Axisymmetric fundamental solutions for a finite layer with impeded boundaries

Zehai, Cheng; Chen, Yunmin; Ling, Daosheng; Tang, Xiaowu

doi:10.1631/jzus.2003.0393

Cited by 5 publications

(2 citation statements)

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“…Under the influence of the overall environment of traditional education, most teachers generally follow the requirements stipulated in the examination syllabus during the development of junior high school English education, and integrate some important and difficult knowledge content in the textbooks to allow students to carry out learning and exploration. At the same time, some teachers will use their own educational concepts to find out some knowledge content in the textbooks and let students learn independently, but these methods cannot help students better broaden their horizons in learning (Cheng & Chen, 1992). In the process of daily education work, some teachers are still using some relatively traditional and backward educational methods.…”

Section: The Current Situation Of English Education In Junior Middle ...mentioning

confidence: 99%

The Effect of the Double Reduction Policy on the English Performance of Junior Middle School Students in Zengcheng, Guangdong

Huang

2024

ELTLS

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With the implementation of the double reduction policy, higher requirements have been virtually placed on the education and teaching of schools. The "double reduction" policy has strengthened teachers' subjective pursuit of teaching quality and teaching efficiency. Therefore, teachers have explored feasible methods to effectively improve English teaching efficiency, and strive to build a quality, humanized and efficient cognitive environment for junior high school students. In order to greatly improve the efficiency of English teaching, teachers consciously explore the requirements of the "double reduction" policy for English teaching, pragmatically summarize the main factors that improve English teaching efficiency, comprehensively summarize the practical value of improving English teaching efficiency, and scientifically explore the methods of improving English teaching efficiency under the "double reduction" policy.

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Section: The Current Situation Of English Education In Junior Middle ...mentioning

confidence: 99%

The Effect of the Double Reduction Policy on the English Performance of Junior Middle School Students in Zengcheng, Guangdong

Huang

2024

ELTLS

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“…For cylindrical unitcell consolidation with a vertical drain, the existing analytical solutions were derived only under instantaneous loading conditions (Cheng et al, 2003;Liu et al, 2007;Sun et al, 2007;Zhang et al, 2005). However, in practical situations, surcharge loading is almost always gradually and incrementally applied.…”

Section: Introductionmentioning

confidence: 99%

Vertical-drain consolidation using stone columns: An analytical solution with an impeded drainage boundary under multi-ramp loading

Gan

2016

Geotextiles and Geomembranes

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A general solution for vertical-drain consolidation with impeded drainage boundaries

Gan

2016

J. Cent. South Univ.

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An analytical solution is derived from the generalized governing equations of equal-strain consolidation with vertical drains under multi-ramp surcharge preloading. The hydraulic boundary conditions at both top and bottom of the consolidating soil are modelled as impeded drainage. The impeded drainage is described by using the third type boundary condition with a characteristic factor of drainage efficiency. Fully drained and undrained boundary conditions can also be modelled by applying an infinite and a zero characteristic factor, respectively. Simultaneous radial and vertical flow conditions are considered, together with the effects of drain resistance and smear. An increase in total stress due to multi-ramp loading is reasonably modelled as a function of both time and depth. A solution to calculate excess pore-water pressure at any arbitrary point in soil is derived, and the overall average degree of consolidation is obtained. It shows that the proposed solution can be used to analyze not only vertical-drain consolidation but also one-dimensional consolidation under either one-way or two-way vertical drainage conditions. The characteristic factors of drainage efficiency of top and bottom boundaries have a potentially important influence on consolidation. The boundary may be considered fully drained when the characteristic factor is greater than 100 and fully undrained when the characteristic factor is less than 0.1. The stress distribution along depth induced by the surcharge loading has a limited effect on the overall average degree of consolidation. However, it has a significant effect on the dissipation of excess pore-water pressure.

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Axisymmetric fundamental solutions for a finite layer with impeded boundaries

Cited by 5 publications

References 5 publications

The Effect of the Double Reduction Policy on the English Performance of Junior Middle School Students in Zengcheng, Guangdong

The Effect of the Double Reduction Policy on the English Performance of Junior Middle School Students in Zengcheng, Guangdong

Vertical-drain consolidation using stone columns: An analytical solution with an impeded drainage boundary under multi-ramp loading

A general solution for vertical-drain consolidation with impeded drainage boundaries

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