A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Field Investigation of Geosynthetics Used for Subgrade Stabilization, Summary Report
Roadways are commonly constructed on weak native soil deposits. When excavation and replacement of these soils I not cost effective, soil stabilization may be necessary to provide a working platform so that the base course gravel layer can be properly constructed and overall rutting reduced. Geosynthetics are planar polymeric materials that have been extensively used in these situations (i.e., subgrade stabilization) to reinforce and/or separate the surrounding soils. Subgrade stabilization is typically applicable for unpaved temporary roads such as haul roads or construction platforms to support permanent roads. The Montana Department of Transportation (MDT) has used both geotextiles and geogrids for subgrade stabilization and supported this research because currently there is a lack of: (1) a universally acceptable standard design technique that incorporates non-proprietary material properties of geosynthetics when used as subgrade stabilization, and (2) agreement as to which geosynthetic properties are most relevant in these cases for purposes of specification development. Therefore, this research was initiated to provide an understanding of which properties are most relevant as MDT seeks to update its specifications to more broadly encompass materials with which it has had good experience, as well as open up the application to other suitable materials. This is particularly important since new geosynthetics and manufacturing processes are regularly introduced into the market.
Field Investigation of Geosynthetics Used for Subgrade Stabilization, Summary Report
Roadways are commonly constructed on weak native soil deposits. When excavation and replacement of these soils I not cost effective, soil stabilization may be necessary to provide a working platform so that the base course gravel layer can be properly constructed and overall rutting reduced. Geosynthetics are planar polymeric materials that have been extensively used in these situations (i.e., subgrade stabilization) to reinforce and/or separate the surrounding soils. Subgrade stabilization is typically applicable for unpaved temporary roads such as haul roads or construction platforms to support permanent roads. The Montana Department of Transportation (MDT) has used both geotextiles and geogrids for subgrade stabilization and supported this research because currently there is a lack of: (1) a universally acceptable standard design technique that incorporates non-proprietary material properties of geosynthetics when used as subgrade stabilization, and (2) agreement as to which geosynthetic properties are most relevant in these cases for purposes of specification development. Therefore, this research was initiated to provide an understanding of which properties are most relevant as MDT seeks to update its specifications to more broadly encompass materials with which it has had good experience, as well as open up the application to other suitable materials. This is particularly important since new geosynthetics and manufacturing processes are regularly introduced into the market.
Field Investigation of Geosynthetics Used for Subgrade Stabilization, Summary Report
E. Cuelho (author) / S. Perkins (author)
2009
4 pages
Report
No indication
English
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