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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-11738</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/11738</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">Analytical determination of the direction of deepening of a circular pit</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Аналитическое определение направления углубки круглого карьера</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Slutsman</surname>
            <given-names>L. A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Слуцман</surname>
              <given-names>Л. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Slutsman</surname>
              <given-names>L. A.</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="1972-07-07">
        <day>07</day>
        <month>07</month>
        <year>1972</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1972</year>
      </pub-date>
      <volume>63</volume>
      <issue>1</issue>
      <fpage>59</fpage>
      <lpage>64</lpage>
      <history>
        <date date-type="received" iso-8601-date="1971-07-21">
          <day>21</day>
          <month>07</month>
          <year>1971</year>
        </date>
        <date date-type="accepted" iso-8601-date="1971-09-13">
          <day>13</day>
          <month>09</month>
          <year>1971</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1972-07-07">
          <day>07</day>
          <month>07</month>
          <year>1972</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1972 Л. А. Слуцман</copyright-statement>
        <copyright-statement xml:lang="en">© 1972 L. A. Slutsman</copyright-statement>
        <copyright-year>1972</copyright-year>
        <copyright-holder xml:lang="ru">Л. А. Слуцман</copyright-holder>
        <copyright-holder xml:lang="en">L. A. Slutsman</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/11738">https://pmi.spmi.ru/pmi/article/view/11738</self-uri>
      <abstract xml:lang="ru">
        <p>Под круглым карьером условимся понимать карьер, контур которо­го на конец отработки близок к эллиптическому конусу. Исследования будем производить в естественной декартовой системе координат, т. е. плоскость хоу параллельна плоскости горизонта, оси ох и оу параллель­ны осям карьера...</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Under a circular quarry we will understand a quarry, the contour of which at the end of mining is close to an elliptical cone. The research will be carried out in the natural Cartesian coordinate system, i.e. the plane hou is parallel to the plane of the horizon, axes oh and ohu are parallel to the axes of the quarry...</p>
      </abstract>
    </article-meta>
  </front>
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