If desired fragmentation is to be obtained, the controllable factors (blast geometry and explosive properties) must be sufficiently designed to match the non-controllable ones (geological factors and legislative constraints). This study investigates the influence of blast design parameters on rock fragmentation.
This paper describes the result of a systematic study on the impact of blast design parameters on rock fragmentation at two mines in India. Both the mines use draglines and shovel-dumper combination for removal of overburden.
The main objectives of controlled blasting techniques are to minimize the overbreak and fracturing of rock beyond the designated boundary of …
The selection of appropriate blasting vibration limits for civil construction projects and quarry operations has a major influence on a project?s overall cost, duration, and environmental impact. In some …
This past year it has been customized for simulations of bench blasting in coat mines and rock quarriesmore ... One of the more common tasks in blast management is the adjustment of shot geometry, explosive energy, and shot timing parameters to achieve changes in blast outcomes and costs.
Blasting at quarries and opencast coal sites can have adverse impacts that extend beyond the site boundary. Potential environmental impacts of blasting at surface mineral workings include ground vibration, air overpressure, noise, dust and flyrock.
This paper aims to study the effect of geological condition on fragmentation produced by blasting in a marble quarry in Simpang Pulai, Perak, Malaysia; as the condition of the in-situ rock mass...
The drill and blast technique have been widely used recently due to demand for natural building materials like rock aggregates. However, the intensity of blasting effects has been questioned on its validity towards the nearby residential areas. In this study, the blasting effects from Quarry A and B has been assessed based on constant location of the …
Therefore, the ability to make accurate predictions of the blast-induced flyrock is essential to reduce the environmental problems. This paper aimed to develop a precise and applicable model based on regression tree (RT) to predict blast-produced flyrock distance in Ulu Tiram quarry, Malaysia.
McCallum Rock Drilling is the West's premier drilling and blasting company. Learn more on our "Quarry Drilling & Blasting" page.
Although the local surrounding geology and rock mechanics have great influence on vibrations as uncontrollable parameter, the charge weight per delay, delay period, geometric parameters of the blasts were changed to solve the existing vibration problem in the studied quarry.
Control blasting refers to the control use of explosives and blasting accessories in carefully spaced and aligned drill holes to produce a free surface or shear plane in the …
The said ML models were trained and tested based on a database comprising of 102 datasets collected from a quarry site in Malaysia. In the modeling of ML techniques, six input parameters were considered: burden to spacing ratio, maximum charge per delay, stemming, distance from the blasting-face, powder factor and hole depth.
For this purpose, blasting parameters as well as ground vibrations of 109 blasting operations were measured in ISB granite quarry, Johor, Malaysia. Moreover, an empirical equation was also proposed based on the measured data. Several AI-based models were trained and tested using the measured data to determine the optimum …
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 geological structures, identifying danger zone due to blasting and communication and evacuation of personnel before blast.
Blast design parameters are controllable parameters that allow explosive engineers to perform efficient and safe blasting in a quarry. The parameters involved are blast …
In this regard, a database including several controllable blasting parameters was collected from 76 blasting events in three quarry sites, Malaysia. In modeling procedures, five effective parameters on the flyrock including burden, spacing, stemming, powder factor and rock density were used as input parameters, while flyrock …
This paper aims to study the effect of geological condition on fragmentation produced by blasting in a marble quarry in Simpang Pulai, Perak, Malaysia; as the condition of the in-situ rock mass is ...
Sep 2009. Irfan Celal Engin. Blasting is the most productive excavation method in hard rock mining. In quarries, to remove the mother rock from in-situ and crush into the desired size is realized ...
In this study, the blasting effects from Quarry A and B has been assessed based on constant location of the residential areas (Taman Pulai Hijauan and Taman Bandar Baru Kangkar Pulai, respectively ...
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.
East Rock Sdn. Bhd. ("ERSB") is an investment holding company with seven business subsidiaries located throughout the state of Pahang. The company's first quarry was established in Lanchang, Teh in 2014.
To cater for the demands for various rock aggregates for the numerous engineering construction projects in Malaysia, such as dams, highways, housing developments, etc., the location of suitable quarry sites at or in the immediate vicinities of the project sites has been the responsibility and constant duty of the engineering geologist. This paper …
Rock blasting is the controlled use of explosives to excavate or remove rock. It is a technique used most often in mining and civil engineering such as dam construction, …
This study investigates the influence of blast design parameters on rock fragmentation. Six different blast designs were studied and analyzed. Rock samples were obtained …
In this study, the risk level of flyrock was determined using 11 independent parameters, and the proposed FRES was capable of calculating the interactions among these parameters. According to the results, the overall risk of flyrock in the studied case (Ulu Tiram quarry, located in Malaysia) was medium to high.
This paper presents a predictive model based on gene expression programming (GEP) for estimating ground vibration produced by blasting operations conducted in a granite quarry, Malaysia. To achieve this aim, a total number of 102 blasting operations were investigated and relevant blasting parameters were measured.
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