<rss version="2.0" xmlns:atom="https://www.w3.org/2005/Atom">
  <channel>
    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
    <description></description>
    <language>en-us</language>
    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>Investing in concrete durability</title>
      <link>https://trid.trb.org/View/1372418</link>
      <description><![CDATA[]]></description>
      <pubDate>Wed, 21 Oct 2015 13:02:01 GMT</pubDate>
      <guid>https://trid.trb.org/View/1372418</guid>
    </item>
    <item>
      <title>SEEPAGE PROBLEMS OF EARTH AND ROCKFILL DAMS ON ROCK FOUNDATIONS</title>
      <link>https://trid.trb.org/View/60991</link>
      <description><![CDATA[The article describes problems encountered at the East Branch (Clarion River) dam in the United States, and discusses various foundation treatments carried out.  The embankment comprised a central impervious core with upstream and downstream random zones, and a rockfill zone underlying the upstream slope protection.]]></description>
      <pubDate>Wed, 29 Mar 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/60991</guid>
    </item>
    <item>
      <title>ASSESSING PROBLEMS OF UNDERGROUND STRUCTURES. PART TWO</title>
      <link>https://trid.trb.org/View/36427</link>
      <description><![CDATA[Several examples are presented to further explain the mathematical analysis of rock mechanics that is discussed in relationship to tunnel support techniques.  One case examined is creeping rock masses where deformations do not occur within a short time after excavation but progress slowly many months after the end of the excavations. Another case involves the use of thin concrete linings according to the techniques developed by Bernold.  A third case illustrate the effort to create tangential compression stresses inside a circular concrete lining and increase its resistance to fissuration by hydraulic pressure through the use of high pressure grouting of the rock mass around the tunnel.  examples are also given where rock bolts or rock anchors are used, either above or in connection with shotcrete layers, steel meshes or concrete linings. /HRIS/]]></description>
      <pubDate>Fri, 14 May 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/36427</guid>
    </item>
    <item>
      <title>ASSESSING PROBLEMS OF UNDERGROUND STRUCTURES. PART ONE</title>
      <link>https://trid.trb.org/View/36020</link>
      <description><![CDATA[An analysis is presented of case histories where problems in rock excavations are encountered.  These case histories illustrate the difficulties encountered in defining the modulus of elasticity of rock masses based on in situ measurements, and in determining other constants of rock masses such as the crushing strength and cohesion.  One of the case histories, the excavation of several caverns for the Cabora Bassa underground powerhouse, illustrates the use of the finite element method of design, which takes into account the vertical and horizontal residual stress in the rock, the shape of the excavations, the rock characteristics, the geological stratification, and the construction program.  Another case history of a circular excavation illustrates the case of overstressed rock where elasto-plastic deformations occur. /HRIS/]]></description>
      <pubDate>Wed, 10 Mar 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/36020</guid>
    </item>
  </channel>
</rss>