... Abstract: The results obtained in the project FR-TI3/325 – Research on a thermally loaded rock - perspectives of underground thermal energy storage are presented in this paper. The project was designed to study thermal energy flow in granitic rock (tonalite), both in terms of efficiency...

... and the properties of the rock mass [2]. In actual fact, a trouble that excavation efficiency was deteriorated and the rate of tunnel advance was reduced occurred in a granite rock mass, which one cause was interpreted as the numerous micro cracks in the grains of rock-forming minerals [3]. However, the properties...

... for an island near Taiwan. The island surface and subseabed consist mainly of competent granitic rock. The island presents several challenges to be accommodated limited useable area, remote location, and potential for high seawater elevations. The preliminary site investigation provided data from vertical...

... ABSTRACT ABSTRACT Deformations during heating and cooling of three drifts in granitic rock were influenced by the presence of faults and shear zones. Thermal deformations were significantly larger in sheared and faulted zones than where the rock was jointed, but neither sheared nor faulted...

.... This work is reported in Refs. (3) and (4). Reservoir Characterization structural geology Upstream Oil & Gas hard rock drill pipe Rock mechanics thermal spallation excavation spallation experiment burner Los Alamo laboratory diameter pipe granitic rock granite cavity exhaust gas...

.... Consequently, it is important to more fully understand the specific effects of discontinuities on the rock thermal conductivity. This paper presents and discusses the results of a laboratory investigation of the effects of a discontinuity on the thermal conductivity of a granitic rock. PREVIOUS WORK...

... ABSTRACT ABSTRACT Laboratory tests were conducted to measure the mechanical and transport properties of a I m diameter by 2 m high specimen of jointed granitic rock. Uniaxial loading was applied and radial permeability tests were made at various stress levels. Ultimate strength...

.... Reservoir Characterization reservoir geomechanics wellbore integrity construction materials Wellbore Design Upstream Oil & Gas strength Rock mechanics grain size composition experiment partial melting specimen mechanical property granitic rock granite mineral aplite specimen high...

... community. Reservoir Characterization reservoir geomechanics hydraulic fracturing Wellbore Design Upstream Oil & Gas fracture mechanics dimension crack extension Stripa granite Ouchterlony senb 1 Rock mechanics experiment crack growth specimen geometry granitic rock extension...

... of a granitic rock mass subjected to thermal loading. The experiment was conducted at the 340 meter level in the Stripa mine, an inactive iron ore mine located in central Sweden. Electrically- powered heaters installed in boreholes were used to simulate the expected heat output of high-level nuclear waste...

... wells, identified as GT-2 and EE-1, were drilled on Fenton Hill, about three kilometers southwest of the Valles Caldera ring fault in northern New Mexico, in the course of the Los Alamos Scientific Laboratory Hot Dry Rock Geothermal Energy experiment. The wells entered Precambrian granitic rock...