Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sinkhole Remediation Measures for a Highway in King of Prussia, Pennsylvania
The S.R. 0202 (Route 202) rehabilitation project in King of Prussia, Pennsylvania is a complex highway rehabilitation and expansion effort that will significantly relieve congestion near the convergence of three heavily used highways linking downtown Philadelphia with its northwestern suburbs. This PENNDOT project, which went to construction in 1999, involves the widening of Route 202 and the construction of numerous new ramps to improve interchange movements. The entire 5-mile length of the project is underlain by Cambrian and Ordovician limestone formations that are extremely prone to solution activity. Therefore, in an effort to protect the new roadways against future sinkhole activity, the design had incorporated shallow sinkhole plug details, high-strength geotextile pavement reinforcement, and impermeable liners for drainage features throughout the project, as well as the localized injection of limited mobility grout at the most severe existing sinkhole areas. Even though large-scale bedrock voids were recognized to exist, these were generally very deep and were not expected to affect the ground surface within the design life of the project, particularly in light of the proposed drainage improvements and increased area of impervious surfaces.
Sinkhole Remediation Measures for a Highway in King of Prussia, Pennsylvania
The S.R. 0202 (Route 202) rehabilitation project in King of Prussia, Pennsylvania is a complex highway rehabilitation and expansion effort that will significantly relieve congestion near the convergence of three heavily used highways linking downtown Philadelphia with its northwestern suburbs. This PENNDOT project, which went to construction in 1999, involves the widening of Route 202 and the construction of numerous new ramps to improve interchange movements. The entire 5-mile length of the project is underlain by Cambrian and Ordovician limestone formations that are extremely prone to solution activity. Therefore, in an effort to protect the new roadways against future sinkhole activity, the design had incorporated shallow sinkhole plug details, high-strength geotextile pavement reinforcement, and impermeable liners for drainage features throughout the project, as well as the localized injection of limited mobility grout at the most severe existing sinkhole areas. Even though large-scale bedrock voids were recognized to exist, these were generally very deep and were not expected to affect the ground surface within the design life of the project, particularly in light of the proposed drainage improvements and increased area of impervious surfaces.
Sinkhole Remediation Measures for a Highway in King of Prussia, Pennsylvania
Petersen, William K. (Autor:in) / Meyers, John R. (Autor:in) / Mackey, Rex R. (Autor:in)
Ninth Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst ; 2003 ; Huntsville, Alabama, United States
05.09.2003
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Sinkhole Remediation Measures for a Highway in King of Prussia, Pennsylvania
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