Analysis of Rainfall Infiltration Law in Unsaturated Soil Slope
In the study of unsaturated soil slope stability under rainfall infiltration, it is worth continuing to explore how much rainfall infiltrates into the slope in a rain process, and the amount of rainfall infiltrating into slope is the important factor influencing the stability. Therefore, rainfall in...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/567250 |
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| author | Gui-rong Zhang Ya-jun Qian Zhang-chun Wang Bo Zhao |
| author_facet | Gui-rong Zhang Ya-jun Qian Zhang-chun Wang Bo Zhao |
| author_sort | Gui-rong Zhang |
| collection | DOAJ |
| description | In the study of unsaturated soil slope stability under rainfall infiltration, it is worth continuing to explore how much rainfall infiltrates into the slope in a rain process, and the amount of rainfall infiltrating into slope is the important factor influencing the stability. Therefore, rainfall infiltration capacity is an important issue of unsaturated seepage analysis for slope. On the basis of previous studies, rainfall infiltration law of unsaturated soil slope is analyzed. Considering the characteristics of slope and rainfall, the key factors affecting rainfall infiltration of slope, including hydraulic properties, water storage capacity θs−θr, soil types, rainfall intensities, and antecedent and subsequent infiltration rates on unsaturated soil slope, are discussed by using theory analysis and numerical simulation technology. Based on critical factors changing, this paper presents three calculation models of rainfall infiltrability for unsaturated slope, including (1) infiltration model considering rainfall intensity; (2) effective rainfall model considering antecedent rainfall; (3) infiltration model considering comprehensive factors. Based on the technology of system response, the relationship of rainfall and infiltration is described, and the prototype of regression model of rainfall infiltration is given, in order to determine the amount of rain penetration during a rain process. |
| format | Article |
| id | doaj-art-d5a740963b354e5eaefd12e378bdb938 |
| institution | DOAJ |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-d5a740963b354e5eaefd12e378bdb9382025-08-20T03:19:33ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/567250567250Analysis of Rainfall Infiltration Law in Unsaturated Soil SlopeGui-rong Zhang0Ya-jun Qian1Zhang-chun Wang2Bo Zhao3Geotechnical Engineering Institute of Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaGeotechnical Engineering Institute of Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaGeotechnical Engineering Institute of Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaGeotechnical Engineering Institute of Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaIn the study of unsaturated soil slope stability under rainfall infiltration, it is worth continuing to explore how much rainfall infiltrates into the slope in a rain process, and the amount of rainfall infiltrating into slope is the important factor influencing the stability. Therefore, rainfall infiltration capacity is an important issue of unsaturated seepage analysis for slope. On the basis of previous studies, rainfall infiltration law of unsaturated soil slope is analyzed. Considering the characteristics of slope and rainfall, the key factors affecting rainfall infiltration of slope, including hydraulic properties, water storage capacity θs−θr, soil types, rainfall intensities, and antecedent and subsequent infiltration rates on unsaturated soil slope, are discussed by using theory analysis and numerical simulation technology. Based on critical factors changing, this paper presents three calculation models of rainfall infiltrability for unsaturated slope, including (1) infiltration model considering rainfall intensity; (2) effective rainfall model considering antecedent rainfall; (3) infiltration model considering comprehensive factors. Based on the technology of system response, the relationship of rainfall and infiltration is described, and the prototype of regression model of rainfall infiltration is given, in order to determine the amount of rain penetration during a rain process.http://dx.doi.org/10.1155/2014/567250 |
| spellingShingle | Gui-rong Zhang Ya-jun Qian Zhang-chun Wang Bo Zhao Analysis of Rainfall Infiltration Law in Unsaturated Soil Slope The Scientific World Journal |
| title | Analysis of Rainfall Infiltration Law in Unsaturated Soil Slope |
| title_full | Analysis of Rainfall Infiltration Law in Unsaturated Soil Slope |
| title_fullStr | Analysis of Rainfall Infiltration Law in Unsaturated Soil Slope |
| title_full_unstemmed | Analysis of Rainfall Infiltration Law in Unsaturated Soil Slope |
| title_short | Analysis of Rainfall Infiltration Law in Unsaturated Soil Slope |
| title_sort | analysis of rainfall infiltration law in unsaturated soil slope |
| url | http://dx.doi.org/10.1155/2014/567250 |
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