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Author: Admin | 2025-04-28
Mining.Why is surface mining less expensive than subsurface mining?Discuss one reason why surface coal mining is generally less expensive than subsurface mining. Surface mining requires fewer workers who are paid less than the subsurface miners.What is subsurface mining process?Subsurface mining is a mining method in which soil and rocks are removed to reach underlying coal or minerals. It is used to mine ore deposits that are 50 m or more beneath Earth’s surface. Room-and-pillar mining is a common method of subsurface mining.What are the types of surface mining?Surface mining, method of extracting minerals near the surface of the Earth. The three most common types of surface mining are open-pit mining, strip mining, and quarrying. What are surface mining techniques?Surface mining is a method of mining used to extract minerals and metals which are near the surface of the Earth. There are three basic types of surface mining: open pit mining, strip mining, and quarry mining. These methods are much more economical than underground mining, yet they can have a more significant impact on… What are the advantages of strip mining?List of Pros of Strip Mining. 1. It is much more efficient compared to underground mining. Those who advocate for strip mining believe that the recovery rate of materials is higher using the method. It is estimated that about 80 to 90% of the material can be recovered compared to the 50% recovered using tunnel mining. Post navigation
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