Chen Xinshuo, Li Shouding, Zhang Xiaojing, et al. 2021. In-situ testing method for planetary geological engineering[J]. Journal of Engineering Geology, 29(5): 1525-1544. doi: 10.13544/j.cnki.jeg.2021-0532.
    Citation: Chen Xinshuo, Li Shouding, Zhang Xiaojing, et al. 2021. In-situ testing method for planetary geological engineering[J]. Journal of Engineering Geology, 29(5): 1525-1544. doi: 10.13544/j.cnki.jeg.2021-0532.

    IN-SITU TESTING METHOD FOR PLANETARY GEOLOGICAL ENGINEERING

    • As an interdisciplinary subject of planetary geology and planetary engineering,the subject of planetary geological engineering directly supports the construction of planetary research stations and bases,the development of planetary resources and the future migration of humans. Thus,the related research is imminent. Compared with the earth,planetary rock and soil are quite different in material,structure and environment,which determine that the engineering characteristics of planetary rock and soil are very different. In-situ testing of planetary geological engineering is the most direct way to accurately obtain the engineering parameters of planetary rock and soil. The article reviewed the geological engineering in-situ testing methods during lunar and martian exploration missions,analyzed the differences of method and apparatus. These testing methods are classificated into penetration test,bucket test,drilling test,geophysical exploration and photogrammetry. The in-situ test results of lunar physical and mechanical characteristics were summarized as: particle size distribution,density,void ratio,shear resistance,compressibility and bearing capacity. We pointed out the difference in the physical and mechanical properties between lunar soil and earth soil. In the future,based on the ground low-gravity simulation test platform and the physical and mechanical constitutive theory research,we should develop miniaturized and lightweight in-situ test instruments with high level automation and intelligence,and obtain more accurate engineering data for subsequent construction of lunar scientific research stations and bases.
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