China Safety Science Journal ›› 2022, Vol. 32 ›› Issue (5): 134-139.doi: 10.16265/j.cnki.issn1003-3033.2022.05.1699
• Safety engineering technology • Previous Articles Next Articles
ZENG Jihan1(), ZHANG Guang1, WU Hao2, HU Shaohua1,3,**()
Received:
2021-12-12
Revised:
2022-04-07
Online:
2022-08-17
Published:
2022-11-28
Contact:
HU Shaohua
ZENG Jihan, ZHANG Guang, WU Hao, HU Shaohua. Determination method of comprehensive early-warning indexes for tailings dam based on improved POT model[J]. China Safety Science Journal, 2022, 32(5): 134-139.
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URL: http://www.cssjj.com.cn/EN/10.16265/j.cnki.issn1003-3033.2022.05.1699
Tab.1
Non-monitoring indicators' proper values and their risk index R
指标名称 | 非监测指标特征值及对应风险指数R | 工程实际值 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
堆积密度/(t·m-3) | >2.0 | [1.7,2.0] | [1.4,1.7] | <1.4 | — | 1.35 | ||||||
10 | 40 | 70 | 100 | — | ||||||||
排渗设施 | 正常 | 部分破坏 | 严重破坏 | — | — | 正常 | ||||||
10 | 50 | 100 | — | — | ||||||||
防洪标准 | 符合 | 不符合 | — | — | — | 符合 | ||||||
10 | 100 | — | — | — | ||||||||
排洪能力 | 良好 | 合格 | 差 | — | — | 良好 | ||||||
10 | 50 | 100 | — | — | ||||||||
汇水面积/km2 | <0.01 | [0.01,0.05] | (0.05,0.1] | (0.1,1] | >1 | 2.84 | ||||||
10 | 25 | 50 | 75 | 100 | ||||||||
降雨时长/h | <3 | [3,12] | (12,24] | (24,72] | >72 | <12 | ||||||
10 | 25 | 50 | 75 | 100 | ||||||||
平均粒径/mm | >0.5 | [0.2,0.5] | [0.05,0.2) | <0.05 | — | 0.085 | ||||||
10 | 40 | 70 | 100 | — | ||||||||
堆积坝下游坡比(1:n) | >5 | [3,5] | [1,3] | <1 | — | 1:1.8 | ||||||
10 | 40 | 70 | 100 | — | ||||||||
堆积坝高/m | <30 | [30,60] | (60,100] | (100,200] | >200 | 82 | ||||||
10 | 25 | 50 | 75 | 100 | ||||||||
地形坡度α/(°) | <5.7 | [5.7,25] | >25 | — | — | <5.7 | ||||||
10 | 50 | 100 | — | — | ||||||||
全库容/万m3 | <100 | [100,1 000] | (1 000,10 000] | (10 000,50 000] | >50 000 | 1 469.34 | ||||||
10 | 25 | 50 | 75 | 100 | ||||||||
坝体稳定性系数 | 大于安全系数 | 小于安全系数 | — | — | — | >安全系数 | ||||||
10 | 100 | — | — | — | ||||||||
坝体裂缝 | 无裂隙 | 有少量裂隙 | 有较多裂隙 | 有大量裂隙 | — | 无裂隙 | ||||||
10 | 40 | 70 | 100 | — |
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