• Login
    View Item 
    •   Home
    • University of Alaska Fairbanks
    • College of Engineering and Mines (CEM)
    • Institute of Northern Engineering
    • Arctic Infrastructure Development Center (AIDC) Publications
    • Community Center for Environmentally Sustainable Transportation in Cold Climates (CESTiCC) Publications
    • CESTiCC Project Reports
    • View Item
    •   Home
    • University of Alaska Fairbanks
    • College of Engineering and Mines (CEM)
    • Institute of Northern Engineering
    • Arctic Infrastructure Development Center (AIDC) Publications
    • Community Center for Environmentally Sustainable Transportation in Cold Climates (CESTiCC) Publications
    • CESTiCC Project Reports
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Scholarworks@UACommunitiesPublication DateAuthorsTitlesSubjectsTypeThis CollectionPublication DateAuthorsTitlesSubjectsType

    My Account

    Login

    First Time Submitters, Register Here

    Register

    Statistics

    Display statistics

    Development of Landslide Warning System

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Hawaii Project Final Report.pdf
    Size:
    6.310Mb
    Format:
    PDF
    Download
    Author
    Riad, Beshoy
    Zhang, Xiong
    Keyword
    Landslide
    Unsaturated soils
    Slope stability analysis
    Elasto-plastic
    Barcelona Basic Model
    Field monitoring
    Finite Element Modeling
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/10914
    Abstract
    Landslides cause approximately 25 to 50 deaths and US$1 - 2 billion worth of damage in the United States annually. They can be triggered by humans or by nature. It has been widely recognized that rainfall is one of the major causes of slope instability and failure. Slope remediation and stabilization efforts can be costly. An early warning system is a suitable alternative and can save human lives. In this project, an early warning system was developed for a 40-foot-high cut slope on the island of Hawaii. To achieve the objective, subsurface investigations were performed and undisturbed samples were collected. For the purpose of unsaturated soil testing, new testing apparatuses were developed by modifying the conventional oedometer and direct shear cells. The unsaturated soil was characterized using two separate approaches and, later, the results were discussed and compared. The slope site was instrumented for the measurement of suction, water content, displacement, and precipitation. The collected climatic data along with the calibrated hydraulic parameters were used to build an infiltration-evapotranspiration numerical model. The model estimations were compared with the field measurements and showed good agreement. The verified model was used to determine the pore-water pressure distribution during and after a 500-years return storm. Later, the pore-water pressure distribution was transferred to a slope stability software and used to study the slope stability during and after the storm. Based on a 2D slope stability analysis, the slope can survive the 500-year storm with a factor of safety of 1.20. Instrument threshold values were established for water content sensors and tensiometers using a traffic-light-based trigger criterion.
    Date
    2019-11
    Type
    Technical Report
    Collections
    CESTiCC Project Reports

    entitlement

     
    ABOUT US|HELP|BROWSE|ADVANCED SEARCH

    The University of Alaska Fairbanks is an affirmative action/equal opportunity employer and educational institution and is a part of the University of Alaska system.

    ©UAF 2013 - 2022 | Questions? ua-scholarworks@alaska.edu | Last modified: September 25, 2019

    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.