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Test method for verifying existence of hydrodynamic pressure in bank slope soil

A technology of hydrodynamic pressure and test method, which is applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc. Ensure accurate, actionable results

Active Publication Date: 2020-07-31
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, some scholars at present confuse the concepts of hydrodynamic pressure and seepage force in the study of slope stability, and the research on hydrodynamic pressure is based on the state of a certain moment, and the scientific basis is insufficient

Method used

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  • Test method for verifying existence of hydrodynamic pressure in bank slope soil
  • Test method for verifying existence of hydrodynamic pressure in bank slope soil
  • Test method for verifying existence of hydrodynamic pressure in bank slope soil

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Experimental program
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Effect test

Embodiment Construction

[0033] Such as Figure 2-3 As shown in , a test device for verifying the hydrodynamic pressure in bank slope soil is improved on the existing infiltration device.

[0034] The device includes a water supply device 1 , a osmometer main body 2 and a water collecting device 3 .

[0035] The water supply device 1 includes a water storage tank 8 and a water supply bucket 5, the water storage tank 8 is connected to the water supply bucket 5, and the water supply bucket 5 is connected to the osmometer main body 2 through a rubber tube 6 to supply water to the osmometer main body 2.

[0036] The water collecting device 3 includes a water collecting bucket 16 , and the water collecting bucket 16 is connected to the main body 2 of the permeameter through a rubber tube 6 .

[0037] Such as Figure 4 As shown, the main body of the permeameter 2 includes a sample container 13 , an upper cover 9 , a permeable plate 18 , a support tube 11 , and a lower cover 14 . Wherein, the sample tube ...

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Abstract

The invention provides a test method for verifying existence of hydrodynamic pressure in bank slope soil. The method can be improved on the basis of most simple permeation devices and is efficient, economical and high in operability. The test device is improved, a permeability test is carried out by preparing a plurality of groups of soil samples with different permeability coefficients; meanwhile, the water head and the stress in the soil body in the test are obtained in a targeted manner according to the concept of hydrodynamic pressure to ensure the accuracy of the test; and finally, the existence of the hydrodynamic pressure is verified by analyzing the change rules of the water head and the stress in the soil body obtained from the test soil sample under different permeability coefficients, and a scientific basis is provided for accurately mastering the hydrodynamic pressure concept in the field of reservoir bank slope stability analysis and evaluation.

Description

technical field [0001] The invention relates to a bank slope stability analysis test of a reservoir, in particular to a test method for verifying the hydrodynamic pressure in the bank slope soil. Background technique [0002] The concept and calculation method of hydrodynamic pressure are very important for the stability calculation of hydrodynamic pressure slopes on banks. However, some scholars confuse the concepts of hydrodynamic pressure and seepage force in the study of slope stability, and the research on hydrodynamic pressure is based on the state at a certain moment, and the scientific basis is insufficient. [0003] In fact, the hydrodynamic pressure is a kind of physical force produced by the unbalanced water pressure difference in the soil when the pore water in the soil body dissipates behind the reservoir water during the rapid drop of the reservoir water level. When the reservoir water level drops synchronously with the groundwater level drop in the slope body...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/12G01N15/08
CPCG01N3/02G01N3/12G01N15/0806G01N15/0826
Inventor 张振华任聪聪
Owner HEFEI UNIV OF TECH
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