coal mining subsidence raniganj

coal mining subsidence raniganj

Impact of rainfall on residual subsidence in old coal mine ...

Subsidence over old coal mine workings can not be avoided if the underground workings are not fully filled. Existence of fire, illegal mining operation and seasonal impact (rainfall) aggravate proneness of subsidence over old workings. This paper deals with the causative factors of subsidence over o …

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Environmental Problems Analysis of Coal Mining in …

2008-10-6 · Asansol, the coal-mining-industrial centre, is the second largest city in West Bengal, after Kolkata. Asansol lies on exposed Gondwana rocks and consists mostly of undulating laterite soil. It forms the lower edge of the Chota Nagpur plateau, which occupies most of Jharkhand. Raniganj Coalfield, is the birth place of coal mining in the

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Susceptible Development: Impact of Coal Mining on ...

2014-2-1 · 1. To find out the impact of coal mining on environment in Raniganj and Jharia coalfield. 2. To find out the various components of the environment related with the coal mining projects. 3. To elucidate the coal mining practice in Raniganj and Jharia coalfield. 4. To analyze the various proximate factors influencing the coal mining projects. 5.

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Introduction to Longwall Mining and Subsidence ver2

2018-10-8 · Mine Subsidence Engineering Consultants 5 August 2007 Fig. 1.4 Typical Plan View of a Series of Longwall Panels Fig. 1.4 shows a typical layout of a group of longwalls. Before the extraction of a longwall panel commences, continuous mining equipment extracts coal to form roadways (known as headings) around the longwall panel.

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Environment Impact Assessment of Coal Mining

2013-11-13 · Raniganj coal mines:Out of 850 hectare land in Raniganj town, 90 hectares affected by fire and subsidence. 8) Socio – economic factor - Coal mining affects communities at multiple levels.

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State, Market and the Crisis in Raniganj Coal Belt

- the Raniganj region pioneered coal mining in India - has left its imprint on the region''s economy, physical environ-ment, the attitudes, values, beliefs and perceptions of its mining-linked popula-tion and its socio-political scene. The region has a land-dereliction prob-lem, problems of an underground void, land subsidence and mine fires, a ...

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Prediction of subsidence due to coal mining in Raniganj coalf…

1995-5-1 · Raniganj coalfield is in a major coal-producing area and suffers subsidence problems due to underground mining. The occurrence of a thick coal seam at shallow depth is the main reason for the subsidence and as a result collapses have occurred in many coal mines in recent years.

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ResearchGate | Find and share research

Key words : Coal mine, subsidence, rainfall. mine workings, Jharia and Raniganj coalfields I. Introduction Subsidence is a time-dependent deformation of the sub-surface ground, which is created by ...

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Crucial Factors Influencing Environmental Degradation: A ...

2021-8-10 · Index Terms - Environmental degradation, Coal mining, Raniganj coal mine, West Bengal _____ I. INTRODUCTION: NATURE OF ENVIRONMENT PROBLEM Among the multiple adverse impacts of coal mining on the environment, subsidence damages, ravages of mine fires, and air and water pollution are severe in the Lower kenda and very large in the Raniganj ...

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Assessing subsidence susceptibility to coal mining using ...

2020-8-7 · Coal mining subsidence parameters. Coal mining activities in Raniganj have been carried out since more than 20 decades. Most of the subsidence is caused due to very old abandoned structures. Pillars in shallow upper coal zone have become weak. This zone is now waterlogged and inaccessible.

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Deriving Dynamic Subsidence of Coal Mining Areas Using ...

The results show that the maximum subsidence in the Datong coal mining area reached about 1.26 m between 1 July 2007 and 28 February 2009, and the accuracy of the estimated dynamic subsidence is about 0.017 m. Compared with the linear and cubic polynomial models of the traditional time-series InSAR techniques, the accuracy of dynamic subsidence ...

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Identification of Land Subsidence and Management …

Coal mining, open cast/ 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

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—— ...

2018-6-28 · ——-study on dynamic monitoring of coal mining subsidence and its impact on urban expansion - a case study of kailuan coal mine.docx,ARCGIS ...

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First coal mine was opened at which place?a)Korba ...

Nov 14,2021 - First coal mine was opened at which place?a)Korba, Chhattisgarhb)Bokaro, Jharkhandc)Raniganj, West Bengald)Talcher, OdishaCorrect answer is option ''C''. Can you explain this answer? | EduRev UPSC Question is disucussed on EduRev Study Group by 107 UPSC Students.

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REMOTE SENSING DETECTION FOR SUBSIDENCE …

2017-1-18 · images of Yanzhou coal mining area acquired in 1987. It was 1revealed that, in Yanzhou mining area, the area of solid-waste dumps and mining subsidence-resulted water bodies in 2002 was 0.90 times and 2.87 times greater than that in 1987 respectively. The main changed areas of mining subsidence-resulted water bodies were located nearby Nantun,

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A new model for predicting surface mining subsidence: the ...

