Search results for keyword: cave
Shaft, chute, inclined shaft survey
Vertical well, slipway, inclined well exploration
Vertical wells, slipways, and inclined wells are all important exploration techniques for underground resources. With these techniques, an exploration company can carefully assess the extent and location of resources and make an informed decision ......
1020 
Sophia
Karst area survey
Karst landscapes are geographically widespread and are developed predominantly on a variety of carbonate rocks, although areas of limestones, gypsum and hydrogenic rocks are also affected in certain regions. The term ‘karst’ is derived from the Karst topography of the limestone region of Sloveni......
Surface mine slope survey
Open-pit slope survey
Open-pit slope survey is an important part of open-pit mining project assessment and design. In the survey of open-pit slope, various geological information is found and the basic frame of open-pit slope maintenance is determined; meanwhile, the stability of open-pit slope i......
very low frequency electromagnetic method
Very Low Frequency Electromagnetic Method
Very low frequency (VLF) electromagnetic methods are used primarily for surface and near-surface investigations of known conductive targets such as mines, pipelines, caves, and shipwrecks. VLF-EM instruments send low-frequency signals to the ground which ......
Chamber excavation
cave mining is the process of mining minerals or ore from an underground excavation. The process of mining caves usually involves excavating, cutting and supporting the rock with both mechanical and manual tools. Specialized equipment is designed to deal with the more extreme conditions of cave mi......
Mine Safety and Health
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Mining Safety and Health
Mining is a dangerous profession, and one that relies on both human and mechanical systems that can easily fail and cause injury or death. Poor safety practices can also lead to a variety of accidents, including explosions and cave-ins. To protect miners and ensure that......
Mine Merry
Mine Winds
Mine winds could scarcely be more different to the breezes blowing across the coves and shores of Dorset. Here, under the surface of the earth, the air can no longer be stirred by the ocean’s waves, and must find its own way around the caverns and tunnels of the mineshafts.
Where a m......
Problems in the operation of adding mold powder to the crystallizer
Introduction
Molten slag is a by-product of steel making processes. It is a highly viscous material that is produced when iron ore and other materials are combined and heated to extremely high temperatures. In order for the slag to be removed from the steel making vessel, it needs to be quenched ......
Spherical Bearings
Introduction
Spherical roller bearings are a type of rolling-element bearing that has an inner and outer ring with spherical raceways. Spherical rollers between them guide the load. The two raceway surfaces concave and convex, when a load is applied, the rollers roll along the surfaces and roller......
Manual hoist
Once upon a time, there was a young boy who lived in a small village. He had no family or friends and was very poor. One day, he happened to come across an old man walking on the side of the road. The man was carrying a big cloth bag on his back.
The old man stopped and kindly asked the boy what......
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