利用水动力模型和模糊逻辑评估河流娱乐安全:空间河流娱乐指数方法

IF 2.4 3区 环境科学与生态学 Q2 ENGINEERING, CIVIL
Siyoon Kwon , Il Won Seo , Byunguk Kim , Sung Hyun Jung , Young Do Kim
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引用次数: 0

摘要

随着人们对河流娱乐活动需求的增加,对其安全性进行评估已成为防止事故发生的关键。河流的水力条件对帆船、划桨和划船等水上活动的安全性有着至关重要的影响。由于水力现象的空间变化,可能会出现局部危险区域。这种潜在的风险要求提供有关安全区域的信息。因此,本研究提出了一种空间河流娱乐指数(SRRI),根据水力因素评估河流空间娱乐活动的安全性。我们利用三维水动力模型再现了各种排放条件下水力参数的空间分布,然后利用模糊综合评价(FSE)对这些参数的所有成员度和权重进行整合,从而估算出 SRRI。SRRI 在韩国洛东江-金湖江汇合处的应用表明,根据排水量和形态条件的不同,每个水力参数对安全等级的影响也不同。具体来说,在河道汇合处附近,水流方向会大大降低安全系数,而在洛东江的蜿蜒河段,水深则起着重要作用。在大流量条件下,流速成为一个关键因素,尤其是对于非动力活动(帆船和划桨/涉水)而言。SRRI 表明,由于对排水量变化的高度敏感性,在主流区和河流汇合点附近航行是不安全的。相比之下,划船/涉水和休闲划船对排水量变化的敏感度较低,因此即使在大流量条件下,这些活动也可以部分进行,但蜿蜒河段的深水区除外。这些结果表明,通过提供基于各种水力条件的空间安全信息,SRRI 可以帮助水上娱乐活动使用者安全地从事河流娱乐活动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of river recreation safety using hydrodynamic model and fuzzy logic: A spatial river recreational index approach

As demands for river recreational activities increases, assessing their safety has become essential to prevent accidents. The hydraulic conditions of the river critically influence the safety of in-water activities, such as sailing, paddling, and boating. Localized hazardous areas can emerge due to the spatial variability of hydraulic phenomena. This potential risk necessitates providing information about safe zones. Therefore, this study proposes a spatial river recreational index (SRRI) to assess the safety of river recreational activities over river spaces based on hydraulic factors. We reproduce the spatial distribution of the hydraulic parameters under various discharge conditions using a 3D hydrodynamic model and then estimate the SRRI by integrating all membership degrees and weights of these parameters using fuzzy synthetic evaluation (FSE). The application of the SRRI in the confluence of the Nakdong-Guemho River, South Korea, reveals that each hydraulic parameter contributes differently to safety levels, depending on discharge and morphological conditions. Specifically, the flow direction substantially decreases safety near the river confluence, whereas the water depth plays an important role in the meandering reach of the Nakdong River. Under high-flow conditions, velocity becomes a critical factor, especially for nonpowered activities (sailing and paddling/wading). The SRRI indicates that sailing is unsafe in the main flow zone and near the river confluence due to high sensitivity to discharge changes. In contrast, paddling/wading and leisure boating are less sensitive to discharge changes, allowing these activities to be partly allowable even under high-flow conditions, except in the deep-water zones of meandering reach. These results suggest that the SRRI can assist water recreational activity users in safely engaging in river recreational activities by providing spatial safety information based on various hydraulic conditions.

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来源期刊
Journal of Hydro-environment Research
Journal of Hydro-environment Research ENGINEERING, CIVIL-ENVIRONMENTAL SCIENCES
CiteScore
5.80
自引率
0.00%
发文量
34
审稿时长
98 days
期刊介绍: The journal aims to provide an international platform for the dissemination of research and engineering applications related to water and hydraulic problems in the Asia-Pacific region. The journal provides a wide distribution at affordable subscription rate, as well as a rapid reviewing and publication time. The journal particularly encourages papers from young researchers. Papers that require extensive language editing, qualify for editorial assistance with American Journal Experts, a Language Editing Company that Elsevier recommends. Authors submitting to this journal are entitled to a 10% discount.
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