[1]刘志峰,陈 晨.基于SWMM的大型地下建筑绿色屋顶低影响开发应用研究[J].南京林业大学学报(自然科学版),2018,42(06):165-173.[doi:10.3969/j.issn.1000-2006.201808025]
 LIU Zhifeng,CHEN Chen.A study on the application of low impact development of green roof in large underground buildings based on SWMM[J].Journal of Nanjing Forestry University(Natural Science Edition),2018,42(06):165-173.[doi:10.3969/j.issn.1000-2006.201808025]
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基于SWMM的大型地下建筑绿色屋顶低影响开发应用研究
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
42
期数:
2018年06期
页码:
165-173
栏目:
研究论文
出版日期:
2018-12-15

文章信息/Info

Title:
A study on the application of low impact development of green roof in large underground buildings based on SWMM
作者:
刘志峰1陈 晨2
(1.金陵科技学院建筑工程学院,江苏 南京 211169; 2.河海大学土木与交通学院,江苏 南京 210098)
Author(s):
LIU Zhifeng1CHEN Chen2
(1.College of Architectural Engineering, Jinling Institute of Technology, Nanjing 211169, China; 2. College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China)
关键词:
地下建筑 低影响开发 绿色屋顶 绿色屋顶率 土体厚度 土壤孔隙率 暴雨洪水管理模型(SWMM)
Keywords:
underground building low impact development green roof the green roof ratio soil thickness soil porosity storm water management model(SWMM)
分类号:
TU93
DOI:
10.3969/j.issn.1000-2006.201808025
文献标志码:
A
摘要:
【目的】探寻海绵城市建设中大型地下建筑绿色屋顶蓄截雨水和减缓暴雨径流的调控依据与低影响开发应用思路。【方法】基于定性分析与定量计算相结合的方法,梳理了大型地下建筑绿色屋顶径流调控系统的核心影响因子并给出开发应用研究的思路,借助暴雨洪水管理模型(SWMM)软件建模,通过点式案例量化分析了不确定因子的调控效应。【结果】绿色屋顶率对径流调控具有决定作用,应对短期、中短期和中长期暴雨强度设计的临界指标分别为40%、50%和60%。土体厚度对短期暴雨灾害设计的径流削减效应更显著,该数值的增加会在一定程度上削减径流,但1年一遇与多年一遇暴雨强度设计对应的拐点数值存在差异,分别为300 mm和400 mm。土壤孔隙率对径流削减影响甚微,但在开发应用中应注意规避径流削减效应最低的土壤孔隙率(0.30)。【结论】种植植被、覆土属性和降雨强度是影响地下建筑绿色屋顶径流调控效果的主要因素,在实际开发应用中应妥善配置可控因子的安全设计及不确定因子的率定参数,以此作为提升大型地下建筑绿色屋顶径流调控性能的有效性和低影响开发应用实践的参考依据。
Abstract:
【Objective】This paper explored regulations and low impact development ideas, which storage and intercept rainwater and retard storm runoff in the green roofs of large-scale underground buildings of sponge city.【Method】Based on the combination of qualitative analysis and quantitative calculation, the key influencing factors of green roof runoff control system were combed and the method of development and application is given. With the help of storm water ma-nagement model(SWMM)soft, the influence of the rainstorm intensity, green roof ratio, soil thickness and soil porosity were studied.【Result】The green roof ratio plays an important role in runoff regulation. The critical parameters for short-term, medium-short-term and medium-long-term rainstorm intensity design are 40%, 50% and 60%, respectively. The effect of soil thickness on runoff reduction of short-term rainstorm disaster design is more significant. The increase of the soil thickness will bring about a certain degree of runoff reduction. However, the thickness of soil at inflection point corresponding to the design of rainstorm intensity once a year and many within a year is different, which is 300 mm and 400 mm, respectively. Soil porosity has little effect on runoff reduction, but when the soil porosity is 0.30, the lowest effect of runoff reduction, it should be avoided in development and application. 【Conclusion】Planting vegetation, soil property and rainfall intensity are the main factors affecting the runoff regulation on green roofs. Safety design of controllable factors and calibration parameters of uncertain factors should be properly allocated in practical development and application, it can be used in the structure design of the in the green roofs of large-scale underground buildings to consider loading design, and it also can be considered as a reference basis to improve the effectiveness of runoff regulation on green roofs and to reduce the impact on development and application practice.

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备注/Memo

备注/Memo:
收稿日期:2018-08-13 修回日期:2018-10-01
基金项目:国家自然科学基金项目(51708265); 江苏省文化科研课题(17ZC02)
第一作者:刘志峰(lzf@jit.edu.cn),副教授,硕士。
更新日期/Last Update: 2018-11-30