Prediction Approach for Failure of Tailings Dam

被引：0

作者：

Miao, Runze ^{[1
]}

Zhong, Deyu ^{[1
]}

Zhang, Hongwu ^{[1
]}

Qin, Jie ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China

来源：

PROCEEDINGS OF THE 35TH IAHR WORLD CONGRESS, VOLS III AND IV | 2013年

关键词：

Tailings dam; Retrogressive erosion; Prediction model; Volume of dam failure;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Tailings dam is a man-made potential source of debris flow which will cause a disaster once the dam being broken. This rate and amount of tailings released directly impact the hazard to life and property downstream of a breached tailings dam. This paper proposed a prediction approach of volume of tailings dam failure for a retrogressive erosion process of cohesive deposits due to overtopping. The flow pattern in dam crest changed from the laminar flow to turbulent flow which caused a large number of tailings erosion-the main source of the failure amount. The formula is validated bythe physical models of tailings dams in two stages in China. The experimental results confirm the effectiveness of the formula. Its effectiveness of and applicability to simulate the process of tailings dam-break, the process of the change of failure volume of tailings dam, and erosion depthat dam crest, were exhibited. This paper analyzes the mechanics of the key factors affecting the retrogressive erosion of tailings dam-break, and points out the technical problems and solutions relating to the improvement of the accuracy and adequacy of the formula.

引用

页数：9

共 13 条

[1]

BROWN CA, 1988, WATER RESOUR BULL, V24, P1303

[2]

Fei X. F., 1981, J SEDIMENT RES, V9, P19

[3] Necessity of integrated methodology for hazard mitigation of quake lakes: Case study of the Wenchuan Earthquake, China [J].

Fu X. ;

Liu F. ;

Wang G. ;

Xu W. ;

Zhang J. .

Frontiers of Architecture and Civil Engineering in China, 2011, 5 (1) :1-10

[4]

Hanson G. J., 2003, ASME M ST JOS MI US

[5]

He L., 2009, J BASIC SCI ENG, V17, P10

[6] ANALYSES OF FLOW FAILURES OF MINE TAILINGS DAMS [J].

JEYAPALAN, JK ;

DUNCAN, JM ;

SEED, HB .

JOURNAL OF GEOTECHNICAL ENGINEERING-ASCE, 1983, 109 (02) :150-171

[7] Real time prediction approach for floods caused by failure of natural dams due to overtopping [J].

Ma, Hongbo ;

Fu, Xudong .

ADVANCES IN WATER RESOURCES, 2012, 35 :10-19

[8] RIVERBANK STABILITY ANALYSIS .1. THEORY [J].

OSMAN, AM ;

THORNE, CR .

JOURNAL OF HYDRAULIC ENGINEERING-ASCE, 1988, 114 (02) :134-150

[9]

Peng R., 1981, J SEDIMENT RES, P14

[10]

Wagener FV, 1998, TAILINGS AND MINE WASTE '98, P925

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