Journal Articles
Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/19884
Browse
45 results
Search Results
Item A Review on Application of Innovative Techniques for Sustainable Environmental Management in Mines(World Researchers Associations, 2025) Sarapur, M.; Mangalpady, M.This study focuses on the application of innovative techniques for sustainable environmental management in mines. It highlights the importance of minerals as finite and non-renewable natural resources and the role of the mining sector in catering to global energy and industrial needs. It also describes the challenges of waste generation in mining and the need for responsible extraction practices to contribute to national and community development. It emphasizes the significance of the mining industry in India as a core part of the economy. The study delves into waste dump management, exploring the use of coir mats and grass seeds for aesthetic and sustainable plant growth. The adoption of Internet of Things (IoT) technology is proposed for real-time monitoring and management of vegetation in mining areas which includes the use of sensor technology, cloud computing and advanced analytics for ecological monitoring, particularly in forest environments. The study also addresses the need for real-time technology to enhance vegetation, to protect wildlife and to improve the livelihoods of tribal communities. © 2025, World Researchers Associations. All rights reserved.Item [No abstract available](Designing lanterns for the efficient lighting of mine roadways - An experimental approach) Mangalpady, M.; Rao, Y.V.; Karmakar, N.C.2005Item Design of haul road lighting system. Part II: Design based on optimal cost considerations(2006) Karmakar, N.C.; Mangalpady, M.; Rao, Y.V.; Yaragatti, U.R.The proper selection of lighting installations is very important for the provision of cost-effective lighting systems without compromising light quality. In this study a computer program was developed to evolve a cost-effective lighting system for haul roads in surface mines. This program is beneficial in assessing the viability of various lighting installations in order to achieve cost-effective solutions. Using the program, illumination design was studied for an 800 m long stretch of haul road. Nine different types of light sources were considered at mounting heights of 12 m and 16 m. The study shows that at a 12 m mounting height, 100 W high-pressure sodium vapour (HPSV) lamps offer the most cost-effective design, followed by 250 W HPSV lamps. In the case of 16 m pole heights the annual lighting cost is minimum for 150 W HPSV lamps, followed by 250 W HPSV lamps. This work also shows that optimum design based on energy consumption need not be the same as design based on optimum cost considerations as cost parameters may vary widely with location.Item Design of haul road lighting system. Part I: Design based on optimal energy considerations(2006) Karmakar, N.C.; Mangalpady, M.; Rao, Y.V.; Yaragatti, U.R.Electrical energy consumption is a major cost component of haul road lighting. Haul road lighting depends on many parameters such as type and wattage of sources, mounting height and tilt angle of light fixtures. In this study a computer model has been developed for optimum energy consumption of any haul road lighting system. Using the program, illumination design was studied for a stretch of 800m long haul road. Nine different types of light sources were considered for mounting heights of 12 and 16m. High-pressure sodium vapour (HPSV) lamps of 100W proved to be energy efficient at a 12m height whereas at 16m height, energy consumption was minimum for 150 W HPSV lamps. Thus the developed computer program proved to be successful in evaluating the performance of lighting designs from the point of view of energy consumption.Item Designing cost-effective lighting system for surface mine projects(2006) Mangalpady, M.; Karmakar, N.C.; Rao, Y.V.The objective of lighting in mines is to provide good illumination, which improves the safe and efficient working environment. The artificial lighting is very much essential for the sustained production, to meet the ever-growing demand of the mineral industry. Haul roads within the pit are one of the critical areas in surface mines where lighting installations are not permanent due to regular movement of faces. Though the initial investment for the lighting is very less compared to total project cost, the annual cost is considerably high against the running cost of the project. The proper selection of lamps, reflectors, mountings etc., for particular type of work is very important for energy efficient lighting system, without compromising with the quality of light. A computer model has been developed to evolve a cost effective lighting system for surface mine projects. This model helps in assessing viability of various light sources, so as to achieve energy effective solutions. Properly designed lighting system can prove to be a very cost effective investment for the mine owner.Item Applications of computer in mining industry with special regard to shovel-dumper productivity(2007) Mangalpady, M.; Murthy, Ch.S.N.; Pai, R.; Nand, R.Now-a-days computer is used in every field of engineering, including mining industry, at various stages in various