General Blasting Practice and Wall Control Procedure At Chatree Gold Mine, Thailand
Chatree Gold Mine is the largest open pit mine in Central Thailand which produced 74,137 ounces of gold in July 2007 - June 2008. The Chatree deposits consist of complex andesitic centers adjacent to the rhyolitic centers. Structural geology of interested area (CH pit) can be divided in to 3 main structures: sheared zone, andesite dykes and faults. The point discussed in this paper is general production blasting practice and controlled blasting method using to maintain the stability of the wall. General production blasting conducted in 6 meters bench using three main blast patterns with powder factor between 0.35 and 0.80 correlated to rock type. Trim blasting and pre-split blasting have been proposed, trialed and utilized in varied factor. Quality control such as hole depth measurement and hole angle drilled are also include. The present practices are mentioned.
R.Limprasert
Akara Mining Co., Ltd., Thailand
国际会议
香港
英文
1-4
2009-05-19（万方平台首次上网日期，不代表论文的发表时间）