伊拉克Shirin土坝在不同运行条件下的性能评估

Q3 Environmental Science
A. Zedan, Marewan Ridha Faris, Ali Kareem Bdaiwi
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引用次数: 3

摘要

应定期对大坝进行适当的管理,以避免溃坝和溃坝。本文采用有限元法对石林土坝在不同条件下的稳定性进行了分析。在提克里特工程学院/大学的实验室中对大坝建设中使用的土壤进行了必要的实验室测试,并将这些数据用于GEO-STUDIO程序,以分析大坝的渗流和稳定性。对该水库的最高、中、最低水位进行了渗流分析。此外,还考虑了壳层的渗透性、大坝核心层的存在和厚度、坝后过滤器的布置以及出口梯度等因素。结果表明,通过增加壳层的渗透性,可以减小出口梯度,增加坝体的渗透量。大坝核心层的存在对降低坝体渗流量有显著作用,渗流量减少了(99%)。在水库快速放水后(4 d),安全系数最小值为1.95,说明大坝上游坡面放水时是安全的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance Assessment of Shirin Earth Dam in Iraq Under Various Operational Conditions
Proper dam management should be ensured regularly to avoid breaches and failure. In this study, the finite element method was used to analyse the stability of the Shirin earthen dam under various conditions. The necessary laboratory tests for soils used in the construction of the dam were carried out in the laboratories of the College of the Engineering /University of Tikrit, and these data were employed in the GEO-STUDIO program to analyse the seepage and stability of the dam. The seepage was analysed at three levels of the water lake reservoir including the highest, middle and lowest water levels. In addition, factors such as the permeability of the shell layer, the presence and thickness of the dam’s core layer, the placement of filters at the back of the dam and the exit gradient have been considered. The results have shown that by increasing the permeability of the shell layer, the exit gradient is decreased while the seepage through the dam body is increased. The presence of the dam’s core layer has a significant effect on reducing the amount of seepage through the dam’s body as the amount of seepage is reduced by (99%). Moreover, it was found that the minimum safety factor is 1.95 and it occurs after (4 days) of the rapid emptying of the reservoir, and this indicates that the upstream slope of the dams is safe during water emptying.
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来源期刊
CiteScore
1.50
自引率
0.00%
发文量
56
审稿时长
8 weeks
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