RESEARCH COMMONS
LIBRARY

Theoretical Feasibility Study For A Conceptual Approach To Trenchless Replacement Of Culverts

ResearchCommons/Manakin Repository

Theoretical Feasibility Study For A Conceptual Approach To Trenchless Replacement Of Culverts

Show simple item record

dc.contributor.author Calderon, Diego R. en_US
dc.date.accessioned 2010-03-03T23:30:53Z
dc.date.available 2010-03-03T23:30:53Z
dc.date.issued 2010-03-03T23:30:53Z
dc.date.submitted January 2009 en_US
dc.identifier.other DISS-10551 en_US
dc.identifier.uri http://hdl.handle.net/10106/2099
dc.description.abstract Culvert damage and collapses and their renewal alternatives are a raising concern in today's infrastructure topics. In most cases damages are irreversible; however, in many cases opportunities exist to correct and renew. While conventional open-cut construction brings inconvenience to the public, trenchless technology brings a greener, reliable and more socially acceptable alternative to renew culverts. Considering the strong dependency on highway transportation by the American lifestyle, collapses of culverts in major roads may produce chaotic traffic redirections. To reduce this risk, this research sets a path for a construction and feasibility study on a new culvert replacement method based on an exploratory means; therefore, the specific objective is to design and estimate construction costs for a conceptual trenchless method and determine its feasibility. With a comprehensive literature review for culverts and its engineering principles the author introduces the topic while investigating also on the factors that lead to culvert underperformance. Preceding a general study on cellular sheet piling, the thesis investigates on trenchless technologies and other tunneling methods capable of replacing culverts. The results of the literature search direct the author to develop a new method, potentially suitable for replacing culverts. By combining pipe ramming, pipe jacking, cellular sheet piling and pipe roofing altogether, the method encases the host culvert allowing its later removal. The installation steps are formulated along with a general recommendation on equipment and materials. Advantages and limitations are explained for the process giving the reader a broader view of the proposed method. To start demonstrating the feasibility and other factors for the new methodology, a survey was conducted among the industry which resulted in a positive acceptance. The survey also assists the researcher on topics such as advantages and limitations, feasibility, crew sizes, project durations, and future research recommendations. In an ultimate step towards feasibility and cost estimation analysis, a theoretical detail cost estimation for the proposed methodology is performed. A replacement project on an imaginary two-way road with one single line in each direction is studied and cost estimated. The backbone of the cost estimation is the combination of the results of the survey and information from construction cost databases. In conclusion, this research proved the economic feasibility of the new method by successfully analyzing its direct costs. The direct costs for the proposed methodology seem high; however, they prove the economic feasibility when the social cost savings by trenchless technologies are considered; also, when comparing the estimated costs with other similar technologies, the new methodology resulted less expensive. en_US
dc.description.sponsorship Najafi, Mohammad en_US
dc.language.iso EN en_US
dc.publisher Civil & Environmental Engineering en_US
dc.title Theoretical Feasibility Study For A Conceptual Approach To Trenchless Replacement Of Culverts en_US
dc.type M.S. en_US
dc.contributor.committeeChair Najafi, Mohammad en_US
dc.degree.department Civil & Environmental Engineering en_US
dc.degree.discipline Civil & Environmental Engineering en_US
dc.degree.grantor University of Texas at Arlington en_US
dc.degree.level masters en_US
dc.degree.name M.S. en_US
dc.identifier.externalLink https://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=1765
dc.identifier.externalLinkDescription Link to Research Profiles

Files in this item

Files Size Format View
Calderon_uta_2502M_10551.pdf 2.099Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record

Browse

My Account

Statistics

About Us