It was found that performing repetitive blasting work in the same area has a cumulative effect in the sense of the appearance of microcracks, cracks or failure of structural elements of the quarry (berms, steps, slopes, access roads) and those of buildings or elements. infrastructure.
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2022年12月20日 In this scientific article was studied the main methods for assessing the seismic effect generated during the blasting operations with explosives, from quarries on essential infrastructure ...
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2022年12月28日 Blasting is the preferred method of extracting rock in a quarry operation, the consequences of which can lead to environmental and property damage, and to injury or death of human and...
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2022年2月3日 Blasting induced vibration is one of the fundamental problems in the quarries and intense vibration can cause critical damage to environment nearby the quarries. Blasting...
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2022年12月20日 In the common situation, where in the area of operation are civilian or industrial targets, that need to be protected, it is important to monitor these effects by performing
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2022年1月31日 A new approach to determine the most efficient blast design was proposed, taking the peak particle velocity (PPV) as the main constraint, while including costs, production, granulometry, air blast and carbon footprint
More2022年12月20日 The assessment of the seismic effect produced by the blasting works in the Măgura Sârbi Brănișca Quarry MATEC Web of Conferences 389, 00065 (2024) The analysis
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Methodology of Seismic Blasting in Quarries. Julián Kondela. 2022, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Abstract. Blasting
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Blasting induced vibration is one of the fundamental problems in the quarries and intense vibration can cause critical damage to environment nearby the quarries. Blasting
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2022年2月14日 This research introduces a different modeling procedure to predict PPV resulting from blasting by developing a group method of data handling (GMDH) technique. Data
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low cost growth. The drilling (drilling) and blasting works are based on work technologies that require a multi-criteria design and verification (costs, duration, sustainability, safety of people and goods). Blasting inevitably leads to adverse effects such as terrestrial or water seismic waves,
More2022年12月28日 Blasting is the preferred method of extracting rock in a quarry operation, the consequences of which can lead to environmental and property damage, and to injury or death of human and...
More2022年12月20日 In this scientific article was studied the main methods for assessing the seismic effect generated during the blasting operations with explosives, from quarries on essential infrastructure ...
More2022年12月20日 In the common situation, where in the area of operation are civilian or industrial targets, that need to be protected, it is important to monitor these effects by performing
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ABSTRACT: In Belgium, many quarries are actively producing lime, cement and various crushed rocks. This study will focus on two types of deposits; these are limestone and porphyry. We
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Abstract. Blasting induced vibration is one of the fundamental problems in the quarries and intense vibration can cause critical damage to environment nearby the quarries. Blasting
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2023年9月26日 A unique validation tool developed on statistically designed response surface methodology (RSM) has been suggested for determining the rate of influence of blast design
More2022年12月20日 The assessment of the seismic effect produced by the blasting works in the Măgura Sârbi Brănișca Quarry MATEC Web of Conferences 389, 00065 (2024) The analysis
MoreBlasting induced vibration is one of the fundamental problems in the quarries and intense vibration can cause critical damage to environment nearby the quarries. Blasting
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2.4 Optimization of the Quarry Blasting Parameters 2.4.1Optimization Methodology The parameters were obtained using the Swedish technique developed by Langefors and Kilhstrom (1978). Here, the geometric design of the blasting pattern and the calculation of the charges are based on the uniaxial compressive strength of the rock.
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2019年8月28日 The initial production steps in a quarry operation – drilling and blasting – can significantly impact the productivity and costs of most downstream operations, including loading, hauling, crushing and screening, and product
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Methodology of the evaluation of seismic effects of blasting are base for evaluation of the effects of seismic blasting in quarries in Slovakia. 1. INTRODUCTION Mining of raw materials is currently in larger, but also smaller surface mining operations is carried out
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2022年2月14日 Blasting is a common technique for rock breakage in the numerous civil and mining engineering activities such as excavation, leveling, and tunneling. However, this technique has several environmental issues, such as ground vibration. More importantly, the peak particle velocity (PPV), as the main indicator of ground vibration, should be considered by
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Safety Precautions before Blasting. The blasting operations shall be carried out under the supervision of a responsible authorized blasting engineer. In case of blasting with dynamite, the position of all the boreholes to be drilled shall be marked in circles with white paint.
More2014年11月18日 Drilling and blasting is one of the first operations to be carried out in a quarry to gain the material for further processing. The vital process often starts with a detailed survey of the quarry face, which will enable the explosives engineer to design the blast and to plot where the shot holes should be drilled, enabling the task to be carried out safely and efficiently.
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2023年10月13日 Common blasting methods include shallow hole blasting, deep hole blasting, chamber blasting, multi-row hole differential blasting, springing blasting, etc. Home; ... and improves the utilization rate of quarry equipment; Improve the crushing quality of ore rock, ...
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The smooth blasting is also referred to as contour blasting or perimeter blasting. 4. Cushion Blasting. Cushion blasting is like smooth wall blasting, a single row of holes is drilled along the excavation line, loaded with light, well-distributed charges, and fired after the
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The quarry is in operation since 1927: at present, the exploitation is carried out completely underground by sub-level ... damage and breakage model has been developed to assist in the determination of critical burden conditions for ring blasting. The methodology involves the definition of breakage indices at a range of design burdens to ...
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Assessing a risk analysis methodology for rock blasting operations. Chiara Origliasso Jacopo Seccatore. 2012, Blasting in Mining - New Trends. See full ... The starting point for this kind of study should be a reliable statistic base of data about common quarry accidents with their magnitude and frequency. In this sense, great importance have ...
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