshold and almost all water sample exceeds the threshold in Manganese (Mn). The results of river quality in pH and COD showed that both in the upstream, midstream and downstream on normal condition, while Fe, COD exceeds the threshold. The BOD in the upper, middle parts of the river exceed the threshold.Conclusion: This study found that there had been anomaly in water environment compounds. These indicate that mining has led to the occurrence of water pollution. Therefore, needs reevaluation analysis of environmental impacts document of the mining companies in Bayur Village. It is also important to treating Mn and Fe of well or river water, especially if the water use for drinking.

scholarly journals DINAMIKA KONFLIK MASYARAKAT DAN PEMERINTAH TERHADAP DAMPAK PERTAMBANGAN BATU BARA DI KOTA SAMARINDA

2020 ◽  
Vol 8 (3) ◽  
pp. 213-223
Author(s):  
Sry Reski Mulka
Keyword(s):  
Coal Mining ◽  
Local Community ◽  
Mineral Resources ◽  
Ecological Impacts ◽  
City Government ◽  
Mining Activities ◽  
The Government ◽  
The Impact ◽  
The City

With the availability of mineral resources in the form of coal in the city of Samarinda, it is an advantage for the city government in increasing regional income in the form of taxes and royalties, but with the existence of coal mining activities that have obtained an operating permit from the Samarinda City Government, it has triggered a conflict between the Samarinda City Government. with the local community. This conflict-related relationship cannot be separated from the ecological impacts caused by coal mining activities, in which the government has no commitment to maintaining the quality of the community's environment. In this study, the author wants to analyze how the dynamics of the conflict that occurs between civil society and the Samarinda City Government related to coal mining activities in Samarinda City. In the preparation of this study the authors used qualitative methods. he result of the research is that there is public distrust of the Derah Government in establishing relationships, in the aspect of negotiating the principle that there are differences in views between the government and residents regarding land management, and the needs of residents who are hindered due to the impact of coal mining.

scholarly journals The Impact of Coal Exploitation on Tidal Flat Changes, an Investigation Using Remote Sensing Data in Vietnam

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Thi Lan PHAM ◽  
Si Son TONG ◽  
Thi Thu Ha LE ◽  
Thi Le LE ◽  
Huu Duc HOANG
Keyword(s):  
Remote Sensing ◽  
Coal Mining ◽  
Coal Mine ◽  
Tidal Flat ◽  
Remote Sensing Data ◽  
Tidal Flats ◽  
Mining Activities ◽  
Landsat Images ◽  
Sensing Data ◽  
The Impact

Tidal flat plays a crucial role in socio-economic development and ecological environment.Tidal flats in Ha Long-Cam Pha in Vietnam are impacted by human activities, especially coal miningactivities. Using remote sensing data is able to detect, extract, and monitor the changes of tidal flats andexploited coal mine area with multi-temporal, in various scales, and for a large coverage. This studyaims to investigate the impact of coal mining activities on the changes of tidal flats using remote sensingin Cam Pha, Ha Long, one of the biggest coal basins in Vietnam. Digital Elevation Models (DEMs) oftidal flats constructed by Landsat satellite images acquired in years 1989, 2001, and 2014 are comparedto determine the volume changes. Besides, coal mining activities including coal production, waste rockdump area, and the expansion of open coal mine during the period 1989-2014 are investigated usingcorrespondent Landsat images and the reports from the coal mine companies in the study area. Sedimentsamples in tidal flats are analyzed to determine the origin of the sediments. As the results, organic matterin the tidal flats is dominant with the concentration of 459 g/kg to 607 g/kg, which is evidence for theimpact of coal exploitation on the coastal environment. In addition, the relationship between coal mineactivities and tidal flat variation is well observed in this study.

scholarly journals Influence of Heavy Metals on the Environmental from Tarnita Mining Area

2016 ◽  
Vol 24 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Victor Jucan ◽  
Mihaela Dumitrescu ◽  
Alexandra Raluca Iordan ◽  
Mircea Nicolae Palamaru
Keyword(s):  
Heavy Metals ◽  
Aquatic Ecosystems ◽  
Negative Impact ◽  
Mining Area ◽  
Research Data ◽  
Mining Activity ◽  
Mining Activities ◽  
Before And After ◽  
The Impact ◽  
Soil And Water

Abstract This paper presents aspects related to water pollution with heavy metals from the Tarnita mining area before and after the cessation of the mining activity. The impact of heavy metals on waters is important because these metals have a negative impact on both human health and aquatic ecosystems. All research data showed that, even the mining activities from this area were suspended, the sterile still pollutes the soil and water

scholarly journals Analisis Respon Masyarakat Terhadap Dampak Aktivitas Penambangan Pasir Dan Batu Di Sungai Berni Desa Sumberasri kecamatan Nglegok Kabupaten Blitar

