A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Decision Making Process for Identifying Optimum Trenchless Method for Corrugated Metal Pipe Rehabilitation in Stormwater
Corrugated metal pipe (CMP) in stormwater infrastructure deteriorates from exposure to corrosive and demanding conditions which can lead to failures that result in pipe collapse, sinkholes, and flooding. Replacement through open cut is costly and disruptive to traffic due to the need to excavate the damaged pipes and roadways. These challenges could be reduced using trenchless technologies. However, it is difficult to fit various trenchless techniques into a comprehensive approach to rehabilitation that can provide equivalent performance in stormwater. In this study, the City of San Antonio developed a proactive program to assess and select trenchless technologies that are suitable for the specific pipe/environmental conditions in the City. Four technologies were selected: cured-in place pipe (CIPP), sliplining, spray-on lining, and invert paving. A decision-making matrix was developed to provide decision-makers the flexibility to tailor optimal solutions for specific deficient structures. The matrix and rehabilitation methodology selection process were tested a Pilot Project that was conducted in September–October 2019 on four defective CMP segments, totaling 1,871 LF.
Decision Making Process for Identifying Optimum Trenchless Method for Corrugated Metal Pipe Rehabilitation in Stormwater
Corrugated metal pipe (CMP) in stormwater infrastructure deteriorates from exposure to corrosive and demanding conditions which can lead to failures that result in pipe collapse, sinkholes, and flooding. Replacement through open cut is costly and disruptive to traffic due to the need to excavate the damaged pipes and roadways. These challenges could be reduced using trenchless technologies. However, it is difficult to fit various trenchless techniques into a comprehensive approach to rehabilitation that can provide equivalent performance in stormwater. In this study, the City of San Antonio developed a proactive program to assess and select trenchless technologies that are suitable for the specific pipe/environmental conditions in the City. Four technologies were selected: cured-in place pipe (CIPP), sliplining, spray-on lining, and invert paving. A decision-making matrix was developed to provide decision-makers the flexibility to tailor optimal solutions for specific deficient structures. The matrix and rehabilitation methodology selection process were tested a Pilot Project that was conducted in September–October 2019 on four defective CMP segments, totaling 1,871 LF.
Decision Making Process for Identifying Optimum Trenchless Method for Corrugated Metal Pipe Rehabilitation in Stormwater
Garza, Nefi (author) / Reyna, Roberto (author) / Ogidan, Olufunso (author) / Gaspard, Noelle (author)
Pipelines 2020 ; 2020 ; San Antonio, Texas (Conference Held Virtually)
Pipelines 2020 ; 402-410
2020-08-06
Conference paper
Electronic Resource
English
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