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    BERG2 Micro-Computer Estimation of Freeze and Thaw Depths and Thaw Consolidation

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    Author
    Braley, W. Alan
    Connor, Billy
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    URI
    http://hdl.handle.net/11122/10358
    Abstract
    The BERG2 microcomputer program uses a methodology similar to the Modified Berggren method (Aldrich and Paynter, 1953) to estimate the freeze and thaw depths in layered soil systems. The program also provides an estimate of the thaw consolidation in ice rich soils. BERG2 differs from the original Modified Berggren method since it uses the actual frozen and unfrozen material thermal properties instead of average alues. This approach improves the accuracy of the prediction. BERG2 provides an improved user interface over the original BERG program (Braley, 1984). It also requires less input as a result of the ability to compute many of climatic parameters from the more common data. As a result the user required input is significantly reduced. This manual provides the user information concerning the use of BERG2, its strengths and its limitations. It also provides a discussion of the equations used in development of the program for those who wish a better understanding of the analysis process.
    Table of Contents
    List of Figures - iv List of Tables - v Introduction - 1 User's Guide - 2 The Location Screen - 2 The Soils Screens - 4 Execution and Output - 6 Example Solution - 7 Freeze and Thaw Depth Calculation - 13 Freezing and Thawing Indices and Surface N-Factors - 18 Soil Surface Season Lengths and Temperatures - 19 Error Function Calculation - 20 Soil Thermal Properties - 21 Consolidation - 22 References - 24 Appendix - 26
    Date
    1989-06
    Type
    Technical Report
    Collections
    INE Project Reports

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