- Department of Reinforced Concrete Structures and Geotechnics
- Department of Construction Management and Real Estate
- Department of Building Materials and Fire Safety
- Department of Applied Mechanics
- Department of Steel and Composite Structures
- Institute of Building Materials
- Institute of Building and Bridge Structures
- Institute of Sustainable Construction
- Applied Laboratory of Buildings, Constructions and Materials
- Laboratory of Building Structures and Geotechnics
- Laboratory of Structural Models
Research laboratory of Geotechnical Engineering
Specific feature of Geotechnics in research as well in its interaction with study (bachelor, master and doctoral) process is the close relationship with experimental investigations, further validation with theoretical-numerical simulations. The research-study process in Department of Geotechnical Engineering is realized via its subdivisions: Research Laboratory of Geotechnical Engineering and Laboratory of Geotechnics and Laboratory of Geotechnics.
Shortly on historical items. Research Laboratory of Geotechnical Engineering was founded by prof. Jonas Šimkus, who long period was the head and scientific supervisor further the head was eng. Liudas Furmonavičius. The following heads of the Laboratory are: 2002 – 2003. dr. Linas Gabrielaitis, 2003 – 2008, dr. Vytautas Kuliešius, 2008 – 2009, prof. dr. Arnoldas Norkus, 2009 – 2012 eng. Romualdas Milvydas. Since 2012 the head of Laboratory is prof. dr. Arnoldas Norkus. Since 2014 Research Laboratory of Geotechnical Engineering is subdivision of Research Institute of Building structures at faculty of Civil Engineering.
The research topics of Research Laboratory of Geotechnical Engineering can be divided into the following groups:
- Modeling of microstructural physical and mechanical properties of soils, validation with theoretical and experimental test results;
- Modeling of stress and strain fields of soil, taking into account peculiarities of boundary conditions adequate to geotechnical situations;
- Innovative methods of analysis and investigation of structures and basement;
- Innovative geotechnical technologies
Shortly on historical items. Research Laboratory of Geotechnical Engineering was founded by prof. Jonas Šimkus, who long period was the head and scientific supervisor further the head was eng. Liudas Furmonavičius. The following heads of the Laboratory are: 2002 – 2003. dr. Linas Gabrielaitis, 2003 – 2008, dr. Vytautas Kuliešius, 2008 – 2009, prof. dr. Arnoldas Norkus, 2009 – 2012 eng. Romualdas Milvydas. Since 2012 the head of Laboratory is prof. dr. Arnoldas Norkus. Since 2014 Research Laboratory of Geotechnical Engineering is subdivision of Research Institute of Building structures at faculty of Civil Engineering.
The research topics of Research Laboratory of Geotechnical Engineering can be divided into the following groups:
- Modeling of microstructural physical and mechanical properties of soils, validation with theoretical and experimental test results;
- Modeling of stress and strain fields of soil, taking into account peculiarities of boundary conditions adequate to geotechnical situations;
- Innovative methods of analysis and investigation of structures and basement;
- Innovative geotechnical technologies
Experimental in-situ and numerical investigations
• Sampling of undisturbed soil from various depths, pore pressure measuring, monitoring of water table;
• Geotechnical field investigations;
• Compaction control of basement;
• Pile integrity test;
• Geophysical measurements to evaluate sedimentation character;
• CPT and DPT tests (150 kN);
• Static test of footing (2000 kN);
• Dynamic test of footing;
• Analysis of stress and strain state of base;
• Evaluation of strength and reliability of base;
• Measurement of settlements and numerical analysis (numerical simulation);
• Prognostication of settlements taking into account other footings;
• Analyzing cracking of buildings related with base deformation (reasoning and recommendation of stabilization);
• Evaluation of base behavior related with cyclic effects and resulting damages, modelling of preventive means.
• Geotechnical field investigations;
• Compaction control of basement;
• Pile integrity test;
• Geophysical measurements to evaluate sedimentation character;
• CPT and DPT tests (150 kN);
• Static test of footing (2000 kN);
• Dynamic test of footing;
• Analysis of stress and strain state of base;
• Evaluation of strength and reliability of base;
• Measurement of settlements and numerical analysis (numerical simulation);
• Prognostication of settlements taking into account other footings;
• Analyzing cracking of buildings related with base deformation (reasoning and recommendation of stabilization);
• Evaluation of base behavior related with cyclic effects and resulting damages, modelling of preventive means.
Laboratory investigation of soils and specialized geotechnical services
• Laboratory tests to identify physical and mechanical properties of soils. Shear strength parameters (also via triaxial testing of small and large samples and static and dynamic loads), compaction test (Proctor test), permeability test, size distribution, other;
• Micro-structural analysis of soils.
• State analysis of foundations and underground structures, recommendations;
• Evaluation of design projects (also under complicate geotechnical conditions)
• Consulting in design and application and codified regulations;
• Testing of footings and base of footings in laboratory pit of large dimensions (6 x 7 x 6 m); 600 kN vertical and 200 kN lateral loading.
• Micro-structural analysis of soils.
