Consolidation Settlement of the Modern Yellow River Subaqueous Delta

2013 ◽  
Vol 353-356 ◽  
pp. 1223-1228
Author(s):  
Jie Liu ◽  
Xiu Li Feng ◽  
Xiao Liu
Keyword(s):  
Surface Sediments ◽  
Yellow River ◽  
Physical And Mechanical Properties ◽  
One Dimensional ◽  
Average Sedimentation Rate ◽  
Drilling Data ◽  
Consolidation Settlement ◽  
The One ◽  
Unit Depth ◽  
Consolidation Degree

In this paper, the consolidation settlement and settlement rate were studied based on the drilling data of the Yellow River subaqueous delta. The results show that surface sediments of ZK-2 are significantly coarsen than ZK-1, and correspondingly with varying physical and mechanical properties in different cores. Based on the one-dimensional consolidation theory, 50m thickness of layer could produce a total of 1.70m settlement in ZK-1, and 60m could produce 2.34m settlement in ZK-2. The consolidation settlement of unit depth is at 0.1~9cm/m. The consolidation degree needs about 15~20 years to reach 90% and the average sedimentation rate is at 7-9cm/a.

The theory of one-dimensional consolidation of saturated clays. II. Finite nonlinear consolidation of thick homogeneous layers

1981 ◽  
Vol 18 (2) ◽  
pp. 280-293 ◽  
Author(s):  
Robert E. Gibson ◽  
Robert L. Schiffman ◽  
Kenneth W. Cargill
Keyword(s):  
Pore Water Pressure ◽  
Water Pressure ◽  
Excess Pore Pressure ◽  
Conventional Theory ◽  
One Dimensional ◽  
Consolidation Settlement ◽  
Finite Strain Theory ◽  
Effective Stress Analysis ◽  
The One ◽  
Excess Pore

The one-dimensional consolidation of a thick clay layer, initially consolidated fully under its own weight, is considered. Account is taken of the variation of the coefficients of permeability and compressibility as consolidation proceeds. To render the theory consistent finite strains are permitted. Comparisons with conventional theory, in a practical example, show that nonlinear finite strain theory predicts the progress of consolidation settlement to be substantially swifter than indicated by conventional theory, although the dissipation of excess pore pressure may be slower. The consequences of this indicate that conventional consolidation theory has the potential to seriously underestimate the excess pore water pressure in a soft layer. As a result, the estimated shear strength would, if an effective stress analysis were used, be overestimated; a potentially unsafe design could emerge.

scholarly journals Research on model component method based on OpenMI technology

2021 ◽  
Vol 260 ◽  
pp. 03005
Author(s):  
Haiyan Liu ◽  
Xiaomin Liu ◽  
Zhenhua Xu
Keyword(s):  
Yellow River ◽  
The Yellow River ◽  
Multiple Models ◽  
Paper Briefly ◽  
Open Model ◽  
One Dimensional ◽  
Component Method ◽  
Model Component ◽  
The One ◽  
Key Steps

Open Model Interface (OpenMI) technology can construct standardized components with unified timing interface and standardized data interaction. This provides a standardized method for integrating multiple models with different interfaces and functions. This paper briefly introduces the operation principle of OpenMI technology and the process of model standardization, and describes the seven key steps of model transplantation by taking the one-dimensional hydraulic model of the Yellow River as an example.

Application of One-Dimensional Hydraulic Model for Flood Simulation in Yellow River Delta

2014 ◽  
Vol 955-959 ◽  
pp. 2969-2972 ◽  
Author(s):  
Xiao Wei Gu ◽  
Wen Li Yang ◽  
Guo Tao Dong ◽  
Su Zhen Dang
Keyword(s):  
Water Level ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
Coastal Development ◽  
The Yellow River ◽  
Flood Simulation ◽  
One Dimensional ◽  
Daily Water ◽  
The One

Yellow River Delta had been extensively engineered to control flooding and to protect coastal development which leaded to wetlands destruction and severe water pollution. The Yellow River Conservancy Commission decided the water supplement to the wetland during the water and sediment regulation period in 2010. In order to study the water quantity and distribution simulation, one-dimensional SOBEK model was used to flood simulation in the Yellow River Delta. The Re of the daily water level at four stations for the calibration period were 0.6%, 2.3%, 2.9%, 7.0%,.which indicated that the simulated values matched very well with the observed values. The SOBEK model had predicted the water level volume in 2003 within the range of acceptable accuracy. It indicated that the one-dimensional method SOBEK model was suitable for the flood simulation.

