Darbandikhan堆石坝下游边坡在溃坝过程中的稳定性评价

IF 1.2 Q3 MULTIDISCIPLINARY SCIENCES

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-03-01 DOI:10.14500/ARO.10678

Sirwan Gh. Salim, K. M. Noori

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引用次数: 1

摘要

土石坝在使用寿命期间面临各种荷载条件。最关键的负载条件之一是在稳定状态条件之后水位的快速下降。水位骤降可能导致大坝上游边坡失稳。本工作从坝上游边坡的安全系数角度考察了不同水位下降率下堆石坝的稳定性。为此，使用了名为GeoStudio 2012 SEEP/W和SLOPE/W的计算机软件进行数值分析。结果表明，水位下降率对堆石坝的稳定性有显著影响，当水位下降率从1m/天增加到10m/天时，堆石坝的稳定性降低了33%。根据结果，对于所研究的情况，可以建议水位下降率（1米/天）。

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Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown

Earth and rockfill dams face a variety of loading conditions during lifetime. One of the most critical loading conditions is the rapid drawdown of water level after steady state conditions. Rapid drawdown may cause instability of upstream slope of the dam. The present work examines the stability of a rockfill dam under different drawdown rates in terms of factor of safety for the upstream slope of the dam. For this purpose, a computer software named GeoStudio 2012 SEEP/W and SLOPE/W has been used for the numerical analysis. The results showed that the drawdown rate has a significant effect on stability of rockfill dam in which increasing the drawdown rate from 1 m/day to 10 m/day decreases the stability of the dam by 33%. Based on the outcomes, for the studied case the drawdown rate (1 m/day) can be recommended.

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来源期刊

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY MULTIDISCIPLINARY SCIENCES-

自引率

33.30%

发文量

审稿时长

16 weeks