2018-4-16 · Mining-induced problems in the coal field seriously threaten the normal operation of the mines and cause significant property losses and environmental disruption. Thus, high precision subsidence prediction is important on the processing of mining subsidence problems. In this paper, we analyzed the formation mechanism of skewed subsidence. The rock beam on the side of the gob and …

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Illegal mining forces Raniganj residents to eat now and ...

2019-4-26 · Illegal mining forces Raniganj residents to eat now and die tomorrow. Villages in Asansol-Raniganj coal belt, which go to polls on April 29, 2019, stand on precarious land that might collapse any day, but the government doesn''t care. An …

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Coal mining subsidence damage

2019-1-21 · The Coal Mining Subsidence Act 1991 covers actual damage caused by a shaft or mine entry and the Coal Authority may, additionally, have duties with respect to …

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Assessing subsidence susceptibility to coal mining using ...

Assessing subsidence susceptibility to coal mining using frequency ratio, statistical index and Mamdani fuzzy models: evidence from Raniganj coalfield, India Author: Sufia Rehman, Mehebub Sahana, Shyamal Dutta, Haroon Sajjad, Xuang Song, Kashif Imdad, Jie Dou Source: Environmental earth sciences 2020 v.79 6 pp. 380 ISSN: 1866-6280 Subject:

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2227-Article Text-4473-2-10-20180829.pdf

2018-8-29 · View 2227-Article Text-4473-2-10-20180829.pdf from CT -001 at Ashoka University. IJRDO - Journal of Business Management ISSN: 2455-6661 SUBSIDENCE – A MAJOR EFFECT OF COAL MINING IN RANIGANJ

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Prediction of subsidence due to coal mining in Raniganj ...

The of coal seams. average values of uniaxial compressive strength Subsidence due to underground excavations are (at), Brazalian tensile strength (at) and Young''s observed in the Raniganj coalfield from the earlier modulus (E) for the stratigraphic section are given days of coal mining, and has attracted the attention in Fig. 1 (Krishna, 1991).

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Land Subsidence Data Base

2018-1-25 · Prediction of subsidence due to coal mining in Raniganj coalfield, West Bengal, India Review on current status and challenging issues of land subsidence in China Rare and vulnerable species in the mollusc communities in the mining subsidence reservoirs of an industrial area (The Katowicka Upland, Upper Silesia, Southern Poland)

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Monitoring Management Subsidence Induced Longwall …

2021-10-3 · Monitoring and management of subsidence induced by longwall coal mining activity page vi Figure 2.17 Representation of surface water diversion into subterranean flow and rock bar

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(PDF) Assessing subsidence susceptibility to coal mining ...

Assessing subsidence susceptibility to coal mining using frequency ratio, statistical index and Mamdani fuzzy models: evidence from Raniganj coalfield, India

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Environmental degradation in Raniganj Coalfields lead to ...

2021-3-14 · The cave-ins are likely fallout of open-cast mining – after all, the explosives that we use to blast through layers of rocks and soil to reach coal reserves also shake up the earth all around," Moloy Chatterjee, a labour supervisor in the Bhanora coal mine, explained to Mongabay-India. Raniganj coalfield is India''s oldest coal mining area.

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Mining Industry

West Bengal is 3rd largest in India in mineral production accounting for about one-fifth of total mineral production al accounts for 99% of extracted minerals of the state, which has 11% of the total national coal reserves. Coal: In 2015, the state''s total coal reserves/resources were estimated at 31.43 billion tonnes, major coal fields being at Raniganj, Barjora etc, while coal production ...

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Coal mining GPS subsidence monitoring technology and …

2012-11-16 · Coal mining GPS subsidence monitoring technology and its applicati.. Coalmining GPS subsidence monitoring technology itsapplication Wang Jian PengXiangguo XuChang hui KeyLaboratory LandEnvironment DisasterMonitoring SBSM,China University China ...

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Impact of rainfall on residual subsidence in old coal mine ...

Existence of fire, illegal mining operation and seasonal impact (rainfall) aggravate proneness of subsidence over old workings. This paper deals with the causative factors of subsidence over old workings and its relation with rainfall with reference to Jharia …

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Subsidence from Underground Mining: Environmental …

2010-10-30 · SUBSIDENCE PRODUCED BY LONGWALL COAL MINING The mechanical aspects of the subsidence pro­ cess in flat-lying coal bearing rocks mined by longwall methods are reasonably well known, compared to room-and-pillar mining, and are documented abundantly in the literature. This knowledge may be summarized as follows. ...

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10.1016/0013-7952(94)00062-7 | DeepDyve

2020-6-11 · Raniganj coalfield is in a major coal-producing area and suffers subsidence problems due to underground mining. The occurrence of a thick coal seam at shallow depth is the main reason for the subsidence and as a result collapses have occurred in many coal mines in recent years. We attempt to predict the subsidence occurring in Indian coalfields in general and, in particular, in the Raniganj ...

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