2021 ◽  
Vol 13 (1) ◽  
pp. 44
Author(s):  
Tamara Pingki
Keyword(s):  
Data Analysis ◽  
Mining Area ◽  
Mining Activities ◽  
The Real ◽  
Mining Areas ◽  
The People ◽  
Rock Mining ◽  
The Impact

ABSTRACTSand and stone mining activities along the Berni River in Sumberasri Village, Nglegok District, Blitar Regency are still ongoing, so that the impact on the community is increasingly being felt. The real impact felt by the community is landslides and erosion. The purpose of this study was to analyze the community's response to the impact of sand and rock mining activities in the Berni River, Sumberasri Village, Nglegok District, Blitar Regency. The method used is a survey by conducting interviews with 40 residents who live around the Berni River, Sumberasri Village, Nglegok District, Blitar Regency. Based on the data analysis that has been carried out and explained, most of the people living around the mining area are not disturbed by mining activities because sand and rock mining is their main livelihood. There are 80% of people living in mining areas who admit that mining activities do not interfere with their activities, 90% of people who live in mining areas admit that their health is not disturbed, and 80% of people who live in mining areas admit that they have benefited from sand and rock mining activities. the. However, they all realized that the mining of sand and rock was causing losses, namely that more roads were damaged and erosion and landslides were frequent. Keywords: Mine, Sand and Stone. ABSTRAKAktivitas penambangan pasir dan batu di sepanjang Sungai Berni di Desa Sumberasri, Kecamatan Nglegok, Kabupaten Blitar masih berlangsung sampai saat ini, sehingga dampak di masyarakat semakin dirasakan. Dampak nyata yang dirasakan masyarakat adalah longsor dan erosi. Tujuan dari penelitian ini adalah untuk menganalisis respon masyarakat terhadap dampak aktivitas penambangan pasir dan batu di Sungai Berni, Desa Sumberasri, Kecamatan Nglegok, Kabupaten Blitar. Metode yang digunakan adalah survei dengan melakukan wawancara terhadap 40 warga yang tinggal di sekitar Sungai Berni, Desa Sumberasri, Kecamatan Nglegok, Kabupaten Blitar. Berdasarkan analisis data yang telah dilakukan dan dijelaskan, sebagian besar masyarakat yang tinggal di sekitar area pertambangan tidak mendapat gangguan akibat aktivitas penambangan karena penambangan pasir dan batu tersebut merupakan mata pencaharian utama mereka. Terdapat 80% masyarakat yang tinggal di area pertambangan mengakui bahwa aktivitas penambangan tidak mengganggu aktivitas mereka, 90% masyarakat yang tinggal di area pertambangan mengakui bahwa kesehatan tidak terganggu, dan 80% masyarakat yang tinggal di area pertambangan mengaku mendapat manfaat dari kegiatan penambangan pasir dan batu tersebut. Namun, mereka semua menyadari bahwa penambangan pasir dan batu tersebut menyebabkan kerugian, yaitu semakin banyak jalan yang rusak serta sering terjadi erosi dan longsor. Kata kunci: Tambang, Pasir dan Batu.

Research on the Overlying Strata in Full-Mechanized Coal Mining of Datong Jurassic Coal Multi-Layer Goaf

2012 ◽  
Vol 616-618 ◽  
pp. 402-405 ◽  
Author(s):  
Hong Chun Xia ◽  
Guo Sheng Gao ◽  
Bin Yu
Keyword(s):  
Coal Seam ◽  
Coal Mining ◽  
Coal Pillar ◽  
Mining Area ◽  
Mechanics Model ◽  
Roof Structure ◽  
Geological Conditions ◽  
Seam Mining ◽  
The Impact ◽  
Overlying Strata

According to the specific geological conditions in themulti-layer worked-out areas of Yongding coal seam, by the methods of integration of theoretic analysis, numerical value calculation and so on, we studied movement law of Overlaying Strata and influence of coal pillar in Coal seam mining, obtained the basic law of the overlying strata movement in multiplayer, provides a theoretical basis for the safe and efficient exploitation of the success of multiplayer. Many mining area in China is mining of closed distance coal seam group, By the impact of coal seam in the overlying, face and the tunnel roof structure will be different injury in sub-coal seam mining, Roof structure has changed greatly, even damage and easily take the roof leakage, When the the goaf communication with the overlying coal seams, caused by the induced secondary disasters such as face air leakage, Therefore, exploitation of the law of motion of the overlying strata in the multiplayer is a pressing problem. Exploitation multiplayer seam few theoretical and technical foundation at home and abroad, affecting the validity of the mining, rationality. although a lot of research on theory and technology of coal mining over the years[1~5], But it was not able to an overall comprehensive analysis of upper goaf adjacent goaf and overlying the coal pillar and present mining face, create a dynamic structural mechanics model, which is likely to cause the occurrence of disasters.

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