<?xml version="1.0" encoding="UTF-8"?>
<article xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" dtd-version="1.4" article-type="research-article">
  <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-10691</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/10691</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">Definition of optimum degree of crushing granite massif by explosion on crushed stone quarries</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Определение оптимальной степени дробления гранитного массива взрывом на щебеночных карьерах</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Makaryev</surname>
            <given-names>V. P.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Макарьев</surname>
              <given-names>В. П.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Makaryev</surname>
              <given-names>V. 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 contrib-type="author">
          <name name-style="eastern">
            <surname>Mikhailov</surname>
            <given-names>V. A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Михайлов</surname>
              <given-names>В. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Mikhailov</surname>
              <given-names>V. A.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <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>80</fpage>
      <lpage>84</lpage>
      <history>
        <date date-type="received" iso-8601-date="1983-07-07">
          <day>07</day>
          <month>07</month>
          <year>1983</year>
        </date>
        <date date-type="accepted" iso-8601-date="1983-09-07">
          <day>07</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 В. П. Макарьев, В. А. Михайлов</copyright-statement>
        <copyright-statement xml:lang="en">© 1984 V. P. Makaryev, V. A. Mikhailov</copyright-statement>
        <copyright-year>1984</copyright-year>
        <copyright-holder xml:lang="ru">В. П. Макарьев, В. А. Михайлов</copyright-holder>
        <copyright-holder xml:lang="en">V. P. Makaryev, V. A. Mikhailov</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/10691">https://pmi.spmi.ru/pmi/article/view/10691</self-uri>
      <abstract xml:lang="ru">
        <p>Особенность решения задачи оптимальности дробления горных пород взры­вом на щебеночных карьерах заключается в том, что одновременно с анализом работы карьерного оборудования, производительность которого зависит от выхода крупных фракций дробленого материала &amp;gt; 200 мм, необходимо рассмат­ривать вопрос о снижении мелких фракций некондиционного материала круп­ностью &amp;lt; 3 мм.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>The peculiarity of solving the problem of optimality of rock crushing by explosion at crushed stone quarries is that simultaneously with the analysis of the quarry equipment, whose productivity depends on the output of large fractions of crushed material &amp;gt; 200 mm, it is necessary to consider the issue of reduction of small fractions of substandard material size &amp;lt; 3 mm.</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
    <ref-list/>
  </back>
</article>
