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首页> 外文会议>Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments >Assessment of the Geomechanical Properties of Lunar Simulant Soils
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Assessment of the Geomechanical Properties of Lunar Simulant Soils

机译：模拟月球土壤的地质力学性质评估

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Renewed recent interest in exploration of the Moon has spawned several planned missions by a range of space agencies, including the U.S., Russia, China, Japan, the EU, and Canada. The development of unmanned rover space missions that can successfully explore the lunar surface requires suitable regolith simulants that accurately represent the soils that exist on the Moon's surface, to enable scientific studies to be performed in terrestrial laboratories. A number of state-of-the-art simulants are now available for this purpose (e.g., CAS-1, JSC-1, OB-1, EAC-1, FJS-1, etc.), which have been matched to different applications on the basis of composition, specific gravity, particle size and shape, and other aspects. Early simulants utilized finely crushed or sorted granular basalts with slight surface weathering, but newer variants have employed more sophisticated compositions to better reproduce the surface chemistry and electrostatic behavior. What is currently absent from the literature are rigorous studies of the geomechanical properties of many of these materials. The main objective of this work was to provide high-quality data to better characterize the geomechanical performance of different simulants in states similar to those on the Moon. The results of basic characterization and mechanical property tests indicate that the simulants have similar mechanical responses to angular and rough soils found elsewhere in the geotechnical testing literature and have similar behaviour compared to the two well-known geotechnical benchmark soils.
机译：最近，人们对月球探测的新兴趣催生了包括美国、俄罗斯、中国、日本、欧盟和加拿大在内的一系列太空机构计划的几项任务。开发能够成功探索月球表面的无人探测车太空任务需要合适的表土模拟物，以准确表示月球表面存在的土壤，从而能够在地面实验室进行科学研究。目前有许多最先进的模拟物可用于此目的（例如，CAS-1、JSC-1、OB-1、EAC-1、FJS-1等），这些模拟物已根据成分、比重、粒径和形状等方面与不同的应用相匹配。早期的模拟物使用细粉碎或分选的粒状玄武岩，表面有轻微风化，但较新的变体使用了更复杂的成分，以更好地再现表面化学和静电行为。目前文献中缺少的是对其中许多材料的地质力学性质的严格研究。这项工作的主要目标是提供高质量的数据，以便更好地描述不同模拟物在类似于月球状态下的地质力学性能。基本特征和力学性能测试的结果表明，模拟物对岩土测试文献中其他地方发现的棱角和粗糙土壤具有相似的力学响应，并且与两种著名的岩土基准土壤相比具有相似的行为。

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