This paper presents selection criteria for using cut-and-cover methods for pipeline installation in a proposed underground freight transportation (UFT) system from the Port of Houston to a distribution center in south of Dallas, Texas. UFT uses close-fitting vehicles carrying freight through underground pipelines and tunnels between terminals. For this project, cut-and-cover method is used in rural areas where there are fewer limitations for trench excavation and temporary soil stockpiling. Different trench cross sections are compared to follow Occupational Safety and Health Administration (OSHA) regulations. To decide which trench cross section is more applicable, a comparison is performed for different trench geometry and construction cost based on equipment used for excavation and spoil hauling. In this paper, three trench types were compared in terms of volume of excavation, constructability and cost. It can be concluded that trench Types 2 (combination trench) and 3 (bench cut) have approximately 40% and 50% higher cost than trenches Type 1 (sloped trench) respectively, but trench Type 2 is the best option as it meets the construction space requirements.


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    Title :

    Use of Cut-and-Cover Method for Pipeline Installation in Underground Freight Transportation



    Conference:

    Pipelines 2017 ; 2017 ; Phoenix, Arizona


    Published in:

    Publication date :

    2017-08-03




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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