(PDF) Geology and Blasting Practices Impacting Fly Rock Accidents

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Construction Blasting and Alternative Non-Explosive …

lots. Rock is often encountered in deep excavations and this would require the use of rock blasting or alternative means to break up the rock, such as using chemicals or expansive cements, or other methods now available in Malaysia. Many of the areas slotted for development are already surrounded by high rise buildings and other amenities. It is

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Measurement and Prediction of Blast-Induced Flyrock

Flyrock is an unavoidable and unpredictable by-product of blasting rock, and because of the way in which flyrock is defined or characterized varies from jurisdiction to jurisdiction the incidence ...

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A Novel Approach for Blast-Induced Flyrock Prediction …

2. Flyrock and Effective Parameters. Flyrock is unwanted rock fragments thrown during bench blasting in mines and civil constructions [].Flyrock, which is propelled rock fragments by energy of explosive beyond the blast zone, is one of the undesirable environmental impacts of blasting operations [].In flyrock mechanism, there is an affective relationship among explosive …

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How to Carry out Controlled Blasting of Rocks? [PDF]

🕑 Reading time: 1 minute The main objectives of controlled blasting techniques are to minimize the overbreak and fracturing of rock beyond the designated boundary of excavation to achieve smooth post-blast surface and to control wild flyrock and ground vibration within permissible limits.

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Evaluation and prediction of flyrock resulting from blasting …

Flyrock may cause damage to structures and injury to human. Therefore, flyrock prediction is required to determine safe blasting zone. In this regard, 232 blasting operations …

Effect of Geological Structure on Flyrock Prediction in Construction

With uniform rock mass, excessive flyrock and air blast occur when C1 value is low and fragmentation becomes poor when C1 value is too high. C1 value for present site condition is 55. ... Yi CS (2016) Effect of geological structure and blasting practice in flyrock accident at Johor, Malaysia. Jurnal teknologi 78(8–6):15–21. Google Scholar

Flyrock in bench blasting: a comprehensive review

Flyrock is unwanted throw of rock fragments during bench blasting in mines and civil constructions. Perfunctory attempts by researchers to predict the flyrock range using mathematical, empirical and ANN based models do not address the issue in ... Oxford and IBH Publishing, New Delhi, pp 279–308 Blanchier A (2013) Quantification of the levels ...

Effects of Quarry Blasting Towards the Residential Area …

Flyrock are rocks ejected from the blast surface at high speed that may cause injuries and damages to surrounding environment, people, buildings and vehicles.

EFFECT OF GEOLOGICAL STRUCTURE AND BLASTING …

The main purpose of this study is to investigate the causes of fly rock accident based on geological structures and blasting practice such as blast design, pre inspection on …

Rock Blasting | Jaya Batu Sdn Bhd | Malaysia

Jaya Batu Sdn Bhd is a leading quarry and mining contractor in Malaysia. Our mission is to provide world-class services to our clients, such as drilling, blasting, loading, hauling and crushing operation. Our team of professionals has more than 20 years of experience in the industry and we are growing stronger than ever.

ORELM: A Novel Machine Learning Approach for Prediction of Flyrock …

Blast-induced flyrock is a hazardous and undesirable phenomenon that may occur in surface mines, especially when blasting takes place near residential areas. ... granite rock in Malaysia, located ...

Blasting-induced flyrock and ground vibration …

The damage induced by flyrock and ground vibration in rock blasting has been a serious ... Malaysia Arab J Geosci. demonstrated that in ascending order, blast ability index,

Effect of Geological Structure on Flyrock Prediction in …

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malaysia flyrock from rock blasting

Malaysia Flyrock From Rock Blasting. Home / Malaysia Flyrock From Rock Blasting . Flyrock Dangers Best Practices Mine Safety and Health. Flyrock the fragments of rock thrown and scattered during blasting is responsible for a large proportion of all blasting-related injuries and fatalities. Flyrock is a potential hazard anytime and anywhere ...

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malaysia flyrock from rock blasting – Grinding Mill China

Contour Blasting. Computer Calculations for Rock Blasting. Blast Performance Control. Flyrock. » More detailed! fly rock solution in mining – process crusher … South Africa, Zimbabwe, Australia, Germany, Ghana, USA, Philippines, Malaysia … Flyrock and lack of blast … fly rock, distance from blasting … » More detailed! Mine Drilling ...

