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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 pub-id-type="doi">10.31897/PMI.2022.1</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15540</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15540</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Геотехнология и инженерная геология</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Geotechnical Engineering and Engineering Geology</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Ensuring the excavation workings stability when developing excavation sites  of flat-lying coal seams by three workings</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Обеспечение устойчивости выемочных выработок  при подготовке выемочных участков пологих угольных пластов  тремя выработками</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Kazanin</surname>
            <given-names>Oleg I.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Казанин</surname>
              <given-names>О. И.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Kazanin</surname>
              <given-names>Oleg I.</given-names>
            </name>
          </name-alternatives>
          <email>Kazanin_OI@pers.spmi.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0001-9663-6713</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Ilinets</surname>
            <given-names>Andrei A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Ильинец</surname>
              <given-names>А. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Ilinets</surname>
              <given-names>Andrei A.</given-names>
            </name>
          </name-alternatives>
          <email>andrey4729@hotmail.com</email>
          <contrib-id contrib-id-type="orcid">0000-0003-1377-6206</contrib-id>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Санкт-Петербургский горный университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Saint Petersburg Mining University (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2022-04-29">
        <day>29</day>
        <month>04</month>
        <year>2022</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2022</year>
      </pub-date>
      <volume>253</volume>
      <fpage>41</fpage>
      <lpage>48</lpage>
      <history>
        <date date-type="received" iso-8601-date="2021-07-05">
          <day>05</day>
          <month>07</month>
          <year>2021</year>
        </date>
        <date date-type="accepted" iso-8601-date="2022-01-24">
          <day>24</day>
          <month>01</month>
          <year>2022</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2022-04-29">
          <day>29</day>
          <month>04</month>
          <year>2022</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2022 О. И. Казанин, А. А. Ильинец</copyright-statement>
        <copyright-statement xml:lang="en">© 2022 Oleg I. Kazanin, Andrei A. Ilinets</copyright-statement>
        <copyright-year>2022</copyright-year>
        <copyright-holder xml:lang="ru">О. И. Казанин, А. А. Ильинец</copyright-holder>
        <copyright-holder xml:lang="en">Oleg I. Kazanin, Andrei A. Ilinets</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/15540">https://pmi.spmi.ru/pmi/article/view/15540</self-uri>
      <abstract xml:lang="ru">
        <p>На основе анализа планов горных выработок и натурных исследований на шахтах АО «СУЭК-Кузбасс» показано, что в условиях увеличения размеров выемочных столбов при отработке свит пологих угольных пластов напряженно-деформированное состояние массива по длине выработок существенно изменяется. Отмечена необходимость прогноза напряженно-деформированного состояния на стадии проектирования паспортов крепления выработок, а также последующего мониторинга состояния кровли выработки и его изменений в процессе ведения горных работ с использованием видеоэндоскопов. Приведены результаты численных исследований напряженно-деформированного состояния массива при подготовке выемочных участков тремя выработками для различных сочетаний ширины целиков между выработками для горно-геологических и горнотехнических условий шахты «Талдинская-Западная-2». Сравниваются напряжения в окрестности трех выработок со значениями, полученными при подготовке выемочных участков спаренными выработками. Представлен комплекс рекомендаций по выбору места расположения выработок, ширины целиков, паспортов крепления, обеспечивающих устойчивое состояние выработок в течение всего срока службы при минимальных потерях угля в целиках.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>On the basis of analysis of mining plans and field studies at mines of JSC SUEK-Kuzbass, it is shown that in conditions of increasing the size of excavation columns during the development of flat-lying coal seams the stress-strain state of the rock mass along the workings length changes significantly. The necessity of predicting the stress-strain state at the design stage of the workings timbering standards, as well as subsequent monitoring of the workings roof state and its changes in the mining operations using video endoscopes, is noted. The results of numerical studies of the stress-strain state of the rock mass during the development of excavation sites by three workings for various combinations of width of the pillars between the workings for mining-geological and mining-technical conditions of the “Taldinskaya-Zapadnaya-2” mine are provided. The stresses in the vicinity of the three workings are compared with the values obtained during the development of the excavation sites by double drift. A set of recommendations on the choice of the location of the workings, the width of pillars, timbering standards that ensure the stable condition of the workings throughout the entire service life at the minimal losses of coal in the pillars is presented.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>угольные пласты</kwd>
        <kwd>подземная разработка</kwd>
        <kwd>выемочные выработки</kwd>
        <kwd>устойчивость</kwd>
        <kwd>целики</kwd>
        <kwd>напряженно-деформированное состояние</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>coal seams</kwd>
        <kwd>underground mining</kwd>
        <kwd>excavation workings</kwd>
        <kwd>stability</kwd>
        <kwd>pillars</kwd>
        <kwd>stress-strain state</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
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