Now showing items 1-10 of 10

  • Ageing effects on the stiffness behaviour of a microbiologically treated and compacted soil 

    Morales, Laura; Romero Morales, Enrique Edgar; Pineda Jiménez, Jubert Andrés; Garzon, E.; Giménez, Antonio (Springer, 2012)
    Conference report
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    The paper describes an experimental study aimed at evaluating the evolution of some mechanical properties, specifically small-strain stiffness and unconfined compressive strength, induced by ageing after a microbiological ...
  • A new high-pressure triaxial apparatus for inducing and tracking hydro-mechanical degradation of clayey rocks 

    Pineda Jiménez, Jubert Andrés; Romero Morales, Enrique Edgar; Alonso Pérez de Agreda, Eduardo; Pérez Revilla, Tomás (2014-11)
    Article
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    This paper presents the development of a new high-pressure triaxial apparatus specifically prepared for inducing and tracking the degradation of clayey rocks. Total suction—used to induce the hydraulic degradation—is applied ...
  • Effects of relative humidity cycling on the hydro-mechanical behaviour of two clayey rocks from North-East Spain 

    Pineda Jiménez, Jubert Andrés; Alonso Pérez de Agreda, Eduardo (CRC Press, 2013)
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    The paper describes the results of an experimental research aimed at studying the effects of relative humidity cycling on the degradation phenomena of two clayey rocks from North-East Spain, with particular emphasis on ...
  • Effects of relative humidity cycling on the tensile strength of a claystone 

    Pineda Jiménez, Jubert Andrés; Romero Morales, Enrique Edgar; Alonso Pérez de Agreda, Eduardo (American Society of Civil Engineers (ASCE), 2018)
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    Selected papers from the Second Pan-American Conference on Unsaturated Soils, held in Dallas, Texas, November 12–15, 2017. Sponsored by the International Society of Soil Mechanics and Geotechnical Engineering and the ...
  • Foundation of a gravity dam on layered soft rock: shear strength of bedding planes in laboratory and large "in situ" tests 

    Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè; Pineda Jiménez, Jubert Andrés (2014-12)
    Article
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    A 100 m high gravity dam (Castrovido dam, Burgos, Spain) is founded on a soft Weald red claystone with inter-bedded sandstone strata. Claystone weathering was identified in vertical and horizontal profiles of water content ...
  • From saturated to unsaturated conditions and vice versa 

    Lloret Cabot, Marti; Wheeler, Simon J.; Pineda Jiménez, Jubert Andrés; Romero Morales, Enrique Edgar; Sheng, Daichao (2018-02)
    Article
    Open Access
    Representing transitions between saturated and unsaturated conditions, during drying, wetting and loading paths, is a necessary step for a consistent unification between saturated and unsaturated soil mechanics. Transitions ...
  • Influence of soil microstructure on air permeability in compacted clay 

    Viet, Hoang Nguyen; Pineda Jiménez, Jubert Andrés; Romero Morales, Enrique Edgar; Sheng, Daichao (Thomas Telford, 2020-01)
    Article
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    This paper describes an experimental study aimed at evaluating the influence of soil microstructure on air permeability in compacted clay. Air permeability measurements, estimated using the gas pressure decay method, were ...
  • Microstructural evaluation of the water sensitivity of clayey rocks 

    Pineda Jiménez, Jubert Andrés; Romero Morales, Enrique Edgar; Tarragó, Dani; Tauler, Esperança; Alonso Pérez de Agreda, Eduardo (American Society of Civil Engineers (ASCE), 2013)
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    The paper presents both macroscopic and microstructural evidence of the water sensitivity of a low porosity clayey rock from Northern Spain. Particular emphasis is focused on the effects of water sensitivity at micro level. ...
  • Shear strength degradation in claystones due to environmental effects 

    Pineda Jiménez, Jubert Andrés; Romero Morales, Enrique Edgar; De Gracia, Manuel; Sheng, Daichao (Thomas Telford, 2014-05)
    Article
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    This note explores the influence of environmental effects, as those induced by cyclic changes in relative humidity, on the degradation of the shear strength parameters in Lilla claystone, a low-porosity clayey rock from ...
  • Testing block samples from silty deposits 

    Pineda Jiménez, Jubert Andrés; Arroyo Alvarez de Toledo, Marcos; Sau Valenzuela, Núria; Gens Solé, Antonio; Pérez, Norma (2012)
    Conference report
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    The paper describes the results of a comprehensive experimental program aimed to characterize block samples of silty deposits obtained from the deltaic zone of the Llobregat River ( Barcelona).Undisturbed block samples ...