摘要
研究表明,山地城市雨洪与滑坡、泥石流等地质灾害密切相关,而提升雨洪灾害的适灾能力建设已成为应对山地城市次生灾害频发的迫切诉求。以灾害链相关理论为支撑,围绕致灾因子、孕灾环境、承灾体3个灾害链关键要素,分析、归纳山地雨洪的灾害链及其链式的灾害演化关系和灾变路径,并在此基础上提出'灾害链断链'和'城市空间减灾'2个层面的雨洪减灾规划策略,从而达到降低雨洪灾害链频次,减少灾情放大,增大城市安全性的目的;进而以巫山早阳组团城市设计为例,探讨雨洪减灾规划策略的实践应用,以期为山地城市防灾减灾能力建设提供相应的理论指导与实践借鉴。
Studies have shown that rainfall floods are closely related to geological disasters such as landslides and mudslides in mountainous cities.Thus,improving the ability to adapt to rainfall flood disasters has become vital for dealing with the frequent occurrence of secondary disasters in mountainous cities.Based on the disaster chain theory,this paper analyzes and summarizes the disaster chain of mountain rainfall floods,the chain-style disaster evolution relationship,and the disaster path around the three key elements of a disaster chain:disasterinducing factors,disaster-formative environments,and disaster-affected bodies.On this basis,we put forward strategies to reduce rainfall flood-related damages.Our study is based on'disaster chain breakage'and'urban space disaster reduction',to reduce the frequency of rainfall flood disaster chains and disaster amplification,and increase urban safety.Taking the urban design of Zaoyang New District in Wushan County as an example,we investigated the practical application of the strategies for flood prevention and disaster reduction,so as to provide corresponding theoretical guidance and practical reference for the construction of disaster prevention and damage reduction capacity in mountainous cities.
作者
毛华松
张立立
罗评
MAO Huasong;ZHANG Lili;LUO Ping(the School of Architecture and Urban Planning,Chongqing University;Key Laboratory of the Ministry of Education for Mountain Town Construction with New Technology;the Jiuhe Garden Planning and Design Construction(Group)Co.,Ltd.,Chongqing.)
出处
《风景园林》
2019年第7期96-100,共5页
Landscape Architecture
基金
国家自然科学基金(编号51678258)
重庆市博士后科研项目(编号Xm2017186)~~
关键词
风景园林
山地城市
雨洪灾害
断链减灾
适灾空间
landscape architecture
mountainous city
rainfall flood disaster
chain breakage and disaster reduction
disaster adaptation space
