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Blast Vibration Studies in Surface Mines ethesis

Blasting is very important process for mining operation and a lot of explosive is used for this purpose The blasting process and usage of explosives however remain a potential source of numerous human and environmental hazards Various studies indicate that fragmentation accounts for only 20-30% of the total amount of explosive energy used

Blast design and vibration control at an underground metal

A study was conducted to investigate the level of vibration generated from opencast blasting in the nearby underground coal mine openings and at a similar distance at the surface

Retrospective environmental assessment of blast vibration

Introduction In oil shale mines of North-East Estonia the depth of bedding is 20-60 m from the ground surface According to the previous investigations 1 in some cases the blast vibration may damage surface constructions

Ground Vibration â•fl Unique Case Studies in Indian Coal Mines

This concept was used and the study was conducted in the Indian surface coal mines and the detailed investigation was carried out and comparison on the ground vibration was made between hole to hole delay blasting and row blasting

Reduction of Blast Induced Ground Vibrations with Open

In order to study the reduction of ground vibrations due to blasting by a trench Venkatesh 2002 conducted field experiments in a surface coal mine with an annual production of 1 7 Mt of coal and 5 3 Mcu m of overburden

VIBRATIONS INDUCED BY CONSTRUCTION TRAFFIC A

VIBRATIONS INDUCED BY CONSTRUCTION TRAFFIC A HISTORIC CASE STUDY construction traffic etc have been an extension of blast vibration specifications Blasting forms an excellent foundation for construction vibrations as blasting has attracted considerable field 1980 Blast produced ground vibrations from surface mining were studied

FAQ Aggregate Blasting Illinois DNR

Why do mining companies blast Blasting is the most cost effective way to fracture rock Therefore blasting reduces the costs of consumer goodssuch as electricity sand gravel concrete aluminum copper and many other products manufactured from minedresources

NOISE & VIBRATION DATABASE Metalliferous Mines India

Metalliferous Mines India Mining Engineers Dairy Search this site ¨ Activity accounting technique for environmental noise assessment in mechanized surface mining ¨ Air blast and ground vibrations due to blasting at ¨ Blast Vibration studies in some coal and iron ore mines

Vibration Standards vibrating sieve separator

By far the most commonly used blasting vibration standard in the U S is the U S Bureau of Mines Office of Surface Mining OSM standard shown above It was developed in the early 1980 s to address shortcomings of earlier less stringent standards suggested by OSM

Blast Design and Assessment for Surface Mines and Quarries

The course focuses on drilling and blasting as it is applied in surface mines and quarries Design methodology for safe and efficient blasting is provided Monitoring and assessment to improve blast performance and reduce blast vibrations are discussed and examples of optimization programs are provided to illustrate the process

Journal of Vibration and Control Development of a fuzzy

Ground vibration is an integral part of the rock blasting process in surface mines which may cause severe damages to structures and plants in the nearby environment Therefore its prediction plays an important role in the minimization of

11 Objective of the Project To study the blast vibration

1 1 Objective of the Project To study the blast vibration caused due to surface mine blasting and prediction of safe explosive charge for protection of surface structures

Development of an empirical model for predicting the

blasting parameters on flyrock distance in surface mines Ebrahim Ghasemi a n Mehmet Sari b Mohammad Ataei a a Department of Mining Petroleum and Geophysics Engineering Shahrood University of Technology Daneshgah Blvd P O Box 3619995161 Shahrood Iran

Case Study Selection of Blasting Limits for Quarries and

The selection of appropriate blasting vibration limits for civil construction projects and quarry operations has a major influence on the overall cost duration and environmental impact of a project

PDF ENVIRONMENTAL IMPACT OF MINE BLASTING

The blast vibration impact on the ground surface objects is usually expected to be smaller in underground mining comparing with surface mining due to less charges

Geologic factors affecting vibration from surface mine

A resonant frequency of ground vibration was shown to be related to the thickness of the overburden in accord with a model proposed by gupta Since the overburden geology creating this resonant vibration cannot usually be changed two methods were tested to choose delays such that blast vibrations would destructively interfere

Ground Vibration and Airblast Limits for Blasting in Mines

The Guidelines for Ground Vibration and Airblast Limits for Blasting in Mines and The ground vibration* and airblast* limits recommended by the Guidelines have been set to minimise annoyance to people as a result of blasting on mine and quarry sites 3 3 1 Open Cuts and Surface Mines Blasting at open cut or surface mines and quarries

Shock and Vibration Hindawi Publishing Corporation

M S Sandhu and G K Pradhan Improvements in blasting—an Indian case study of surface coal mines in Proceedings of the International Conference on Reliability Production and Control in Coal Mines pp 136–142 September 1991

Experimental and numerical investigation of the effect of

In rock blasting the blast of the former delay always creates new free surfaces for the latter And the blast-generated free surfaces play a critical role in blasting vibration A quantitative assessment of the blast-generated free surfaces on blasting vibration was carried out through experimental and numerical studies Blasting vibration from the first and followed delays in the same row

Surface Mine Blasting Office of Surface Mining

Surface Mine Blasting Proceedings Bureau of Mines Technology Transfer Seminar Chicago IL April 15 1987 Blast Vibration Measurements Near Structures by David E Siskind and Recent research results of the surface mine blast ing program were presented at a seminar on April 15 1987 in Chicago IL

Feasibility of ICA in approximating ground vibration

Precise prediction of blast-induced ground vibration is an essential task to reduce the environmental effects in the surface mines civil and tunneling works This research investigates the potential of imperialist competitive algorithm ICA in approximating ground vibration as a result of blasting

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