首页|Preparation and characterization of a specialized lunar regolith simulant for use in lunar low gravity simulation

Preparation and characterization of a specialized lunar regolith simulant for use in lunar low gravity simulation

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Lunar in-situ resource utilization (ISRU) has been put on the agenda by many countries.Due to the special material nature and low gravity environment,the lunar regolith demonstrates significantly different behavior from terrestrial geomaterials.However,the systematic understanding of its geotechnical behav-ior is now seriously restricted by the scarcity of lunar regolith and the difficulty in simulating lunar grav-ity.A new lunar regolith simulant,termed as China University of Mining and Technology Number One(CUMT-1),has been developed to recover properties of the lunar regolith and simulate the lunar gravity by adopting the recently advanced geotechnical magnetic-similitude-gravity model testing (GMMT)method.The CUMT-1 simulant was prepared by reproducing the in-situ formation and fragmentation of the lunar matrix,which plays a key role in the irregular particle morphology.The mineralogical com-positions,particle morphology and gradation,specific gravity,bulk density,void ratio,shear strength,and compressibility were determined.After quantifying the magnetization and magnetic-similitude-gravity characteristics,an application of the cone penetration resistance under low gravity was further given.The obtained results are compared to the values known for lunar regolith samples and other simulants,which demonstrates promising characteristics for use in geotechnical engineering-based and scientific-based applications,especially considering the influence of lunar gravity.

Lunar regolithCUMT-1 simulantLow gravityGMMT methodISRU

Ruilin Li、Guoqing Zhou、Kang Yan、Jun Chen、Daqing Chen、Shangyue Cai、Pin-Qiang Mo

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State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou 221116,China

School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China

School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,China

National Natural Science Foun-dation of ChinaNational Natural Science Foun-dation of ChinaChina Postdoctoral Science FoundationNatural Science Foundation of Jiangsu ProvinceJiangsu Planned Projects for Postdoctoral Research FundsState Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and TechnologyState Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology

41902273417723382019M661986BK201906372019K194Z19007Z19009

2022

矿业科学技术学报(英文版)
中国矿业大学

矿业科学技术学报(英文版)

CSTPCDCSCDSCIEI
影响因子：1.222
ISSN：2095-2686
年,卷(期)：2022.32(1)
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