<DIV align=justify> An international journal ‘Studia Geotechnica et Mechanica’ covers new developments in the broad areas of geomechanics as well as structural mechanics. The journal welcomes contributions dealing with original theoretical, numerical as well as experimental work. The following topics are of special interest: <OL> <LI>Constitutive relations for geomaterials (soils, rocks, concrete, etc.) </LI> <LI>Modeling of mechanical behaviour of heterogeneous materials at different scales </LI> <LI>Analysis of coupled thermo-hydro-chemo-mechanical problems </LI> <LI>Modeling of instabilities and localized deformation </LI> <LI>Experimental investigations of material properties at different scales </LI> <LI>Numerical algorithms: formulation and performance </LI> <LI>Application of numerical techniques to analysis of problems involving foundations, underground structures, slopes and embankment </LI> <LI>Risk and reliability analysis </LI> <LI>Analysis of concrete and masonry structures </LI> <LI>Modeling of case histories </LI></OL> Rejection Rate: <UL> <LI>40% </LI></UL> Archiving Sciendo archives the contents of this journal in <A href="https://www.portico.org/">Portico</A> - digital long-term preservation service of scholarly books, journals and collections. Plagiarism Policy The editorial board is participating in a growing community of <A href="https://www.crossref.org/services/similarity-check/">Similarity Check System's</A> users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. <HR style="HEIGHT: 3px; BACKGROUND: black"> The journal Studia Geotechnica et Mechanica, in years 2017-2018, received funding for the following tasks: <UL> <LI>Increase of foreign reviewers participation in the evaluation of the published content of Studia Geotechnica et Mechanica journal - financed under the agreement no. 602/P-DUN/2017 from the Ministry of Science and Higher Education funds for the Activity for Popularising Science. </LI> <LI>Raising the quality of the published content in Studia Geotechnica et Mechanica journal - financed under the agreement no. 602/P-DUN/2017 from the Ministry of Science and Higher Education funds for the Activity for Popularising Science. </LI></UL> <A href="http://www.nauka.gov.pl/en/"><IMG alt="Ministry of Science and Higher Education" src="https://www.degruyter.com/staticfiles/images/journals/ANRE_MNiSWpllogo.jpg"></A> </DIV>

The Journal of Wrocław University of Science and Technology

and AGH University of Science and Technology

Studia Geotechnica et Mechanica

In this paper, a simple generalization of Darcy’s law is proposed for the description of hydraulic properties of anisotropic porous materials. The coefficient of permeability is defined as a scalarvalued function of orientation. The principal directions of permeability are determined from a fabric descriptor specifying the distribution of average pore size. An example is provided for identification of material parameters, which is based on an idealized “pipe network model”. A procedure for defining the anisotropy in strength properties, which incorporates a conceptually similar approach, is also reviewed and an illustrative example is provided.

Abstract

McMaster University, Hamilton, Ont. Canada L8S 4L7

<article-title>Description of hydraulic and strength properties of anisotropic geomaterials</article-title>

Description of hydraulic and strength properties of anisotropic geomaterials

{"article-title":"Description of hydraulic and strength properties of anisotropic geomaterials"}

This study presents calculations results of thermal consolidation process of the porous medium with the rheological Kelvin-Voigt skeleton, obtained numerically with the use of Flex.PDE software. The investigated calculation scheme consisted of the porous column filled with a liquid. The vertical load was applied to the top surface of the column through a porous plate allowing the free flow of liquid through this surface. Numerical solution is based on compression of the sample at appropriately defined boundary conditions. The aim of this study was to describe the influence of external load and temperature gradient on the deformation tests progress at different values of three parameters: λ, <italic>rs </italic>and <italic>cv</italic>. The results obtained, in the context of further research, can also be used for the determination of the influence of other parameters of the state and model parameters on the process of thermo poroelasticity of Biot model with rheological skeleton.

Wrocław University of Technology, Institute of Mining, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Wrocław University of Technology, Institute of Geotechnics and Hydrotechnics, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

<article-title>Thermal consolidation of porous medium with a rheological kelvin–voigt skeleton</article-title>

Thermal consolidation of porous medium with a rheological kelvin–voigt skeleton

The paper presents an application of High Dimensional Model Representation (HDMR) to reliability assessment of a single pile subjected to lateral load. The purpose is to compare HDMR with some classical method based on response surface technique.

Wrocław University of Technology, Faculty of Geoengineering, Mining and Geology, Department of Mining and Geology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Wrocław University of Technology, Faculty of Civil Engineering, Institute of Geotechnics and Hydroengineering, Department of Engineering Foundations, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

<article-title>Application of HDMR method to reliability assessment of a single pile subjected to lateral load</article-title>

Application of HDMR method to reliability assessment of a single pile subjected to lateral load

This article deals with the question of theoretical description of behaviour of a single pile rested in a layered soil medium. Particular attention is paid to soil modulus which is used in calculation method for pile load-settlement curve. A brief analysis of the results obtained by laboratory tests to assess soil modulus and its nonlinear variability has been presented. The results of tests have been used in triaxial apparatus and resonant column/torsional shear device. There have also been presented the results of load-settlement calculation for a single pile under axial load with implementation of different models of soil modulus degradation. On this basis, possibilities of using particular kinds of laboratory tests in calculation procedure of foundation settlement have been presented as well as further developments of them.

