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Ingeniería, investigación y tecnología

Print version ISSN 1405-7743

Abstract

ORDONEZ-RUIZ, Jorge; AUVINET-GUICHARD, Gabriel  and  JUAREZ-CAMARENA, Moisés. Subsoil Characterization and Analysis of Geotechnical Risks Associated to the Expansive Clays of Tuxtla Gutiérrez City. Ing. invest. y tecnol. [online]. 2015, vol.16, n.3, pp.453-470. ISSN 1405-7743.

An investigation was performed for subsurface characterization and analysis of geotechnical risks in the City of Tuxtla Gutierrez. Surveys and tests were done to determine the rate and mechanical properties of expansive clays strata found in geotechnical area "A". Direct and indirect geotechnical techniques were used to identify and classify the clays and to determine their expansion potential. Geostatistical tools were used for determining the spatial variation of the water content and expansion parameters of clays. Two methods were proposed, first to identify and classify the potential expansion of the clays and second to identify and classify the types of geotechnical risks. Geotechnical risk maps were constructed. Stabilized product of the mixture of swelling clay and granzón, geomaterial 1:1, which reduces the unit expansion of 25% to 75% is proposed. The results of this research will contribute to solving the problem of structural failures and loss of multimillion civil engineering works that have been registered in the city in the last four decades.

Keywords : characterization; geotechnical risks; expansive clays; spatial variation; granzón.

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