基于区域排水模型的地下空间内涝危险性评估

王渲 刘柳 方正

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中国农村水利水电 ›› 2018 ›› (1) : 71-74.
水环境与水生态

基于区域排水模型的地下空间内涝危险性评估

  • 王渲1,刘柳1,方正2
作者信息 +

Inundation Risk Assessment of Underground Space Based on Regional Drainage Model

  • WANG Xuan1,LIU Liu1,FANG Zheng2
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摘要

极端降雨及城市硬化率过高导致近年城市内涝频发,地下空间在抵御内涝时处于劣势。现有针对地下空间内涝的研究设计多采用单一的求解水动力学模型方法来模拟地下空间雨水入侵特性,极少考虑区域雨水产汇流过程。为预测不同降雨强度下地下空间的内涝危险性,提出将区域排水系统纳入地下空间内涝计算模型,详细介绍了雨水产汇流及侵入地下空间的水文水力学模型计算原理。以城市下穿隧道为例,运用该模型评估隧道在不同降雨强度下的内涝危险性,可为防涝管理及应急救援提供依据。

Abstract

Extreme rainfall and high urban hardening rate have led to frequent urban inundation in recent years. Nevertheless,underground space has disadvantages against the inundation. The existing research on underground space inundation is chiefly targeted at hydrodynamic characteristics of rainwater intrusion into underground space,which rarely takes the regional runoff and confluence process into consideration. In order to predict the risk of inundation in underground space under different rainfall intensities,regional drainage model is put into the calculation model of inundation in underground space. In addition,the runoff and confluence and the calculation principle of hydrological and hydraulic model in underground space is introduced in detail. Taking the tunnel as an example,this model can be used to evaluate the risk of inundation under different rainfall intensities,which can provide a basis for inundation management and emergency rescue. 

关键词

城市内涝 / 地下空间 / 区域排水模型 / 危险性评估

Key words

urban inundation / underground space / regional drainage model / risk assessment

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导出引用
王渲 刘柳 方正. 基于区域排水模型的地下空间内涝危险性评估[J].中国农村水利水电, 2018(1): 71-74
WANG Xuan, LIU Liu, FANG Zheng. Inundation Risk Assessment of Underground Space Based on Regional Drainage Model[J].China Rural Water and Hydropower, 2018(1): 71-74

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