A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Use of Geotextile Reinforced Slope for Containment Facility Dike
The objective of this study was to evaluate the performance of geosynthetic-reinforced aggregate bases for unpaved roads over soft subgrade using laboratory plate load test. The model tests were conducted in a 1.5 m long, 0.91 m wide, and 0.91 m deep steel test box. The load was applied through a 190.5-mm diameter steel plate. The parameters evaluated in this study included the thickness of aggregate base surfacing, the location and tensile modulus of geosynthetics, and the number of geosynthetic reinforcement layers. Test results indicated that the geosynthetic reinforcement resulted in appreciable reduction of surface deformation and increase of bearing capacity for unpaved aggregate base over soft subgrade. The test results also showed obvious effects of the geogrid arrangement/location on the unpaved test section's performance, with the double reinforcement location consistently yielding the largest improvement. Higher tensile modulus geosynthetics performed better than others. Greater improvement due to geosynthetic reinforcement was seen for test sections with thinner aggregate base surfacing. Based on the results of the present study, the following conclusions can be drawn: (1) The bearing capacity ratio (BCR) generally increases with the increase in tensile modulus of geosynthetic reinforcement (up to 1.53) and approaches a limit value as the tensile modulus of geosynthetic reinforcement exceeds 550 kN/m. (2) Placing the geosynthetic material in the double location yielded the largest improvement. For the single layer of reinforcement, the upper one third locations yielded highest improvements. (3) The geogrid benefits were more appreciable in sections with thin base course layer compared to those in sections with thick base course layer.
Use of Geotextile Reinforced Slope for Containment Facility Dike
The objective of this study was to evaluate the performance of geosynthetic-reinforced aggregate bases for unpaved roads over soft subgrade using laboratory plate load test. The model tests were conducted in a 1.5 m long, 0.91 m wide, and 0.91 m deep steel test box. The load was applied through a 190.5-mm diameter steel plate. The parameters evaluated in this study included the thickness of aggregate base surfacing, the location and tensile modulus of geosynthetics, and the number of geosynthetic reinforcement layers. Test results indicated that the geosynthetic reinforcement resulted in appreciable reduction of surface deformation and increase of bearing capacity for unpaved aggregate base over soft subgrade. The test results also showed obvious effects of the geogrid arrangement/location on the unpaved test section's performance, with the double reinforcement location consistently yielding the largest improvement. Higher tensile modulus geosynthetics performed better than others. Greater improvement due to geosynthetic reinforcement was seen for test sections with thinner aggregate base surfacing. Based on the results of the present study, the following conclusions can be drawn: (1) The bearing capacity ratio (BCR) generally increases with the increase in tensile modulus of geosynthetic reinforcement (up to 1.53) and approaches a limit value as the tensile modulus of geosynthetic reinforcement exceeds 550 kN/m. (2) Placing the geosynthetic material in the double location yielded the largest improvement. For the single layer of reinforcement, the upper one third locations yielded highest improvements. (3) The geogrid benefits were more appreciable in sections with thin base course layer compared to those in sections with thick base course layer.
Use of Geotextile Reinforced Slope for Containment Facility Dike
Abu-Farsakh, M. (author) / Akond, I. (author) / Chen, Q. (author) / Mohammad, L. (author) / Surendra, M. (author)
2013
7 Seiten, Bilder, Tabellen, Quellen
Conference paper
Storage medium
English
Use of Geotextile Reinforced Slope for Containment Facility Dike
| Tema Archive | 2013