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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-12155</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/12155</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Без раздела</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Without section</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Calculation of limit spans of unshored frozen roofs</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Расчет предельных пролетов незакрепленной мерзлой кровли</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Shuvalov</surname>
            <given-names>Yu. V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Шувалов</surname>
              <given-names>Ю. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Shuvalov</surname>
              <given-names>Yu. V.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1969-05-05">
        <day>05</day>
        <month>05</month>
        <year>1969</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1969</year>
      </pub-date>
      <volume>58</volume>
      <issue>1</issue>
      <fpage>174</fpage>
      <lpage>178</lpage>
      <history>
        <date date-type="received" iso-8601-date="1968-07-12">
          <day>12</day>
          <month>07</month>
          <year>1968</year>
        </date>
        <date date-type="accepted" iso-8601-date="1968-09-01">
          <day>01</day>
          <month>09</month>
          <year>1968</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1969-05-05">
          <day>05</day>
          <month>05</month>
          <year>1969</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© Yu. V. Shuvalov</copyright-statement>
        <copyright-year>1969</copyright-year>
        <copyright-holder xml:lang="ru">Ю. В. Шувалов</copyright-holder>
        <copyright-holder xml:lang="en">Yu. V. Shuvalov</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/12155">https://pmi.spmi.ru/pmi/article/view/12155</self-uri>
      <abstract xml:lang="ru">
        <p>Характерной особенностью месторождений, расположенных в зоне многолетней мерзлоты, является цементация породных блоков льдом, который заполняет межслоевые трещины и тре­щины, секущие породные слои, что способствует консолидации слоев и ведет к увеличению несущей способности массива в целом.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>A characteristic feature of deposits located in the permafrost zone is cementation of rock blocks with ice, which fills interlayer cracks and cracks that cut through rock layers, which promotes consolidation of layers and leads to an increase in the bearing capacity of the massif as a whole.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
    <ref-list>
      <ref id="ref1">
        <label>1</label>
        <mixed-citation xml:lang="ru">Бубнов И. Г. Труды по теории пластин. Гостехнтеоретиздат, 1953.</mixed-citation>
        <mixed-citation xml:lang="en">Bubnov I. G. Works on the theory of plates. Gostekhnteoretizdat, 1953.</mixed-citation>
      </ref>
      <ref id="ref2">
        <label>2</label>
        <mixed-citation xml:lang="ru">Вайтковский К. Ф. Механические свойства льда. АН СССР, 1960.</mixed-citation>
        <mixed-citation xml:lang="en"> Vaitkovsky K. F. Mechanical properties of ice. AS USSR, 1960.</mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>
