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361
Microscopic Response of Limestone Physical Deterioration under Water-Rock Alternation in the Acidic Environment
Published 2022-01-01“…The nuclear magnetic resonance (NMR) test shows that the number and size of pores in the rock gradually increase with the increase of the number of wetting-drying cycles, and the wetting-drying cycles aggravate the internal damage of the rock. …”
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362
Surrounding Rock Stresses on a Working Face-End Roof under Mining Influence
Published 2021-01-01“…Methods are proposed to improve the stability of surrounding rocks at the top corner of the end including cutting at the top corner of the end, reinforcing the anchor cable, changing the stress distribution of surrounding rocks at the top corner of the end, and transferring the stress concentration area of surrounding rocks to the deeper rock. …”
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363
Thermal Property of Granite in Deep Strata and Its Effect on Thermal Zone of Surrounding Rock
Published 2022-01-01“…In order to clarify the changes in the thermophysical properties of rocks in deep high-temperature strata and their influence on the temperature field of the surrounding rocks, thermal property tests were conducted on rock samples taken from 1,500 to 2,000 m depth in the Xiling well construction area of Sanshandao gold mine. …”
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364
Study on the Mechanism of Rock Stress Sensitivity Using a Random Pore Network Simulation
Published 2016-01-01“…Studies of rock stress sensitivity are mainly focused on experimental and data processing methods, and the mechanism cannot be adequately explained using specific pore shape models. …”
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365
Assessment of the Rock Slopes by Kinematic and Limit Equilibrium Methods on the Bağlarbaşı - Tekke (Gümüşhane) Motorway
Published 2015-08-01Subjects: Get full text
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366
Influence of Deviatoric Stress on the Deformation and Damage Evolution of Surrounding Rock under Unloading Conditions
Published 2020-01-01“…The study of the deformation and damage evolution behaviour of surrounding rock under excavation unloading conditions is of vital importance for a deep understanding of the mechanism of roadway failure. …”
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367
Dynamic Response Law of Nonpersistent Jointed Rock Mass Under Normal Impact Load
Published 2025-01-01“…Normal dynamic mechanical characteristics of the jointed rock mass are of great significance for studying the working state of rock mass with nonpersistent joint. …”
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368
Temporal and Spatial Effect of Surrounding Rock and Supporting Construction of a Large Soil Tunnel
Published 2021-01-01“…Based on the Zaosheng No. 3 tunnel of the Yinchuan-Xi’an high-speed railway, the surrounding rock pressure, contact pressure of the primary support, and secondary lining and internal force of the secondary lining concrete are systematically tested using a vibrating wire sensor, and the correlation between the advance construction distance and the surrounding rock release rate is studied with finite element software. …”
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369
Hydraulic and Mechanical Relationship of Individual Fracture in Rock under Compression and Shearing: Theoretical Study
Published 2020-01-01“…Furthermore, a formulation for determining fracture aperture during the crack growth process is obtained, which is further implanted into the permeability model to predict the hydraulic behavior of fractured rock during fracture propagation. This new model not only considers the normal deformation of the fracture but also, and more importantly, integrates the effect of fracture propagation and shear dilation. …”
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370
Study on the Mathematical Model and Propagation Characteristics of AE Waveform Signals during Rock Fracture
Published 2021-01-01“…Rock deformation or fracture is accompanied by the phenomenon of acoustic emission (AE). …”
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371
Numerical Shear Tests on the Scale Effect of Rock Joints under CNL and CND Conditions
Published 2020-01-01“…The scale effect of rock joint shear behavior is an important subject in the field of rock mechanics. …”
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372
Discrete Element Simulation Analysis of the Bending and Toppling Failure Mechanisms of High Rock Slopes
Published 2021-01-01“…The high rock slope situated in the Southwest stope of Taiping Mining, Inner Mongolia, is subject to dumping failure due to its instability. …”
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373
The Mechanism of Rock Mass Crack Propagation of Principal Stress Rotation in the Process of Tunnel Excavation
Published 2021-01-01“…Rock excavation has experienced complex stress paths. …”
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374
Natural Radioactivity Measurements and Radiation Dose Estimation in Some Sedimentary Rock Samples in Turkey
Published 2014-01-01“…In this study, the gamma radiation has been measured to determine natural radioactivity of 238U, 232Th, and 40K in collected sedimentary rock samples in different places of Turkey. The measurements have been performed using γ-ray spectrometer containing NaI(Tl) detector and multichannel analyser (MCA). …”
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375
Application of 3D Printing Technology in the Mechanical Testing of Complex Structural Rock Masses
Published 2021-01-01“…In the engineering of underground construction, the discontinuous structures in rock mass have important influences on the mechanical behaviors of the subsurface of rock mass. …”
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376
Bending Properties of Short-Cut Basalt Fiber Shotcrete in Deep Soft Rock Roadway
Published 2020-01-01“…As a new type of fiber, BF has great significance in deep soft rock underground engineering.…”
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377
Statistically Coherent Calibration of X-Ray Fluorescence Spectrometry for Major Elements in Rocks and Minerals
Published 2018-01-01“…Both calibrations were successfully applied to rock matrices, and the results were generally consistent with those obtained in other laboratories although the UWLR model showed mostly narrower confidence limits of the mean (slope and intercept) or lower uncertainties than the OLR. …”
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378
Seismic Responses and Damage Mechanisms of Deep-Buried Underground Powerhouse in Layered Rock Mass
Published 2022-01-01“…Layered rock mass generally has adverse effects on the seismic stability of deep-buried underground powerhouses. …”
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379
Exploration of Digital Twin Design Mechanism of the Deep in Situ Rock Insulation Coring Device
Published 2020-01-01“…To achieve the high-fidelity in situ core of deep rock, the development of the corresponding deep in situ fidelity coring device should involve the insulation coring device. …”
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380
An Experimental and Numerical Investigation on the Initiation and Interaction of Double Cracks in Rocks under Hydromechanical Coupling
Published 2020-01-01“…The growth of double cracks is the main factor leading to progressive rock failure under hydromechanical coupling. The initiation modes and interaction behaviors of double cracks were investigated by using laboratory tests, and the influences of water pressure were analyzed. …”
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