Ports - a Case Study
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ABSTRACTS OF PAPERS PUBLISHED TITLE Underwater Drilling and Blasting For Hard Rock Dredging In Indian Ports - A Case Study AUTHOR(S) G.R. TRIPATHY AND R.R. SHIRKE PUBLISHED IN Aquatic Procedia, Vol. 4 (2015) PP 248-255 ABSTRACT Underwater drilling and blasting used for rock dredging is associated with several unwanted effects having potential to cause damage to surrounding structures and environment. Though all these ill effects can’t be completely eliminated, using controlled blast they can be minimized to acceptable levels. Underwater drilling and blasting was used for about 25,000 m3 of hard rock dredging during construction of a Second Liquid Chemical Berth by Mumbai Port Trust (MbP Mumbai. The rock formation at the site mainly consists of basalt with compressive strengths varying between 16.04 MPa and 37.96 MPa. The average depth of required excavation was about 2 m. The Elephanta Caves, a World Heritage Site is located about 2.6 km from the proposed site. It was apprehended that ground vibrations resulted from rock blasting may endanger the safety of Elephanta Caves as well as other structures located nearby. Controlled blasting was used to ensure safety of various structures and its efficacy was established by monitoring of blast vibrations on different structures during actual blasting. The use of small quantity of explosives confined in blast holes, n-electrical delay detonators and initiating each hole with a separate delay, helps in minimizing the ground vibration effects on surrounding structures and complete the rock dredging safely in time. TITLE Effect of mechanical vibrations in the range of earthquake frequencies on hemoglobin protein AUTHOR(S) Vijay Ghodake, Sarika Hinge and Gauri Kulkarni PUBLISHED IN Journal of Proteins and Proteomics, Vol. 6, No. 1, February 2015 ABSTRACT Mechanical vibrations in the range of earthquake frequencies up to 50 Hz are more detrimental for human system. Hemoglobin plays a very important role in red blood cell for blood purification. Hemoglobin carries oxygen from the respiratory organs to the rest of the body. Electrodynamic shaker from M/s Spectral Dynamics, USA, was used for generation of sinusoidal mechanical vibration in the frequency range of 10 - 50 Hz, and displacement of 10 mm. Vibration Test System consists of Shaker, Power Amplifier, Control System including Data analysis Software, accelerometers, charge amplifier and cooling 1 blower. In the present study, the effect of mechanical vibrations on hemoglobin proteins were studied on the basis of spectroscopy i.e. ultra violet and visible spectral range 200 – 800 nm absorption spectra and Fourier Transform Infra Red (FTIR) spectroscopy with spectral range 400 – 4000 cm-1 . Surface tension of protein solution was measured by using pendent drop method. Mechanically vibrated hemoglobin samples were compared to non vibrated hemoglobin sample. UV-Visible absorption spectroscopy shows that hemoglobin exhibits strong absorption peak in the Soret band region. Hemoglobin protein was mechanically vibrated at different frequencies ranging from 10 Hz to 50 Hz with amplitude of 10 mm for exposure 10 minute time. Vibrated and untreated hemoglobin proteins were on the basis of ultra violet - visible spectroscopy, FTIR spectroscopy and surface tension. TITLE Delineating coal seams and establishing water tightness by electrical resistivity imaging AUTHOR(S) Ch. Subba Rao*, M. Majumder, J. Roy, Scientists ‘B’, M. S. Chaudhari , Scientist ‘C and R. S. Ramteke, Additional Director PUBLISHED Current Science, Vol. 108, No. 3, 10 February 2015 pp:427-434 IN ABSTRACT In the present study, continuity of coal seams was established in the area adjacent to the existing open cast coal mine at Talabira, Odisha situated close to Hirakud reservoir. Water tightness of the strata in the zone between the reservoir and the mine needs to be verified to prevent inundation by subterranean seepage and ensure safety. ulti electrode resistivity imaging technique was used to establish continuity of coal seams and verify water tightness. From the studies conducted in and around the mine along 13 profiles, coal seams with relatively high resistivity ranging from 500 to 1500 Ohm-m at depths varying from 10 to 31 m were delineated. The intervening strata between the reservoir and the open cast mine was found to be fairly tight without any significant zone susceptible to seepage. Keywords: Coal seam, electrical resistivity imaging, open cast mine, reservoir, water tightness. 2 Diversion of Nala Passing through the Coal Blocks- Hydrologic and Hydraulic Title: Prerequisites S. Naveed Ali, Sc.’B” Authors: P. Vijayagopal, Sc.’B” Division: SWH Abha Garg, RA International Journal of Journal: Engineering Innovation & Volume: 4 Research Volume 4 Issue 1, Year: 2015 Month: Jan.