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Keywords: characteristic
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Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-420
... of Uranium Geology, Beijing, China ABSTRACT: All kinds of fracture discontinuities in granitic host rock of high level radioactive waste (HLW) repository not only degrade the engineering characteristics of rock mass, but also constitute potential groundwater seepage channels and nuclide migration channels...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-381
...15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG The dynamic tensile strength and failure characteristics of transversely isotropic shale under impact Brazilian test Lichun Jia, Qicong Xu, Chongjun Huang, Lei Li, Xiao Wei, Changhong Zhou Drilling & Production...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-370
... characteristic interface reservoir geomechanics roughness engineering upstream oil & gas china government concrete-rock interface rock-concrete interface geologist figure 6 calibration civil engineering dic asia government figure 1 fluctuation tensile strength simulation numerical...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-356
... ABSTRACT: As an unconventional energy, shale gas is being developed widely. As one of the core means of development for shale gas, hydraulic fracturing is greatly affected by the mechanical properties of shale, especially its anisotropy and shear characteristics related to the activation...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-413
... normal load and 300 kN cm torque was prepared, and the proposed test was conducted using prismatic mortar specimens which strength are equivalent to soft rock (UCS < 25 MPa). The size of the prismatic specimen is 20 mm height, 20 mm width, and 70 mm depth. The stress-strain characteristics...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-385
... Ropar, Rupnagar, India ABSTRACT:Field stress conditions have a significant impact on the mechanical characteristics of jointed rock masses. This paper investigates and discusses the effects of joint spacing and confining pressure on the dynamic properties of a jointed rock mass. The RCA was used to test...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-424
... ABSTRACT: The HTHP (high temperature and high confining-pressure) triaxial compression test has been conducted on dolomite at 8000m deep in the Tarim Basin, China. We first study the characteristics of rock deformation based on the experimental results. An improved damage constitutive model...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-400
... the importance of understanding how weathering acts on rocks, awakening a search for knowledge of its susceptibility to weathering and not just its resistance properties to attend design requirements. In the engineering field, alteration is any process that modifies the characteristics that affect...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-418
... characteristic bedding activation fracture complex reservoir china government geological subdiscipline group-v criteria plane bedding plane fracture bedding brazilian tensile strength specimen 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG The tensile...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-481
... of the discontinuities by evaluating the number of joints per meter in the excavation's face and expanding the evaluation criteria of the characteristics of the discontinuities. In this work, the RMRb has been assessed for two examples previously published in two wellknown rock mechanic textbooks using different...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-049
...15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Coupled Geomechanical CFD Modelling of Goaf under Goaf Gas Drainage: Impact of Goaf Characteristics Yuehan Wang School of Minerals and Energy Resources Engineering, University of New South Wales, Sydney...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-020
... opening tunnels and their portals, especially when the work of art is built under restricted conditions; geographic location, rock mass structural and mechanical characteristics, stress states arising from depth or induction from previously existing structures, interference with other transport routes...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-491
... failure criteria are widely used for the assessment of rock mass strength proposed by Hoek & Brown (1980) and Hoek et al. (2002) and their applicability, and restrictions are discussed by Marions et al. (2005). The present paper aims to study the stability and failure characteristics of a vulnerable rock...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-040
... and the low water pressure of 7MPa for 200s. 3 RESULTS 3.1 Fracture sliding characteristics of cyclic injection strategy The RI-1 test and RI-2 test show the cyclic injection strategy. The results show that under the periodical water pressurization, the fault slip happens periodically. Figure 3 and Figure 4...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-485
... the uncertainties of the variables that govern their shear behavior. It was found that the proposed ANFIS models can be considered a useful tool to predict the shear behavior of clean discontinuities, as they require only some information about the joints characteristics, the intact rock that constitutes...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-037
... in Japan. For this system, CO2 fracturing is conducted to create highly permeable fractures in low-permeability reservoirs, for instance, consisting of volcanic rocks. However, there is no previous study on CO2 fracturing of volcanic rocks under geothermal conditions, and possibility and characteristics...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-050
... aggregation degree and the deviation values of MS frequency and energy can effectively identify the early warning interval and potential damage area of surrounding rock mass, The warning time zone and potential damage zone quantified by this method are highly consistent with the characteristics of MS...

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