Boulder tracks and nature of lunar soil
Boulder tracks and nature of lunar soil
复制标题
巨石轨迹和月球土壤的性质
DOI：
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复制
发表时间：
1973
期刊：
影响因子：
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通讯作者：
J. K. Mitchell
中科院分区：
文献类型：
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作者：
H. Hovland;J. K. Mitchell
已经对月球上 19 个不同位置的巨石轨迹进行了检查，这些轨迹可以在月球轨道飞行器照片中观察到。轨道宽度的测量表明，一些巨石比其他巨石下沉得更深。建议月球表面材质因地而异；压实状态（月球土壤的密度）可能是重要的变量之一。利用承载力理论，通过理论研究和广泛的测试修改为适用于滚石问题，估算了月球土壤的摩擦角。大多数结果在 24 至 47 度之间，算术平均为 37 度。这些值表明相应的密度变化为 1.25 至 2.00 g/cm3。
Boulder tracks from 19 different locations on the Moon, observable in Lunar Orbiter photographs, have been examined. Measurements of the track width indicate that some of the boulders sank considerably deeper than others. It is suggested that lunar surface materials vary from place to place; the state of compaction (density of lunar soil) is probably one of the significant variables. Using bearing capacity theory, modified to be applicable to the rolling boulder problem by theoretical studies and extensive testing, the friction angle of the lunar soil was estimated. Most of the results were between 24 and 47 degrees with an arithmetic average of 37 degrees. These values suggest corresponding density variations of 1.25 to 2.00 g/cm3.