Assessing the potentiality of plastic sheet insertion against road depression

Miyagi, Atsuhiro (2015) Assessing the potentiality of plastic sheet insertion against road depression. MSc dissertation, University of Portsmouth.

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    Road has significant role in commercial area because ground transportation facilitates trading. Therefore, much cost is consumed for fixing defective road. In addition, defective road causes serious traffic accidents in each year. From these factors, keeping road smooth is necessary to grow national economy and to prevent traffic accidents.
    Subject of pavement types in this project is rigid pavement. That pavement is constructed in many European countries. So this project assists to national department and city council for transport employing rigid pavement.
    This project suspects a cavity within foundation leads to road depression. An ice is inserted in foundation, then, water is sent to melt it through tube. As a result, the cavity appears in foundation. The cavity causes several effect to pavement foundation. In this project, inserting plastic sheet is proposed as a solution for road depression. The experiment empirically shows the wetting cavity effects to rigid pavement.
    To analyse the experiment result, FEM calculation is employed in this research. Reproducing the geometry of the experiment on the screen and measuring material properties in tests contribute to express the pavement behaviour in the experiment.
    In this research, the distorted soil layer made by the cavity makes the life of the pavement short. The plastic sheet as a solution affect to expand the life of the pavement.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Beth Atkins
    Date Deposited: 13 Nov 2015 14:48
    Last Modified: 13 Nov 2015 14:48

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