Exploring the Multidimensional Facets of Authoritarianism: Authoritarian Aggression and Social Dominance Orientation

2008 ◽  
Vol 67 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Stefano Passini
Keyword(s):  
Social Dominance ◽  
Factor Model ◽  
Three Dimensional ◽  
Social Dominance Orientation ◽  
Model Fit ◽  
Regression Analyses ◽  
One Dimensional ◽  
Confirmatory Factor ◽  
The One ◽  
Better Than

The relation between authoritarianism and social dominance orientation was analyzed, with authoritarianism measured using a three-dimensional scale. The implicit multidimensional structure (authoritarian submission, conventionalism, authoritarian aggression) of Altemeyer’s (1981, 1988) conceptualization of authoritarianism is inconsistent with its one-dimensional methodological operationalization. The dimensionality of authoritarianism was investigated using confirmatory factor analysis in a sample of 713 university students. As hypothesized, the three-factor model fit the data significantly better than the one-factor model. Regression analyses revealed that only authoritarian aggression was related to social dominance orientation. That is, only intolerance of deviance was related to high social dominance, whereas submissiveness was not.

Adiabatic large polarons in anisotropic molecular crystals

2011 ◽  
Vol 35 (1) ◽  
pp. 15-27
Author(s):  
Zoran Ivić ◽  
Željko Pržulj
Keyword(s):  
Energy Transfer ◽  
Effective Mass ◽  
Molecular Crystals ◽  
Single Chain ◽  
Proper Understanding ◽  
One Dimensional ◽  
Interchain Coupling ◽  
Large Polaron ◽  
The One

Adiabatic large polarons in anisotropic molecular crystals We study the large polaron whose motion is confined to a single chain in a system composed of the collection of parallel molecular chains embedded in threedimensional lattice. It is found that the interchain coupling has a significant impact on the large polaron characteristics. In particular, its radius is quite larger while its effective mass is considerably lighter than that estimated within the one-dimensional models. We believe that our findings should be taken into account for the proper understanding of the possible role of large polarons in the charge and energy transfer in quasi-one-dimensional substances.

Modelling Techniques in Applied Glaciology: Numerical Modelling of Avalanches

1983 ◽  
Vol 4 ◽  
pp. 297-297
Author(s):  
G. Brugnot
Keyword(s):  
Finite Difference Method ◽  
Transverse Velocity ◽  
Longitudinal Velocity ◽  
Momentum Conservation ◽  
Dimensional Model ◽  
One Dimensional ◽  
Modelling Techniques ◽  
Reference Grid ◽  
The One ◽  
Near Future

We consider the paper by Brugnot and Pochat (1981), which describes a one-dimensional model applied to a snow avalanche. The main advance made here is the introduction of the second dimension in the runout zone. Indeed, in the channelled course, we still use the one-dimensional model, but, when the avalanche spreads before stopping, we apply a (x, y) grid on the ground and six equations have to be solved: (1) for the avalanche body, one equation for continuity and two equations for momentum conservation, and (2) at the front, one equation for continuity and two equations for momentum conservation. We suppose the front to be a mobile jump, with longitudinal velocity varying more rapidly than transverse velocity.We solve these equations by a finite difference method. This involves many topological problems, due to the actual position of the front, which is defined by its intersection with the reference grid (SI, YJ). In the near future our two directions of research will be testing the code on actual avalanches and improving it by trying to make it cheaper without impairing its accuracy.

Effect of leakage and blockage on the acoustic behavior of particle filters

2019 ◽  
Vol 67 (6) ◽  
pp. 483-492
Author(s):  
Seonghyeon Baek ◽  
Iljae Lee
Keyword(s):  
Transfer Matrix ◽  
Particle Filters ◽  
Acoustic Analysis ◽  
Transmission Loss ◽  
One Dimensional ◽  
Filter System ◽  
The Difference ◽  
The One ◽  
Analytical Approaches ◽  
Good Agreement

The effects of leakage and blockage on the acoustic performance of particle filters have been examined by using one-dimensional acoustic analysis and experimental methods. First, the transfer matrix of a filter system connected to inlet and outlet pipes with conical sections is measured using a two-load method. Then, the transfer matrix of a particle filter only is extracted from the experiments by applying inverse matrices of the conical sections. In the analytical approaches, the one-dimensional acoustic model for the leakage between the filter and the housing is developed. The predicted transmission loss shows a good agreement with the experimental results. Compared to the baseline, the leakage between the filter and housing increases transmission loss at a certain frequency and its harmonics. In addition, the transmission loss for the system with a partially blocked filter is measured. The blockage of the filter also increases the transmission loss at higher frequencies. For the simplicity of experiments to identify the leakage and blockage, the reflection coefficients at the inlet of the filter system have been measured using two different downstream conditions: open pipe and highly absorptive terminations. The experiments show that with highly absorptive terminations, it is easier to see the difference between the baseline and the defects.

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