Retaining Wall Inventory and Assessment System

Asset management is a relatively new concept in geotechnical engineering. In general, the nature of earth structures within the realm of highway engineering renders the concept of asset management a valuable tool for operation efficiency and cost control. Asset management includes a database of assets, tools to manage the database, asset condition assessment models, and strategies for assessment, mitigation, rehabilitation, and replacement. At present, there is no systematic tool to provide electronic documentation and analysis of earth structures including the retaining wall inventory maintained by the North Carolina Department of Transportation (NCDOT). The objective of this research is to design and develop a database archival and retrieval system for electronic documentation, management, qualitative analysis, and display of retaining walls, especially critical walls such as those adjacent to bridges. Such structures include MSE, soil-nail, tie-back, gravity, cantilever, and pile panel walls. The prototype database to be created will include wall location, geometry, internal configuration, local geology, and external signs of stress such as tilt and cracking. The development of rating criteria models that are specific to particular wall types will also be explored in consultation with NCDOT. The development of a systematic means for cataloging and condition assessment of highway retaining structures will represent a major contribution to the ability to establish effective and sustainable maintenance and replacement priorities. The primary project product is referred to herein as a database and includes a definition of all data tables and the attributes they contain. The final report will provide these definitions as well as sample data for 12 existing retaining walls populating all tables. Data collection procedures will include both wall spatial as well as wall attribute (characteristics) data. The spatial data will be organized in such a way as to be able to link to existing NCDOT systems. The proposed database (of key parameters defining the various types of retaining walls within the state) is intended to assist NCDOT engineers and contractors in evaluating the need for maintenance and replacement as well as capture often-lost assets for effective master planning, engineering, design, maintenance, and management of highway retaining structures.

    Language

    • English

    Project

    • Status: Active
    • Funding: $227388.00
    • Contract Numbers:

      2014-10

    • Sponsor Organizations:

      North Carolina Department of Transportation

      Research and Development
      1549 Mail Service Center
      Raleigh, NC  United States  27699-1549
    • Project Managers:

      Abadilla, F

    • Performing Organizations:

      North Carolina State University, Raleigh

      Department of Civil Engineering, Campus Box 7908
      Raleigh, NC  United States  27695-7908
    • Principal Investigators:

      Rasdorf, William

    • Start Date: 20130816
    • Expected Completion Date: 0
    • Actual Completion Date: 20150815
    • Source Data: RiP Project 37227

    Subject/Index Terms

    Filing Info

    • Accession Number: 01539436
    • Record Type: Research project
    • Source Agency: North Carolina Department of Transportation
    • Contract Numbers: 2014-10
    • Files: RiP, STATEDOT
    • Created Date: Sep 27 2014 1:00AM