-Feb. 2015 ISSN: 2277-5668 Coal reserves in India are one of the largest in the world. Exploiting this vast potential is necessary for the economic growth of the country. Many omes necessary to divert natural streams for mining the coal available beneath them. Keeping the hydrologic regime of the upstream and downstream of the mining area is a prerequisite for the environmental protection in addition to many other issues. This paper describes the hydrologic and hydraulic prerequisites of diversion of Nalas with a case study of Jitpur coal block in Godda district of Jharkhand. KewariNala is flowing through this mine area, which needs to be diverted. Ali of the Nala diversion was proposed to be along the western boundary of the c block. Simulations of the Abstract: flow in KewariNala were carried out under existing as as after diversion of Nala using one-dimensional mathematical model, HEC RAS under steady state flow conditions. Based on the analysis of Meteorological data, hydrological data, topographical data and result of model studies it was ound that the design parameters of proposed diversion plan of KewariNala in Jitpur coal block is feasible. The diversion channel has been designed so that the water regime under existing and diverted condition for the common reach of KewariNala is undisturbed. Thus, design for diversion of KewariNala along the western boundary of the coal block has been suggested with due care on hydraulic aspects. TITLE Effect of low frequency mechanical vibrations on human blood (in vitro) AUTHOR(S) V. K. GHODAKE AND G. R. KULKARNI PUBLISHED IN Souvenir, Two Day State level Seminar on “Emerging Trends in Physics (ETP - 2015)” February 2015 ABSTRACT The activities like excessive power house machine vibrations, uncontrolled blasting, marathons, karate, operating a dumper truck, 3 hand transmitted vibration from powered tools like dri ling machines, riding in a bus or driving a truck etc. cause excessive mechanical stress in circulation of human body. Due to excessive mechanical stress on human body, red blood cells can be damaged and are at risk of developing disorders. When a human body or a part of the body is exposed to excessive mechanical vibrations fragmentation of red blood cells (RBC) or hemolysis may occurs. Damaged RBC causes change in blood viscosity/ surface tension and thus blood circulation. In the present study, the effect of mechanical vibrations on man whole blood (in vitro) were studied on the basis of Biochemical study, hemolysis using single wavelength of 540 nm absorption, chemical bond studies by using Fourier Transform Infra Red (FTIR) spectroscopy with spectral range 400 – 4000 cm-1, morphological study by using Scanning Electron Microscopy (SEM). Mechanically vibrated human whole blood samples were compared to non vibrated whole blood sample. Electrodynamic shaker from M/s Spectral Dynamics, USA, was used for generation of sinusoidal mechanical ibration in the frequency range of 10 - 50 Hz, and displacement of 10 mm. Vibration Test System consists of Shaker, Power Amplifier, Control System including Data analysis Software, accelerometers, charge amplifier and cooling blower. Human whole blood was mechanically vibrated at different frequencies ranging from 10 Hz to 50 Hz with amplitude of 10 mm for exposure 10 minute time. Vibrated and untreated ole blood were compared on the basis of Biochemical study, hemolysis, Fourier Transform Infra Red (FTIR) spectroscopy with spectral range 400 – 4000 cm-1 and morphological study using SEM. TITLE Ultrasonic Pulse Velocity Measurement for Evaluation of In-situ Quality of Concrete - A Case Study AUTHOR(S) Ghodake V. K., Varshikar N. B., Shirke R. R. and Tripathy G. R. PUBLISHED IN Proceeding of “National Level Conference on Recent Trends in Science and Engineering (NCRTSC-2014)” Organized by Dr. D. Y. Patil School of Engineering & Technology, Pune, India during 12th - 13th December 2014 ABSTRACT Non-destructive testing by elastic wave transmission technique is a useful tool for assessing the in-situ quality of concrete in large structures like, dams, foundations of thermal power station, tunnel linings, etc. Elastic waves with frequencies more than 20 KHz are 4 termed as “ultrasonic” waves and commonly used for testing of concrete structures. In this method of testing, pair of piezoelectric transducers is preferably placed at the opposite faces of the test structures. In one of the transducer (transmitter) ultrasonic waves are generated and the pulse is received by other transducer (receiver) after travelling a known distance through the concrete. The ime between the onset and the received pulses is measured precisely by electronic instrument and used for estimation of velocity. The in-situ quality of concrete