University of Warmia and Mazury in Olsztyn, Chair of Geotechnics and Road Engineering, ul. Prawocheńskiego 19, 10-720 Olsztyn, Poland

<article-title>Use of the laboratory tests of soil modulus in modelling pile behaviour</article-title>

Use of the laboratory tests of soil modulus in modelling pile behaviour

{"article-title":"Use of the laboratory tests of soil modulus in modelling pile behaviour"}

DMT is one of the most popular methods of determining soil parameters needed to design a safe construction. Apart from the basic outcome parameter obtained from DMT measurements hydraulic conductivity (<italic>k</italic>) can be determined, previously proposed DMTA and DMTC methods were modified. The basic idea of the method is that the return of the deformed membrane is due to soil and water pressure. In the proposed SASK method the hydraulic conductivity of the soil is determined by measuring time-varying pressures <italic>A </italic>and <italic>C</italic>. Research has been performed at the experimental site of the Department of Geotechnical Engineering, WULS. In the paper, the assumptions of the new method for determining the hydraulic conductivity <italic>k </italic>are presented. The proposed method allows us to determine a reliable value for the hydraulic conductivity of clay soils. Using this method, the value of hydraulic conductivity (<italic>k </italic>= 5,47*10-11) is similar to the results of BAT, DMTA and laboratory measurements.

Warsaw University of Life Sciences, Department of Geotechnical Engineering, ul. Nowoursynowska 159, 02-776 Warsaw, Poland

<article-title>Sask method for testing hydraulic conductivity of soils by flat dilatometer (dmt)</article-title>

Sask method for testing hydraulic conductivity of soils by flat dilatometer (dmt)

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Managing Editor ADRIAN RÓŻAŃSKI, Wrocław University of Science and Technology, Poland Editor-in-Chief MAREK CAŁA, AGH University of Science and Technology, Poland DARIUSZ ŁYDŻBA, Wrocław University of Science and Technology, Poland WOJCIECH PUŁA, Wrocław University of Science and Technology, Poland Associate Editors GIOVANNA VESSIA, Universitá degli studi "G.d’Annunzio" di Chieti-Pescara, Italy PHILIPPE COSENZA, Université de Poitiers, France IGOR SEVOSTIANOV, New Mexico State University, USA Honorary Editor RYSZARD J. IZBICKI, Wrocław University of Science and Technology, Poland Editorial Advisory Board ZENON MRÓZ - Chairman, Polish Academy of Sciences, Poland ANDRZEJ BATOG, Wrocław University of Science and Technology, Poland FRANCESCO CAFARO, Politecnico di Bari, Bari, Italy FRANCESCA CASINI, Università di Roma Tor Vergata, Roma, Italy EUGENIUSZ DEMBICKI, Technical University of Gdańsk, Poland ANDRZEJ DRESCHER, University of Minnesota, USA ALBERT GIRAUD, Université de Lorraine, Vandoeuvre-les-Nancy, France GERD GUDEHUS, Universität Fridericiana, Germany JERZY HOŁA, Wrocław University of Technology, Poland TOMASZ HUECKEL, Duke University, USA PIOTR KONDERLA, Wrocław University of Science and Technology, Poland DJIMÉDO KONDO, Pierre and Marie Curie University, Paris, France ZBIGNIEW LECHOWICZ, Warsaw University of Life Sciences - SGGW, Poland MAREK LEFIK, Lodz University of Technology, Poland RADOSŁAW MICHAŁOWSKI, University of Michigan, Ann Arbor, USA ZBIGNIEW MŁYNAREK, Poznań University of Life Sciences, Poland TREVOR ORR, Department of Civil, Structural & Environmental Engineering, Ireland MARTIN OSTOJA-STARZEWSKI, University of Illinois at Urbana-Champaign, USA ALESSANDRO PAGLIAROLI, University of Chieti-Pescara, Italy STANISŁAW PIETRUSZCZAK, McMaster University, Canada THOMAS ROUGELOT, Laboratory of multiscale and multiphysics mechanics (LaMcube), Villeneuve d'Ascq, France JIAN-FU SHAO, University of Lille, Villeneuve d’Ascq, France ANDRZEJ TRUTY, Cracow University of Technology, Poland ZHANG WENGANG, Chongqing University, China Editorial Office Secretary AGNIESZKA STOPKOWICZ, AGH University of Science and Technology, Poland JOANNA PIECZYŃSKA-KOZŁOWSKA, Wrocław University of Science and Technology, Poland MARCIN CHWAŁA, Wrocław University of Science and Technology Webmaster MAREK KAWA, Wrocław University of Science and Technology, Poland Address ul. Wybrzeże Wyspiańskiego 27 50-370 Wrocław POLAND <A href="mailto:sgem@pwr.wroc.pl">sgem@pwr.wroc.pl</A> Publisher De Gruyter Poland Bogumiła Zuga 32A Str. 01-811 Warsaw, Poland

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Volume 34 (2012): Issue 3 (October 2012)

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