Results 11 to 20 of about 2,680,418 (361)
Measurement of Rock Joint Surfaces by Using Smartphone Structure from Motion (SfM) Photogrammetry [PDF]
Sensors, 2021 The measurement of rock joint surfaces is essential for the estimation of the shear strength of the rock discontinuities in rock engineering. Commonly used techniques for the acquisition of the morphology of the surfaces, such as profilometers and laser ...
Pengju An +4 more
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Damage law and mechanism of coal-rock joint structure induced by liquid nitrogen at low temperature [PDF]
Scientific Reports, 2022 The width and degree of connectivity of coal-rock joints directly affect the seepage capacity of flow energy such as gas. To study the damage law and mechanism of the coal-rock joint structure under the action of liquid nitrogen, two methods of liquid ...
Hewan Li +4 more
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Influencing Factors of Shear Instability Characteristics of Rock Joints: Experimental and Theoretical Study [PDF]
Applied SciencesTo investigate the influencing factors of the shear failure behavior of rock joints, especially the shear instability characteristics, direct shear tests were performed on marble joints with various grain sizes under different constant normal loads (CNLs)
Hangyu Dong +4 more
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Composite filter-based detection of rock joints from drilling parameters [PDF]
Scientific ReportsIn geotechnical engineering, rock joints are the key factor in determining the stability of rock. Quickly and accurately identifying the joints in the rock has always been a concern in geotechnical research. A drilling experiment was designed for jointed
Jianjun Tong +4 more
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Effect of rock joint roughness on its cyclic shear behavior
, 2017 Rock joints are often subjected to dynamic loads induced by earthquake and blasting during mining and rock cutting. Hence, cyclic shear load can be induced along the joints and it is important to evaluate the shear behavior of rock joint under this ...
S. M. Mahdi Niktabar +2 more
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Rock Joint Roughness Measurement and Quantification—A Review of the Current Status
Geotechnics, 2023 This paper provides a review of the present status of the topic dealt with. The contact and non-contact methods used for rock joint roughness measurement are summarized including their salient features, advantages, and disadvantages. A critical review is
P. Kulatilake, M. L. Y. Ankah
semanticscholar +1 more source
Shock and Vibration, 2021 In this paper, the parallel-joint rock column model is established based on PFC software, and the effects of different joint positions on the mechanical properties, acoustic emission characteristics, and damage evolution characteristics of rock columns ...
Pei Zhang +3 more
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Lithosphere, 2021 To propose an effective and reasonable excavation plan for rock joints to control the overall stability of the surrounding rock mass and predict and prevent engineering disasters, this study is aimed at predicting the rock joint shear strength using ...
Jiandong Huang, Jia Zhang, Yuan Gao
semanticscholar +1 more source
Frontiers in Earth Science, 2023 The uneven deformation of filled rock joints subjected to ground stress can easily cause instability in engineering rock masses. Fluctuations in morphology and filling are the main factors affecting the normal deformation of filled rock joints.
Zhanyou Luo +6 more
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MATHEMATICAL DETERMINATION OF ROCK JOINTS MORPHOLOGICAL PROFILE
Rudarsko-geološko-naftni Zbornik, 2022 Determining the geometric or morphology and mechanical properties of joints and geomechanics of intact rock is a vitally important issue in predicting the behaviour of structures built inside or on rock masses. The joint morphology is significant because
Jamal Zadhesh, Abbas Majdi
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