Study On The Construction Of Disaster Prevention Park In Plain City

China covers a vast territory with complex and diverse terrain,among which the mountain covers the largest area of 33% and the plain covers only 12%.With the acceleration of urbanization,the population density and building density of cities are increasing.Because of the large population in plain cities,the contradiction between people and land in plain areas is prominent.In order to improve people’s living environment,large-scale urban construction has been carried out in plain areas,which has destroyed the original ecological system and led to the fragile ecological environment of plain cities.The frequent occurrence of natural disasters and man-made disasters seriously threaten people’s life and property safety.Disaster prevention park,as a type of green space that can not only undertake recreational activities of surrounding residents in peacetime,but also provide emergency refuge and rescue after disasters,has attracted more and more people’s attention.Developed countries pay more and more attention to the construction of disaster prevention parks,and their construction systems are more and more perfect,but Chinese construction and research in this area are relatively backward.Firstly,this paper collects and collates domestic and foreign literature and related theories on disaster prevention park construction,analyzes the urban characteristics and disaster types of plain cities,and summarizes the differences between them and mountain cities.According to the main safety evaluation content of disaster prevention park in "Disaster Prevention Park Planning and Construction Effect Evaluation Standard" proposed by Japan,the characteristics of disaster prevention park in plain city are summarized.Secondly,taking the main urban area of Zhengzhou as an example,this paper conducts field investigation and research on 5 parks in the main urban area of Zhengzhou,and then makes interpretation and safety evaluation on them.From the site environment and safety of refuge;(b)The size and accessibility of parks and emergency shelters;Completeness of emergency shelter and rescue functions;This paper summarizes the problems existing in disaster prevention parks in the main urban area of Zhengzhou from four aspects,discusses and studies the problems,and puts forward relevant strategies to solve the problems.Through investigation,it is known that there are mainly the following problems in disaster prevention parks that have been built in Zhengzhou City:(1)The number of disaster prevention parks in Zhengzhou is too small and the distribution is uneven,which fails to form an effective emergency refuge system;(2)The emergency support and rescue functional areas of some disaster prevention parks are missing,which cannot effectively carry out rescue and support activities in disaster;(3)the emergency infrastructure of some parks is missing,aging or scrapped;(4)Part of the disaster prevention park from the old park upgrading,the original site structure and landscape layout is not suitable for use as a disaster prevention park(5)the newly built disaster prevention park has better disaster prevention and emergency capacity,but the park is not high ornamental park disaster prevention and emergency function did not form effective publicity,The staff in the park and the surrounding residents do not understand the distribution of emergency shelter infrastructure.Finally,combined with the above theories and problems found,according to the planning standards of the General Plan of Land Use of Zhengzhou(2006-2020),Greentown Park was selected for the planning and design of disaster prevention park in Zhengzhou.The park covers a total area of 16.52 hectares,including 10.6 hectares of green area,1.3 hectares of water area,and 4.62 hectares of roads and hard paving.By using the landscape structure of "One belt,three rings,eight districts and multiple nodes" and the emergency rescue mode of "independent operation and mutual cooperation",the Greentown Park will be built into a Class I disaster prevention park integrating viewing,entertainment and emergency relief.In the planning and design of the park,the ornamental value is fully considered.There are a total of 18 types of landscape nodes in the park.In order to ensure its disaster prevention and rescue capability,19 emergency rescue support areas equipped with basic emergency facilities have been set up throughout the park.The park after the completion of the construction of the effective shelter area of about 114,000 square meters;Per capita refuge area ≥3.5 square meters;At the same time,it can provide emergency shelter for32,500 people.