Fundamental Study on Response Properties of Structures Constructed on Lunar Regolith  

作　　者：Yuji Miyamoto Takaharu Nakano Toshio Kobayashi Yuji Miyamoto;Takaharu Nakano;Toshio Kobayashi(Department of Architecture and Civil Engineering, Fukui University of Technology, Fukui, Japan;Graduate School of Engineering, Osaka University, Osaka, Japan;SANSEI, Inc., Tokyo, Japan)

机构地区：[1]Department of Architecture and Civil Engineering, Fukui University of Technology, Fukui, Japan [2]Graduate School of Engineering, Osaka University, Osaka, Japan [3]SANSEI, Inc., Tokyo, Japan

出　　处：《Open Journal of Earthquake Research》2024年第1期27-40,共14页地震研究（英文）

摘　　要：The Artemis Program, for constructing the lunar base, is in progress. How to design and construct architectural and civil engineering structures in the lunar environment has become an important issue. The lunar surface is covered with soft sand, called regolith, and it is required to protect lunar bases and structures, as well as internal precision equipment, against vibrational disturbances such as moonquakes and meteorite collisions. Therefore, in this study, the static and cyclic triaxial compression tests of the regolith simulant were conducted. The reference strain and equivalent damping factor of the regolith simulant were smaller compared to sandy soil on Earth. In addition, a shaking table test using model specimens was conducted on the response properties of regolith ground alone and structures set on regolith ground. The buried foundation and pile foundation notably suppressed the horizontal response attributed to the rocking component compared to a direct foundation.The Artemis Program, for constructing the lunar base, is in progress. How to design and construct architectural and civil engineering structures in the lunar environment has become an important issue. The lunar surface is covered with soft sand, called regolith, and it is required to protect lunar bases and structures, as well as internal precision equipment, against vibrational disturbances such as moonquakes and meteorite collisions. Therefore, in this study, the static and cyclic triaxial compression tests of the regolith simulant were conducted. The reference strain and equivalent damping factor of the regolith simulant were smaller compared to sandy soil on Earth. In addition, a shaking table test using model specimens was conducted on the response properties of regolith ground alone and structures set on regolith ground. The buried foundation and pile foundation notably suppressed the horizontal response attributed to the rocking component compared to a direct foundation.

关 键 词：Lunar Development REGOLITH Soil-Structure Interaction Triaxial Compression Test Shaking Table Test 

分 类 号：P18[天文地球—天文学]