An Operational Solution to Overcome the Very Poor Subgrade Soil Condition of the Azadegan Freeway
Poor subgrade soil condition which is very sensitive to moisture presents a construction challenge for all pavement engineers. One of the case histories which became a dilemma for the Azadegan freeway in Tehran is the presence of waste material in subgrade soil. This paper discusses the site investi...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Published: |
Research Publishing Services
2012
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/23053 |
| _version_ | 1848751044036657152 |
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| author | Asadi, Hossein Ghadimi, Behzad Nikraz, Hamid |
| author2 | Vanissom Vimonsatit |
| author_facet | Vanissom Vimonsatit Asadi, Hossein Ghadimi, Behzad Nikraz, Hamid |
| author_sort | Asadi, Hossein |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Poor subgrade soil condition which is very sensitive to moisture presents a construction challenge for all pavement engineers. One of the case histories which became a dilemma for the Azadegan freeway in Tehran is the presence of waste material in subgrade soil. This paper discusses the site investigation to gather some useful information about the principal causes of these problems and deals with some in-depth Laboratory tests which have been done in the soil and asphalt laboratory of Tehran municipality. The pavement condition index known as PCI has been calculated to address all the deteriorations and causes to make a good decision. After analyzing all the gathered data, several methods has been discussed, for example, deep mixing, short concrete piles, shredded tires, and injection. Finally based on the lack of facilities and budget shortage, a retaining wall with geogrids has been chosen for this very special case which is right now under traffic flow. |
| first_indexed | 2025-11-14T07:46:28Z |
| format | Conference Paper |
| id | curtin-20.500.11937-23053 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:46:28Z |
| publishDate | 2012 |
| publisher | Research Publishing Services |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-230532023-02-02T07:57:40Z An Operational Solution to Overcome the Very Poor Subgrade Soil Condition of the Azadegan Freeway Asadi, Hossein Ghadimi, Behzad Nikraz, Hamid Vanissom Vimonsatit Amarjit Singh Siamak Yazdani Waste material Subgrade Pavement condition index Retaining wall Poor subgrade soil condition which is very sensitive to moisture presents a construction challenge for all pavement engineers. One of the case histories which became a dilemma for the Azadegan freeway in Tehran is the presence of waste material in subgrade soil. This paper discusses the site investigation to gather some useful information about the principal causes of these problems and deals with some in-depth Laboratory tests which have been done in the soil and asphalt laboratory of Tehran municipality. The pavement condition index known as PCI has been calculated to address all the deteriorations and causes to make a good decision. After analyzing all the gathered data, several methods has been discussed, for example, deep mixing, short concrete piles, shredded tires, and injection. Finally based on the lack of facilities and budget shortage, a retaining wall with geogrids has been chosen for this very special case which is right now under traffic flow. 2012 Conference Paper http://hdl.handle.net/20.500.11937/23053 10.3850/978-981-08-7920-4_GFE-19-0453 Research Publishing Services restricted |
| spellingShingle | Waste material Subgrade Pavement condition index Retaining wall Asadi, Hossein Ghadimi, Behzad Nikraz, Hamid An Operational Solution to Overcome the Very Poor Subgrade Soil Condition of the Azadegan Freeway |
| title | An Operational Solution to Overcome the Very Poor Subgrade Soil Condition of the Azadegan Freeway |
| title_full | An Operational Solution to Overcome the Very Poor Subgrade Soil Condition of the Azadegan Freeway |
| title_fullStr | An Operational Solution to Overcome the Very Poor Subgrade Soil Condition of the Azadegan Freeway |
| title_full_unstemmed | An Operational Solution to Overcome the Very Poor Subgrade Soil Condition of the Azadegan Freeway |
| title_short | An Operational Solution to Overcome the Very Poor Subgrade Soil Condition of the Azadegan Freeway |
| title_sort | operational solution to overcome the very poor subgrade soil condition of the azadegan freeway |
| topic | Waste material Subgrade Pavement condition index Retaining wall |
| url | http://hdl.handle.net/20.500.11937/23053 |