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A method and device for simulating the depth of seabed liquefaction, sandblasting and water emission under the action of waves

A simulation method and technology of a simulation device, applied in the direction of measuring devices, testing of machines/structural components, instruments, etc., can solve problems that have not yet been seen, and achieve the effect of convenient implementation and simple structure

Active Publication Date: 2018-11-27
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device that directly measures the depth of "sand blasting and water emission" after liquefaction has not been seen so far

Method used

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  • A method and device for simulating the depth of seabed liquefaction, sandblasting and water emission under the action of waves

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Embodiment Construction

[0026] The technical solutions of the present invention will be further illustrated and described below through specific embodiments in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, a device for simulating the depth of seabed liquefaction, sandblasting and water emission under the action of waves includes a transparent water tank 1 , a force applying member 2 and a weight 3 .

[0028] The transparent water tank 1 is made of toughened glass, and there are 9 layers of powder fine sand 11 of different colors in red, orange, yellow, green, blue, indigo, purple, black and white in sequence, and a layer of undyed sand is laid on the top layer. silt fine sand 11, the thickness of every layer of silt fine sand 11 is all the same, and is 8cm, and seawater is also injected in it, and the liquid level of this seawater is flush with the upper surface of undyed silt fine sand 11, specifically Yes, the transparent water tank 1 is in the shape of a cuboid, ...

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Abstract

The invention discloses a method and device for simulating seabed liquefaction sandblast water emitting depth under wave action. The method includes following steps: (1), using dyeing agents to respectively dye silty-fine sand collected from a beach into different colors, sequentially paving in a transparent water tank up and down, and paving a layer of the silty-fine sand which is not dyed on the uppermost layer; (2), injecting seawater into the transparent water tank to reach the upper surface of the non-dyed silty-fine sand; (3), putting a force applying member in the middle of the upper surface of the non-dyed silty-fine sand; (4), lifting a heavy hammer to a certain height, allowing the heavy hammer to freely fall to hammer a cover plate, repeating the process to simulate acting force of wave load on a seabed, and after certain times of hammering, stopping hammering when sandblast water emitting is observed through the cover plate and a force applying ring; (5), removing the force applying member, and judging liquefaction depth according to color of sea sand when the silty-fine sand of different colors is ejected gradually from a liquefied sand layer as sandblast water emitting continues.

Description

technical field [0001] The invention belongs to the technical field of marine engineering geology, and in particular relates to a method and a device for simulating the depth of seabed liquefaction, sandblasting and water emission under the action of waves. Background technique [0002] my country's coastal waters are often affected by strong typhoons and storm surges, which cause huge waves. Waves are a kind of cyclic load. The seabed soil is under positive pressure at the peak and negative pressure at the trough, and the viscosity with low degree of consolidation Soil or sandy soil with low density is easy to liquefy under the action of wave cycle pressure. After the soil liquefies, a series of geological disasters will occur, such as sand blasting, sediment suspension, and intensified erosion. When there is a slope, submarine landslides can also occur. Among them, "sand blasting" is an important symbol of seabed liquefaction. The pore water with a certain pressure is ejec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 常方强郑宏利
Owner HUAQIAO UNIVERSITY
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