When the foundation work of the underground part of the building structure or the excavation work of the civil engineering structure is carried out, there is the earthwork work by the inevitable process. As the economic situation continues to develop, construction in urban areas is becoming bigger and higher in scale due to the expansion of infrastructure and the rescue of urban dwellings in urban areas, and excavation of underground roads is inevitable. Excavation of the underground part may cause problems in the process difficulty and safety of the earthworks due to the complexity and various characteristics of the ground selected without consideration of the ground characteristics and site conditions. In order to complete the required facilities, it is necessary to secure the design and construction of the retaining walls. In order to complete the required construction, It is an important factor satisfying construction period and economical efficiency.

Abstract
1. 서 론
2. 지반굴착공사의 위험요인 선정
    2.1 선행연구
    2.2 사례분석
    2.3 연구모형
3. 지반굴착공사의 위험요인 선정
    3.1 AHP 분석
    3.2 AHP 분석결과
4. 문제점 및 개선방안
    4.1 문제점
    4.2 개선방안
5. 결 론
6. References

• 원유진(명지대학교 산업경영공학과) | Yu-Jin Won (Department of Industrial & Management, Myongji University)
• 강경식(명지대학교 산업경영공학과) | Kyung-Sik Kang (Department of Industrial & Management, Myongji University) Corresponding Author