coal mining subsidence raniganj pdf

Assessing subsidence susceptibility to coal mining using ...

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.

Background review - Subsidence from coal mining …

Background review: subsidence from coal mining activities Major underground coal mining in Australia mainly occurs in the coal basins of New South Wales and Queensland. Longwall is currently the most common method of underground coal mining in Australia, as it is safer and more efficient in extracting coal than other extraction techniques.

RANIGANJ - thelifeindia.in

The Raniganj coalfield has a mining history of nearly two centuries. It has been a key source of coal in India, both before and after Independence. However, 200 years of mining activity has caused significant environmental impact in the region, where Raniganj coalfield is located. While reports of land subsidence in coalfield region

[ RANIGANJ COAL FIELD, WEST BENGAL ] - Mines

DAMODAR-KOEL VALLEY BASIN BELT 24° 50 0 50km Scale 89325.75 Million tonne coal resource (29% of national total) 31712.01 Million tonne coking coal resource (93% of …

Crucial Factors Influencing Environmental ... - IJEDR

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 ...

(PDF) Prediction of subsidence due to coal mining in ...

~NG~NN!R~NG GI~©LCilG'Y ELSEVIER Engineering Geology 39 (1995) 103-111 Prediction of subsidence due to coal mining in Raniganj coalfield, West Bengal, India Ramesh P. Singh, Ram N. Yadav Department o f Civil Engineering, Indian Institute o f Technology, Kanpur - - 208 016, India Received 30 May 1993; revised version accepted 14 November 1994 Abstract Raniganj …

Subsidence prediction of overburden strata and ground ...

Shallow coal seam with thick soil layer is widely reserved in the Jurassic Coalfield, Western China, mining-induced subsidence represents complex characteristics. Combining with …

Voids over Parts of Jharia and Raniganj Coal fields, India

and Mining Geophysics Ph. D thesis title: Electrical Resistivity Tomography for Mapping of Coal Mine Voids over Parts of Jharia and Raniganj Coal fields, India 5. Work experience: Designation Institute/company From To Nature of Work National Postdoctrol Fellow (N-PDF) CSIR-CIMFR 6th Feb, 2017 5th Feb, 2019 Research work Project Assistant

(PDF) COAL MINING METHODS - ResearchGate

Coal is an organic sediment consisting of a complex mixture of substances. It has a lot of commercial and industrial applications. It is an energy …

ANALYSIS OF SUBSIDENCE AND STABILITY OF PILLARS …

predominantly followed in India compared to the former. Most of the coal mining is done by the Bord and Pillars Method. 1.1 Objective Stability analysis of subsidence in coal mine and Study of strength of the pillar, stress distribution over the pillar through empirical and numerical modelling.

Environmental Problems Analysis of Coal Mining in …

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

Surface subsidence in Illinois resulting from coal mining

CONTENTS PAGE ChapterI—Introduction 11 Areainvestigated., 11 Scopeandobjectofreport, 11 Acknowledgments 13 Illinoiscoalfieldandproductiondata 15 ChapterII ...

Subsidence from Underground Mining: Environmental …

phasis is on coal mining. The time to plan for subsidence impacts is well before mining begins, not after surface effects are noticed. Because subsidence due to underground mining may be inevitable, the relevant questions to be asked are how much, when, and where, and what abatement procedures are possible and might be necessary.

Environment Management in Mining Areas (A Study of ...

Raniganj Coal Field of Eastern Coal Field Ltd. and Jharia coalfield of BCCL are not an exception in this regard. Eminent Research scholars have done many research works in India regarding coalfield. But here the author wants to emphasize the environmental impact of the Raniganj and Jharia coal mining projects through this research work.

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

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 …

Introduction to Longwall Mining and Subsidence ver2

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.

Monitoring Management Subsidence Induced Longwall …

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

State, Market and the Crisis in Raniganj Coal Belt

of coal, was Rs 4,200 million. But before we look at the contents of the ICICI report, State, Market and the Crisis in Raniganj Coal Belt Kuntala Lahiri-Dutt The recent decision to close down 64 'uneconomic' collieries in ECL's jurisdiction would render 72,000 people unemployed, besides hurting the economy of the Raniganj coal belt.

COAL MINE LAND SUBSIDENCE MONITORING BY USING …

COAL MINE LAND SUBSIDENCE MONITORING BY USING SPACEBORNE INSAR DATA-A CASE STUDY IN FENGFENG, HEBEI PROVINCE, CHINA Li Cao a, Yuehua Zhang a, Jianguo He a, Guang Liu b,Huanyin Yue b, Runfeng Wang a, Linlin Ge c a Hebei Bureau of Surveying and Mapping, No.495, Zhongshandong Road, Shijiazhuang, Hebei, P.R.China, …

IDENTIFICATION AND MEASUREMENT OF MINING …

The coal mining under the city is carried out by 4 coalmines and up to 1987 also by the Zn-Pb ore mine, which operates on the same area, but on shallower level. The summarized thickness of mined out coal banks is 15 to 25 m in the western edges reaching 40 m in the eastern part of the area.

Susceptible Development: Impact of Coal Mining on ...

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.

China Anhui Province Huainan City Coal Mining …

continuous coal resources mining, a large area of ground collapsed; such coal mining subsidence area affects five districts and one county of the whole city, including 27 towns; the total subsidence area is about 204.6 km 2, which occupies 7.9% of the whole city's area;

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

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 …

CHAPTER 11 Mining Technology - Princeton University

derground coal mining technologies in the West, including:1) capital require- ments, 2) resource recovery, 3) labor, 4) production and productivity, 5) envi-ronmental impacts, and 6) health and safety. A number of technological innovations have been developed recently for under-ground coal mining, but the greatest near-

Changing Land use Pattern in the Raniganj Coal Belt and ...

Manna A, Maiti R. Opencast Coal Mining Induced Defaced Topography of Raniganj Coalfield in India - Remote Sensing and GIS Based Analysis, Journal of Indian Society of Remote Sensing, 2014; DOI 10.1007/s12524-014-0363-y