Flyrock is one of the most hazardous unwanted effects of rock blasting used in quarrying, mining and construction activities In contrast to the other unwanted effects like ground vibration and airblast, which generally cause structural damage

Excessive fly rock can be resulted due to geological conditions, blast design parameters, type of explosives and their distribution in the blasthole, blast …

Flyrock Dangers & Best Practices. 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 there is blasting. Reduce flyrock hazards by adhering to the safety tips and best practices below.

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 …

In this study, an attempt has been made to use Classification and Regression Trees (CART) technique to predict the fly-rock distance in boulder blasting. Multiple linear regression (MLR) technique has been used to compare the results obtained by the …

The purpose of this study is to investigate the causes of the flyrock accidents through evaluation of rock mass geological structures. The discontinuities present on the rock face were analyzed, to study how they affected the …

Flyrock Dangers & Best Practices. Flyrock – the fragments of rock thrown and scattered during blasting – is responsible for a large proportion of all blasting-related …

Fly-rock is an undesirable phenomenon that is generated by mine blasting. It is evaluated as the most dangerous phenomenon among the side effects of blasting. This study introduced a state-of-the-art technology of fly-rock prediction with high accuracy based on ANN models and their robust combination (i.e., EANNs).

The purpose of this study is to investigate the causes of the flyrock accidents through evaluation of rock mass geological structures. The discontinuities present on the …

Fly-rock is an undesirable phenomenon that is generated by mine blasting. It is evaluated as the most dangerous phenomenon among the side effects of blasting. This study …

Essentially, the effect of flyrock is similar to spraying an area with bullets from a machine gun. Complicating matters is the fact that separating pieces of rock from a rock face is …

This work attempts to estimate the amount of fly-rock in the Angoran mine in the Zanjan province (Iran) using the gene expression programming (GEP) predictive technique.

ling beyond blast area or the throw due to force of explosion is known as fly rock. As fly rock is a critical issue in mining and constructionindustry, hence it becomes more so important tolearn the causes for generation of flyrock and the mitig a-tion measures. This paper deals with causes of fly rock, hazards associated with flyrock and ...

limited ground vibration, airblast and flyrock, with no reports of rock throw greater than 50 metres. 4. FLYROCK OBSERVATIONS In general, the maximum flyrock throw was less than 50 metres. The summary of the flyrock throw observations is shown in Table 1. The maximum recorded throw from face burst, cratering or rifling of primary blasts is 95 ...

La generación de Fly Rocks en minería superficial tiene como causas las características propias del lugar ya sea geológicos, geomecánicos o geoestructurales, así como el diseño de voladura y distribución de las MEC y de los accesorios de voladura que se asocian obviamente con el buen desarrollo del secuenciamiento del minado.

Fly-rock produced in boulder blasting is a major safety concern due to the presence of 360 free-face which may result into excessive throw of the fragments radially up to 900 m distance causing ...

Make sure the holes are properly collared relative to the inclination of the face. Undercharging the front row holes will not protect you from flyrock, as you will get flyrock out of the vertical catering of the holes at the rear. Make sure the stemming length is greater than the hole burden.