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黄金科学技术 ›› 2019, Vol. 27 ›› Issue (6): 903-911.doi: 10.11872/j.issn.1005-2518.2019.06.903

• 采选技术与矿山管理 • 上一篇    下一篇

基于模糊多元联系度模型的尾矿库综合安全评价

王石(),石勇(),王万银   

  1. 江西理工大学资源与环境工程学院,江西 赣州 341000
  • 收稿日期:2018-12-25 修回日期:2019-03-21 出版日期:2019-12-31 发布日期:2019-12-24
  • 通讯作者: 石勇 E-mail:stonersxx@126.com;jxlgdxhxysy3511@163.com
  • 作者简介:王石(1987-),男,河南济源人,讲师,从事采矿工艺与充填技术研究工作。stonersxx@126.com
  • 基金资助:
    国家自然科学基金项目“APAM强化絮网结构后全尾砂料浆流动性能演化机制研究”(51804134);“渗流—蠕变耦合作用下全尾砂胶结充填体力学性能演化规律及损伤破坏机制”(51804135);江西省自然科学基金项目“远距离输送过程中添加絮凝剂的高浓度全尾砂浆颗粒分散机理研究”(20181BAB216013)

Comprehensive Safety Evaluation of Tailings Reservoir Based on Fuzzy Multivariate Contact Model

Shi WANG(),Yong SHI(),Wanyin WANG   

  1. School of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China
  • Received:2018-12-25 Revised:2019-03-21 Online:2019-12-31 Published:2019-12-24
  • Contact: Yong SHI E-mail:stonersxx@126.com;jxlgdxhxysy3511@163.com

摘要:

为准确评价尾矿库的安全等级,以黄金洞尾矿库为例,分析影响尾矿库安全的各因素之间的关系,综合运用模糊多元联系度理论与层次分析法(AHP),建立了包含5个影响因素和26个影响因子的尾矿库综合安全评价模型。由AHP得出各项主、客观指标的权重系数,引入模糊多元联系度理论,综合考虑确定性与不确定性因素,处理综合集成问题,构造隶属函数量化指标的实测值。结果表明:黄金洞尾矿库安全等级为Ⅱ级,尾矿库处于较稳定状态。经比较不确定性因素大小,得出尾矿排放(B3)>尾矿坝(B2)>安全管理(B1)>尾矿输送与回水(B5)>排洪系统(B4),说明尾矿排放指标的不确定性因素最大,需对尾矿排放加强管理。该模型得到的评价结果与实际结果相吻合,为尾矿库安全性评价提供了一种可行的方法。

关键词: 尾矿库, 模糊综合评判, 层次分析法, 安全评价, 集对分析, 多元联系度

Abstract:

Tailings reservoir is an important facility to store tailings, and it is a dangerous source with high potential energy, there is a risk of dam break.Once the tailings reservoir is crashed, it will seriously affect the safety of people’s lives and property and destroy the local ecological environment, so it is of great significance to evaluate and predict the safety of tailings reservoir. For the tailings pond is a nonlinear complex system, there are many uncertain factors in the process of safety evaluation and prediction of tailing pond, and the factors are interrelated and coupled, so the safety evaluation of tailing pond has uncertainty.In order to accurately evaluate the safety level of the tailings pond,the Huangjindong tailings reservoir was used as a sample,and the relationship between various factors in the safety of the tailings pond was analyzed.Comprehensive application of fuzzy multi-connection theory and analytic hierarchy process (AHP),a comprehensive safety assessment model for tailings pond with five influencing factors and 26 influencing factors was constructed.The weighting coefficient of each subjective and objective index was obtained by AHP,and the evaluation index was graded. In order to quantify some qualitative factors,the fuzzy multi-connection degree theory was introduced to identify the uncertain factors affecting the safety of the tailings pond.The combination of certainty and uncertainty was considered to deal with the comprehensive integration problem, and the measured values of quantitative indicators of membership function were constructed.The results show that the comprehensive safety evaluation score of the Huangjindong tailings pond is 80.052,and its safety grade of the golden hole tailings pond is Ⅱ,and the tailings pond was in a relatively stable state.By calculating the degree of contact between the first-level indicators,the degree of opposition c is 0.0615,the degree of identity a is 0.5633,a>c,set pair potential is the same potential,and the investment and management of safe production should be strengthened.Using the five-element relationship function to calculate the uncertainty of five influencing factors,through calculation,safety management(B1),tailings dam(B2),tailings discharge(B3),flood discharge system (B4) and tailings transport and return water(B5),the uncertainty of the five indicators is 0.4013,0.4240,0.5132,0.0148 and 0.2644. By comparing the size of the uncertainty factor,tailings discharge(B3)>tailings dam(B2)>safety management(B1)tailings transport and return water(B5)>flood discharge system(B4).In the end,tailings discharge is the most uncertain factor,and it is necessary to strengthen the management of tailings discharge.The evaluation results obtained by the model are consistent with the actual results,which provided a feasible method for the safety evaluation of the tailings pond.

