A series of undrained cyclic shear tests was carried out on saturated coral sands, with different initial physical states, as they were subjected to rotations 90° in the paths stress various orientations under isotropic conditions. An important finding is that cumulative dissipated energy required for liquefaction (Ws) significantly affected by their fines content (FC), relative density (Dr), and effective consolidation (p′0), but independent conditions loading. Ws increased increase p′0....

The offshore wind farm industry has recently experienced significant global growth. This study presents a thorough site investigation and analysis of the cyclic resistance marine clay for foundation design, using Shaba in southern China as case study. In-situ cone penetrometer (CPTu) tests borehole sampling are conducted to explore geotechnical characteristics soils. However, soil conditions characterized by multiple layers complex sedimentary components. classification mechanical...

A few well-documented liquefaction case studies of gravelly soils during major earthquakes have increased concerns regarding the susceptibility sand soils. Understanding failure mechanism sand-gravel mixtures under undrained cyclic loading is important for better assessing their susceptibility. The and isotropically anisotropically consolidated are investigated in a solid cylinder apparatus; and, influences varying material properties, compactness states, particle gradations systematically...

This paper systematically investigates the dynamic behavior of sandy soils mixed with recycled tire rubber over a wide strain range in order 10[Formula: see text]–10[Formula: text], using combined resonant column and cyclic triaxial tests for measurement shear modulus damping ratio. The experiment integrates small-strain apparatus large-strain apparatus. results demonstrated that addition particles significantly enhances linear elastic properties host improves critical from which rubber–sand...

Coal production in China accounts for 1/3 of total output the world, and nearly half China's is extracted thick coal seams. Therefore, it significant to study fully mechanized mining technology The development, current situation, issue slicing mining, top-coal caving, seams cutting sufficient height with are systematically analyzed this paper. According result analysis, prospect development discussed. Especially, authors have represented key problems which block

The shear modulus is an essential parameter that reflects the mechanical properties of soil. However, little known about coral sand, especially under complex consolidation conditions. In this paper, we present results a multi-stage strain-controlled undrained cyclic test on saturated sand. influences several state parameters: effective mean principal stress (p0′), ratio (kc), direction angle (α0), and coefficient intermediate (b) maximum (G0), reference strain (γr) reduction (G) have been...

The significance of small-strain stiffness (Gmax) saturated composite soils are still great concern in practice, due to the complex influence fines on soil fabric. This paper presents an experimental investigation conducted through comprehensive bender element tests Gmax marine silty sand. Special attention is paid initial effective confining pressure ( σ c 0 ′ ), global void ratio (e) and content (FC) a results indicate that under otherwise similar conditions, decreases with decreasing e or...

In this paper, robust control strategies are explored to solve the problem of rendezvous maneuver for rigid spacecraft exposed external disturbance, actuator faults and unknown inertial parameters. To pursue objective, two adaptive controllers constructed via sliding mode (SMC) technology. Firstly, a basic scheme is designed in event parameters where Minimum-learning-parameter (MLP) algorithm adopted approximating system dynamics. Though effective, controller not applicable fault scenarios....

In the process of heavy medium coal preparation, control density and rheological properties suspension is a key issue for improvement comprehensive economic efficiency enterprise. order to timely accurately grasp dense preparation process, latent variable techniques (Total Kernel Partial Least Squares, T-KPLS) based online operating performance assessment method employed in this paper. First all, T-KPLS algorithm used establish evaluation model then corresponding strategy evaluate...

This study seeks to investigate the relationship between corporate governance, measured by Corporate Governance Index (CGI) innovatively, and firm's performance Firm Performance (FPI) creatively.The empirical approach in lies constructing a comprehensive measure of governance for listed companies years 2007-2011.The results show positive association performance.Finally, present that size, leverage industry all affect FPI.

We present a novel task called online video editing, which is designed to edit \textbf{streaming} frames while maintaining temporal consistency. Unlike existing offline editing assuming all are pre-established and accessible, tailored real-life applications such as live streaming chat, requiring (1) fast continual step inference, (2) long-term modeling, (3) zero-shot capability. To solve these issues, we propose Streaming Video Diffusion (SVDiff), incorporates the compact spatial-aware...

Long-term cyclic loading can have a significant effect on the modulus of sand, and influence saturated coral sand has yet to be established. In this paper, non-plastic fines content ( FC ) relative density D r dynamic elastic E been evaluated by series triaxial drainage tests. The results show that increases rapidly at beginning loading; then growth slows down finally stabilizes. general, development is influenced collectively FC, stress ratio (CSR). initial d-1 steady-state d-s increase...

The shear failure of rock masses is one the primary causes underground engineering instability. mechanical behavior rocks at different sizes great significance for studying pattern masses. However, due to presence various joints and defects in natural rocks, obtained specimens exhibit significant discreteness, making it difficult customize specimen size effect studies. In recent years, 3D printing (3DP) technology has gained widespread application mechanics test its high precision, ability...

The shear failure of rock masses is one the primary causes underground engineering instability. mechanical behavior rocks at different sizes great significance for studying pattern masses. However, due to presence various joints and defects in natural rocks, obtained specimens exhibit significant discreteness, making it difficult customize specimen size effect studies. In recent years, 3D printing (3DP) technology has gained widespread application mechanics tests its high precision ability...