A5086792816- Geotechnical Engineering and Soil Mechanics
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Stabilization
- Landslides and related hazards
- Grouting, Rheology, and Soil Mechanics
- Soil and Unsaturated Flow
Nanjing University of Aeronautics and Astronautics
2023-2025
Beijing University of Technology
2022-2024
Nanjing Tech University
2022
Long-term cyclic loading applied to clay at stress levels lower than the critical leads soil deformation without inducing damage. The Monismith model is well-known for its simplicity and ability describe trend of cumulative plastic strain under loading. However, simulated increases indefinitely with number cycles until damage occurs. At levels, tends be stabilized an increasing cycles, ultimately limits applicability model. To address this issue, a series axial-torsional bi-directional tests...
A series of undrained cyclic torsional shear tests was conducted to investigate the effect loading frequency on liquefaction characteristics saturated sand using a hollow cylinder apparatus. The test results show that dilative and contractive tendencies various sands are not only related physical properties sand, but also affected by frequency. Under low-frequency loading, has behaviour, excess pore water pressure fluctuates after initial soil maintains ability resist some extent...
Small-strain shear modulus (G0) is a fundamental property required in dynamic analyses. For sandy soils, G0 may be affected strongly by particle characteristics such as uniformity coefficient (Cu), mean size (d50), fines content (FC), and shape. Based on an extensive experimental study of the mechanical behavior coral sands, this paper proposes new formula for predicting soils with various Cu, d50, FC, shapes. A notable feature use extreme void ratios (maximum ratio emax minimum emin)...
The influence of complex cyclic loadings associated with earthquakes on the shear modulus and damping properties saturated coral sands has yet to be established. This paper presents comprehensive data sets from multi-staged strain-controlled (denoted Mγ), constant-amplitude (Cγ) variable-amplitude (Vγ) undrained triaxial (UCTX) tests a sand. strain-dependent ratio Mγ UCTX stiffness degradation behaviour in Cγ Vγ are investigated. A correlation-function-based method is proposed calculate...
In this study, a series of undrained cyclic torsional shear tests were conducted to investigate the effect loading frequency f on pre-liquefaction (shearing contractive (SC) period and initial shearing dilative (ISD) period) post-liquefaction (late (LSD) deformation properties saturated Fujian sand. The secant modulus G damping ratio λ in entire process, unloading tangent GL1 flow GL2 ISD LSD periods adopted quantitatively characterize evolution hysteresis loop with an increase strain...
Small-strain shear modulus ([Formula: see text]) of soils is a crucial dynamic parameter that significantly impacts seismic site response analysis and foundation design. [Formula: text] susceptible to multiple factors, including soil uniformity coefficient text]), void ratio (e), mean particle size confining stress text]). This study aims establish database suggests three advanced computational models for prediction. Nine performance indicators, four new indices, are employed calculate...