A Practical Design Method for Reducing Postconstruction Settlement of Highway Subgrade Induced by Soil Creep
The postconstruction settlement of the bridge approach is usually uneven, which could create a bump in the roadway. Indeed, this is a typical situation at the end of the bridge approach and requires a solution. One of the main causes of postconstruction settlement is the creep of soil. This paper is...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/4029439 |
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| author | Fei Zhou Tangdai Xia Bingqi Yu Fan Xia Fan Yu |
| author_facet | Fei Zhou Tangdai Xia Bingqi Yu Fan Xia Fan Yu |
| author_sort | Fei Zhou |
| collection | DOAJ |
| description | The postconstruction settlement of the bridge approach is usually uneven, which could create a bump in the roadway. Indeed, this is a typical situation at the end of the bridge approach and requires a solution. One of the main causes of postconstruction settlement is the creep of soil. This paper is aimed at generalizing a new design method for controlling highway postconstruction settlement by replacing subgrade with expanded polystyrene (EPS). In the new method, the creep coefficient can be calculated based on the Yin-Graham EVP model. Thus, the relationship between the overloading ratio (OLR) and overconsolidation ratio (OCR) is obtained. The new method involves five steps: (a) determine the creep coefficient based on the relationship between the creep coefficient and over consolidation ratio, (b) divide the ground into a suitable number of sublayers, (c) select groups of different overloading ratios and then calculate the average values of the additional stress and overconsolidation ratio for each sublayer under different OLRs, (d) calculate the postconstruction settlement under different OLRs, and (e) determine the replacement capacity for different sections. This method can be used for quantitative design according to different requirements of postconstruction settlement of foundation. Taking Huzhou Avenue as an example, the case study illustrates the calculation process of the new method in detail. |
| format | Article |
| id | doaj-art-67c2b9d468554cd99b246cc095b2c505 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-67c2b9d468554cd99b246cc095b2c5052025-02-03T06:06:52ZengWileyGeofluids1468-81232021-01-01202110.1155/2021/4029439A Practical Design Method for Reducing Postconstruction Settlement of Highway Subgrade Induced by Soil CreepFei Zhou0Tangdai Xia1Bingqi Yu2Fan Xia3Fan Yu4Research Center of Coastal and Urban Geotechnical EngineeringResearch Center of Coastal and Urban Geotechnical EngineeringResearch Center of Coastal and Urban Geotechnical EngineeringResearch Center of Coastal and Urban Geotechnical EngineeringZhejiang Provincial Institute of Communications PlanningThe postconstruction settlement of the bridge approach is usually uneven, which could create a bump in the roadway. Indeed, this is a typical situation at the end of the bridge approach and requires a solution. One of the main causes of postconstruction settlement is the creep of soil. This paper is aimed at generalizing a new design method for controlling highway postconstruction settlement by replacing subgrade with expanded polystyrene (EPS). In the new method, the creep coefficient can be calculated based on the Yin-Graham EVP model. Thus, the relationship between the overloading ratio (OLR) and overconsolidation ratio (OCR) is obtained. The new method involves five steps: (a) determine the creep coefficient based on the relationship between the creep coefficient and over consolidation ratio, (b) divide the ground into a suitable number of sublayers, (c) select groups of different overloading ratios and then calculate the average values of the additional stress and overconsolidation ratio for each sublayer under different OLRs, (d) calculate the postconstruction settlement under different OLRs, and (e) determine the replacement capacity for different sections. This method can be used for quantitative design according to different requirements of postconstruction settlement of foundation. Taking Huzhou Avenue as an example, the case study illustrates the calculation process of the new method in detail.http://dx.doi.org/10.1155/2021/4029439 |
| spellingShingle | Fei Zhou Tangdai Xia Bingqi Yu Fan Xia Fan Yu A Practical Design Method for Reducing Postconstruction Settlement of Highway Subgrade Induced by Soil Creep Geofluids |
| title | A Practical Design Method for Reducing Postconstruction Settlement of Highway Subgrade Induced by Soil Creep |
| title_full | A Practical Design Method for Reducing Postconstruction Settlement of Highway Subgrade Induced by Soil Creep |
| title_fullStr | A Practical Design Method for Reducing Postconstruction Settlement of Highway Subgrade Induced by Soil Creep |
| title_full_unstemmed | A Practical Design Method for Reducing Postconstruction Settlement of Highway Subgrade Induced by Soil Creep |
| title_short | A Practical Design Method for Reducing Postconstruction Settlement of Highway Subgrade Induced by Soil Creep |
| title_sort | practical design method for reducing postconstruction settlement of highway subgrade induced by soil creep |
| url | http://dx.doi.org/10.1155/2021/4029439 |
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