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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-10699</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/10699</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">Increase of efficiency of drilling machines utilization during drilling of small-diameter boreholes at mica mines</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Повышение эффективности использования буровых станков при бурении отбойных скважин малого диаметра на слюдяных рудниках</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Khmyznikov</surname>
            <given-names>K. P.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Хмызников</surname>
              <given-names>К. П.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Khmyznikov</surname>
              <given-names>K. P.</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"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1984-12-06">
        <day>06</day>
        <month>12</month>
        <year>1984</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1984</year>
      </pub-date>
      <volume>99</volume>
      <fpage>112</fpage>
      <lpage>116</lpage>
      <history>
        <date date-type="received" iso-8601-date="1983-07-08">
          <day>08</day>
          <month>07</month>
          <year>1983</year>
        </date>
        <date date-type="accepted" iso-8601-date="1983-09-25">
          <day>25</day>
          <month>09</month>
          <year>1983</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1984-12-06">
          <day>06</day>
          <month>12</month>
          <year>1984</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1984 К. П. Хмызников</copyright-statement>
        <copyright-statement xml:lang="en">© 1984 K. P. Khmyznikov</copyright-statement>
        <copyright-year>1984</copyright-year>
        <copyright-holder xml:lang="ru">К. П. Хмызников</copyright-holder>
        <copyright-holder xml:lang="en">K. P. Khmyznikov</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/10699">https://pmi.spmi.ru/pmi/article/view/10699</self-uri>
      <abstract xml:lang="ru">
        <p>При внедряемой в настоящее враля системе подземной разработки слюдо­носных жил небольшой и средней мощности с открытым очистным пространством необходимо бурить вертикальные или слабонаклонные отбойные скважины диа­метром 50-75 мм и глубиной 15-25 м.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>At the system of underground development of mica-bearing veins of small and medium thickness with open cleaning space, which is being implemented nowadays, it is necessary to drill vertical or slightly inclined boreholes with a diameter of 50-75 mm and a depth of 15-25 m.</p>
      </abstract>
    </article-meta>
  </front>
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