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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">11109</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">PHYSIC-MECHANICAL CHARACTERIZATION OF THE CLAYEY SOILS OF ISSABA DEPRESSION IN THE SOUTH-EAST OF BENIN</article-title><trans-title-group xml:lang="ru"><trans-title>ФИЗИКО-МЕХАНИЧЕСКИЕ ХАРАКТЕРИСТИКИ ГЛИНИСТЫХ ГРУНТОВ РАЙОНА ИССАБА НА ЮГО-ВОСТОКЕ БЕНИНА</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>AGBELELE</surname><given-names>Koffi J</given-names></name><name xml:lang="ru"><surname>АГБЕЛЕЛЕ</surname><given-names>КоффиДж J</given-names></name></name-alternatives><email>agbelelekoffi@yahoo.fr</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gerard</surname><given-names>GBAGUIDI AISSE</given-names></name><name xml:lang="ru"><surname>АЙССЕ</surname><given-names>Жерар ГБАГУИДИ</given-names></name></name-alternatives><email>gbaguidi.gerard@yahoo.fr</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Abalo</surname><given-names>P' KLA</given-names></name><name xml:lang="ru"><surname>КЛА</surname><given-names>Абало П</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gerard</surname><given-names>DEGAN</given-names></name><name xml:lang="ru"><surname>ДЕГАН</surname><given-names>Жерар</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Laboratory of Energetics and Mechanics Applied (LEMA)</institution></aff><aff><institution xml:lang="ru">EPAC, UAC, Cotonou, Benin</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Ecole Nationale Superieure d'Ingenieurs (ENSI) de l'Universite de Lome (UL)</institution></aff><aff><institution xml:lang="ru">ENSI de l'Universite de Lome, Lome, Togo</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2016-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2016</year></pub-date><issue>1</issue><issue-title xml:lang="en">NO1 (2016)</issue-title><issue-title xml:lang="ru">№1 (2016)</issue-title><fpage>66</fpage><lpage>76</lpage><history><date date-type="received" iso-8601-date="2016-09-12"><day>12</day><month>09</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2016, Structural Mechanics of Engineering Constructions and Buildings</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2016, Строительная механика инженерных конструкций и сооружений</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</copyright-holder><copyright-holder xml:lang="ru">Строительная механика инженерных конструкций и сооружений</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/11109">https://journals.rudn.ru/structural-mechanics/article/view/11109</self-uri><abstract xml:lang="en">The instability of soils due to the swelling phenomenon is among others at the origin of enormous damages in civil engineering works, such the deformations, the cracking, the tear- ing, the wear of the rotation surface and the destruction of the foundations observed at the infrastructures level (housing, socio-community centers, covered road or not). This phenome- non is a very complex and particularly threatening situation for the different construction projects, in a lot of regions of the world where these types of soilsare met and at the level of which we note premature damages of the works. It urges then to make specific arrangements during the execution of infrastructures. The phenomenon described above is also present in Benin mainly in the depression of Lama.</abstract><trans-abstract xml:lang="ru">Неустойчивость грунта под основанием из-за выпучивания, как и многие другие яв- ления, вызывает огромные разрушения в строительных работах из-за деформирования, растрескивания, образования трещин и разрушения фундаментов инфраструктур (жи- лищных, социально-общественных центров, дорог асфальтированных или не асфальти- рованных). Это явление очень сложное и особенно вызывает угрожающие ситуации для различ- ных строительных проектов во многих регионах мира, где эти типы основания сущест- вуют и на уровне которых отмечаются преждевременные нарушения работ. Эти явления требуют введения конкретных мероприятий по ходу выполнения строительных работ. Описанное выше явление присутствует в Бенине в основном в ложбине Лама</trans-abstract><kwd-group xml:lang="en"><kwd>physic-mechanical characterization</kwd><kwd>soil</kwd><kwd>clay</kwd><kwd>the south-east of Benin</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>физико-механические характеристики</kwd><kwd>грунт</kwd><kwd>глина</kwd><kwd>юго-восток Бенина</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>M. SLANSKY, (1962).Contribution a l'etude geologique du bassin sedimentaire cotier du DAHOMEY et du TOGO. Technip, Paris, France.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>A. 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