稳态条件下圆形桥墩局部冲刷孔尺寸研究

IF 0.8 4区 工程技术 Q4 ENGINEERING, CIVIL Teknik Dergi Pub Date : 2022-03-01 DOI:10.18400/tekderg.704352
Ömer Yavuz Eski, A. Aksoy
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引用次数: 0

摘要

桥墩周围的局部冲刷是桥梁失效的主要原因之一。在本研究中,研究了在不同稳定流速的清水冲刷条件下圆形桥墩周围的冲刷孔尺寸。实验采用四种不同的桥墩直径和七种不同的流速,使用中值直径为1.63 mm、几何标准偏差为1.3的均匀沉积物进行。在每次试验后,确定了冲刷坑的水深。利用文献中的实验结果和实验数据,提出了新的经验公式来估计冲刷坑长度、冲刷坑宽度和冲刷坑体积(V)。实验结果还与以前研究中给出的几个经验方程计算的结果进行了比较。由于缺乏关于冲刷坑尺寸的数据,本研究中提出的实验结果对研究局部冲刷过程的研究人员很有用,并为文献中为数不多的实验数据做出了贡献。
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Investigation of Local Scour Hole Dimensions around Circular Bridge Piers under Steady State Conditions
The local scour around bridge piers is one of the main causes of bridge failures. In this study, scour hole dimensions around circular bridge piers were investigated under clear water scour conditions for various steady flow rates. The experiments were performed with four different bridge pier diameters and seven different flow rates by using uniform sediment with a median diameter of 1.63 mm and geometric standard deviation of 1.3. After each experiments the bathymetry of scour hole was determined. New empirical equations to estimate scour hole length, scour hole width and scour hole volume (V) are proposed by using experimental findings and experimental data available in the literature. The experimental results were also compared with those calculated using several empirical equations given by previous studies. Since there is a lack of data about scour hole dimensions, the experimental findings presented in this study are useful for the researchers investigating the local scour process, and have contributed to the few experimental data in the literature.
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来源期刊
Teknik Dergi
Teknik Dergi 工程技术-工程:土木
自引率
30.80%
发文量
65
审稿时长
>12 weeks
期刊介绍: The scope of Teknik Dergi is naturally confined with the subjects falling in the area of civil engineering. However, the area of civil engineering has recently been significantly enlarged, even the definition of civil engineering has somewhat changed. Half a century ago, engineering was simply defined as “the art of using and converting the natural resources for the benefit of the mankind”. Today, the same objective is expected to be realised (i) by complying with the desire and expectations of the people concerned and (ii) without wasting the resources and within the sustainability principles. This change has required an interaction between engineering and social and administrative sciences. Some subjects at the borderline between civil engineering and social and administrative sciences have consequently been included in the area of civil engineering. Teknik Dergi defines its scope in line with this understanding. However, it requires the papers falling in the borderline to have a significant component of civil engineering.
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