Because there is no roof to support in an open cut whereas in underground mining there may be a very large overburden load leading to very high stresses in the tunnel roof. This may require support and there is the potential for a roof collapse to occur.
Uranium mining can be either by open pit mining or by underground mining.
In Situ Leaching method is more commonly used worldwide for uranium mining compared to conventional mining. This method is more cost-effective and environmentally friendly as it does not require as much ground disturbance as conventional mining methods.
Open cast mining is generally considered safer than underground mining but there are still some dangers such as: 1)Because opencast mining is done in the form of ledges one can easily fall off one of these ledges which can can meters high. 2)Because open pit mining is done using explosives it can cause injury due to flying pieces of rock and other debris. 3)Open cast mining needs a lot of space for digging and it affects the environment in many bad ways.Animals loose their homes,deforestation occurs,people have to be relocated to other places because of pollution hazards. 4)The use of explosives may also cause other accidents to happen.
Strip, surface or open cast mining.
I was searching for an answer for my science homework, when I stumbled upon this answer. This was very incorrect, and I would like to fix it for you. Here is the correct answer: Open Pit Mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow.Hope this helps!-Jane Derdoy
Open pit and under ground.
Yes.
Mining underground provides access to deeper and richer mineral deposits that are often more valuable. It also allows for better control over ventilation and environmental impacts compared to open-pit mining. Additionally, underground mining can be safer for workers as they are protected from surface hazards and inclement weather.
Open cast mining is generally considered safer for workers than deep mining because it involves extracting minerals from the earth's surface, reducing the risks associated with confined spaces and high-pressure environments found in underground mines. In open cast operations, workers are less exposed to hazards such as tunnel collapses, gas leaks, and poor ventilation. Additionally, the larger, more accessible working area allows for better emergency response and evacuation procedures. Overall, the surface nature of open cast mining minimizes many of the dangers inherent to deep mining.
Open Pit Mining
Copper ore is typically extracted from the ground through a process called mining. This involves drilling, blasting, and hauling the ore to the surface for processing. Methods such as open-pit mining or underground mining are commonly used to extract copper ore from the ground.
Open-pit mining is generally less expensive in terms of exploration, development, equipment and operation. Typically, when a recovery operation is developed as an open-pit mine, the valuable mineral deposit is closer to the surface. Also, because it is open-pit, the scale of economy applies, meaning that larger equipment can be used, thus lowering the per-unit cost of operation. In addition, while underground mines must leave behind some of the target minerals in order to provide support for the mine structure, open-pit mines do not. It should be noted that while open-pit mining is generally the less expensive mining method. that will not always the case. This is due the geology. The nature of the ore body, and the depth and angle of the deposit will enter into cost considerations when choosing a mining method. It can also depend on the rehabilitation requirements as with open pit mining you are left with huge holes in the ground and with under ground/closed mining you simply have a small entry to close with mining is finished.
Surface mining is safer and easier than subsurface mining.Surface mining does more damage to the environment than subsurface.Surface mining creates more of a mess then subsurface or open cut mining.ON TH OTHER HAND-Subsurface mining is very dangerous.Subsurface mining allows you to retreive minerals from underground.Subsurface mining requires you to go underground, where you will have very little air.
Miners extract iron ore from the ground through open pit or underground mining methods. In open pit mining, large equipment is used to remove the ore from the ground, while underground mining involves drilling and blasting the ore to extract it. The extracted iron ore is then transported to a processing plant for further refinement.
It depends on various factors such as type of ore, geology of the area, and safety measures implemented. Open pit mining can have higher risks of landslides and equipment accidents, while underground mining can have risks related to tunnel collapses and exposure to toxic gases. Both types of mining require strict safety protocols to minimize risks to workers.
Above ground mining, often referred to as surface mining, falls within the mining industry sector. This sector involves the extraction of minerals and ores from the earth's surface, using methods such as open-pit or strip mining. It primarily focuses on resources like coal, metals, and industrial minerals. Surface mining differs from underground mining, which involves accessing resources located deeper beneath the earth's surface.
Oh, dude, strip mining and open pit mining are like cousins in the destructive mining family. Strip mining is all about stripping away layers of rock to get to the goods, while open pit mining is more about digging a big ol' hole in the ground to extract the goodies. So, like, one's more about peeling layers like an onion, and the other's about digging a big pit like you're trying to bury a secret.