Key words: tailings pond, fuzzy comprehensive evaluation, analytic hierarchy process, safety assessment, set pair analysis, multivariate contact

中图分类号: 

  • X936

表1

RI取值"

阶数nRI阶数nRI
1051.12
2061.26
30.5271.36
40.8981.41

表2

集对势与次序的关系"

名称a、bc的关系集对势
反势b1+b2+b3<a强反势
a<b1+b2+b3<c弱反势
同势b1+b2+b3<c强同势
c<b1+b2+b3<a弱同势
均势b1+b2+b3<a强均势
b1+b2+b3=a弱均势

图1

尾矿库评价指标体系"

表3

尾矿库安全等级划分"

安全等级分数安全等级分数
Ⅰ级90~100Ⅳ级45~60
Ⅱ级75~90Ⅴ级0~45
Ⅲ级60~75

表4

尾矿库级别划分"

级别坝高级别坝高
一级H≥200四级30≤H<60
二级100≤H<200五级H<30
三级60≤H<100

表5

各指标权重系数"

准则层W指标层Wi
B10.3130C110.4675
C120.1599
C130.2580
C140.0435
C150.0711
B20.3142C210.0896
C220.2048
C230.5296
C240.0522
C250.1238
B30.0839C310.3712
C320.3902
C330.0816
C340.1571
B40.2371C410.4924
C420.2160
C430.1152
C440.0297
C450.0851
C460.0616
B50.0518C510.4449
C520.0277
C530.2324
C540.1591
C550.0642
C560.0717

表6

尾矿库安全评价指标评分标准与得分"

底层指标Ⅰ级Ⅱ级Ⅲ级Ⅳ级Ⅴ级分值
C11>90>80>70>60≤6090
C12>85>70>55>40≤4085
C13>90>80>70>60≤6082
C14>90>70>50>30≤30100
C15>80>60>40>20≤2080
C21>80>60>40>20≤2080
C22>80>70>60>50≤5070
C23>90>85>80>75≤7550
C24>90>80>70>60≤6090
C25>90>80>70>60≤6060
C31>80>60>40>20≤2060
C32>80>60>40>20≤2090
C33>90>80>70>60≤6090
C34>90>70>50>30≤3070
C41>90>80>70>60≤60100
C42>80>60>40>20≤20100
C43>90>80>70>60≤60100
C44>90>80>70>60≤6050
C45>90>80>70>60≤60100
C46>90>80>70>60≤60100
C51>90>70>50>30≤30100
C52>90>70>50>30≤300
C53>90>70>50>30≤3080
C54>90>70>50>30≤3090
C55>90>70>50>30≤30100
C56>90>70>50>30≤300

表7

二级指标联系度"

二级指标联系度不确定性b
B1μ1=0.5916+0.2381i1+0.1374i2+0.0258i3+0.0071j0.4013
B2μ2=0.2528+0.1523i1+0.1205i2+0.1512i3+0.3232j0.4240
B3μ3=0.4340+0.2780i1+0.1528i2+0.0824i3+0.0528j0.5132
B4μ4=0.9733+0.0059i1+0.0030i2+0.0059i3+0.0119j0.0148
B5μ5=0.7240+0.1580i1+0.0748i2+0.0316i3+0.0116j0.2644

表8

不同模型的评价结果对比"

评价模型安全等级安全状态
模糊多元联系度Ⅱ级较安全
AHP-TOPSISⅡ级较安全
FAHPⅡ级基本安全
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