STUDY ON INFILTRATION CHARACTERISTICS OF SOIL UNDER NATURAL DRYING PROCESS CONDITIONS

LIU Wei-zong; WANG Wen-hai; LI Jun-qi; JIA Gao-feng; WANG Hao-ran

doi:10.13205/j.hjgc.202004013

Volume 38 Issue 4

Apr. 2020

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(4): 72-76

SU Hao, FENG Li, ZHANG Liqiu. INFLUENCE OF RESIDUAL NANOPARTICLES IN MUNICIPAL SEWAGE ON FORMATION OF CHLORINATION DISINFECTION BY-PRODUCTS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(8): 33-40. doi: 10.13205/j.hjgc.202308005

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LIU Wei-zong, WANG Wen-hai, LI Jun-qi, JIA Gao-feng, WANG Hao-ran. STUDY ON INFILTRATION CHARACTERISTICS OF SOIL UNDER NATURAL DRYING PROCESS CONDITIONS[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(4): 72-76. doi: 10.13205/j.hjgc.202004013

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STUDY ON INFILTRATION CHARACTERISTICS OF SOIL UNDER NATURAL DRYING PROCESS CONDITIONS

doi: 10.13205/j.hjgc.202004013

1. Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. Beijing Advanced Innovation Center for Future Urban Design, Beijing 10044, China

Received Date: 2020-02-17

Abstract

Abstract

Bio-retention facilities, such as green space and rain garden participate in the natural infiltration and regulation of rainwater and surface runoff, and are important parts of the sponge city. The infiltration of rainwater plays an important role in the reduction of rainwater discharge quantity. At present, the design of soil seepage is mainly based on Darcy's law, but Darcy's law does not apply to the unsaturated soil. In the laboratory, the water head penetration test of different initial soil moisture content of the same soil was carried out. The change of initial soil moisture content was obtained by long-term natural water loss. A function relating water head penetration velocity and time was obtained and compared with the calculation result of Darcy's law. The results may provide reference for calculation in future design of soil infiltration in sponge city.
- infiltration velocity,
- natural drying,
- Darcy's law,
- sponge city

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通讯作者: 陈斌, bchen63@163.com

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STUDY ON INFILTRATION CHARACTERISTICS OF SOIL UNDER NATURAL DRYING PROCESS CONDITIONS

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STUDY ON INFILTRATION CHARACTERISTICS OF SOIL UNDER NATURAL DRYING PROCESS CONDITIONS

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