About us
About us
Gerpon is mainly dealing in producer and wholesale of all kinds of wear parts and special steel product at home and abroad.
Production Equipment
Production Equipment
Precise heat treatment of quenching, tempering and normalizing could make the steels in a perfect c..
Company Culture
Company Culture
Unity, hard work, realistic, innovative
Company  news
Company news
Industry News
Industry News
Inspection equipment
Inspection equipment
Separated quality testing department equipped advanced equipment
Quality control process
Quality control process
Quality control process
Wear parts
Wear parts
Widely used in foundation drilling,coal mining industry,geotechnical engineering,etc.
Global market
Global market
Domestic market
Domestic market

Application

Underground mining

 Underground mining

Detailed introduction

Underground mining

Main articles: Underground mining (hard rock) and Underground mining (soft rock)


Mantrip used for transporting miners within an underground mine

Sub-surface mining consists of digging tunnels or shafts into the earth to reach buried ore deposits. Ore, for processing, and waste rock, for disposal, are brought to the surface through the tunnels and shafts. Sub-surface mining can be classified by the type of access shafts used, the extraction method or the technique used to reach the mineral deposit. Drift mining utilizes horizontal access tunnels, slope mining uses diagonally sloping access shafts, and shaft mining utilizes vertical access shafts. Mining in hard and soft rock formations require different techniques.


Other methods include shrinkage stope mining, which is mining upward, creating a sloping underground room, long wall mining, which is grinding a long ore surface underground, and room and pillar mining, which is removing ore from rooms while leaving pillars in place to support the roof of the room. Room and pillar mining often leads to retreat mining, in which supporting pillars are removed as miners retreat, allowing the room to cave in, thereby loosening more ore. Additional sub-surface mining methods include hard rock mining, which is mining of hard rock (igneous, metamorphic or sedimentary) materials, bore hole mining, drift and fill mining, long hole slope mining, sub level caving, and block caving.