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Method for Determining Pore Water Pressure in Saturated Soil Layer Under Loading of Embedded Anchor Plates

A technology of pore water pressure and determination method, applied in the field of coastal soil engineering, can solve the problems of difficulty in comprehensive consideration, neglect of soil skeleton combination, and inaccurate calculation.

Active Publication Date: 2022-07-08
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing technology ignores the combined effect of the effective stress of the soil skeleton and the pore water pressure, making it difficult to fully consider such problems
In other words, the calculation of pore water pressure in saturated soil under the condition of soil thickness and complex load combination is not accurate enough

Method used

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  • Method for Determining Pore Water Pressure in Saturated Soil Layer Under Loading of Embedded Anchor Plates
  • Method for Determining Pore Water Pressure in Saturated Soil Layer Under Loading of Embedded Anchor Plates
  • Method for Determining Pore Water Pressure in Saturated Soil Layer Under Loading of Embedded Anchor Plates

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Embodiment

[0306] Taking the numerical calculation as an example, the numerical results under the uniform distribution of circular load per unit strength are given. Through the comparison with the literature solution and the finite element results, the validity of the solution of the present invention is verified. At the same time, the soil permeability and Influence of thickness on pore hydrodynamic response. Unless otherwise specified, the calculation parameters of the saturated soil layer are listed in Table 1, and the coordinates of the observation point are r=0, θ=θ 0 =0.

[0307] Table 1. Calculation parameters of saturated soil layer

[0308]

[0309] Verification and Comparison of Solutions

[0310] For the first example, let ρ fR →0, n f →0 and L→∞, thus degenerating the solution of the present invention to the case of elastic half-space single-phase soil, and comparing its dynamic response under the action of a uniform disk source of unit strength with the calculation re...

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Abstract

The invention discloses a method for determining pore water pressure in a saturated soil layer under the load of embedded anchor plates. The effect of embedded elastic anchor plates on soil is regarded as a uniformly distributed circular load, including effective stress and pore fluid pressure components , the calculation formula of pore water pressure in saturated soil layer with finite thickness on rigid foundation under the action of anchor plate load is given. Considering the influence of soil layer thickness, the existing half-space solution or full-space solution can also be obtained through degradation treatment; the anchor plate load is considered as a combination of three soil skeleton effective stress components and a pore water pressure, which can adapt to complex case of load combinations.

Description

technical field [0001] The invention belongs to the technical field of coastal soil engineering, in particular to a method for determining pore water pressure in saturated soil layers under the action of embedded anchor plates. Background technique [0002] In coastal engineering, the anchor plate is an important foundation, which is usually embedded in the fluid-filled soil to provide anchoring force for the structure. At the same time, the anchor plate also exerts force on the surrounding soil, causing pore water pressure in the soil, which further leads to the consolidation and deformation of the soil or the liquefaction of saturated sand. Therefore, under such loads, the calculation of the pore water pressure of saturated soil plays an important role, which is of great significance to the design and construction of anchor plate structures in related projects. [0003] In the prior art, soil is generally considered to be a fluid-filled elastic porous half-space or full-s...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13G06F30/23G06F17/12G06F17/15G06F17/16G06F119/14
CPCG06F30/13G06F30/23G06F17/12G06F17/15G06F17/16G06F2119/14Y02A90/30
Inventor 张石平林晨张军辉徐站
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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