capacities. One of the major problems in surface mining is material handling, which involves transportation of both ore and overburden. Most of the projects make use of shoveldumper system in spite of its huge capital investment and recurring costs. Hence a lot of mind and time has to be devoted before its procurement so as to optimize their number and maximize its utility. This paper addresses various optimization models available for productivity analysis of shovel-dumper fleet. Match factor method is one of the commonly used techniques to know the relative coverage which shovels are getting from truck fleet. Operations research techniques like queuing theory, integer programming, simulation and goal programming consider the probabilistic nature associated with the system. Even though many models are available for optimization and analyzing the productivity of shovel dumper system, further research and study is needed to devise a desirable technique for the same.Item Optimization of shovel-dumper system in surface mines by using match factor method(2009) Mangalpady, M.Computers have brought a revolution in almost every realm of life and become an indispensable part of human activities. Mining industry is no such exception. One of the major problems in surface mining is materials handling, which involves transportation of both ore and overburden. Most of the projects make use of shovel-dumper system due to its high degree of flexibility. This paper addresses application of match factor method for optimization of shovel-dumper fleet in surface mine projects. A surface iron ore mine was simulated using the computer model developed and the match factor was calculated for existing system. To make match factor unity compared to existing match factor of 0.43, it was found that the number of dumpers would have to be increased to 54, in addition to existing trucks. The model attempts to quantify the apparent balance between the number of loading devices and the number of haulage equipment needed.Item A comparison of limit equilibrium method of slope stability analysis with finite element modelling(2009) Mangalpady, M.Stability analysis of slopes susceptible to different types of failures can be performed with different techniques. The selection of an appropriate technique is, therefore, very important in a process of slope stability evaluation. In this paper, slopes of a large surface iron ore mine was analyzed by limit equilibrium method and by finite element modelling. GALENA software was used for analysis by limit equilibrium method and ANSYS for finite element modelling (FEM). Factor of safety (FOS) was calculated by both the methods and they are compared for their applicability. Based on the results obtained by the analysis, conclusions were drawn on the application of these methods. It was found that FEM analysis gives factor of safety value which is found to be lesser than the values determined by limit equilibrium method. This is because it considers more parameters and performs a detailed analysis of stress and strain conditions in the strata under consideration.Item Impact of pumping in open pit mining on groundwater flow: a case study(2010) Pal, K.; Vardhan, H.; Mangalpady, M.The groundwater flow behaviour was analysed during pre-monsoon, monsoon, and post-monsoon seasons. At first, the groundwater model was analysed in the steady state, and then the same was applied in the transient state to predict the spatio-temporal behaviour of groundwater in the region. Transient flow model was also developed to estimate the potential impact of pumping of groundwater due to mining activities. The results of the analysis show that the model is most sensitive to hydraulic conductivity and recharge parameters. Two scenarios are considered to predict aquifer responses under varied conditions of groundwater abstraction. © 2010 Inderscience Enterprises Ltd.Item Studies on iron tailings towards usage for paving blocks manufacture(2010) Mangalpady, M.; Sampath Kumar, N.N.Disposal of mill tailings is one of the major problems in mining industry. Investigations are being done all over the world to utilize tailings for useful purposes. The scope of this work is to study the utilization of iron ore tailings in manufacture of concrete paving blocks. Five reference mixes were prepared using cement, jelly dust and baby jelly. Ten paving blocks were prepared from each type of mix, out of which five specimens were cured for 7 days and five were cured for 28 days. By using sand and tailings as fine aggregates, two modified mixes were prepared by replacing jelly dust partly in reference mixes. Similar to reference mix, five mix ratios were made and ten paving blocks were prepared from each type of mixtures. From each set of paving blocks, five specimens were cured for 7 days and the other five specimens were cured for 28 days. Laboratory tests were conducted to assess water absorption and compressive strength of specimens, and graphs were plotted for their comparison among each type of respective mix ratios. In all the comparisons, compressive strength of tailing based mix was higher than the respective reference mix. Similar trend is shown by the graphs plotted for water absorption. © 2010 CAFET-INNOVA TECHNICAL SOCIETY. All rights reserved.