Using Boulder Tracks as a Tool to Understand the Bearing Capacity of Permanently Shadowed Regions of the Moon
Using Boulder Tracks as a Tool to Understand the Bearing Capacity of Permanently Shadowed Regions of the Moon
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使用巨石轨道作为工具来了解月球永久阴影区域的承载能力
DOI：
10.1029/2019je006157
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Sargeant H
中科院分区：
文献类型：
--
作者：
Sargeant H
永久阴影区（PSRs）在月球两极是丰富的。它们没有阳光直射，温度低至30摄氏度。有证据表明，一些psr可能含有水冰（H2O/OH‐），这可能提供太阳系内部挥发物演化的记录，因此psr引起了人们的兴趣。这些水冰也是生命维持系统和火箭推进剂的重要资源。更好地了解PSR风化层的力学特性，例如其承载能力，将有助于优化未来探测车和着陆器的设计。在月球南极PSR增强图像的边缘或内部发现了13个巨石痕迹，并用于估计纬度为70°至76°、年最高温度为65至210 K的地点的PSR风化层的强度。PSR巨石轨迹特征与在月球高地、海地和火山碎屑区观测到的相似，这意味着风化层具有相似的性质。利用实测特征估计了~0.28 ~ 4.68 m深度的PSR风化层的承载能力。估计的承载能力值表明，这些psr可能在0.28至1.00 m深度比高地和海洋地区稍强。这些PSRs的承载能力在统计上与月球其他区域在1.00 ~ 2.00 m深度的承载能力相同。本研究的结果可以用来推断承载力，作为这里测量的低纬度psr可通行性的一个衡量标准。
Permanently shadowed regions (PSRs) are abundant at the lunar poles. They experience no direct sunlight and reach temperatures as low as 30 K. PSRs are of interest as evidence suggests that some may contain water ice (H2O/OH‐), which could provide a record of the evolution of volatiles in the inner solar system. This water ice is also a critical resource for life‐support systems and rocket propellant. A better understanding of mechanical properties of PSR regolith, such as its bearing capacity, will help optimize the design of future exploration rovers and landers. Thirteen boulder tracks were identified on the edge of, or inside, south polar lunar PSR enhanced imagery and used to estimate the strength of the PSR regolith at latitudes of 70° to 76° in sites with maximum annual temperatures of 65 to 210 K. PSR boulder track features are similar to those observed in highland, mare, and pyroclastic regions of the Moon, implying similar properties of the regolith. Measured features were used to estimate bearing capacity for PSR regolith at depths of ~0.28 to 4.68 m. Estimated bearing capacity values suggest that these PSRs may be somewhat stronger than highland and mare regions at depths of 0.28 to 1.00 m. Bearing capacity in these PSRs is statistically the same as those in other regions of the Moon at depths of 1.00 to 2.00 m. The results of this study can be used to infer bearing capacity as one measure for the trafficability of lower‐latitude PSRs of the type measured here.
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影响因子：
4.8
作者：
Bickel, V. T.;Honniball, C. I.;Kring, D. A.
通讯作者：
Kring, D. A.
DOI：
10.1002/2015je004850
发表时间：
2016-02
期刊：
Journal of Geophysical Research: Planets
影响因子：
--
作者：
P. S. Kumar;U. Sruthi;N. Krishna;K. Jaya Prasanna Lakshmi;R. Menon;Amitabh;B. Krishna;D. Kring;J. Head;J. Goswami;A. Kumar
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P. S. Kumar;U. Sruthi;N. Krishna;K. Jaya Prasanna Lakshmi;R. Menon;Amitabh;B. Krishna;D. Kring;J. Head;J. Goswami;A. Kumar
DOI：
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发表时间：
1971
期刊：
影响因子：
--
作者：
J. Mitchell;R. Goodman;F. Hurlbut;W. N. Houston;D. Willis;P. Witherspoon;H. Hovland
通讯作者：
H. Hovland
巨石轨迹和月球土壤的性质
DOI：
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发表时间：
1973
期刊：
影响因子：
--
作者：
H. Hovland;J. K. Mitchell
通讯作者：
J. K. Mitchell
牛津 3D 热物理模型在月球 PROSPECT 任务中的应用
DOI：
--
发表时间：
2019
期刊：
影响因子：
--
作者：
T. Warren;O. King;N. Bowles;E. Sefton;R. Fisackerly;R. Trautner
通讯作者：
R. Trautner