WANG She-ping,WANG Zi-jian,ZHANG Zhi-qiang,et al.Lateral Anti-seepage Effect of Vertical Soil Sand Layer in Sunken Lawn[J].China Water & Wastewater,2021,37(9 9):116-121.
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Lateral Anti-seepage Effect of Vertical Soil Sand Layer in Sunken Lawn

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第37卷 Number: 9 9 Page: 116-121 Column: Date of publication: 2021-05-01
Author(s):
WANG She-ping1; 2; WANG Zi-jian1; ZHANG Zhi-qiang1; XING Yi1; DING Yan-ping3; LU Jin-suo1
(1. School of Environment and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 2. Xi’an Municipal Design and Research Institute Co. Ltd., Xi’an 710068, China; 3. School of Management, Xi’an University of Architecture and Technology, Xi’an 710055, China)
Keywords:
sunken lawn; soil sand layer; wet front; water content of soil; HYDRUS-2D software
Abstract:
Based on determination of soil physical parameters and analysis of rainfall data in a city, HYDRUS-2D software was applied to simulate the water seepage process of sunken lawns around the building, and the lateral impermeability of the vertical soil sand layer with the thickness of 30-60 cm and the same depth as the building foundation in the sunken lawn was discussed. On the side of the soil sand layer, the wetting front migration distance was reduced by an average of 59.1%, the water content of the observation point after the sand layer was reduced by 45.5%, which could avoid the collapsible harm of the loess around the foundation of the building.
Last Update: 2021-05-01