American Society of Civil Engineers


A New Lunar Soil Simulant in China


by Mingjing Jiang, (Professor, "Distinguished Professor of Tongji University", Department of Geotechnical Engineering and Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China. E-mail: mingjing.jiang@tongji.edu.cn), Liqing Li, (Ph.D. Candidate, Department of Geotechnical Engineering and Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 20092, China), Chuang Wang, (China Academy of Space Technology, 102 Friendship Road, Haidian District, Beijing 100094, China), and He Zhang, (China Academy of Space Technology, 102 Friendship Road, Haidian District, Beijing 100094, China)
Section: Symposium 14: Advanced Technology in Composite Material Processing, pp. 3617-3623, (doi:  http://dx.doi.org/10.1061/41096(366)347)

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Document type: Conference Proceeding Paper
Part of: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract: Tongji-1 lunar soil simulant (short for TJ-1) was recently developed by Tongji University, China. Originated from the red volcanic ashes in northern China, TJ-1 is proposed as a substitute for lunar regolith in impact tests of the lunar landers used in the second phase of Chinese Lunar Exploration Program. The raw wet materials were dried in the oven, then crushed by special instruments and finally sieved in order to remove large particles. By adjusting the gradation of the pre-processed volcanic ashes and the density, this paper derives a recipe for TJ-1, of which the basic mechanical characteristics (e.g., internal friction angle, cohesion and compression index) match the typical values of lunar regolith collected from 0 to 30 cm below lunar surface. The new lunar stimulant has been recently used in impact tests of lunar landers in China.


ASCE Subject Headings:
China
Soil properties
Moon
Simulation