• State analysis of foundations and underground structures, recommendations;
• Evaluation of design projects (also under complicate geotechnical conditions)
• Consulting in design and application and codified regulations;
• Testing of footings and base of footings in laboratory pit of large dimensions (6 x 7 x 6 m); 600 kN vertical and 200 kN lateral loading.
Equipment for Investigation In-situ
Self-propelled drilling assembly CME 55 (USA), mounted on Renault Kerax 38019 basis
„Pagani Geotechnical equipments“ probe set TG63-150 for soil research
Dynamic Stamp
Static Stamp
Pressure, Force, Displacements and Ground Water Level measuring system
Pile Dynamics Testing Equipment
Pile Integrity Testing Equipment
Equipment for Physical Properties of Soil
Equipment for determination of particle size distribution
Metler Toledo MS204S FACT balance
Drying oven with forced air change
Froewag Ltd automatic compactor for Proctor test
Specifications
Equipment for investigation of physical propertiesEquipment for Mechanical Properties of Soil
Fully automatic static triaxial testing equipment for saturated and unsaturated test with 50mm and 100mm size samples
Fully automatic dynamic triaxial testing equipment for saturated and unsaturated test with 150mm size samples
Fully automatic simple shear testing equipment
Fully automatic simple shear testing equipment for G modulus investigation
Fully automatic direct shear testing equipment
Fully automatic consolidation testing equipment on saturated and unsaturated soil specimens by controlling the pore water and pore air pressure
Specifications
GmbH static triaxial testingEquipment for Foundations Testing
Loading Frame
Force and Displacements Measuring System
Investigation of soil stiffness and other parameters via geophysical methods
Radar System 2D/3D
Magnetometer
Earth resistance (Electronic tomography)
GNSS receiver (GPS system)
Specifications
Investigations via geophysical methodsSpecialized set for microstructural investigation of soils
Scanning electron microscope
Diascopic/episcopic polarized microscope
Specifications
Specialized set for microstructural investigation of soilsGEO 5
Geotechnical software package GEO5 is a simple and powerful tool for the solution of geotechnical problems. The programs are based on traditional analytical methods and the Finite Element Method (FEM). GEO5 package consists from different sets: Geotechnical Analyses by Finite Element Method, Foundation Design, Sheet Piling design, Retaining Wall Design; Stability Analysis, Underground Structures; Settlement analyses; Digital Terrain Modelling (DTM).
PLAXIS 3D FOUNDATION
PLAXIS is a finite element program for geotechnical applications in which soil models are used to simulate the soil behaviour. The PLAXIS code and its soil models have been developed with great care. Although a lot of testing and validation have been performed, it cannot be guaranteed that the PLAXIS code is free of errors. Moreover, the simulation of geotechnical problems by means of the finite element method implicitly involves some inevitable numerical and modeling errors. The accuracy at which reality is approximated depends highly on the expertise of the user regarding the modeling of the problem, the understanding of the soil models and their limitations, the selection of model parameters, and the ability to judge the reliability of the computational results. Hence, PLAXIS may only be used by professionals that possess the aforementioned expertise. The user must be aware of his/her responsibility when he/she uses the computational results for geotechnical design purposes. The PLAXIS organization cannot be held responsible or liable for design errors that are based on the output of PLAXIS calculations.
STIMAN
There is a great need in solid structure information in different branches of science and industry. The radically new method and apparatus for full range and reliable quantitative analysis have been worked out by the scientists of Moscow State University. The major advantage of the method suggested is the opportunity to use for the analysis a small sample (less than 0.5 cm3), which can be easily selected from any object under investigation, avoiding a destruction of its original structure. The essence of the method is the analysis of SEM images taken from the surface of the sample, prepared following a special technique. STIMAN differs significantly in principle from the existing image processing systems. Unlike them, where the analysis is being made under the only fixed magnification, our method enables to analyze sample which structure elements' size varies within a very wide range (from nanometers up to millimeters). STIMAN involves in the analysis a sequence of diverse scale images of sample surface followed by the processing of total information obtained. STIMAN software allows to choose SEM mode, the object of the investigation (particles or pores), digitizing of the halftone SEM image (256 grayscale levels), and transform it into the binary form. It is possible to adjust the optimal discrimination level, to find the image elements and determining their squares, perimeters and form factors. There are special possibilities to estimate structure elements' orientation in space, to calculate porosity, pore tortuosity and specific area values. A special statistic-processing program has been developed to graph structure elements' distribution histograms according to various parameters: areas, perimeters, equivalent diameters, shape coefficients form index; to obtain a dependence of pores and particles shape from their areas. The program provides the possibility to change the number of intervals on distribution histograms, to limit and detail the desired subintervals of the investigated parameter changes, to determine separate groups of structural elements on histograms. The results of statistical processing are available for a customer in any required form. The method developed is of the greatest interest for the specialists in petroleum geology, hydrogeology and environmental protection. It gives the possibility to assess pores hydraulic radius, to calculate rock permeability and to graph histograms of partial pores contribution in filtration.
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