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Magnetic-sensitive simulated star loam and preparation method thereof

A technology for simulating stars and loam, which is applied in the simulation device of space navigation conditions, space navigation equipment, transportation and packaging, etc., to achieve the effect of wide source and low cost

Active Publication Date: 2018-01-30
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unique space environment and geotechnical properties of the surface of the moon, Mars and other planets and near-Earth asteroids have brought great challenges to the construction of geotechnical engineering in outer space.

Method used

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  • Magnetic-sensitive simulated star loam and preparation method thereof
  • Magnetic-sensitive simulated star loam and preparation method thereof
  • Magnetic-sensitive simulated star loam and preparation method thereof

Examples

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preparation example Construction

[0037] The preparation method of implementing the above-mentioned magnetic sensitivity simulation star loam is: in the preparation process, the mass ratio of deionized water and cement binder is controlled to be 5:2-5:3, and the mass ratio of cement binder and magnetic admixture is controlled to be 1: 1-1:3; the preparation process includes four stages of mixing, curing, hardening and granulation, and finally forms a magnetically sensitive simulated star loam that can simulate the particle size characteristics, loose particle characteristics and intergranular weak gravity characteristics of in-situ star loam soil ; The specific steps are:

[0038] 1) Take cement binder, magnetic admixture, additive and deionized water according to the mixing ratio;

[0039] 2) Add cement binder and magnetic admixture into the cleaned and dried container, and stir until the two are evenly mixed;

[0040] 3) Add additives to the mixture and continue stirring until uniform;

[0041] 4) Evenly d...

Embodiment 1

[0048] Embodiment 1. Preparation of magnetically sensitive simulated star loam with uniform particle size distribution in the range of 0.25-0.50 mm.

[0049] 1) Take by weight 100 parts of cement binder, 300 parts of magnetic admixture, 5 parts of additives, and 50 parts of deionized water;

[0050] 2) Add 100 parts of cement binder and 300 parts of magnetic admixture into the cleaned and dried container, and stir until the two are evenly mixed;

[0051] 3) Add 5 parts of additives and continue stirring until uniform;

[0052]4) Add 50 parts of deionized water 5 times, 10 parts each time, stir the mixture until it is evenly added, then continue to add the next 10 parts of deionized water, stir until all 50 parts of deionized water are added, and continue stirring 20 minutes;

[0053] 5) Divide a total of 455 parts of the well-stirred mixture into 5 equal parts and pour them into the mold one by one. Pour 91 parts each time. After pouring, vibrate for 10 minutes. After all th...

Embodiment 2

[0066] Example 2. Prepare magnetically sensitive simulated star loam with a linearly decreasing distribution of particle diameters ranging from 1.00 to 2.00 mm.

[0067] 1) Weigh 100 parts of cement binder, 200 parts of magnetic admixture, 5 parts of additive, and 60 parts of deionized water according to the mass ratio;

[0068] 2) Add 100 parts of cement binder and 200 parts of magnetic admixture into the cleaned and dried container, and stir until the two are evenly mixed;

[0069] 3) Add 5 parts of additives and continue stirring until uniform;

[0070] 4) Add 60 parts of deionized water 5 times, 12 parts each time, stir the mixture until it is evenly added, then continue to add the next 10 parts of deionized water, stir until all 60 parts of deionized water are added, and continue stirring 20 minutes;

[0071] 5) Divide a total of 365 parts of the well-stirred mixture into 5 equal parts and pour them into the mold one by one, pouring 73 parts each time, vibrate for 10 mi...

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Abstract

The invention discloses magnetic-sensitive simulated star loam and a preparation method thereof, and belongs to simulated star soil and a preparation method thereof in the field of deep space geotechnical engineering. The magnetic-sensitive simulated star soil is prepared from the following components in parts by mass: 100 parts of a cementing agent, 100 to 300 parts of a magnetic admixture, 5 parts of an additive and 40 to 60 parts of de-ionized water. During preparation, the mass ratio of the de-ionized water to the cementing agent is controlled to be (5:2) to (5:3), the mass ratio of the cementing agent to the magnetic admixture is (1:1) to (1:3), and the preparation comprises steps of mixing and stirring, maintenance, hardening and granulation. By the material, the particulate characteristic, the fine-grained characteristic and the intergranular weak gravitational force characteristic of in-situ star loam can be effectively simulated. The specific characteristics are as follows: the particle size is adjustable in 0.1 and 100mm; the intergranular weak gravitational force is 0.1 to 3kPa, and can be regulated and controlled through the mass ratio of the cementing agent to the magnetic admixture and the porosity; an unconventional gravitational field can be simulated in combination with a specific external magnetic field, and the strength can be regulated and controlled throughthe mass ratio of the cementing agent to the magnetic admixture and a magnetic field gradient value.

Description

technical field [0001] The invention relates to a similar material for geotechnical engineering and a preparation method thereof, in particular to a magnetically sensitive simulated star loam suitable for the field of deep space geotechnical engineering and a preparation method thereof. Background technique [0002] With the increase of the earth's population, the aggravation of environmental pollution, the continuous depletion of resources and the potential threat of nuclear weapons and other factors, the related research and practice in the field of deep space planetary base construction and mining are imminent. Following the climax of the first lunar exploration in the 1950s, the United States and Russia have recently restarted lunar exploration and plan to establish a permanent base on the moon. Countries and institutions such as China, the European Space Agency, India, and Japan have also accelerated research on the exploration, base construction, and mining of the moon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02B64G7/00
Inventor 李瑞林周国庆赵光思严康高峰
Owner CHINA UNIV OF MINING & TECH
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