Magnetically sensitive simulated star loam and its preparation method

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...

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.

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