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Sci."],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:sec>\n                <jats:title>Abstract<\/jats:title>\n                <jats:p>Undrained shear strength plays a fundamental role on the behaviour of clays. In overconsolidated clays, this parameter is largely influenced by test conditions, namely consolidation stress. <jats:italic>\u201cPrazeres<\/jats:italic> Clay<jats:italic>\u201d<\/jats:italic> is a Miocene overconsolidated formation, that can be found in a significant part of Lisbon area. Over the last decades a number of very relevant constructions have generated a large database for physical and mechanical properties of Miocene clays. Included in a broader study at the Faculty of Engineering of Porto University about Miocene clay\u2019s physical and mechanical properties, existing data was gathered, treated and critically analysed, in order to establish a useful framework for geotechnical designers. This paper presents the results obtained for undrained shear strength, obtained from triaxial tests and M\u00e9nard Pressuremeter tests. It addresses the main difficulties associated with test\u2019s interpretation and presents a discussion on how theoretical values relate to experimental ones. The paper proposes a range of variation for <jats:italic>Prazeres<\/jats:italic> Clay\u2019 undrained shear strength based on a significant amount of test results, that is considered to be useful for geotechnical design.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>\n                           <jats:bold>Article Highlights<\/jats:bold>\n                        <\/jats:title>\n                <jats:p><jats:list list-type=\"bullet\">\n                  <jats:list-item>\n                    <jats:p>Undrained Shear strength is a relevant parameter for clays, and is usually derived from triaxial tests<\/jats:p>\n                  <\/jats:list-item>\n                  <jats:list-item>\n                    <jats:p>For overconsolidated clays, this parameter is highly dependent on preconsolidation stress, and on its relation to in situ stress.<\/jats:p>\n                  <\/jats:list-item>\n                  <jats:list-item>\n                    <jats:p>Based on a significant set of data, the paper presents a simple methodology for estimating this parameter<\/jats:p>\n                  <\/jats:list-item>\n                <\/jats:list><\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s42452-021-04832-w","type":"journal-article","created":{"date-parts":[[2021,12,11]],"date-time":"2021-12-11T08:02:30Z","timestamp":1639209750000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Undrained shear strength of Lisbon Miocene clay: a reappraisal based on triaxial and pressuremeter test results"],"prefix":"10.1007","volume":"4","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4707-0685","authenticated-orcid":false,"given":"Mafalda","family":"Lopes Laranjo","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2661-9357","authenticated-orcid":false,"given":"Manuel","family":"Matos Fernandes","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,12,11]]},"reference":[{"key":"4832_CR1","first-page":"183","volume":"14","author":"MT Antunes","year":"2000","unstructured":"Antunes MT, Legoinha P, Cunha PP, Pais J (2000) High resolution stratigraphy and miocene facies correlation in Lisbon and Set\u00fabal Peninsula (Lower Tagus basin, Portugal). 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The authors have no financial or proprietary interests in any material discussed in this article.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"The authors have no conflicts of interest to declare that are relevant to the content of this article. All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest or non-financial interest in the subject matter or materials discussed in this manuscript.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}}],"article-number":"11"}}