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May 20, 2013#0183;#32;In order to ensure that the environmental impact from blasting on neighbors and businesses is not negative, instruments called seismographs are set in the field to record the intensity of energy that is felt wherever the instrument is located. Using data from these seismographs, or seismometers, we have learned much about the effects from blasting.
Controlling the Adverse Effects of Blasting This module addresses the control of offsite impacts that result from blasting, namely: vibrations, airblast, and flyrock. Much of the information in the module is derived from the Surface Mining Control and Reclamation Act of 1977 (SMCRA). The performance standards apply to all
Dec 01, 2008#0183;#32;1. Introduction. Back break is an undesirable consequence of inappropriate blast design. Back break can be defined as broken rocks beyond the limits of the rear row of holes in a blast pattern. This phenomenon can cause rock fallings, mine wall instability, improper fragmentation, etc., and consequently increase the total cost of a mining operation.
Investigating the Effect of Dolomite Exploitation on Groundwater Condition of Ikpeshi, Akoko Edo, Edo State, Nigeria Saliu 1. 2and Komolafe K. Abstract . The various usefulness of dolomite and its abundance in Ikpeshi has given rise to massive expoitation of it in the community and its environs. The groundwater condition of Ikpeshi
This research investigates the effects of drilling and charging specifications on blasting cost in three selected rocks granite, limestone and marble in Nigeria. In order to achieve this, the three rock types were characterized to determine some rock properties uniaxial compressive strength, point load strength, Schmidt hardness and unit weight.
trends to evaluate changes in blast design parameters [5]. The optimization of the final rock fragment/product size on a cost The Effect of Drilling and Charging Design on Cost of Blasting in Some Selected Rocks in Nigeria Saliu M. A., Ajaka, Ohere S. A.
Mining adversely affects the environment by inducing loss of biodiversity, soil erosion, and contamination of surface water, groundwater, and soil. Mining can also trigger the formation of sinkholes. The leakage of chemicals from mining sites can also have detrimental effects on the health of the population living at or around the mining site.
1,2 Department of Mining Engineering, Federal University of Technology, Akure, Ondo, State, Nigeria Email: saliuma4u, abiodunismail18 Abstract The research investigates the effect of initiation device on environmental effect of blasting. The objectives of the research were achieved through field measurement and data collection.
Jul 01, 2009#0183;#32;Ground vibrations, air blasts and flying rocks are side effects resulting from an improperly designed blasting operation. Many studies have been carried out over the years into ground vibration control in under ground and surface mining operations.
Nigeria is a country endowed with abundant mineral resources. These mineral resources have helped in the growth and development of the country. But as beneficial as this exploitation of mineral resources has brought to Nigeria, it has likewise caused some environmental degradation in the country, especially in those quarrying areas.
Mr Femi Akingbade, a former Director in the Nigeria Mining Corporation (NMC), on Wednesday in Abuja warned that people living around quarries risked health hazards and damage to property.
In recent times Okpella has experienced an increase in limestone mining activities to meet the increasing need of cement for constructions. Blasting has been the most efficient, economic and convenient method of breaking insitu hard rocks. Only a portion of the energy dissipated by the explosives used in blasting is consumed in breaking the
#0183;#32;Nigerias abundant solid minerals constitute some of the largest known deposits in recent years under different categories. With the activities in the sector characterized by production and a growing environmental decline often overlooked. This research uses a mix scale approach of descriptive statistics and GIS methodology in analyzing the ecological impacts of mining in Nigeria.
Effects of Controllable Blasting Variables on Number of Boulders Generated after Blasting in Ratcon and NSCE Quarries, Ibadan, Oyo State, Nigeria March 2013 International Journal of Engineering
Blasting operations cause several adverse environmental effects. with the development of new explosives systems and initiation devices, blast design and execution techniques, the blasting process has now become more efficient and safer than before. use of software tools for blast design, support in execution, blast monitoring and analysis makes it possible that damages and dangers from
Blasting in a mine generally occurs in two phases, primary blasting and secondary blasting. Blasting Primary Blasting is the activity in which insitu rock is broken in both development and stoping and in surface mining by drilling holes in the rock, charging them with explosives and detonating the holes in a planned sequence.
Printed in Nigeria. Nigerian Mining Sector Brief | 3. Section. Page . 1erview of the Nigerian Mining Sector Ov 05 2 Mineral Endowment 08. Coal 08 Bit 09 Limestone 09 IronOre 09 B 09 L 11 Gold 11. 3al and Regulatory Framework Leg 12
Feb 26, 2020#0183;#32;Nigeria is a country endowed with abundant mineral resources. These mineral resources have helped in the growth and development of the country. But as beneficial as this exploitation of mineral resources has brought to Nigeria, it has likewise caused some environmental degradation in the country, especially in those quarrying areas.
Investigating Vibration Effect from Blasting Using Delay Initiation and Square Drill Pattern in Limestone Quarry in Okpella, Edo State, Nigeria Authors: 1Christopher O. Aigbogun; 2 Taiwo Monday Edo 1 Department of Physics, University of Benin, Benin, Nigeria (caigbogun)
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