基于低影响开发理念的杭州未来科技城雨水控制利用研究

发布时间：2018-05-14 15:26

本文选题：低影响开发 + 雨水控制利用　；参考：《浙江大学》2015年硕士论文

【摘要】：城市快速扩张过程中产生了一系列环境污染问题,如空气污染、水污染、土壤污染等,人们也越来越关注此类问题,城市发展也面临巨大压力,低效化、粗放型的发展模式逐步被摈弃。在此大背景下,2014年3月《国家新型城镇化规划(2014—2020)》应势出台,明确指出新时期必须转变发展观念,由以规模扩张为主的城镇化转入以质量提升为主的新进程,注重城镇化与环境保护、资源节约等方面协调可持续发展。全面推广和应用低影响开发建设模式是促进新型城镇化发展的重要措施手段,是保障、支持城市持续、健康、快速发展的有效途径。低影响开发(Low Impact Development,LID)是一种基于新技术的创新型雨水综合控制利用体系,强调通过分散且小规模的控制措施从源头对雨水径流进行充分控制,通过“渗、蓄、用、滞、调、排”等方式方法模拟天然水循环过程,促进雨水就地滞留及快速下渗,以降低雨水径流量的产生。LID就是通过维持或再现开发前的自然生态条件,最大限度减少与降低土地开发利用对周边原生态自然环境的影响。本文以杭州未来科技城为研究对象,重点研究城市开发建设中低影响开发技术对地面水文循环的恢复作用。首先对低影响开发相关文献资料进行收集整理,分析汇总了国内外应用低影响开发的相关案例,并运用改进的Rational方法计算雨水径流量。同时为分析低影响开发技术对雨水的消减效果,研究将地块建设分为传统开发模式和低影响开发模式两类,并进一步分析得出在前者模式下,地块综合雨量径流系数将由开发前的0.4增加到0.64,径流量总量增加60%,若发生250mm以上强降雨,区域内整体水域的水位上升幅度将超过3米,内涝风险大幅上升。本研究就在此基础上探讨低影响开发理念下的杭州未来科技城雨水控制利用措施和管理体系。通过杭州未来科技城低影响开发实践,为推广和应用相关技术积累经验,也为进一步丰富我国新型城镇化建设过程中雨水控制利用的理论和方法提供基础支撑。
[Abstract]:A series of environmental pollution problems, such as air pollution, water pollution, soil pollution and so on, have emerged in the process of rapid urban expansion. People are also paying more and more attention to these problems, and urban development is also facing great pressure and low efficiency. The extensive development model was gradually abandoned. Against this background, in March 2014, the National New urbanization Plan 2014-2020 was issued, which clearly pointed out that the concept of development must be changed in the new period, and the urbanization based on scale expansion should be transformed into a new process of quality improvement. Pay attention to urbanization and environmental protection, conservation of resources and other aspects of coordinated and sustainable development. The comprehensive promotion and application of low-impact development and construction mode is an important measure to promote the development of new urbanization. It is an effective way to guarantee and support the sustained, healthy and rapid development of the city. Low Impact Development (id) is an innovative integrated control and utilization system for Rain Water based on new technology. It emphasizes that the runoff of Rain Water can be fully controlled from the source through decentralized and small-scale control measures, and through "seepage, storage, use, lag, adjustment," In order to reduce the generation of Rain Water runoff, the natural ecological conditions before development can be maintained or reproduced by means of simulating the natural water circulation process and promoting the local retention and rapid infiltration of Rain Water, so as to reduce the production of Rain Water runoff. To minimize and reduce the impact of land development and utilization on the surrounding ecological environment. In this paper, the future science and technology city of Hangzhou is taken as the research object, focusing on the restoration of surface hydrological cycle by the low-impact development technology in urban development and construction. First of all, the paper collects and collates the relevant literature of low-impact development, analyzes and summarizes the relevant cases of low-impact development at home and abroad, and calculates the Rain Water runoff by using the improved Rational method. At the same time, in order to analyze the effect of low impact development technology on Rain Water, land block construction is divided into two types: traditional development mode and low impact development mode. The comprehensive rainfall runoff coefficient will increase from 0.4 before development to 0.64, and the total runoff will increase by 60 percent. If strong rainfall occurs above 250mm, the water level in the whole area will rise by more than 3 meters, and the risk of waterlogging will rise significantly. On this basis, the paper discusses the control and utilization measures and management system of Rain Water in Hangzhou Science and Technology City under the concept of low impact development. Through the low-impact development practice of Hangzhou Science and Technology City in the future, it can accumulate experience for popularizing and applying related technology, and also provide basic support for further enriching the theory and method of Rain Water control and utilization in the process of new urbanization construction in China.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TV213.9

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