一种新型的山地海绵城市生物滞留沟结构的雨水下渗
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摘要
提出了一种新型的海绵城市生物滞留沟(以下简称"生物滞留沟")结构,探求了雨水在该结构的下渗机理及雨水在路基中的分布情况。通过物理模型试验和数值分析方法,研究了具有包至卵石层顶的防渗膜的结构形式的生物滞留沟雨水下渗情况。结果表明:该结构形式具有极好的雨水收集效果,具备一定的雨水就地下渗功能,是一种符合海绵城市建设要求的结构形式。研究结果能够为海绵城市生物滞留沟设计提供一定参考。
In order to study the effect of a novel bioretention swale with impermeable membrane covered up to pebble layer,physical model test and numerical analysis were used to investigate the infiltration mechanism of bioretention swale subject to different rain event. The results show that bioretention swale with such design feature has excellent rainwater collecting effect and rainwater can infiltrate into the surrounding soil simultaneously. It is concluded that bioretention swale with such design feature to be an ideal component that meets the requirements of sponge city construction and can provide a certain design reference in the sponge city.
In order to study the effect of a novel bioretention swale with impermeable membrane covered up to pebble layer,physical model test and numerical analysis were used to investigate the infiltration mechanism of bioretention swale subject to different rain event. The results show that bioretention swale with such design feature has excellent rainwater collecting effect and rainwater can infiltrate into the surrounding soil simultaneously. It is concluded that bioretention swale with such design feature to be an ideal component that meets the requirements of sponge city construction and can provide a certain design reference in the sponge city.
引文
1尹海龙,解铭,徐祖信,等.基于动态渗透的雨水塘下渗设计及运行方法[J].同济大学学报(自然科学版),2015,43(5):729-735Yin Hailong,Xie Ming,Xu Zuxin,et al. Method for design and operation of rainfall infiltration pond based on dynamic seepage coefficient[J]. Journal of Tongji University(Natural Science),2015,43(5):729-735
2 邢国平,孙姣,董岩,等.城市内涝防治措施的转变及启示——由“排”到“蓄”再到“渗”.安全与环境学报,2014,14(5):141-145Xing Guoping,Sun Jiao,Dong Yan,et al. Change and revelation of urban waterlogging control measures—from drainage to storage and then to infiltration[J]. Journal of Safety and Environment,2014,14(5):141-145
3 龚应安,陈建刚,张书函,等.城市小区绿地雨水下渗后收集利用技术研究[J].中国给水排水,2012,28(9):62-65Gong Yingan,Chen Jiangang,Zhang Shuhan,et al. Harvesting of infiltrated rainwater into green spaces in urban residential areas[J].China Water&Wastewater,2012,28(9):62-65
4 朱贵良,王浙彬,王炳飞,等.基于城市雨水资源化的截污下渗系统[J].水利学报,2003(9):71-76Zhu Guiliang,Wang Zhebin,Wang Bingfei,et al. Waste water cutoff and seepage system of rainwater in urban area[J]. Journal of Hydraulic Engineering. 2003(9):71-76
5 包承纲.非饱和土的性状及膨胀土边坡稳定问题[J].岩土工程学报,2004,26(1):5-19Bao Chenggang. Behavior of unsaturated soil and stability of expansive soil slope[J]. Chinese Journal of Geotechnical Engineering.2004,26(1):5-19
6 谭新,陈善雄,杨明.降雨条件下土坡饱和-非饱和渗流分析[J].岩土力学,2003,24(3):69-72Tan Xin,Chen Shanxiong,Yang Ming. Saturated-unsaturated seepage analysis of slope under rainfall[J]. Rock and Soil Mechanics,2003,24(3):69-72
7 程勇刚,常晓林,李典庆,等.非饱和渗流问题的自适应欠松弛变量变换方法[J].岩土力学,2012,33(9):301-306,312Cheng Yonggang,Chang Xiaolin,Li Dianqing,et al. Unsaturated seepage analysis using temporal adaptive transformation method with under-relaxation[J]. Rock and Soil Mechanics,2012,33(9):301-306,312
8 刘永贵,王有昌,廖春芳.降雨引起半填半挖路基水分场与差异沉降变化的数值模拟[J].中外公路,2010,30(4):57-61Liu Yonggui,Wang Youchang,Liao Chunfang. Numerical simulation of water field and differential settlement of semi-filled and half-cut roadbed caused by rainfall[J]. Journal of China&Foreign Highway,2010,30(4):57-61
9 Gavin K,Xue J. A simple method to analyze infiltration into unsaturated soil slopes[J]. Computers&Geotechnics,2008,35(2):223-230
2 邢国平,孙姣,董岩,等.城市内涝防治措施的转变及启示——由“排”到“蓄”再到“渗”.安全与环境学报,2014,14(5):141-145Xing Guoping,Sun Jiao,Dong Yan,et al. Change and revelation of urban waterlogging control measures—from drainage to storage and then to infiltration[J]. Journal of Safety and Environment,2014,14(5):141-145
3 龚应安,陈建刚,张书函,等.城市小区绿地雨水下渗后收集利用技术研究[J].中国给水排水,2012,28(9):62-65Gong Yingan,Chen Jiangang,Zhang Shuhan,et al. Harvesting of infiltrated rainwater into green spaces in urban residential areas[J].China Water&Wastewater,2012,28(9):62-65
4 朱贵良,王浙彬,王炳飞,等.基于城市雨水资源化的截污下渗系统[J].水利学报,2003(9):71-76Zhu Guiliang,Wang Zhebin,Wang Bingfei,et al. Waste water cutoff and seepage system of rainwater in urban area[J]. Journal of Hydraulic Engineering. 2003(9):71-76
5 包承纲.非饱和土的性状及膨胀土边坡稳定问题[J].岩土工程学报,2004,26(1):5-19Bao Chenggang. Behavior of unsaturated soil and stability of expansive soil slope[J]. Chinese Journal of Geotechnical Engineering.2004,26(1):5-19
6 谭新,陈善雄,杨明.降雨条件下土坡饱和-非饱和渗流分析[J].岩土力学,2003,24(3):69-72Tan Xin,Chen Shanxiong,Yang Ming. Saturated-unsaturated seepage analysis of slope under rainfall[J]. Rock and Soil Mechanics,2003,24(3):69-72
7 程勇刚,常晓林,李典庆,等.非饱和渗流问题的自适应欠松弛变量变换方法[J].岩土力学,2012,33(9):301-306,312Cheng Yonggang,Chang Xiaolin,Li Dianqing,et al. Unsaturated seepage analysis using temporal adaptive transformation method with under-relaxation[J]. Rock and Soil Mechanics,2012,33(9):301-306,312
8 刘永贵,王有昌,廖春芳.降雨引起半填半挖路基水分场与差异沉降变化的数值模拟[J].中外公路,2010,30(4):57-61Liu Yonggui,Wang Youchang,Liao Chunfang. Numerical simulation of water field and differential settlement of semi-filled and half-cut roadbed caused by rainfall[J]. Journal of China&Foreign Highway,2010,30(4):57-61
9 Gavin K,Xue J. A simple method to analyze infiltration into unsaturated soil slopes[J]. Computers&Geotechnics,2008,35(2):223-230