The Underground Sewer Drainage Design Analysis of Highway Subgrade Under Evaporation

According to the water balance principle, the expression of the phreatic table is established by considering evaporation and considering evaporation & drainage respectively. The law of phreatic table variation under the combined effects of considering evaporation & drainage is obtained. Based on New...

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Veröffentlicht in:Shanghai jiao tong da xue xue bao 2013-06, Vol.18 (3), p.289-292
Hauptverfasser: Liu, Jie, Yao, Hai-lin, Lu, Zheng, You, Hui-jie, Duan, Jian-xin
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container_end_page 292
container_issue 3
container_start_page 289
container_title Shanghai jiao tong da xue xue bao
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creator Liu, Jie
Yao, Hai-lin
Lu, Zheng
You, Hui-jie
Duan, Jian-xin
description According to the water balance principle, the expression of the phreatic table is established by considering evaporation and considering evaporation & drainage respectively. The law of phreatic table variation under the combined effects of considering evaporation & drainage is obtained. Based on Newton-Raphson iterarive method, calculation and analysis programs are done to solve the first order implicit differential equation of the sewer drainage calculation considering phreatic evaporation. The calculation results show: after considering phreatic evaporation, in the need of reducing the same height of phreatic, the sewer spacing is appropriately larger than the case which didn't consider the affection of phreatic evaporation; the phreatic drop speed in both effects of evaporation and drainage is faster than the case of just considering the drainage effect. Phreatic evaporation has a great influence to the subgrade sewer distance, phreatic evaporation needs to be considered in the subgrade drainage design.
doi_str_mv 10.1007/s12204-013-1396-z
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Shanghai Jiaotong Univ. (Sci.)</stitle><addtitle>Journal of Shanghai Jiaotong university</addtitle><date>2013-06</date><risdate>2013</risdate><volume>18</volume><issue>3</issue><spage>289</spage><epage>292</epage><pages>289-292</pages><issn>1007-1172</issn><eissn>1995-8188</eissn><abstract>According to the water balance principle, the expression of the phreatic table is established by considering evaporation and considering evaporation & drainage respectively. The law of phreatic table variation under the combined effects of considering evaporation & drainage is obtained. Based on Newton-Raphson iterarive method, calculation and analysis programs are done to solve the first order implicit differential equation of the sewer drainage calculation considering phreatic evaporation. 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1995-8188
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source Alma/SFX Local Collection; SpringerLink Journals - AutoHoldings
subjects Architecture
Computer Science
Design engineering
Differential equations
Drainage
Electrical Engineering
Engineering
Evaporation
Life Sciences
Materials Science
Mathematical analysis
Sewers
Tables (data)
Water balance
整车设计
汽车动力学
汽车工程
汽车理论
title The Underground Sewer Drainage Design Analysis of Highway Subgrade Under Evaporation
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