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461
Coastal Sand Frostweed, Crocanthemum arenicola Synonym: Helianthemum arenicola
Published 2018-10-01Subjects: “…Cistaceae (Rock-rose family)…”
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462
Performance of Bambara groundnut (Vigna subterranea L. Verdc.) with rice husk biochar and Christmas Island Rock Phosphate application
Published 2024-01-01Subjects: Get full text
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463
Study on the REV Size of Fractured Rock in the Non-Darcy Flow Based on the Dual-Porosity Model
Published 2018-01-01“…Then the simulation method of the Darcy and non-Darcy flow in the fractured rock mass is built using the PPCE. The proposed plan is examined through the comparison with existing research results. …”
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464
Control of the Chamber in Extra-Thick Coal Seam Based on Fracture Characteristics of Coal Rock and Mass
Published 2020-01-01“…As the development characteristics of cracks of the chamber are closely related to the bolt and cable anchoring parameters, the original rock stress of the surrounding rock, and fracture degree, this paper proposes the control method for chamber in extra-thick coal seam by the crack development characteristics. …”
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465
Stress-Strain Calculation Method of Composite Lining considering the Creep Characteristics of Tunnel Surrounding Rock
Published 2021-01-01“…The results of this paper show that the initial support force has also increased during the creep process of the surrounding rock, indicating that engineers should pay close attention to the coordination between the strength of initial support and the secondary lining and thus ensure an optimal distribution of the pressure from the surrounding rock when designing composite lining tunnel within weak strata. …”
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466
Determination of sedimentation conditions of sandy rocks when calculating boron content from logging data
Published 2025-01-01“…Determination of sedimentation conditions of sandy reservoir rocks is an important part in the search for new deposits and in effective development of hydrocarbon fields. …”
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467
Experimental Study on Energy Evolution and Storage Performances of Rock Material under Uniaxial Cyclic Compression
Published 2020-01-01“…To investigate the energy evolution and storage performances of rock under uniaxial cyclic compression, a series of uniaxial cyclic loading and unloading compression tests were conducted on Green sandstone and Yueyang granite. …”
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468
Research on Fracture and Energy Evolution of Rock Containing Natural Fractures under Cyclic Loading Condition
Published 2021-01-01“…For rock engineering in cold regions, the naturally fractured rock is susceptible to repeated freeze-thaw (F-T) weathering, coupled fatigue conditions of freeze-thaw (F-T), and stress disturbance act on rock mass, which can lead to the instability of rock engineering and even occurrence of geological hazards. …”
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469
Seepage Damage Statistical Model of Filled Fractured Rock considering Structural Surface and Failure Characteristic
Published 2021-01-01“…According to the tensile failure characteristics of filled fractured rock under the action of seepage stress, the maximum tensile strain criterion is used to define the rock microunit strength parameters, and the equivalent elastic modulus of the fractured rock is used to establish a new damage statistical model. …”
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470
The Criteria of Underground Rock Structure Failure and Its Implication on Rockburst in Roadway: A Numerical Method
Published 2019-01-01“…Rockburst in roadway happened along with a large-scale destruction of the surrounding rock. To study the failure laws of the surrounding rock in the process of rockburst in roadway, the evolution behaviors of the plastic zone and the criteria of large-scope failure were studied by using FLAC numerical simulation. …”
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471
Estimation of Ultimate Bearing Capacity in Rock-Socketed Piles Using Optimized Machine Learning Approaches
Published 2023-12-01“…Rock-socketed piles, frequently employed in soft ground foundations, represent a matter of paramount issue in research, design, and construction, primarily because of their bearing capacity. …”
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472
Research and Application of Rock Burst Hazard Assessment of the Working Face Based on the CF-TOPSIS Method
Published 2023-01-01“…Coal mining activities have intensified, and underground mining depths have increased, posing significant challenges for mitigating rock burst hazard. To address this issue, this paper proposes an improved comprehensive weighting prediction (CF-TOPSIS) method that predicts weight and grade indices for rock burst evaluation. …”
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473
A New Approach for Estimating Rock Discontinuity Trace Intensity Based on Rectangular Sampling Windows
Published 2020-01-01Get full text
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474
Experimental Study on the Failure Mechanism of Tunnel Surrounding Rock under Different Groundwater Seepage Paths
Published 2021-01-01“…Therefore, the variation of surrounding rock during excavation and the deformation and failure of soft surrounding rock under different seepage paths of underground water after excavation systematically. …”
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475
Rock, identidad e interculturalidad: breves reflexiones en torno al movimiento rockero ecuatoriano
Published 2004-01-01Subjects: “…rock…”
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476
Production of abiotic or biogenic hydrocarbons on rock particles in the presence of H2O and carbon compounds
Published 2025-01-01“…Beneath the hydrothermal vents, abiotic H2 and hydrocarbons can be formed by serpentinization reactions and Fischer–Tropsch-type hydrocarbon-forming reactions, respectively, over ultramafic rocks. However, the source rocks that form abiotic H2 and hydrocarbons may extend to broader subsurface rocks. …”
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477
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478
Hard rock aquifer architecture and water circulation levels in the Strengbach critical zone observatory (France)
Published 2023-11-01Subjects: Get full text
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479
Investigation of the Hydraulic Fracture Propagation Law of Layered Rock Strata Using the Discrete-Particle Model
Published 2022-01-01“…Hydraulic fracturing is a rock structure transformation method that significantly weakens the mechanical properties of the hard roof strata. …”
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480
Correction of Line-Sampling Bias of Rock Discontinuity Orientations Using a Modified Terzaghi Method
Published 2018-01-01“…The Terzaghi method is widely used to correct the line-sampling bias of rock discontinuity orientations. The method includes four procedures, one of which is meshing the stereographic projection diagram into cells. …”
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