한국안전학회지 (Journal of the Korean Society of Safety)

  • 제36권5호
  • /
  • Pages.18-26
  • /
  • 2021
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  • 1738-3803(pISSN)
  • /
  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
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이동식 크레인 하중이 굴착사면 안정성에 미치는 영향 분석

Effect of Mobile Crane Load on Excavated Slope Stability

  • 김정곤 (지에스 건설 건축 QCS팀 BS담당) ;
  • 나예지 (충북대학교 방재공학 학과간 협동과정) ;
  • 원정훈 (충북대학교 안전공학과)
  • Kim, Jeong Kon (QCS Team, GS Engineering and Construction) ;
  • Na, Ye Ji (Department of Disaster Prevention Engineering, Chungbuk National University) ;
  • Won, Jeong-Hun (Department of Safety Engineering / Department of Disaster Prevention Engineering & Department of Big Data, Chungbuk National University)
  • 투고 : 2021.01.14
  • 심사 : 2021.09.13
  • 발행 : 2021.10.31
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초록

The effect of heavy construction equipment on the excavated slope is investigated by slope stability analysis. A mobile crane with 500 kN capacity is applied as a working load to the background surface of the excavated slope, in both sandy soil and clay, designed to guarantee the safety of slope stability. Major parameters such as the distance between the edge of the slope and the mobile crane, groundwater level, and ground plate size of the mobile crane are considered. Only 23.8% and 14.3% of the analysis models with sandy soil and clay excavated slope, respectively, satisfied the slope stability. By changing the slope of the sandy soil from 1:1.0 to 1:1.2, the number of analysis models securing slope stability increased from 23.8% to 40.5%. For the clay excavated slope, the analysis models securing slope stability increased from 14.3% to 42.9% by changing slope inclination from 1:0.8 to 1:1.2. In addition, it is found that the increase in the size of the ground plate of the mobile crane increases the analysis models that secure slope stability. Therefore, it is an effective way to relax the excavated slope's inclination angle and simultaneously increase the ground plate size to guarantee stability.

키워드

과제정보

This paper was partially supported by Ministry of the Interior and Safety as "Human resource development Project in Disaster management".

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