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3 451 (0,178s) •

Project

Analysis of failure development of rock samples in deformation process by physical methods (GA105/02/0895)

Study of the process of propagation of failure in rock samples in laboratory of rock sample in course of experiment will be carried-out at a state of uniaxial stress by measurement of volumetric changes of rock...

DH - Báňský průmysl včetně těžby a zpracování uhlí

  • 2002 - 2004
    • •
  • 2 029 tis. Kč
    • •
  • 919 tis. Kč
    • •
  • GA ČR
Project

Factors influencing the origin of the acoustic emission in rock samples in triaxial stress conditions (GA105/00/P064)

the origin of the acoustic emission from rock samples during triaxial loading properties will be tested on samples of sedimentary rocks from the Czech part knowledge of the rock bëhaviour during uniaxial ...

DH - Báňský průmysl včetně těžby a zpracování uhlí

  • 2000 - 2001
    • •
  • 443 tis. Kč
    • •
  • 318 tis. Kč
    • •
  • GA ČR
Project

Laboratory study of the fracturing of rock samples under the long-term controlled deformation and loading (GA205/06/0906)

The proposed research project is aimed at studying the process of rock stress during long-term sample loading. The project's starting point consists in a knowledge concerning stress-strain properties of rocks from the ultra...

DC - Seismologie, vulkanologie a struktura Země

  • 2006 - 2008
    • •
  • 2 037 tis. Kč
    • •
  • 2 037 tis. Kč
    • •
  • GA ČR
Project

Investigation of the texture of rocks by ultrasonic waves and neutron diffraction (GA205/97/0905)

passing trough the rock sample. The investigation will be carried out on a set between the texture of rocks and their physical properties, especially the kinematic by polycrystalline monomineral aggregates and, finally, co...

DB - Geologie a mineralogie

  • 1997 - 1999
    • •
  • 2 927 tis. Kč
    • •
  • 1 599 tis. Kč
    • •
  • GA ČR
Project

Effect of rock microfabric on the brittle failure process of rocks stressed under simulated laboratory conditions (GA205/04/0088)

-state of the rock sample or rock mass, respectively. It is supposed that independent assisted image analysis, visualisation of brittle fractures in deformed rock samples rock microfabric and mode...

DB - Geologie a mineralogie

  • 2004 - 2006
    • •
  • 2 599 tis. Kč
    • •
  • 1 499 tis. Kč
    • •
  • GA ČR
Project

3-D investigation of rock fabric by deformation measurement, ultrasonic sounding, neutron diffraction and petrographic image analysis (GA205/01/1430)

The purpose of the Project is the study of the fabric of rocks, generated under different p-T conditions. The studied samples come from the natural outcrops of these rocks at the Earth's surface (ultramafites - from the Ivr...

DB - Geologie a mineralogie

  • 2001 - 2003
    • •
  • 3 935 tis. Kč
    • •
  • 1 584 tis. Kč
    • •
  • GA ČR
Project

Evaluation of critical stress-strain state of rocks by ultrasonic emission (laboratory study) (GA205/00/1143)

to the use of ultrasonic emission to describe the deformation of a loaded rock massif in terms of physics. The research will deal with various types of rock sample loadingThe problem of stability of a rock massif ...

DB - Geologie a mineralogie

  • 2000 - 2002
    • •
  • 2 457 tis. Kč
    • •
  • 1 689 tis. Kč
    • •
  • GA ČR
Project

Seismic and rheological features of the lower crustal rocks and their contribution to the anizotropy of the litosphere (GP205/02/D139)

microstructures and elastic anizotropy of the rocks which were metamorphosed anddeformedin the lower-crustal conditions. We propose the sampling of lower-crustal rocks from rocks against strain. The Earth´s lower ...

DB - Geologie a mineralogie

  • 2002 - 2005
    • •
  • 1 220 tis. Kč
    • •
  • 676 tis. Kč
    • •
  • GA ČR
Project

Relation between elastic moduli determined by seismic methods in laboratory and in the field (IAA300130906)

propagation in magmatic rocks, specification of dynamic moduli of these rocks. Laboratorytesting of sphere samples is based on ultrasonic sounding and monitoring of velocity of sensors enables to determine elastic anisotro...

DC - Seismologie, vulkanologie a struktura Země

  • 2009 - 2011
    • •
  • 1 643 tis. Kč
    • •
  • 1 643 tis. Kč
    • •
  • AV ČR
Project

Research of rheological behavior of rocks at static and vibrational loading. (GP105/08/P307)

The samples of rock will be loaded at rheological mode as static as vibrational, on special equipment MTS 816 Rock Test System. During examination will be recorded time, force, deformation and eventually other parameters. O...

DH - Báňský průmysl včetně těžby a zpracování uhlí

  • 2008 - 2010
    • •
  • 617 tis. Kč
    • •
  • 617 tis. Kč
    • •
  • GA ČR
  • 1 - 10 out of 3 451