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A Novel Combination of Tree-Based Modeling and Monte

Ye et al. (2021) used GP and RF models to predict blast-induced flyrock in six quarry mines in Malaysia, considering 262 blast instances, 20% of which were used for testing purposes, encompassing ...

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ROCK BLASTING and the COMMUNITY

ROCK BLASTING and the COMMUNITY The concern of damage from ground vibration, airblast, and flyrock from blasting are a major concern to both the nearby landowners and ODOT as the quarry owner. In most cases these concerns are based on misunderstandings and unsubstantiated fears resulting from a lack of information.

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An Analysis and Prevention of Flyrock Accidents in …

The Institute of Makers of Explosives (IME) has defi ned flyrock as th e rock propelled beyond the blast area by the force of an explosion (IME, 1997). Flyrock comes in different sizes and shapes, ranging in mass from few ounces to several tons. Persson et al. [1994] referenced flyrock weighing approximately three tons

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(PDF) Evaluation and prediction of flyrock resulting from blasting …

The blasting in the igneous rock intrusion area of the 21,914 working face is taken as an application example, and the damage degree of rock mass is reasonably evaluated by the box-counting ...

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Prediction of Flyrock in Boulder Blasting by Using Artificial Neural

Various factors causing flyrock have been identified such as geology, rock mass properties, drill and blast design, impact of previous blast, failure to identify uncontrollable factors, personal ...

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Effects of Quarry Blasting Towards the Residential Area …

the intended blasting area to the nearest residential or industrial area (Environmental Requirements: A Guide for Investors 2010). However, this limit has been on the stake when a tragic blast caused a flyrock incident to occur on the 19th of July 2013 at Masai quarry near Seri Alam, Johor, Malaysia. Flyrock are rocks ejected from the blast surface

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Effect of Geological Structure on Flyrock …

C1 = 20–40 (Hagan 1983 ). C1 = 25–40 (Dick et al. 1982 ). With uniform rock mass, excessive flyrock and air blast occur when C1 value is low and fragmentation becomes poor when C1 value is too high. ... Saad R, Yi CS …

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The effect of geological structure and powder factor in …

One of the undesirable phenomena in the blasting operation is flyrock, which is a propelled rock fragment by explosive energy beyond the blast area. A flyrock accident occurred …

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EFFECT OF GEOLOGICAL STRUCTURE AND BLASTING PRACTICE IN FLY ROCK

Most of the common accidents associated with blasting are due to fly rock. A fly rock accident had occurred on 15 July 2015 at a construction site at Johor, Malaysia. ... Mohamad, E. T., Armaghani, D. J., and Motaghedi, H. 2013. The Effect of Geological Structure and Powder Factor in Flyrock Accident, Masai, Johor, Malaysia. Electronic Journal ...

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Effect of geological structure and blasting practice in fly rock

Flyrock is produced by blasting when rock material is thrown beyond anticipated distance and likely to cause serious bodily injury, fatality, or damage to the property.

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Adaptive Weighted Multi-kernel Learning for Blast …

sidered as the main hazard of blasting operations, because it may cause fatal or non-fatal events (Bajpayee et al. 1999). The blast-induced yrock phenomenon is dened as the bro-ken rock particles boosted far from the free face after blast-ing operations (Yari et …

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ORELM: A Novel Machine Learning Approach for Prediction of Flyrock …

Thus, accurate prediction of flyrock is imperative. To this end, the present study developed two machine learning models, namely ELM and ORELM, to precisely predict flyrock at three quarries of granite rock in Malaysia. To the best of our knowledge, this is the first attempt to predict blast-induced flyrock through ORELM model.

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A Fuzzy Rule-Based Approach to Address Uncertainty in …

KEY WORDS: Flyrock, Risk assessment, Rock engineering system, Uncertainty. INTRODUCTION Blasting is a rock-explosive interaction system. After an explosion, explosive discharges gases that generate pressures to the order of a few GPa. What comes out of blasting operation mainly depends on properties of the utilized explosive, rock mass, blast

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Evaluation and prediction of flyrock resulting from …

Malaysia. Blasting parameters comprising maximum charge per delay and powder factor were prepared to pre- ... jecting the rock [5]. Flyrock accidents occur for several reasons, including