Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction Cost Analysis of Trenchless Cured-in-Place Pipe and Spray-Applied Pipe Linings Rehabilitation Methods in Gravity Conveyance Conduits
Renewal of old and deteriorated utilities and underground infrastructure becomes one of the main challenges for governmental agencies and municipalities in North America. Spray applied pipe linings (SAPLs) are trenchless technology solutions for renewal of gravity stormwater conveyance conduits. SAPLs prevent further deterioration, such as corrosion and abrasion, and can provide structural support for severely damaged host gravity stormwater conveyance conduits. Trenchless Cured-in-Place Pipe (CIPP) method involves a liquid thermoset resin-saturated material that is inserted into the existing host pipe by hydrostatic or air inversion, or mechanically pulling-in and inflating. The liner material is cured-in-place using hot water, steam- or light-cured using UV light resulting in the CIPP product. The SAPL trenchless method is considered more cost-effective than CIPP in terms of initial construction costs; however, to make a comprehensive comparison, engineers and project owners require additional evaluation. The objective of this paper is to collect and review available construction costs data related to SAPL and CIPP trenchless rehabilitation projects and analyze their construction costs for renewing the gravity stormwater conveyance conduits. It was found that the CIPP method is less expensive than the SAPL trenchless renewal method in large diameter culverts. It can be concluded that using CIPP, municipalities and governmental agencies can save millions of dollars in the renewal of underground water utility systems. For a future research, comprehensive life-cycle cost analysis to evaluate and compare the construction, environmental, and social costs between SAPL and CIPP trenchless renewal methods is recommended.
Construction Cost Analysis of Trenchless Cured-in-Place Pipe and Spray-Applied Pipe Linings Rehabilitation Methods in Gravity Conveyance Conduits
Renewal of old and deteriorated utilities and underground infrastructure becomes one of the main challenges for governmental agencies and municipalities in North America. Spray applied pipe linings (SAPLs) are trenchless technology solutions for renewal of gravity stormwater conveyance conduits. SAPLs prevent further deterioration, such as corrosion and abrasion, and can provide structural support for severely damaged host gravity stormwater conveyance conduits. Trenchless Cured-in-Place Pipe (CIPP) method involves a liquid thermoset resin-saturated material that is inserted into the existing host pipe by hydrostatic or air inversion, or mechanically pulling-in and inflating. The liner material is cured-in-place using hot water, steam- or light-cured using UV light resulting in the CIPP product. The SAPL trenchless method is considered more cost-effective than CIPP in terms of initial construction costs; however, to make a comprehensive comparison, engineers and project owners require additional evaluation. The objective of this paper is to collect and review available construction costs data related to SAPL and CIPP trenchless rehabilitation projects and analyze their construction costs for renewing the gravity stormwater conveyance conduits. It was found that the CIPP method is less expensive than the SAPL trenchless renewal method in large diameter culverts. It can be concluded that using CIPP, municipalities and governmental agencies can save millions of dollars in the renewal of underground water utility systems. For a future research, comprehensive life-cycle cost analysis to evaluate and compare the construction, environmental, and social costs between SAPL and CIPP trenchless renewal methods is recommended.
Construction Cost Analysis of Trenchless Cured-in-Place Pipe and Spray-Applied Pipe Linings Rehabilitation Methods in Gravity Conveyance Conduits
Serajiantehrani, Ramtin (Autor:in) / Najafi, Mohammad (Autor:in) / Malek Mohammadi, Mohammadrza (Autor:in) / Kaushal, Vinayak (Autor:in) / Jalalediny Korky, Seyedmohammadsadegh (Autor:in)
Pipelines 2021 ; 2021 ; Virtual Conference
Pipelines 2021 ; 210-220
29.07.2021
Aufsatz (Konferenz)
Elektronische Ressource
Englisch