含砂水流作用下尾矿侵蚀试验装置设计及应用

doi:10.16265/j.cnki.issn 1003-3033.2020.11.024

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (11): 162-167.doi: 10.16265/j.cnki.issn 1003-3033.2020.11.024

含砂水流作用下尾矿侵蚀试验装置设计及应用

蔡海¹, 巫尚蔚^**1 讲师, 吴冬明¹, 敬小非¹ 教授, 王文松² 讲师, 康钦容³ 副教授

1 重庆科技学院安全工程学院,重庆 401331;
2 重庆大学资源与安全学院,重庆 400030;
3 武汉工程大学兴发矿业学院,湖北武汉 430074

收稿日期:2020-08-06 修回日期:2020-10-11 出版日期:2020-11-28 发布日期:2021-07-15
通讯作者: **巫尚蔚(1990—),男,重庆人,博士,讲师,主要从事尾矿显微结构及宏细观关联性方面的研究。E-mail: 2017027@cqust.edu.cn。
作者简介:蔡海 (1991—),男,四川内江人,硕士研究生,研究方向为边坡和尾矿库等地质灾害。E-mail: 984641765@qq.com。
基金资助:
国家自然科学基金资助(51974051,51804222);重庆市基础与前沿研究计划项目 (cstc2018jcyjAX0231);重庆科技学院自制教学仪器设备项目(ZZSB2019013,ckhqzz2008005);重庆科技学院科技创新项目(YKJCX1820703)。

Design and application of test device for tailings erosion under sand flow

CAI Hai¹, WU Shangwei¹, WU Dongming¹, JING Xiaofei¹, WANG Wensong², KANG Qinrong³

1 College of Safety Engineering, Chongqing University of Science ＆ Technology, Chongqing 401331, China;
2 School of Resources and Safety Engineering, Chongqing University, Chongqing 400030, China;
3 Xingfa School of Mining Engineering, Wuhan University of Technology, Wuhan Hubei 430074, China

Received:2020-08-06 Revised:2020-10-11 Online:2020-11-28 Published:2021-07-15

摘要/Abstract

摘要： 为探究尾矿坝漫顶渐近破坏侵蚀特征,基于泥沙动力学理论,研制含砂水流条件下尾矿侵蚀试验装置;采用透明亚克力板制作的水平管观察尾矿试样被侵蚀前后的高度变化,通过变频器无级变速水流,同时采用游标卡尺、高速摄像机记录试样侵蚀前后的侵蚀高度及侵蚀时间;采用研制的侵蚀试验装置测量不同质量分数(0%、3%、6%、9%)含砂水流作用下尾矿侵蚀速率,分析含砂水流及流速对尾矿的侵蚀特征。结果表明:尾矿侵蚀速率在清水作用力下最大,且随水流中含砂量的增加而减小,该结论与前人研究成果相吻合,证明该试验装置具备一定的可行性和有效性。

关键词: 含砂水流, 尾矿, 侵蚀速率, 试验装置, 含砂量

Abstract: In order to explore gradual failure and erosion characteristics of overtop of tailing dam, a tailing erosion test device under sand flow was developed based on dynamic theory of sediment. Then, height change of tailing sample before and after erosion was observed with horizontal pipe made of transparent acrylic plate, and water flow was continuously changed through frequency converter. Meanwhile, erosion height and time of sample before and after erosion were recorded with Vernier caliper and high-speed camera. Finally, erosion rate of tailings with different mass fraction (0%, 3%, 6%, 9%) was measured with test device, and erosion characteristics of sand bearing water flow and velocity on tailings were analyzed. The results show that erosion rate of tailings reaches its maximum under action of clean water, and it will decrease along with increase of sand content in water flow. This conclusion is consistent with previous research results, which verifies feasibility and effectiveness of the test device.

Key words: sand bearing water flow, tailings, erosion rate, test device, sand content

中图分类号:

X936

蔡海, 巫尚蔚, 吴冬明, 敬小非, 王文松, 康钦容. 含砂水流作用下尾矿侵蚀试验装置设计及应用[J]. 中国安全科学学报, 2020, 30(11): 162-167.

CAI Hai, WU Shangwei, WU Dongming, JING Xiaofei, WANG Wensong, KANG Qinrong. Design and application of test device for tailings erosion under sand flow[J]. China Safety Science Journal, 2020, 30(11): 162-167.

