|本期目录/Table of Contents|

[1]许志发,王光进,赵怀刚,等.不同下游河道坡降尾矿库溃坝模型试验及下游影响研究[J].中国安全生产科学技术,2018,14(8):134-140.[doi:10.11731/j.issn.1673-193x.2018.08.022]
 XU Zhifa,WANG Guangjin,ZHAO Huaigang,et al.Study on dambreak model tests and downstream influence of tailings pond with different downstream river slopes[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(8):134-140.[doi:10.11731/j.issn.1673-193x.2018.08.022]
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不同下游河道坡降尾矿库溃坝模型试验及下游影响研究
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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8期
页码:
134-140
栏目:
职业安全卫生管理与技术
出版日期:
2018-08-31

文章信息/Info

Title:
Study on dambreak model tests and downstream influence of tailings pond with different downstream river slopes
文章编号:
1673-193X(2018)-08-0134-07
作者:
许志发1王光进1赵怀刚1唐永俊2高亚伟1
(1.昆明理工大学 国土资源工程学院,云南 昆明 650093;2.昆明理工大学 建筑工程学院,云南 昆明 650504)
Author(s):
XU Zhifa1 WANG Guangjin1 ZHAO Huaigang1 TANG Yongjun2 GAO Yawei1
(1. Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming Yunnan 650093, China;2. Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming Yunnan 650504, China)
关键词:
尾矿库模型试验下游河道坡降淹没范围灾害预估
Keywords:
tailings reservoirmodel test downstream river slope inundated area disaster prediction
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2018.08.022
文献标志码:
A
摘要:
溃坝尾砂流是含有尾砂和土石的暂时性流体,具有演进时间短、破坏性大等特点,对库区下游人民生命财产造成巨大损失。以四川某尾矿库为研究对象,建立室内溃坝模型,研究3种下游河道坡降情况下尾砂流的演进和沉积规律,并引入FLO-2D与室内溃坝模型试验进行参照。研究结果表明:室内模型试验结果与数值模拟结果相似;地势改变对于溃坝尾砂流的演进有着较大影响,沟谷、转弯和地势平缓的区域有利于尾砂的堆积和沉积;尾砂流对下游的冲击力与最大移动速度的平方和流深呈正比例关系,3种工况最大冲击力位置都与最大移动速度或最大流深相邻;根据试验和模拟结果绘制尾砂流致灾影响程度图,可为生产企业新建、扩建尾矿库提供重要的依据,保证下游人员生命、财产安全。
Abstract:
The dambreak tailings flow is a temporary fluid containing tailings and embankment, and it has the characteristics of short evolution time, large destructiveness, and so on, so it will cause huge loss to the life and property of people in the downstream of tailings pond. A laboratory dambreak model was established by taking a tailings pond in Sichuan as the research object, then the evolution and deposition laws of tailings flow under three types of conditions of downstream river slope were studied, and the FLO-2D was introduced to provide reference to the laboratory dambreak model tests. The results showed that the results of laboratory model tests were similar to the results of numerical simulation. The change of terrain had a relatively large influence on the evolution of the dambreak tailings flow, and the regions of gully, turning and flat terrain were beneficial to the accumulation and deposition of tailings. The impact force of tailings flow to the downstream was directly proportional to the square of the maximum movement speed and the depth of flow, and all the positions with the maximum impact force under three types of conditions were neighboring to the maximum movement speed or the maximum depth of flow. The diagram of disaster influence degree caused by the tailings flow was drawn according to the results of tests and simulation, which can provide important basis for the production enterprises to newly build or expand the tailings pond, and ensure the life and property safety of people in the downstream.

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备注/Memo

备注/Memo:
国家重点研发计划项目(2017YFC0804600);国家自然科学基金青年项目(41602307);国家安全监督管理总局重点项目(yunnan-001-2016AQ);云南铜业集团校企基金项目(2015YT05);中国博士后科学基金项目(2017M613006);昆明理工大学实验室建设与管理研究项目(SYYJ23)
更新日期/Last Update: 2018-09-03