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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-12847</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/12847</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Горное дело</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Mining</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Fracture of materials by a rotating water jet</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Разрушение материалов вращающейся струей воды</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Kolchanov</surname>
            <given-names>V. D.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Колчанов</surname>
              <given-names>В. Д.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Kolchanov</surname>
              <given-names>V. D.</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 contrib-type="author">
          <name name-style="eastern">
            <surname>Severin</surname>
            <given-names>L. P.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Северин</surname>
              <given-names>Л. П.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Severin</surname>
              <given-names>L. P.</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"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1959-07-29">
        <day>29</day>
        <month>07</month>
        <year>1959</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1959</year>
      </pub-date>
      <volume>41</volume>
      <issue>1</issue>
      <fpage>81</fpage>
      <lpage>87</lpage>
      <history>
        <date date-type="received" iso-8601-date="1958-07-12">
          <day>12</day>
          <month>07</month>
          <year>1958</year>
        </date>
        <date date-type="accepted" iso-8601-date="1958-09-19">
          <day>19</day>
          <month>09</month>
          <year>1958</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1959-07-29">
          <day>29</day>
          <month>07</month>
          <year>1959</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© V. D. Kolchanov, L. P. Severin</copyright-statement>
        <copyright-year>1959</copyright-year>
        <copyright-holder xml:lang="ru">В. Д. Колчанов, Л. П. Северин</copyright-holder>
        <copyright-holder xml:lang="en">V. D. Kolchanov, L. P. Severin</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/12847">https://pmi.spmi.ru/pmi/article/view/12847</self-uri>
      <abstract xml:lang="ru">
        <p>При конструировании добычных и проходческих горных машин, работающих на принципе гидроотбойки, важно знать зависимость производительности и энергоемкости разрушения твердых тел струей воды от скорости перемещения оси струи относительно забоя, от дав­ления воды перед насадком, а также от других параметров (радиуса вращения насдка, расстояния от насадка до разрушаемого тела и т.д.).</p>
      </abstract>
      <abstract xml:lang="en">
        <p>When designing mining and tunneling mining machines operating on the principle of hydraulic stripping, it is important to know the dependence of productivity and energy consumption of solid bodies destruction by water jet on the speed of movement of the jet axis relative to the bottom face, on the water pressure in front of the nozzle, as well as on other parameters (radius of rotation of the nozzle, distance from the nozzle to the body to be destroyed, etc.).</p>
      </abstract>
    </article-meta>
  </front>
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