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Applied Sciences, Vol. 16, Pages 7939: Identification of Unstable Rock Blocks and Rockfall Hazard Assessment on a Karst Steep Rock Slope Using UAV Photogrammetry
1+ mon, 3+ day ago (528+ words) Steep rock slopes are widely distributed in the karst mountainous regions of southwestern China, where structurally controlled rockfalls frequently threaten transportation infrastructure and human safety. Accurate identification of unstable rock blocks (URs) and quantitative assessment of their post-failure hazards remain…...
Applied Sciences, Vol. 16, Pages 8507: Mechanical Degradation and Acoustic Emission Characteristics of Sandstone Containing Intersecting Fissures Under Uniaxial Compression
2+ week, 3+ day ago (425+ words) Intersecting fissures strongly affect stress transfer and crack coalescence in rock, but their coupled effects on mechanical degradation and acoustic emission signatures remain incompletely understood. We conducted uniaxial compression tests with synchronous acoustic emission monitoring on prismatic sandstone specimens containing…...
Applied Sciences, Vol. 16, Pages 8408: Model Test on Thermo-Mechanical Behavior of Pure Friction Piles Under Cyclic Temperature
2+ week, 6+ day ago (477+ words) Frictional energy piles are a more desirable form of shallow geothermal energy utilization. A pure friction pile condition cannot be achieved in field tests. In this study, foam was placed beneath the model pile tip to weaken the end-bearing resistance....
Applied Sciences, Vol. 16, Pages 8146: Implementation of a Three-Dimensional User-Defined Element and Corresponding Artificial Boundary for Dynamic Analysis of Saturated Porous Media in ABAQUS
4+ week, 23+ hour ago (429+ words) The dynamic response analysis of saturated porous media is frequently required in engineering practice, which necessitates handy and accurate analysis tools. In view of this demand, the present paper provides a simple user-defined element (UEL) to incorporate the u-w formulation…...
Applied Sciences, Vol. 16, Pages 8420: Multiscale Experimental Characterization and FDEM Integration of Deformation and Failure of Deep Mudstone Under High Temperature and High Pressure
2+ week, 5+ day ago (409+ words) The deformation and failure mechanism of deep mudstone under high temperature and high pressure (HTHP) is a critical issue constraining deep-drilling efficiency. Taking an HTHP mudstone formation in the western South China Sea as the research object, this study integrates…...
Applied Sciences, Vol. 16, Pages 8874: Research on Optimization of Material Transportation Scheduling for Water Conservancy Engineering Considering Emergency Response to Vehicle Malfunctions
6+ day, 3+ min ago (453+ words) In-transit vehicle malfunctions during material transportation in water conservancy construction can cause delivery delays, disrupt subsequent tasks, and lead to duplicate material requisitions. To address these issues, this study develops a material transportation scheduling optimization model that explicitly incorporates vehicle-malfunction…...
Applied Sciences, Vol. 16, Pages 7968: A Noise-Robust Deep Learning Framework with Hierarchical Attention for Rock Image Recognition Under Inaccurate Supervision
1+ mon, 2+ day ago (499+ words) Rock image recognition based on deep learning serves as a critical task in intelligent geological analysis and core documentation. Although recent advances in deep learning have established the technical foundation for rock image identification, its practical deployment remains constrained by…...
Applied Sciences, Vol. 16, Pages 7877: From Pure Extension to Transtension: Two-Stage Plio-Quaternary Kinematic Evolution of the Edremit and Bakırçay Basins, NW Turkey
1+ mon, 5+ day ago (519+ words) Western Anatolia is a tectonically and seismically active region shaped by the complex interaction among the Eurasian, African, and Arabian plates. Since the Late Cenozoic, it has been dominated by an extensional tectonic regime. This study investigates the morphotectonic, seismotectonic,…...
Applied Sciences, Vol. 16, Pages 8422: Elastic Impedance Matrix-Based Reflectivity Approximation for Vertically Fractured Shales
2+ week, 5+ day ago (501+ words) Shale is typically studied as a transversely isotropic medium with a vertical axis of symmetry (VTI). This model can be extended to vertical fractures in transversely isotropic (VFTI) media when the shale background contains a set of vertical fractures. The…...
Applied Sciences, Vol. 16, Pages 8394: Assessment of Nonlinear Site Response Using eHVSRs During the 2023 Kahramanmaraş Earthquake Sequence
2+ week, 6+ day ago (533+ words) This study presents the first evaluation of the degree of nonlinearity in site response at strong-motion stations in Türkiye during the 6 February 2023 Kahramanmaraş earthquake sequence (Mw 7.8 and Mw 7.5) using earthquake horizontal-to-vertical spectral ratios (eHVSRs). The analysis uses 2050 weak-motion and 175 strong-motion…...