Formation mechanism of benches on stability of dumping area
The formation mechanism of benches on stability of dumping area was discussed to design optimum dumping areas.At first, a site investigation was carried out at Heidaigou open pit coal mine.The site investigation indicated different dumping operations have different operational and geotechnical issues.Series of laboratory tests with gravel were carried out based on research site conditions to simulate formation of a single bench and of multiple benches.Meanwhile, the relationship between efficiency of dumping operation and interval distance was simulated in laboratory.After that, the relationship between safety factor of the dumping area and dumping height, angle of bench, bulk factor, and truck transport were simulated by Phase2D software.The design of blasting can be modified to make the particle size of waste smaller.Height of bench can be as high as possible, up to the allowed safety values of workers and equipment working.Angle of bench is not important to dumping operation.Bulk factor of waste loess should be as small as possible to improve dumping operation stability.The activity of truck transport in dumping area has a beneficial effect on stability of dumping area.Design of the dumping operation must consider the total efficiency of ground leveling operation work and forming dumping area work.
Formation mechanism benches stability of dumping area site investigation laboratory tests numerical simulation
DonghuaZhang Takashi Sasaoka SugengWahyud Hideki Shimada
College of Mining Engineering, Taiyuan University of Technology, No.18XinKuangyuan Road, West Yingze Department of Earth Resources Engineering, Faculty of Engineering,Kyushu University, 744 Motooka, Ni
国际会议
The 34th International Conference on Ground Control in Mining (ICGCM) 2015(34届国际采矿岩层控制会议)
焦作
英文
215-229
2015-10-17（万方平台首次上网日期，不代表论文的发表时间）