한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2005년도 지반공학 공동 학술발표회
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- Pages.395-404
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- 2005
굴착잔토를 재활용한 지중전력구조물 급결성 유동화 뒷채움재의 최적배합비
Optimal Mixture Contents of Accelerated Flowable Backfill Materials Using Surplus Soil for Underground Power Utilities
- Cheon, Seon-Ho (Dept. of Civil Engineering, Yonsei Univ.) ;
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Jeong, Sang-Seom
(Dept. of Civil Engineering, Yonsei Univ.) ;
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Lee, Dae-Soo
(KEPI/KEPCO) ;
- Cho, Hwa-Kyung (KEPI/KEPCO)
- 발행 : 2005.10.07
초록
This study is to evaluate the physical and mechanical characteristics of flowable backfill and search for the optimal mixture contents of it used for constructing underground power utilities. flowable backfill is known as soil-cement slurry, void fill, and controlled low-strength material(CLSM). The benefits of CLSM include reduced equipment costs, faster construction, re-excavation in the future, and the ability to place material in confined spaces such as narrow parts nearly impossible for compaction or perimeter of underground power cables. The flowable slurry mixture made with 9 types of soil and 6 types of accelerated mixtures in the laboratory were evaluated for bleeding, flowability, heat resistance, and unconfined compressive strength to meet the aim values of this study.
키워드