... specimens. The failure mechanism of rock-like specimens with multiple parallel penetrating flaws subjected to true triaxial compression is investigated. The variation in peak compressive strength with the intermediate principal stress and varying confining pressure were obtained. The results show...

... an experimental system for the permeability evolution of broken rocks. Experimental results show that broken coal exhibits the best compressibility, followed by broken mudstone, and broken sandstone presents the worst compressibility. The porosity and permeability of the broken rocks decrease rapidly...

... Abstract The presence of cracks at the surface of rock excavations can influence the stability of the excavations. In this study, failure behaviour of open and closed cracks under different loading conditions was investigated. For this purpose, the compression tests on the rock specimens were...

... Abstract The mechanical behavior of rocks under high temperature and confining pressure contributes to the design and stability analysis of deep-buried tunnels. In this study, a series of triaxial compression tests with high temperature and confining pressure was conducted on granite samples...

..., such as the elastic property and failure mechanism[5-7]. However, in most previous studies, MD simulations were performed on crystal samples subjected to the loading paths like uniaxial compression, tension, triaxial compression with constant confining stress and triaxial compression with constant mean stress...

... integrity jinping marble figure 2 influence variation deformability environmental science 861 evolution figure 3 geologist reservoir geomechanics figure 1 conference zhang xw compression 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf. Series: Earth and Environmental...

... iop publishing iop conf characteristic macrocrack environmental science 861 hierarchy hierarchical-block geomedium defect destruction geological subdiscipline conference compression incompatibility 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf. Series: Earth...

... with fused quartz was presented, along with the manufacturing process and deformation behavior during a uniaxial compression test. Three digital cameras were arranged around the specimen during the uniaxial compression test to capture the cracks of the same moment from different angles for 3D reconstruction...

... environmental science 861 study compression basin conclusion liaoning province acquisition inversion characteristic existence 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf. Series: Earth and Environmental Science 861 (2021) 052020 doi:10.1088/1755-1315/861/5/052020 Study...

... of small amplitude with independent regulation of the average and differential gas pressures, axial and lateral compression of the sample. The experiments have been carried out using solid coal cores, cores with single through longitudinal cracks simulating drainage hydraulic fractures and cores...

... direction is 67.8°, the plunge angle of the maximum principal compressive stress axis is 4.3°, the plunge angle of the minimum principal compressive stress axis is 75.8°, the relative stress ratio R is 0.80, and the stress state is compressional, which indicates that the area is in the background...

... Abstract As excavation is often very deep with large unloading forces in the construction of a high-level radioactive waste (HLW) disposal repository, microcracks in the surrounding rock are unavoidable. In this work, a series of uniaxial compression tests were conducted on intact samples...

... static monotonic loading, the jointed rocks under cyclic compression fail more abruptly without evident preceding signs. The tensile cracks on the front surface of jointed rocks always initiate from the joint tips, and then propagate at a certain angle with the joints towards the direction of maximum...

... Abstract Experimental uniaxial compression loading tests and scanning electron microscope (SEM) tests are carried out on rock-like specimens containing single pre-existing cracks to study the mechanical properties and microscopic damage evolution. The present study has distinguished tensile...

... Abstract Uniaxial Compressive Strength (UCS) is the most widely used index of rock strength. Strength under confined conditions most often is characterized by a straight line Mohr-Coulomb failure envelope. Although required as input to engineering design, reliable values of one or both...

... can possibly lead to the same coalescence pattern. reservoir geomechanics marble specimen Wong Reservoir Characterization asian rock mechanics symposium arms8 gypsum flaw compression white patch Upstream Oil & Gas initiation Coalescence Coalescence Type en-echelon flaw...

... in compression and tensile experiments and compression of quartz fault gouge in addition to measurable parameters such as deformation, load, acoustic emission, acceleration and electrical potential. The authors describe the outcomes of experiments on multi-parameter thermo-dynamic responses of crystals and rocks...

... Abstract Uniaxial compression tests were carried out for the gypsum samples containing pre-existing flaws in non-overlapping geometry. The geometries of prepared samples were set to have same strength by the simple stress analysis derived only from the sample's geometries. Compared...

..., resulting in much higher probability of maximized well production. Such methods warrant the availability of data related to the dynamic behavior of rocks. Such data includes rock compression, slip data between rock layers, and the amount of energy stored within such slip planes, all recorded as a function...

... in the cavern vicinity. On the other hand, grouting works were applied on the evaluated high permeable zone as countermeasure. After the construction of storage caverns were completed, the water curtain tunnel and water curtain boreholes were submerged and compressed to recover the decreased groundwater field...