参考文献

[1] 吴宗之,梅国栋.尾矿库事故统计分析及溃坝成因研究[J].中国安全科学学报,2014,24(9): 70-76.
WU Zongzhi, MEI Guodong. Statistical analysis of tailings pond accidents and cause analysis of dam failure[J]. China Safety Science Journal, 2014,24 (9): 70-76.
[2] 张家荣,刘建林.中国尾矿库溃坝与泄露事故统计及成因分析[J].中国钼业,2019,43(4): 10-14.
ZHANG Jiarong, LIU Jianlin. The statistics and causes of dam break and leakage in Chinese tailings pond[J]. China Molybdenum Industry, 2019,43(4): 10-14.
[3] JING Xiaofei, CHEN Yulong, DAVID J W, et al. Overtopping failure of a reinforced tailings dam: laboratory investigation and forecasting model of dam failure [J]. Water, 2019,11(2): 315-331.
[4] 刘克辉,吴冬明,蔡海,等.沟槽弯度对尾矿库溃决矿浆运动特性影响研究[J].中国安全科学学报,2020,30(2): 54-59.
LIU Kehui, WU Dongming, CAI Hai, et al. Study on influence of groove curvature on movement characteristics of slurry in tailing dam collapse[J]. China Safety Science Journal, 2020,30 (2): 54-59.
[5] SHAHRIARI M, AYDIN M E. Lessons learned from analysis of los frailes tailing dam failure[C]. International Conference on Applied Human Factors & Ergonomics. 2017: 309-317.
[6] WU Teng, QIN Jie. Experimental study of a tailings impoundment dam failure due to overtopping[J]. Mine Water and the Environment, 2018, 37(2): 272-280.
[7] 魏勇,许开立,熊琳,等.尾矿溃坝砂流流动特性及规律模型试验研究[J].中国安全科学学报,2017,27(4): 122-126.
WEI Yong, XU Kaili, XIONG Lin, et al. Model experiment research on flow characteristcs and regularity of tailing flow due to tailings dam-break[J]. China Safety Science Journal, 2017,27 (4): 122-126.
[8] 张晴雯,雷廷武,姚春梅,等.WEPP细沟剥蚀率模型正确性的理论分析与实验验证[J].农业工程学报,2004,20(1): 35-39.
ZHANG Qingwen, LEI Tingwu, YAO Chunmei, et al. Theoretical analysis and experimental verification of the detachment rate equation of rill erosion in WEPP[J]. Transactions of the CSAE, 2004,20(1): 35-39.
[9] 赵宇,陈晓燕,米宏星,等.估算细沟含沙水流剥蚀率的改进方法[J].农业工程学报,2014,30(15): 174-181.
ZHAO Yu, CHEN Xiaoyan, MI Hongxing, et al. Improved approach for estimation of detachment rate of rill sediment loading flow[J]. Transactions of the CSAE, 2014,30(15): 174-181.
[10] ELLISON W D. Soil erosion studies-part Ⅰ [J]. Agricultural Engineering,1947, 28(6): 145-146.
[11] 蔡清,程江涛,于沉香.细粒尾矿的定义及分类方法探讨[J].土工基础,2014,28(1): 91-93.
CAI Qing, CHENG Jiangtao, YU Chenxiang. Definition and classification of fine grain materials from mine tailings[J]. Soil Engineering and Foundation, 2014,28(1): 91-93.
[12] 钱宁,万兆惠.泥沙运动力学[M].北京:科学出版社,1983: 35-37.
[13] 吕楚岫,许国辉,任宇鹏,等.不同含沙量浑水体流变特性试验研究[J].中国海洋大学学报:自然科学版,2017,47(1): 43-51.
LYU Chuxiu, XU Guohui, REN Yupeng, et al. Experimental study on the rheological properties of turbid water in different concentrations [J]. Periodical of Ocean University of China:Natural Science Edition, 2017,47(1): 43-51.
[14] 雷廷武,张晴雯,赵军,等.确定侵蚀细沟集中水流剥离速率的解析方法[J].土壤学报, 2002,39(6): 788-793.
LEI Tingwu, ZHANG Qingwen, ZHAO Jun, et al. Analytic method for determination of detachment rate of concentrated flow in erosion rills[J]. Acta Pedologica Sinica, 2002,39(6): 788-793.
[15] 赵宇.黄土细沟侵蚀过程冲刷试验研究[D].重庆:西南大学,2015.
ZHAO Yu. A flume flushing method based study on process of rill erosion on loess slope [D]. Chongqing: Southwest University, 2015.

含砂水流作用下尾矿侵蚀试验装置设计及应用

Design and application of test device for tailings erosion under sand flow

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