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Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses

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  • Xiaochao Su

    (Underground Space Research Center, Army engineering university of PLA, Nanjing 210007, China
    State Key Laboratory of Explosion & Impact and Disaster Prevention & Mitigation, Army Engineering University of PLA, Nanjing 210007, China)

  • Hao Cai

    (State Key Laboratory of Explosion & Impact and Disaster Prevention & Mitigation, Army Engineering University of PLA, Nanjing 210007, China)

  • Zhilong Chen

    (Underground Space Research Center, Army engineering university of PLA, Nanjing 210007, China
    State Key Laboratory of Explosion & Impact and Disaster Prevention & Mitigation, Army Engineering University of PLA, Nanjing 210007, China)

  • Qilin Feng

    (State Key Laboratory of Explosion & Impact and Disaster Prevention & Mitigation, Army Engineering University of PLA, Nanjing 210007, China)

Abstract

In the underground space development of residential areas, outdoor thermal environments at the pedestrian level greatly depend on the ground greening configuration, which is in turn affected by the overburden thickness of the underground space (OTUS). However, few studies have considered the effects of OTUS on the ground greening configuration and the further effects of the ground greening configuration on the outdoor thermal environment. This study aimed to provide insights into the design of OTUS for improving outdoor thermal environments. Two residential areas with row and enclosed layouts in Nanjing, China, were numerically studied using the computational fluid dynamics (CFD) simulation software ENVI-met. Outdoor thermal environments in the two residential areas, which had the same greening coverage rate, were simulated under different OTUSs and ground green configurations. The results indicate that to create a comfortable outdoor thermal environment, the OTUS should be designed to satisfy the requirement for planting small trees. If this requirement cannot be adequately satisfied, individuals can also set up tree wells or add soil on top of underground structures to plant small trees, and establish an OTUS that can satisfy the requirement of planting large shrubs in other areas.

Suggested Citation

  • Xiaochao Su & Hao Cai & Zhilong Chen & Qilin Feng, 2017. "Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses," Sustainability, MDPI, vol. 9(9), pages 1-19, September.
    • Handle: RePEc:gam:jsusta:v:9:y:2017:i:9:p:1656-:d:112363
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    References listed on IDEAS

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    1. Kong, Fanhua & Sun, Changfeng & Liu, Fengfeng & Yin, Haiwei & Jiang, Fei & Pu, Yingxia & Cavan, Gina & Skelhorn, Cynthia & Middel, Ariane & Dronova, Iryna, 2016. "Energy saving potential of fragmented green spaces due to their temperature regulating ecosystem services in the summer," Applied Energy, Elsevier, vol. 183(C), pages 1428-1440.
    2. Xiaobin Yang & Zhilong Chen & Hao Cai & Linjian Ma, 2014. "A Framework for Assessment of the Influence of China’s Urban Underground Space Developments on the Urban Microclimate," Sustainability, MDPI, vol. 6(12), pages 1-31, November.
    3. Hong, Bo & Lin, Borong, 2015. "Numerical studies of the outdoor wind environment and thermal comfort at pedestrian level in housing blocks with different building layout patterns and trees arrangement," Renewable Energy, Elsevier, vol. 73(C), pages 18-27.
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    Cited by:

    1. Xiaoling Cheng & Xudong Zhao & Qiaoyi He & Xiaochao Su, 2022. "The Negative Influence of Urban Underground Space Development on Urban Microclimate," Sustainability, MDPI, vol. 14(16), pages 1-17, August.
    2. Heli Lu & Menglin Xia & Ziyuan Qin & Siqi Lu & Ruimin Guan & Yuna Yang & Changhong Miao & Taizheng Chen, 2022. "The Built Environment Assessment of Residential Areas in Wuhan during the Coronavirus Disease (COVID-19) Outbreak," IJERPH, MDPI, vol. 19(13), pages 1-20, June.
    3. Xiaochao Su & Zhilong Chen & Xudong Zhao & Xiaobin Yang & Qilin Feng & Haizhou Tang, 2018. "Optimization Design of Underground Space Overburden Thickness in a Residential Area Concerning Outdoor Thermal Environment Evaluation," Sustainability, MDPI, vol. 10(9), pages 1-15, September.

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