Year 2023

• Spray-BasedMethodforProtectingandRestoringHistoricAdobe WallsUsingNanomontmorilloniteClay

  Publication

  • M. Khasar
  • H. Niroumand
  • M. Afsharpour
  • L. Bałachowski

  - ACS NANO - Year 2023

  Restoringandprotectinghistoricbuildingsworldwideareimportant becauseheritagebuildingsarerecordsofthecivilizationsofvariouscountries.Herein, nanotechnologywasusedtorestorehistoricadobewalls.AccordingtotheIranPatent andTrademarkOffice(IRPATENT)102665,nanomontmorilloniteclayhasbeen selectedasanaturalandcompatiblematerialwithadobe.Furthermore,ithasbeenused asnanospraytobeaminimallyinvasivemethodtofillcavitiesandcracksintheadobe surface.Variouspercentagesofnanomontmorilloniteclay(1−4%)intheethanolsolvent...

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Year 2014

• STABILITY OF THE INNER SLOPE OF THE POLISH DREDGDIKES RESEARCH DIKE AT STATIONARY FLOW

  Publication

  • L. Bałachowski

  - Year 2014

  For long duration of the flood the water table can appear on the slope with a problem of out-wash in the case of sand type dike. If the dike corps is covered with less permeable layer some additional push-off forces and shearing can rise in the cover. In both cases the micro stability of the inner slope should be considered at normative high water for homogeneous sand type dike or sand type dike with less permeable covers. The...

• SUBSOIL CHARACTERISTICS OF THE VISTULA RIVER DIKES

  Publication

  • L. Bałachowski
  • Z. Sikora

  - Year 2014

  The results of CPTU tests are used to determine the strength parameters of a dike subsoil. Stress state and stress history of the subsoil under the flood embankment was evaluated with CPTU and DMT tests. Normally consolidated soil was found under the central part of the dike, while the subsoil near the dike toe is found to be overconsolidated. Due to consolidation the undrained shear strength of the subsoil under the central part...

Year 2021

• Statistical evaluation of physical and index properties of Vistula Marshlands deltaic soft soils

  Publication

  • J. Konkol
  • L. Bałachowski

  - IOP Conference Series: Earth and Environmental Science - Year 2021

  This paper provides statistical evaluation of physical and index parameters of the Vistula Marshlands deltaic soft soils using three datasets. Soft soils from the Vistula Marshlands are grouped into the four categories: (1) silty/sandy loams, (2) organic clays, (3) organic silts and (4) peats. Variability of basic and derivative physical properties as well as Atterberg's limits and plasticity index is studied. It is found that...

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Year 2005

• Strength characteristics of tyre chips-sand mixtures.

  Publication

  • P. Gotteland
  • S. Lambert
  • L. Bałachowski

  - Year 2005

  Badania w aparacie trójosiowego ściskania przy różnej zawartości wagowej kawałków zużytych opon oraz różnym ich ułożeniu w próbce piasku. Badania prowadzono przy dowolnym ułożeniu tych elementów, umieszczeniu ich poziomo oraz w systemie mieszanym. Wyznaczono optymalną zawartość kawałków opon w próbce piasku, przy której występowała maksymalna wytrzymałość na ściskanie.

Year 2018

• Strength parameters of deltaic soils determined with CPTU, DMT and FVT

  Publication

  • L. Bałachowski
  • K. Mikina (formerly: K. Międlarz)
  • J. Konkol

  - Year 2018

  This paper presents the results of soil investigation in soft, normally consolidated organic soil in the estuary of Vistula river. The analysis concerns clayey mud and peat layers interbedded with loose to medium-dense sands. Several Cone Penetration Tests with pore water measurement (CPTU), Dilatometer Tests (DMT) and Field Vane Tests (FVT) were performed on the testing site. The cone factor Nkt was estimated using the results...

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Year 2006

• Use of calibration chamber as a large triaxial apparatus

  Publication

  • L. Bałachowski

  - Archives of Civil and Mechanical Engineering - Year 2006

  Modelowanie wycinka kolumny żwirowej o wysokości 1 m w komorze kalibracyjnej. Badania przeprowadzono przy różnym naprężeniu bocznym w komorze. Kolumnę poddano obciążeniu pionowemu przy odkształceniu pionowym do 2%. Określono jej parametry wytrzymałościowe oraz moduły odkształcenia przy obciążeniu oraz w cyklach odciążenie-powtórne obciążenie.

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Year 2008

• Use of CPTU and DMT in rehabilitation of flood embankments

  Publication

  • L. Bałachowski

  - Studia Geotechnica et Mechanica - Year 2008

  Zastosowanie badań CPTU i DMT do oceny stanu wałów przeciwpowodziowych Żuław Wiślanych oraz do koncepcji projektowania ich wzmocnienia i uszczelnienia. Wyznaczenie wytrzymałości gruntów słabych pod wałem z oszacowaniem wskaźnika prekonsolidacji. Uwzględnienie kształtu krzywej dyssypacji nadwyżki ciśnienia wody w porach gruntu generowanej podczas wciskania końcówki CPTU do oceny współczynnika filtracji oraz historii naprężenia w...

Year 2015

• Vibroflotation Control of Sandy Soils using DMT and CPTU

  Publication

  • L. Bałachowski
  • N. Kurek

  - Year 2015

  Vibroflotation is a typical improvement method for the cohesionless deposits of high thickness. The compaction method was applied to densify sandy deposits in Gdynia Port. Compaction control was verified with CPTU and DMT tests. Some examples of interpretation of soundings in pre-treated and compacted sands are shown. The classification diagrams are given for pre-treated and compacted sand. The stress history of the deposits is...