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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>COMPUTERIZED SOIL TEST DATA FOR HIGHWAY DESIGN</title>
      <link>https://trid.trb.org/View/12499</link>
      <description><![CDATA[Sample sites of 22,404 highway engineering soil test samples, representing more than 20 years of highway soil testing throughout South Dakota, were precisely located on soil maps of the National Cooperative Soil Survey, and the test data for each sample site were identified by soil series name. Mapping was sufficiently accurate and most soil series were sufficiently unique to encompass a relatively narrow range of values for any engineering characteristic. The engineering test data include gradation, liquid limit, plasticity index, maximum density, and optimum moisture. The data were placed on computer tape, and a statistical program was written to compute minimum, maximum, mean, and standard deviation of test data, Unified Soil Classification System, old and new AASHO Soil Classification Systems, and mean and maximum California bearing ratio for each horizon of each soil series.  Both the unprocessed and the statistical data have been sorted and printed out in several forms for maximum usefulness.  The correlated data enable engineers to use pedological soil survey maps to accurately predict the engineering characteristics of soils along proposed highway routes, assist engineers in planning a much abbreviated and economical yet more effective drilling and testing program, indicate specific locations of possible sources of granular and select borrow materials, make possible the compilation of large-scale engineering soil maps or profiles based on any engineering characteristic, aid in route selection, right-of-way appraisal, and location of selected soil series, and give soil scientists and engineers reliable characterizations of soil series based on statistically significant sample size.]]></description>
      <pubDate>Wed, 04 Sep 1974 00:00:00 GMT</pubDate>
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      <title>PLANE STRAIN CONSOLIDATION BY FINITE ELEMENTS</title>
      <link>https://trid.trb.org/View/16277</link>
      <description><![CDATA[The report describes the application of the finite element technique to plane strain consolidation problems, dealing with primary consolidation only.  A description is given of three-dimensional consolidation in order to explain three-dimensional effects in the consolidation process and to discuss similarities in the finite element formulation, Biot's and Terzaghi's formulation.  The main points of a finite element formulation for the consolidation process are summarized, and the resulting computer program, CONSOL, is described.  The complete element formulation is given in an appendix.  An investigation is made on one- and two- dimensional problems, which show the effects discussed in the chapter on consolidation theory. A choice is made of problems which are of practical importance.  (Author)]]></description>
      <pubDate>Mon, 10 Jun 1974 00:00:00 GMT</pubDate>
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