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blast vibration studies in surface mines

Simulation of blast-induced ground vibrations using a

This study explores the limitations of conventional statistics and the widely accepted parameters controlling blast-induced ground vibrations. The velocity vector Blast-induced vibration parameters, e.g. PPV, depend upon various factors like scaled distance, vibration frequency, rock characteristics (type, unit weight, layering, Determination of blast-induced ground vibration equations for

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(PDF) Modelling the effect of blast-induced

In summary, studies on blast vibration in slope areas can be mainly conducted with three analysis methods, namely, field monitoring, theoretical analysis, and numerical simulation.In this project blast vibration study is done and it is interpreted for its effects in reference to the standards set by DGMS. The study has been done with the help of geophones and Blast Vibration Studies in Surface Mines Semantic Scholar

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Assessing Ground Vibration Caused by Rock Blasting in Surface Mines

Ground vibration induced by rock blasting is an unavoidable effect that may generate severe damages to structures and living communities. Peak particle velocity Long-hole blasting in mines is likely to cause strong vibration of surficial infrastructure, greatly damage the rock mass surrounding goaf near explosion center, and possibly induce blast A Method for Multihole Blasting Seismic Wave

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Modelling the effects of ground vibrations on the surface

In this paper, an attempt has been made to predict the blast-induced ground vibration on the surface due to underground blasting using explicit dynamic When these vibrations create resonance vibrations, the amplitude of the blast vibration increases, which results in damaging the surface structures/features Optimization of blasting parameters in opencast mine with

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Assessment of Blasting-Induced Ground Vibration

In an open-pit mine slope, rock mass has multiple joint structures and blasting operations have an obvious influence on its stability. Therefore, accurately predicting the blasting vibration is necessary to This is to certify that the thesis entitled, ―Blast Vibration Studies in Surface Mines‖ submitted by Mr. Badal Kumar Kujur in partial fulfilment of the requirement for the award of Bachelor of Technology Degree in Mining Engineering at the National Institute of Technology, Rourkela (Deemed University) is an authentic work carried out by BLAST VIBRATION STUDIES IN SURFACE MINES

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Prediction of Ground Vibration Induced Due to Single Hole Blast

There are several methods (empirical, statistical, and machine learning tools) to calculate blast-induced ground vibration. Still, due to complications in the blasting procedure, under varying blasting loads and strata conditions, it is not easy to predict and simulate blast vibration precisely. Therefore, a study was conducted to simulate the field Long-hole blasting in mines is likely to cause strong vibration of surficial infrastructure, greatly damage the rock mass surrounding goaf near explosion center, and possibly induce blast A Method for Multihole Blasting Seismic Wave

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Frontiers Intelligent ground vibration prediction in surface mines

Ground vibration induced by blasting operations is considered one of the most common environmental effects of mining projects. A strong ground vibration can destroy buildings and structures, hence its prediction and minimization are of high importance. The aim of this study is to estimate the ground vibration through a hybrid soft Measuring the blast-induced ground vibration at blasting sites is very important, to plan and avoid adverse effects of blasting in terms of the peak particle velocity (PPV). However, the measurement of PPV often requires time, cost, and logistic commitment, which may not be economical for small-scale mining operations. This has Predicting the peak particle velocity from rock blasting

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Experimental and Numerical Investigation of Blast-Induced Vibration

To monitor the vibration signals, three-component seismic instruments were placed in 6 station points at distances ranging between 10 and 100 m, shown in Figure 3.In the present study, PPV is adopted to assess the blast-induced vibration and possible damage [28–30].The scaled distance (SD) is defined as where is the distance between According to various standards, the PPV is the most famous representative for estimating and evaluating blast-induced ground vibration in surface mines 1,16,17.Prediction of ground vibration due to mine blasting in a surface

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Minimization of Blast-Induced Hazards and Efficient

Stemming is an essential blast design parameter, and inadequate stemming length/materials impact directly, among others, rock fragmentation, backbreak, flyrock, and ground vibration. This study evaluated the impact of various stemming materials such as drill cuttings (fine cuttings), angular aggregates (3–7 mm size) and synthetic Rampura Agucha open-pit lead zinc mine is producing 5.7 Mt/a of ore and has started its underground part which is slated to produce initially 2–2.4 Mt/a and 4.5 Mt/a in near future. The impact of 86 open-pit blasts has been documented in the underground openings and 258 blast vibration data has been recorded.Blast vibration effects in an underground mine caused by

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Modelling the effects of ground vibrations on the surface

Kumar S, Choudhary BS (2019) Prediction of blast-induced ground vibration by ANN, UTY and CMRI formulae for the safety of the structures near surface coal mines. J Mines Met Fuels 67:351–356. Google Scholar Kumar S, Mishra AK, Choudhary BS (2021) Prediction of the back break in blasting using random decision This study was conducted in two different mines, and 56 blast vibration data were collected from overburden benches. During trial blasts, it was confirmed that the study benches had similar geology.(PDF) Evaluation of parameters affected on the

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Statistical modelling of the blast design parameters

Mining and construction sites experience ecological consequences, such as ground vibrations and fly rock, owing to blasting activities. Apart from the traditional techniques, it is critical to determine the design parameters of a blast which influence the ground vibrations, created by the blasting activities, and to mitigate the effects of ground Vibrations induced due to blasting in mines may damage the nearby houses and disturb the habitants. The monitoring, prediction, and control of vibration in terms of peak particle velocity (PPV) has been an area of concern for blasting engineers since many decades. The frequency of vibration has a very critical role to play in Frequency channeling: a concept to increase the frequency

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Effect of engineered rock properties on blast-induced ground vibration

One of the major variables that affect blasting vibration is geological character along with explosive properties. So, the consideration of geological properties for prediction of blast parameter is the area of concern. In the present paper, state of the art review is done regarding the effects of rock properties on blasting vibration.From a mining production perspective, ground vibrations may damage the stability of benches and slopes and may generate a number of back breaks in open-pit mines (Haghnejad et al. 2018).Peak particle velocity prediction using support vector machines

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Simultaneous investigation of blast induced ground vibration

The significance of studying, monitoring and predicting blast induced vibration and noise level in mining and civil activities is justified in the capability of imposing damages, sense of uncertainty due to negative psychological impacts on involved personnel and also judicial complaints of local inhabitants in the nearby area. This paper presents This study focused mainly on the dynamic properties of ore rock, which was obtained from an underground iron ore mine. SHPB tests, DIC, and numerical simulation were employed. The results provide a basis for engineering applications such as blast vibration in ore rock in underground mines. The main findings of this study are Dynamic mechanical properties of an ore rock with varying

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Evaluation of ground vibrations and the effect of air blast in

In mining and civil engineering, blasting is considered as the most economical method used for fragmenting rock masses. Nonetheless, only 20–30% of the used energy is devoted to rock fragmenting and displacing, while the remainder is wasted in the form of ground vibration, air blast, noise, and fly-rocks (Uysal et al. 2008).Both where PPV is the peak particle velocity in millimeters per second, K and n are site constants, D is the distance of the point of interest for vibration monitoring from the blast site (m), and Q max is the maximum explosives weight per delay (kg) However, in recent field studies, it has been realized that there is a significant impact of the total Blast vibration dependence on total explosives weight in

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Blast Protection Techniques: A Review SpringerLink

The studies presented in the literature review are broadly categorized under two sections namely studies on air and surface blast loading and studies on underground mine blast loading. Stagg MS, Kopp JW, Dowding CH (1980) Structure response and damage produced by ground vibration from surface mine blasting, 1–4. US Department

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