A new manufacture method of backfill samples in lab-Illustrated with a case study
来源期刊：中南大学学报(英文版)2013年第4期
论文作者：杜坤 李夕兵 YIN Zhi-qiang(殷志强)
文章页码：1022 - 1028
Key words：subsequent backfilling; settlement; distribution of particle; strength
Abstract: The differences between the formation processes of lab backfill samples and field backfill were analysed. An improved sampling mold, containing an outer box shell and inner sampling mold, was put forward. The new and traditional test molds were applied to make subsequent-backfill samples of Yong-ping copper mine. The observation of mass fraction and theory analysis of settlement and distribution of tailing particles were carried out. The research results show that the magnitude of the strength of the backfill forming in new mold is lower than that of backfill forming in traditional mold, and the biggest gap amounts to 36%.
DU Kun(杜坤)1,2, LI Xi-bing(李夕兵)1,2, YIN Zhi-qiang(殷志强)3
(1. School of Resources and Safety Engineering, Central South University, Changsha 410083, China;
2. Hunan Key Laboratory of Resources Exploitation and Hazard Control for Deep Metal Mines,
Changsha 410083, China;
3. School of Mineral and Safety, Anhui University of Science and Technology, Huainan 232001, China)
Abstract:The differences between the formation processes of lab backfill samples and field backfill were analysed. An improved sampling mold, containing an outer box shell and inner sampling mold, was put forward. The new and traditional test molds were applied to make subsequent-backfill samples of Yong-ping copper mine. The observation of mass fraction and theory analysis of settlement and distribution of tailing particles were carried out. The research results show that the magnitude of the strength of the backfill forming in new mold is lower than that of backfill forming in traditional mold, and the biggest gap amounts to 36%.
Key words:subsequent backfilling; settlement; distribution of particle; strength
