http://13.232.72.61:8080/jspui/handle/123456789/428 2026-01-09T13:03:49Z 2026-01-09T13:03:49Z Anand, Manjunath., Paul, Partha Sarathi. Paul, Biswajith http://13.232.72.61:8080/jspui/handle/123456789/3372 2020-02-29T16:02:29Z 2016-08-01T00:00:00Z

Title: ENVIRONMENTAL AND SOCIO – ECONOMICAL IMPACTS DUE TO MINE CLOSURE Authors: Anand, Manjunath., Paul, Partha Sarathi.; Paul, Biswajith Abstract: Mining activities stimulate environmental and socioeconomic impacts on the local and mining communities right from its commencement and continues throughout the life cycle of the mine. The communities in the neighbourhood of mining gradually adopt a typical life-style that is highly influenced by the mining. The impacts exaggerate once the mining activities ceases. Mine closures can result in major adverse socio-economic impacts on local and mining communities, in turn affecting their overall quality of life. Thus, it is essential to predict the socio economic impacts of mine closure on local and mining communities. This paper makes an attempt to develop a conceptual model for post closure quality of life to assess the socio-economic impacts of mine closure on local and mining communities.

2016-08-01T00:00:00Z Raja, S. Mandal, Prabhat Kumar Paul, P. S. Das, Arka Jyoti http://13.232.72.61:8080/jspui/handle/123456789/2225 2019-05-17T10:15:44Z 2018-06-01T00:00:00Z

Title: Prediction of Coal Bump With Respect To Local Mine Stiffness and Post-Failure Stiffness using Numerical Modelling Authors: Raja, S.; Mandal, Prabhat Kumar; Paul, P. S.; Das, Arka Jyoti Abstract: In India, coal deposits under the shallow depth of cover amenable by opencast and underground mining are fast exhausting and the focus is being shifted towards the deepseated coal deposits. But, due to the complex geo-mining conditions, techno-economic indices and non-availability of suitable technological solutions, the mining industry is facing tremendous difficulties to exploit the deep-seated coal deposits. Deep-seated coal deposits require immediate attention for its successful exploitation. Underground exploitation of the deep-seated deposits faces a number of geotechnical problems like coal bumps, pillar squeezes, sudden collapse, floor heaving etc. Coal bump is the most difficult, hazardous, long-standing engineering problem associated with the underground coal mining nearly from past three centuries. Coal bump induces the catastrophic failure of mine structures resulting in loss of life and damage to the machinery. If anyone could identify the burstproneness before the commencement of the mining operation, a suitable method of mining can be suggested for efficient extraction of coal and can avoid the major strata control problems. In this paper, a brief review of causes, occurrence and prediction of coal bumps has been described. A case study mine has also been considered for prediction of coal bump using numerical modelling.

2018-06-01T00:00:00Z Manjunath, S. Santhosh, R. Raja, S. Jemishkumar, V. Modi http://13.232.72.61:8080/jspui/handle/123456789/458 2018-10-12T07:05:51Z 2014-06-01T00:00:00Z

Title: Low Cost Deflouridation of Water Using Brick Pieces. Authors: Manjunath, S.; Santhosh, R.; Raja, S.; Jemishkumar, V. Modi Abstract: Excess fluoride in water causes health hazards to the natural environment. The removal of fluoride was attempted using natural brick pieces of two sizes 6.3- 4.75 mm and 16-12 mm. Each material was set up in a PVC column and defluoridation capacities of these materials were studied with respect to initial concentration of fluoride and time. Concentration of fluoride in water is estimated for corresponding contact time using kinetic up flow equations. The study reveals that the estimated concentrations satisfactorily fit the measured concentrations and bricks of size 6.3 - 4.75 mm have good fluoride removal capacity of 90.33% for an initial concentration of 3mg/l, 61.85% for removing fluoride of 7mg/l and a brick of size 16-12 mm has an efficiency of 79.33% and 48.25 % respectively.

2014-06-01T00:00:00Z