探矿工程-岩土钻掘工程Issue(9)：75-80,6.
基于试验的模拟月壤表层取样理论修正及其应用
Correction and Application of Lunar Soil Simulation Surface Sampling Based on Experiments
摘要
Abstract
Lunar exploration plays a huge role in enhancing China’ s comprehensive strength in all aspects.At present, the researches on lunar sampling are focused on designing and manufacturing the sampling devices instead of the interaction be-tween sampling device and lunar soil.Compared with the Earth’ s soil, the different conditions and environment during the formation process make the lunar soil become more special in mechanical properties.During the thin-walled cylinder pene-tration experiments with lunar soil simulation two phenomena ( including lunar soil retention and lunar soil adhesion) were observed, and it was indicated that besides the traditional theory of friction, the theory of maximum shear strength also could be used in analyzing the interaction between sampling devices and lunar soil.Through analyzing of experimental phe-nomena and data, maximum shear strength theory is closer to actual practice than friction theory.As a result, the maximum shear strength theory is introduced to an existing lunar spiral drilling theoretical model, according to the calculation results, the spiral critical speed based on maximum shear strength is lower than that based on friction, which means lower energy consumption for lunar sampling devices.关键词
月球采样/模拟月壤/理论分析/摩擦力/最大抗剪强度Key words
Lunar sampling/Lunar soil simulation/theoretical analysis/friction/maximum shear strength分类
天文与地球科学引用本文复制引用
李谦,段隆臣,高辉..基于试验的模拟月壤表层取样理论修正及其应用[J].探矿工程-岩土钻掘工程,2014,(9):75-80,6.基金项目
国家自然科学基金项目“模拟月壤物理力学特性对钻进过程的影响机理研究” （）
