Application of Down-hole Hammer Technology for Survey in Worked-out Area of Molybdenum Mine

Abstract:

According to the application of high-air pressure down-hole hammer drilling technology in worked-out area of molybdenum mine, the paper introduced the subsidence area drilling with high-air pressure down-hole hammer and crossing subsidence area construction technology. By the survey in worked-out area of molybdenum mine with high-air pressure down-hole hammer drilling technology, relative drilling technological methods were found out and success rate of borehole was largely increased.