Monotonic behavior of interface shear between carbonate sands and steel

Rui, Shengjie; Wang, Lizhong; Guo, Zhen; Cheng, Xiaoming; Wu, Bo

doi:10.1007/s11440-020-00987-9

Cited by 58 publications

(17 citation statements)

References 33 publications

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“…The length of the landslide is 1200 m, and the height of the trailing edge is 475 m. Considering that the overall stability of the Zhaoshuling landslide was controlled by the weak interlayer, the weak interlayer was the sliding zone. The changing reservoir water levels are set at the leading edge, the other parts of the landslide are set as rainfall boundaries, and the bottom of the model is set as a waterproof boundary (Zhan et al, 2018;Rui et al, 2021).…”

Section: Computational Model Of the Zhaoshuling Landslidementioning

confidence: 99%

Reliability evaluation of reservoir bank slopes with weak interlayers considering spatial variability

Zhang

Meng

et al. 2023

Front. Mar. Sci.

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Reservoir bank slopes with weak interlayers are common in the Three Gorges Reservoir area. Their stabilities are affected by multi-coupled factors (e.g., reservoir water fluctuations, rainfall, and earthquakes in the reservoir area). Meanwhile, the differences in mechanical parameters of reservoir banks make it more difficult to determine the dynamic stability of bank slopes under complex mechanical environments. In this paper, the multiple disaster-causing factors and spatial variability of the landslide were comprehensively considered to study the long-term evolution trend of the bank slopes with weak interlayers. Specifically, the limit equilibrium method combined with the random field was performed to calculate the reliability. Furthermore, the long-term effects of dry-wet cycles on reservoir bank landslides and the sensitivity analysis of the statistical parameters of the random field were discussed. The results show that the earthquake action had the most significant impact on the failure probability of the landslide. The failure probability was more significantly affected by the vertical fluctuation range of the parameters and the coefficient of variation of the internal friction angle. The increase in failure probability under the action of dry-wet cycles was mainly caused by the reduction of the parameters of the weak interlayer. The reliability evaluation method of reservoir bank slopes can be applied to predict the long-term stability of the coastal banks.

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Section: Computational Model Of the Zhaoshuling Landslidementioning

confidence: 99%

Reliability evaluation of reservoir bank slopes with weak interlayers considering spatial variability

Zhang

Meng

et al. 2023

Front. Mar. Sci.

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“…exp{d+ f [e 0 −(e−e min ) tan(πD/2)]}p a( σ 3 /p a) n 0 + 1−{g+h[e 0 −(e−e min ) tan(πD/2)]}R f0 2σ 3 {g+h[e 0 −(e−e min ) tan(πD/2)]} ε 1 (17) (2) For "negative disturbance" (e > e 0 ), Equation (13b) can be rewritten as e 0 − e = (e max − e) tan(πD/2) (…”

Section: Simplified Constitutive Model Considering Disturbancementioning

confidence: 99%

“…However, the nonlinear elastic model is capable of capturing the nonlinearity, stress dependency and inelasticity of the soil behavior. Moreover, it has good convergence performance thanks to its elastic property [16,17].…”

Section: Introductionmentioning

confidence: 99%

Constitutive Modeling of Physical Properties of Coastal Sand during Tunneling Construction Disturbance

Zhu

Zhao

et al. 2021

JMSE

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This paper presents a simple but workable constitutive model for the stress–strain relationship of sandy soil during the process of tunneling construction disturbance in coastal cities. The model was developed by linking the parameter K and internal angle φ of the Duncan–Chang model with the disturbed degree of sand, in which the effects of the initial void ratio on the strength deformation property of sands are considered using a unified disturbance function based on disturbed state concept theory. Three cases were analyzed to investigate the validity of the proposed constitutive model considering disturbance. After validation, the proposed constitutive model was further incorporated into a 3D finite element framework to predict the soil deformation caused by shield construction. It was found that the simulated results agreed well with the analytical solution, indicating that the developed numerical model with proposed constitutive relationship is capable of characterizing the mechanical properties of sand under tunneling construction disturbance.

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“…Rui et al [12] conducted an interface ring shear test on carbonate sand soils. Tey showed that there was a signifcant particle breakage that occurred in the thin zone near the interface shear between carbonate sand particles and steel for ofshore foundations under interface shear displacement greater than or equal to 1 m. Ke et al [13] carried out interface shear tests with a modifed shear apparatus on fne sea sand.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Awash Soil under Static and Cyclic Shear Loading

Arficho

Ashango

2023

Advances in Civil Engineering

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The dynamic soil properties (shear modulus and damping ratio) are of great importance for the analysis and design of geotechnical structures subjected to dynamic loads such as earthquake. Cyclic simple shear tests were conducted to study the variation of shear modulus and damping ratio with a different number of factors for strain amplitudes of 0.01%, 0.1%, 1%, 2.5%, and 5% and for a frequency of 1 Hz at an axial stress of 150 kPa, 275 kPa, and 400 kPa. The result shows that the damping ratio decreases with an increase in confining pressure at different cyclic shear strains. The shear modulus increases with an increase in the void ratio at different cyclic shear strains. The damping ratio increases with a decrease in soil plasticity. The obtained values of shear modules were in the ranges of 0.292 MPa to 15.998 MPa and the damping ratio values from 0.146% to 30.851%. In concluding the major influencing factors that affect the dynamic properties of soils are confining pressure, void ratio, shear strain amplitude, and soil plasticity.

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Monotonic behavior of interface shear between carbonate sands and steel

Cited by 58 publications

References 33 publications

Reliability evaluation of reservoir bank slopes with weak interlayers considering spatial variability

Reliability evaluation of reservoir bank slopes with weak interlayers considering spatial variability

Constitutive Modeling of Physical Properties of Coastal Sand during Tunneling Construction Disturbance

Experimental Study of Awash Soil under Static and Cyclic Shear Loading

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