Similarity Simulation Experiment on Strength Distribution in Three-Dimen-sional Spatial of Cemented Tailing Backfill

Wenchen LI; Lijie GUO; Xinzheng CHEN; Zongnan LI; Xin LI

doi:10.11872/j.issn.1005-2518.2018.04.528

Gold Science and Technology >

2018 , Vol. 26 >Issue 4: 528 - 534

DOI: https://doi.org/10.11872/j.issn.1005-2518.2018.04.528

Similarity Simulation Experiment on Strength Distribution in Three-Dimen-sional Spatial of Cemented Tailing Backfill

Wenchen LI ¹^,² ,
Lijie GUO ¹^,²^,^* ,
Xinzheng CHEN ¹^,² ,
Zongnan LI ¹^,² ,
Xin LI ¹^,²

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¹Beijing General Research Institute of Mining and Metallurgy Technology Group，Beijing 102628，China
²National Center for International Joint Research on Green Metal Mining，Beijing 102628，China

Received date: 2018-03-31

Revised date: 2018-05-18

Online published: 2018-10-17

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Highlights

To discover the distribution law of cemented tailing backfill，a similarity simulation experiment was designed according to the size of sublevel filling open stope in a copper mine.According to Froude similarity criterion，filling experiments were carried out to simulate filling velocity and filling amount.Samples were drilled from three dimensional space and uniaxial compressive strength （UCS） experiments were performed on all samples.UCS distribution laws of cemented backfill samples in three dimensional were analyzed.The results show that：UCS of cemented tailing backfill①Shows marked nonuniform in sublevel open stope；②Step down and then rise in the longitudinal；③On the transverse，the middle is higher than the fringes；④On the vertical，the strength on bottom is commonly higher than the top.According to previous studies and this experiment，the nonuniform distribution of cemented tailing backfill is mainly caused by factors such as tailing gradation， cement content and slurry concentration during consolidation and flow settlement characteristics

Cite this article

Wenchen LI , Lijie GUO , Xinzheng CHEN , Zongnan LI , Xin LI . Similarity Simulation Experiment on Strength Distribution in Three-Dimen-sional Spatial of Cemented Tailing Backfill[J]. Gold Science and Technology, 2018 , 26(4) : 528 -534 . DOI: 10.11872/j.issn.1005-2518.2018.04.528

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References

Publishing order | Descend order by publishing year | Descend order by cited within

1	于润沧.我国胶结充填工艺发展的技术创新[J].中国矿山工程，2010，39（5）：1-3. Yu Runcang .Development and innovation of cemented filling technology in China[J].China Mine Engineering，2010，39（5）：1-3

2	Li W C ， Fall M. Strength and self-desiccation of slag-cemented paste backfill at early ages：Link to initial sulphate concentration[J].Cement and Concrete Composites，2018，89：160-168.

3	Grice A G .Recent minefill developments in Australia[C]//7 th International Symposium on Mining with Backfill，2001:351-357.

4	Li W C ， Fall M. Sulphate effect on the early age strength and self-desiccation of cemented paste backfill[J].Construction & Building Materials，2016，106：296-304.

5	刘同有，蔡嗣经.国内外膏体充填技术的应用与研究现状[J].中国矿业，1998（5）：1-4. Liu Tongyou ， Cai Sijing .Status Quo of application and research of paste fill technology in China and abroad[J].China Mining Magazine，1998（5）：1-4.

6	王建栋，吴爱祥，王贻明，等.粗骨料膏体抗离析性能评价模型与实验研究[J].中国矿业大学学报，2016，45（5）：866-872. Wang Jiandong ， Wu Aixiang ， Wang Yiming ，et al.Evaluation model and experimental study for segregation resistance of paste with coarse aggregate[J].Journal of China University of Mining & Technology，2016，45（5）：866-872.

7	乔登攀，程伟华，张磊，等.现代采矿理念与充填采矿[J].有色金属科学与工程，2011，2（2）：7-14. Qiao Dengpan ， Cheng Weihua ， Zhang Lei ，et al.Modern mining concepts and filling technique[J].Nonferrous Metals Science and Engineering，2011，2（2）：7-14.

8	张海波，宋卫东.评述国内外充填采矿技术发展现状[J].中国矿业，2009，18（12）：59-62. Zhang Haibo ， Song Weidong .Discussion on the current state of backfill mining from the domestic and foreign development[J].China Mining Magazine，2009，18（12）：59-62.

9	吴爱祥，王洪江.金属矿膏体充填理论与技术[M].北京：科学出版社，2015. Wu Aixiang ， Wang Hongjiang .Theory and Technology of Paste f Filling in Metal Mine[M].Beijing：Science Press，2015.

10	余伟健，高谦.充填采矿优化设计中的综合稳定性评价指标[J].中南大学学报（自然科学版），2011，42（8）：2475-2484. Yu Weijian ， Gao Qian .Stability evaluation indexes in optimization design of filling mining[J].Journal of Central South University（Science and Technology），2011，42（8）：2475-2484.

11	由希，任凤玉，何荣兴，等.阶段空场嗣后充填胶结充填体抗压强度研究[J].采矿与安全工程学报，2017，34（1）：163-169. You Xi ， Ren Fengyu ， He Rongxing ，et al.Research on compressive strength of cemented filling body in subsequent filling at the stage of open stope[J].Journal of Mining & Safety Engineering，2017，34（1）：163-169.

12	曹帅，宋卫东，薛改利，等.考虑分层特性的尾砂胶结充填体强度折减试验研究[J].岩土力学，2015，36（10）：2869-2876. Cao Shuai ， Song Weidong ， Xue Gaili ，et al.Tests of strength reduction of cemented tailings filling considering layering character[J].Rock and Soil Mechanics，2015，36（10）：2869-2876.

13	许文远，杨小聪，郭利杰.充填体不均匀性相似模拟实验研究[J].金属矿山，2011，40（5）：18-22. Xu Wenyuan ， Yang Xiaocong ， Guo Lijie .Experimental research on inhomogeneous simulation of fill-body[J].Metal Mine，2011，40（5）：18-22.

14	甘德清，申梦飞，孙光华，等.金属矿山充填体强度分布规律实验研究[J].金属矿山，2016，45（4）：32-35. Gan Deqing ， Shen Mengfei ， Sun Guanghua ，et al.Experimental study on strength distribution of filling body in metal mine[J].Metal Mine，2016,45（4）：32-35.

15	赵国彦，杜雪鹏.块石胶结充填颗粒离析机理[J].中南大学学报（自然科学版），2012（8）：3195-3199. Zhao Guoyan ， Du Xuepeng .Mechanism on particle segregation of rocky cemented fill[J].Journal of Central South University（Science and Technology），2012（8）：3195-3199.

16	尹裕，杨家冕，肖益盖. 深井矿山充填体强度分布规律研究[J].有色金属工程，2015（增1）：21-23. Yin Yu ， Yang Jiamian ， Xiao Yigai . Research on the distribution regularities for strength of filling body in deep mines[J].Nonferrous Metals Engineering，2015（Supp.1）：21-23.

17	汪海萍，谭玉叶，吴姗，等.尾砂级配对充填体强度的影响及优化[J].有色金属（矿山部分），2014，66（4）：26-30. Wang Haiping ， Tan Yuye ， Wu Shan ，et al. Effects and optimization of tailings gradation on the backfill strength[J].Nonferrous Metals（Mining Section），2014，66（4）：26-30.

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