[1]MA Xing-guan,JI Wen-juan,WANG Meng-qi,et al.Analysis on Critical Parameters of Control Measure of Waterlogging Source in Shenyang City[J].Research of Soil and Water Conservation,2014,21(03):201-207.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 03
Page number:
201-207
Column:
Public date:
2014-06-28
- Title:
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Analysis on Critical Parameters of Control Measure of Waterlogging Source in Shenyang City
- Author(s):
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MA Xing-guan, JI Wen-juan, WANG Meng-qi, JIANG Wei, FU Jin-xiang
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School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China
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- Keywords:
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control measure of waterlogging source; area proportion; depth; storage-infiltration efficiency
- CLC:
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TU991.11+4
- DOI:
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- Abstract:
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Based on the rainfall statistical data from 1975 to 2005 in Shenyang City, design of storm rainfall patterns of the city was established by Keifer&Chu. The relationship between area proportion (f) and storage-infiltration efficiency (N) of low elevation greenbelt was investigated under the condition of constant infiltration rate (K), a serious of the design storm recurrence interval (P) and depth (Δh). The reasonable ranges of the critical parameters, Δh and f, were analyzed. The results showed that the rainfall intensity increases firstly and then decreases with rainfall durations, exhibiting a peak design storm rainfall, where the heaviest rainfall intensity appears at 48 min of rainfall durations. Under the special rainfall intensity, the value of K increases with Δh and f, reflecting more remarkable storage-infiltration performance. In order to ensure a complete infiltration for actual rainfall, the smaller value of K of 1.0×10-6 m/s was selected. In such case, the Δh should be 230~250 mm for residential area with the f of 15%~20%, while it should be 120~250 mm for industrial area with the f of 20%~40%. If the K increases to 5×10-6 m/s by soil improvement, Δh among the range of 100~250 mm can achieve an effective storage and infiltration for 98% of rainfall events in Shenyang City.