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What is your observation of this blast?
The blast looks like it have a good fragmentation and displacement. The walls have been smoothly blasted but the left wall was ruined and destroyed the road. Small quantity of explosive shows a grey smoke which means not a full combustion.
The blast looks like it have a good fragmentation and displacement. The walls have been smoothly blasted but the left wall was ruined and destroyed the road. Small quantity of explosive shows a grey smoke which means not a full combustion.
See lessSeabed Mining
Hi, I have done some research about deep sea mining and its regulations. Here is the link to the results that can be beneficial to you. Details are also below. A healthy deep ocean is essential for the well-being of both humans and the environment. It serves as a carbon sink, storing large amount ofRead more
Hi,
I have done some research about deep sea mining and its regulations. Here is the link to the results that can be beneficial to you. Details are also below.
A healthy deep ocean is essential for the well-being of both humans and the environment. It serves as a carbon sink, storing large amount of human-generated carbon dioxide, and is home to a vast array of unique and diverse species, many of which have yet to be identified. Currently, it is one of the few places on Earth largely free from human pressure, but that could soon change with the commencement of a new extractive industry known as deep-seabed mining (DSM).
In international waters, the International Seabed Authority (ISA) governs DSM, as required by the United Nations Convention on the Law of the Sea (UNCLOS), regulating any mining activities and overseeing the effective protection of the marine environment from harmful effects. The ISA is also tasked with ensuring that DSM in the deep sea is undertaken in accordance with the common heritage of humankind principle, including equitable sharing of financial benefits.
Thus far, the ISA has created and adopted regulations to govern exploration, awarded 31 exploration contracts and is in the process of negotiating exploitation regulations that would govern any future commercial mining activities.
However, in 2021, the Republic of Nauru notified the ISA of its intent to sponsor a DSM application by a private mining company, triggering a time-limited provision in UNCLOS that requires the ISA to either complete development of the regulations to enable DSM in two years or consider mining proposals without internationally agreed-upon regulations in place. As a result, the prospects of DSM commencing soon—in the absence of sufficiently precautionary regulations—has become a distinct reality.
Since the triggering of this provision, more than 20 member States of the ISA have publicly called for a moratorium, precautionary pause or complete ban on DSM in the international seabed, with a growing number of countries indicating that they will not approve of any mining without a completed and adopted regulatory framework. Proponents of DSM, on the other hand, have questioned the very legality of such a pause or moratorium and whether it is consistent with UNCLOS.
Link to the content and author:
https://www.pewtrusts.org/en/research-and-analysis/fact-sheets/2023/06/seabed-mining-moratorium-is-legally-required-by-un-treaty-legal-experts-find#:~:text=In%20international%20waters%2C%20the%20International,marine%20environment%20from%20harmful%20effects.
See lessBlast Exclusion Determination (Machines and Personnel
Hi, From my knowledge the important factor to consider is what we call the PPV. According to the paper below (as per the link). As a critical parameter to measure the blasting intensity, the peak particle velocity (PPV) of vibration induced by blasting, should be accurately predicted, and can providRead more
Hi,
From my knowledge the important factor to consider is what we call the PPV. According to the paper below (as per the link). As a critical parameter to measure the blasting intensity, the peak particle velocity (PPV) of vibration induced by blasting, should be accurately predicted, and can provide a useful guideline for the design of blasting parameters and the evaluation of the damage. And there are ranges that are set by regulations that should not be exceeded to prevent any damage to the people and environment.
The other factor to consider is fly rocks. As this can cause damage to equipment and even to people, hence it is important to ensure that there are no equipment or people near the blast. And lastly, experience also comes into play after conducting several blasts and exposure to the blast. Blasting near a town may require a different design parameter compared to blasting further away from a town.
Link to the article about PPV.
https://www.sciencedirect.com/science/article/pii/S2467967422000484#:~:text=As%20a%20critical%20parameter%20to,the%20evaluation%20of%20the%20damage.
See lessWhat is Climate Smart Mining?
Climate Smart Mining does not only focus upon the recovery of minerals, BUT pays extra attention to minimizing the damage to the environment, conserving resources such as water and fuel, and ensuring good relations with neighbors. Sustainability is a three-legged stool = social, financial and enviRead more
Climate Smart Mining does not only focus upon the recovery of minerals, BUT pays extra attention to minimizing the damage to the environment, conserving resources such as water and fuel, and ensuring good relations with neighbors. Sustainability is a three-legged stool = social, financial and environmental sustainability. Even mines with the best intentions to produce metals for a green economy can fail horribly if they violate social norms (tribal rights) and cause surface & groundwater depletion. Recent failures of mines to be permitted or started (Rosemont, Pebble, Twin Metals etc.) demonstrate that adherence to the principles of sustainability are key to successful mining. Regards, Charles R. Stack, MPH, BCES, VP of NeoChloris Inc., Board Certified Environmental Scientist – Sustainability Science.
See lessWhat is Ventsim software used for in the mining industry?
how can one get Ventism and are they any courses for it that maybe come with a certificate?
how can one get Ventism and are they any courses for it that maybe come with a certificate?
See lessWhat is world’s first mechanized development charging system for underground mining?
Great initiative 👏
Great initiative 👏
See lessUnderground reef drives development
Nana, Reef drive is a drive or small tunnel going trough the reef or the ore. Ore drive is also a tunnel going trough the ore. Reef drive is usually talked about in narrow vein mining and ore drive is basically for bigger ore body like for long hole stoping. Thanks,
Nana,
Reef drive is usually talked about in narrow vein mining and ore drive is basically for bigger ore body like for long hole stoping.
Thanks,
See less