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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.2022.64</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15857</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15857</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">Improving the method for assessment of bending stresses  in the wall of an underground pipeline</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Совершенствование метода оценки изгибных напряжений  в стенке подземного трубопровода</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Aginey</surname>
            <given-names>Ruslan V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Агиней</surname>
              <given-names>Р. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Aginey</surname>
              <given-names>Ruslan V.</given-names>
            </name>
          </name-alternatives>
          <email>Rector@ugtu.net</email>
          <contrib-id contrib-id-type="orcid">0000-0002-5982-8983</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Ухтинский государственный технический университет (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Ukhta State Technical University (Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Firstov</surname>
            <given-names>Alexei A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Фирстов</surname>
              <given-names>А. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Firstov</surname>
              <given-names>Alexei A.</given-names>
            </name>
          </name-alternatives>
          <email>alekseyfirstov25@gmail.com</email>
          <contrib-id contrib-id-type="orcid">0000-0002-3979-9898</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="2022-11-07">
        <day>07</day>
        <month>11</month>
        <year>2022</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2022</year>
      </pub-date>
      <volume>257</volume>
      <fpage>744</fpage>
      <lpage>754</lpage>
      <history>
        <date date-type="received" iso-8601-date="2022-05-18">
          <day>18</day>
          <month>05</month>
          <year>2022</year>
        </date>
        <date date-type="accepted" iso-8601-date="2022-07-21">
          <day>21</day>
          <month>07</month>
          <year>2022</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2022-11-10">
          <day>10</day>
          <month>11</month>
          <year>2022</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 2022 Р. В. Агиней, А. А. Фирстов</copyright-statement>
        <copyright-statement xml:lang="en">© 2022 Ruslan V. Aginey, Alexei A. Firstov</copyright-statement>
        <copyright-year>2022</copyright-year>
        <copyright-holder xml:lang="ru">Р. В. Агиней, А. А. Фирстов</copyright-holder>
        <copyright-holder xml:lang="en">Ruslan V. Aginey, Alexei A. Firstov</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/15857">https://pmi.spmi.ru/pmi/article/view/15857</self-uri>
      <abstract xml:lang="ru">
        <p>Приведены краткие сведения о современных методах определения изгибных напряжений протяженных участков подземных магистральных трубопроводов без доступа к образующей трубопровода. Обоснована необходимость модернизации методов, основанных на определении конфигурации оси трубопровода с поверхности грунта с последующим расчетом по полученным данным изгибных напряжений. Предложена математическая модель, позволяющая при планировании исследования рассчитать оптимальные параметры съемки оси трубопровода с поверхности грунта для трубопровода произвольной конфигурации и глубины залегания. Проведены стендовые испытания трассоискателя БИТА-1 для определения погрешности в измерении глубины залегания оси трубопровода. Доказано, что отклонения показаний трассоискателя относительно истинных значений в узких интервалах глубин залегания подчиняются нормальному распределению и не меняют свой знак. Представлены доверительные интервалы погрешности в определении глубины залегания оси трубопровода для прибора БИТА-1.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Brief information about modern methods for determining the bending stresses of the extended sections of underground main pipelines without access to the pipeline generatrix is given. The necessity of modernizing methods based on determining the configuration of the pipeline axis from the soil surface with subsequent calculation of bending stresses based on the obtained data is substantiated. A mathematical model that allows to calculate the optimal parameters for surveying the axis of the pipeline from the soil surface for a pipeline of arbitrary configuration and depth, when planning a study, is proposed. Bench tests of the BITA-1 pipeline finder were carried out to determine the error in measuring the depth of the pipeline axis. It is proved that the deviations of the pipeline finder data relative to the true values in narrow depth intervals follow a normal distribution and do not change their sign. The confidence intervals of the error in determining the depth of the pipeline axis for the BITA-1 device are presented.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>изгибные напряжения</kwd>
        <kwd>напряженно-деформированное состояние</kwd>
        <kwd>магистральный трубопровод</kwd>
        <kwd>трассоискатель</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>bending stresses</kwd>
        <kwd>stress-strain state</kwd>
        <kwd>main pipeline</kwd>
        <kwd>pipeline finder</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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