A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of CIPP Design Equation for Polymeric Spray Applied Pipe Lining
Spray applied pipe lining (SAPL) is a trenchless technology method used to renew deteriorated gravity storm conduits and culverts. Currently, there is no known standard design methodology for polymeric SAPLs, such as polyurea, polyurethane, and epoxy. This paper evaluates the feasibility of using CIPP design equation as a structural design methodology for polymeric SAPL. To achieve this goal, three large-scale soil box tests were conducted at CUIRE Laboratory at the University of Texas at Arlington on 6-ft long, 60-in. diameter host corrugated metal pipe (CMP) samples. The invert of these CMPs were cut to simulate fully invert-deteriorated culverts in field. Once the CMPs were embedded, they were renewed with polyurethane SAPL in three thicknesses of 0.25, 0.5, and 1 in. The soil-host pipe/SAPL system was then subjected to a static load using a hydraulic actuator. The test results were compared with the CIPP design equations for fully deteriorated pipe conditions as per ASTM F1216-16. It was found that upon some modifications, the CIPP design equation can comply with the test results.
Evaluation of CIPP Design Equation for Polymeric Spray Applied Pipe Lining
Spray applied pipe lining (SAPL) is a trenchless technology method used to renew deteriorated gravity storm conduits and culverts. Currently, there is no known standard design methodology for polymeric SAPLs, such as polyurea, polyurethane, and epoxy. This paper evaluates the feasibility of using CIPP design equation as a structural design methodology for polymeric SAPL. To achieve this goal, three large-scale soil box tests were conducted at CUIRE Laboratory at the University of Texas at Arlington on 6-ft long, 60-in. diameter host corrugated metal pipe (CMP) samples. The invert of these CMPs were cut to simulate fully invert-deteriorated culverts in field. Once the CMPs were embedded, they were renewed with polyurethane SAPL in three thicknesses of 0.25, 0.5, and 1 in. The soil-host pipe/SAPL system was then subjected to a static load using a hydraulic actuator. The test results were compared with the CIPP design equations for fully deteriorated pipe conditions as per ASTM F1216-16. It was found that upon some modifications, the CIPP design equation can comply with the test results.
Evaluation of CIPP Design Equation for Polymeric Spray Applied Pipe Lining
Kohankar Kouchesfehani, Zahra (author) / Darabnoush Tehrani, Amin (author) / Najafi, Mohammad (author)
Pipelines 2021 ; 2021 ; Virtual Conference
Pipelines 2021 ; 112-122
2021-07-29
Conference paper
Electronic Resource
English
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