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[1]辛保泉,万露,耿龙龙,等.尾矿库溃坝室外模型试验及灾害预测分析[J].中国安全生产科学技术,2018,14(5):102-108.[doi:10.11731/j.issn.1673-193x.2018.05.015]
　XIN Baoquan,WAN Lu,GENG Longlong,et al.Outdoor model tests and disaster prediction analysis of dam break in tailings reservoir[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(5):102-108.[doi:10.11731/j.issn.1673-193x.2018.05.015]
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尾矿库溃坝室外模型试验及灾害预测分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年5期
页码:
102-108
栏目:
职业安全卫生管理与技术
出版日期:
2018-05-31

文章信息/Info

Title:
Outdoor model tests and disaster prediction analysis of dam break in tailings reservoir
文章编号:
1673-193X(2018)-05-0102-07
作者:
辛保泉1; 2; 万露3; 耿龙龙4; 谭钦文2
（1.中国石油化工股份有限公司 青岛安全工程研究院，山东 青岛 266101；2.西南科技大学，四川 绵阳 621010；3.赛飞特工程技术集团有限公司，山东 青岛 266061；4.上海民航职业技术学院，上海 200030)
Author(s):
XIN Baoquan1; 2;  WAN Lu3;  GENG Longlong4;  TAN Qinwen2
(1.SINOPEC Research Institute of Safety Engineering, Qingdao Shandong 266101, China;2.Southwest University of Science and Technology, Mianyang Sichuan 621010, China;3.Saifeite Engineering Technology Group Co., Ltd., Qingdao Shandong 266061, China;4.Shanghai Civil Aviation Vocational and Technical College Shanghai 200030, China)
关键词:
尾矿库; 溃坝灾害; 相似试验; 泥石流; 预测分析
Keywords:
tailings reservoir;  dam break disaster;  similarity test;  debris flow;  prediction analysis
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2018.05.015
文献标志码:
A
摘要:
为真实模拟尾矿库溃坝灾害后果，提高库区下游事故防控能力，以四川鑫联矿业尾矿库为试验原型，应用模型相似理论进行了室外全溃坝试验，探究了2种不同沟槽条件下，溃坝泥石流的流速变化、冲击高度和沉积深度等流动特性，并预测了下游溃坝影响范围。试验结果表明：流速随下游距离近似呈对数函数逐渐降低，且粗糙度对流速影响较大，有土工布时的流速是无土工布时的1.05~1.34倍；最大冲击高度和最终沉积深度是反映下游溃坝影响范围的重要指标，推算出下游5个断面位置的冲击高度在12~20 m，沉积深度6~14 m；在靠近溃坝口处的冲击高度最大，但沉积深度最小，随矿浆泥石流的运动，冲击高度随地形高差交替变化，而沉积深度总体递增。
Abstract:
In order to truly simulate the consequence of dam break disaster in the tailings reservoir, and improve the prevention and control capability of the accidents downstream the reservoir area, taking the tailings reservoir of Sichuan Xinlian Mining as the test prototype, the tests of outdoor fully dam break were carried out by using the model similarity theory. The flow characteristics of debris flow caused by the dam break, such as the variation of flow velocity, impact height and deposition depth, etc., under two different groove conditions were studied, and the downstream influence range of dam break was predicted. The results showed that the flow velocity decreased gradually with the downstream distance as a logarithmic function approximatively, and the roughness had a greater influence on the flow velocity, the flow velocity with the geotextile was 1.05-1.34 times of that without the geotextile. The maximum impact height and final deposition depth were the important indexes to reflect the downstream influence range of dam break, and it was calculated that the impact heights at the positions of five downstream sections were 12-20 m, and the deposition depths were 6-14 m. The impact height near the dam break breach was the largest, but the deposition depth was the smallest. Along with the movement of slurry debris flow, the impact height changed alternately with the topographic height difference, while the deposition depth increased as a whole.

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备注/Memo

备注/Memo:
四川省科技创新苗子工程项目（2017016）
更新日期/Last Update: 2018-06-19