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Experimental device for inclined angle-adjustable seabed slope seismic response research model based on permeating solidifying method

A technology of seismic response and research model, applied in the field of research, can solve problems such as cohesive soil disturbance and restrict the trigger mechanism research of seabed slopes, and achieve the effects of ensuring uniformity, shortening consolidation time, and facilitating installation and disassembly

Active Publication Date: 2018-12-07
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the real seabed soil parameters change linearly with the depth, and the process of slope cutting will greatly disturb the cohesive soil, which greatly restricts the research on the trigger mechanism of seabed slopes.

Method used

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  • Experimental device for inclined angle-adjustable seabed slope seismic response research model based on permeating solidifying method
  • Experimental device for inclined angle-adjustable seabed slope seismic response research model based on permeating solidifying method
  • Experimental device for inclined angle-adjustable seabed slope seismic response research model based on permeating solidifying method

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Experimental program
Comparison scheme
Effect test

Embodiment

[0029] First, assemble the experimental device. Fix the fixed model box support 1 with fixing bolts 2 on the vibrating table surface, adjust the test model box to a horizontal state and fix it, paste energy-absorbing foam on the left and right sides of the inner wall of the test model box; lay it on the permeable steel partition 5 in sequence After laying the geotextile and filter paper of the same size as the partition, add the evenly stirred kaolin slurry to the test model box to a position 5cm away from the top surface of the model box, cover the cover 11 and tighten it with bolts; fill the water storage tank 16 Water, cover the cover 11 and seal the water storage tank 16 with a tie rod; close the water injection pipe 18 valve, open the water pipe valve 14, check the pressure gauge 17, open the air pipe valve 19 on the air pipe 20, and connect the air pump 21.

[0030] Then, the soil in the test model box was infiltrated and consolidated. Start the air pump 21, apply air pres...

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Abstract

The invention discloses an experimental device for an inclined angle-adjustable seabed slope seismic response research model based on a permeating solidifying method and belongs to the research fieldsof earthquake, rock soil, geology, environment, and the like. The experimental device comprises an inclined angle-adjustable model box system and a permeating loading solidifying system. The experimental device is suitable for the model test research on saturated soil slope and is especially suitable for the related experiment for the related ocean soft clay slope; in order to overcome the defectthat the traditional solidifying method can hardly practically simulate the natural deposition state of soil, a permeating solidifying method is combined for solidifying the soil in the model box, sothat the soil parameters linearly change along the depth direction and the simulated natural deposition state is more close to the true natural deposition state of the seabed soil; and meanwhile, thetraditional model box is improved, a hoisting device is adopted for realizing the random adjustment for the model slope angle within a certain scope according to requirements, and the problem of soildisturbance caused by the slope preparation according to a slope-cutting method in the traditional model test is solved.

Description

Technical field [0001] The invention belongs to the research technical fields of earthquake, rock soil, geology and environment, etc., and relates to an experimental device for studying the seismic response of a submarine slope with an adjustable inclination angle based on a seepage consolidation method. Background technique [0002] With the increasing number of deep-sea oil and gas exploration and deep-water projects, submarine landslides and the marine geological disasters caused by them have seriously endangered the safety of deep-water oil and gas drilling platforms, submarine pipelines, and submarine cables. Therefore, it is urgent to study the instability mechanism of submarine soft clay slopes. The fundamental task of studying the impact of earthquake loads on slope instability is to understand the failure mechanism of slopes under earthquake action. The main indicator of completing this task is to be able to reproduce the failure of slopes in the laboratory. How to achi...

Claims

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Application Information

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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 于龙韩云瑞王忠涛杨庆
Owner DALIAN UNIV OF TECH
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