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2023 Vol.39, Issue 10 Preview Page
Investigation of Technical Requirements for a Protective Shield with Lunar Regolith for Human Habitat

월면토를 이용한 달 유인 우주기지 보호층의 기술적 요구조건에 관한 연구

Jangguen Lee1*
,
Zheng Gong2
,
Hyunwoo Jin3
,
Byung Hyun Ryu4
,
Young-Jae Kim5
이 장근1*
,
공 정2
,
진 현우3
,
유 병현4
,
김 영재5
1Member, Research Fellow, Dept. of Future & Smart Construction Research, Korea Institute of Civil Engrg. and Building Technology
2Member, Graduate Student, Dept. of Civil and Environmental Engrg., Univ. of Science and Technology
3Member, Senior Researcher, Dept. of Future & Smart Construction Research, Korea Institute of Civil Engrg. and Building Technology
4Member, Research Specialist, Dept. of Future & Smart Construction Research, Korea Institute of Civil Engrg. and Building Technology
5Senior Researcher, Dept. of Future & Smart Construction Research, Korea Institute of Civil Engrg. and Building Technology
1정회원, 한국건설기술연구원 미래스마트건설연구본부 연구위원
2정회원, 과학기술연합대학원대학교 박사과정
3정회원, 한국건설기술연구원 미래스마트건설연구본부 수석연구원
4정회원, 한국건설기술연구원 미래스마트건설연구본부 전임연구원
5비회원, 한국건설기술연구원 미래스마트건설연구본부 수석연구원
*Corresponding Author
31 October 2023. pp. 49-55
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Abstract

The discovery of lunar ice in the lunar polar region has fueled international interest in in situ resource utilization (ISRU) and the construction of lunar habitats. Unlike Earth’s atmosphere, the Moon presents unique challenges, including frequent meteoroid impacts, direct exposure to space radiation, and extreme temperature variations. To safeguard lunar habitats from these threats, the construction of a protective shield is essential. Lunar regolith, as a construction material, offers distinct advantages, reducing transportation costs and ensuring a sustainable supply of raw materials. Moreover, it streamlines manufacturing, integration schedules, and enables easy repairs and modifications without Earth resupply. Adjusting the shield’s thickness within the habitat’s structural limits remains feasible as lunar conditions evolve. Although extensive research on protective shields using lunar regolith has been conducted, unresolved conflicts persist regarding shield requirements. This study conducts a comprehensive analysis of the primary lunar threats and suggests a minimum shield thickness of 2 m using lunar regolith. Furthermore, it outlines the necessary technology for the rapid construction of such protective shields.

Keywords
Extreme temperature
Lunar habitat
Lunar regolith
Meteoroid impact
Shield
Space radiation

달 극지방에 얼음이 존재한다는 사실을 발견하고 달 현지자원활용과 유인기지 건설에 국제적 관심이 증대되고 있다. 대기가 없는 달은 지구환경과 다르게 운석충돌, 우주방사선, 극한 온도편차의 위험에 노출되고 있다. 이러한 3대 위협요소로부터 유인 우주기지를 보호하기 위해 보호층 시공이 반드시 요구된다. 월면토를 보호층 시공 재료로 사용하는 것은 지구-달 운송에 필요한 비용 절감과 대량의 원자재 확보라는 관점에서 상당히 매력적이다. 또한, 별도의 제작 및 통합 일정을 위한 추가적인 시간이 필요치 않고 지구에서 재보급 없이 쉽게 수리 및 개조가 가능하다. 환경이 변하는 경우에도 유인 우주기지의 구조적 한계 내에서 보호층 두께 조절이 가능하다. 월면토를 이용한 보호층과 관련한 다양한 연구들이 진행되어 왔으나, 보호층의 요구조건에 대해서는 다양한 의견들이 제시되어 왔다. 본 논문에서 달 지상 3대 위협요소별로 상세히 살펴본 결과를 토대로 장기 유인거주를 위해서는 2m 이상의 보호층 시공이 필요한 것으로 판단하였다. 이를 기반으로 보호층 시공에 필요한 기술과 달 지상에서 급속으로 시공이 가능한 방안을 제시하고자 한다.

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Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 39
  • No :10
  • Pages :49-55
  • Received Date : 2023-09-13
  • Revised Date : 2023-09-25
  • Accepted Date : 2023-09-25
  • DOI :https://doi.org/10.7843/kgs.2023.39.10.49
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