한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2004년도 춘계학술발표회
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- Pages.659-666
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- 2004
동다짐 공법의 유효다짐깊이 결정에 영향을 주는 인자 분석
Analysis of Influence Parameters to Evaluate the Effective Depth of Improvement of Dynamic Compaction Method
- Kim, Hong-Taek (Dept. of Civil Engineering, Univ. of Hong-Ik.) ;
- Lee, Hyuk-Jin (Dept. of Tunnelling, Dong-Myeong Eng. Co., Ltd.) ;
- Park, Inn-Joon (Dept. of Civil Engineering, Univ. of Han-Seo.)
- 발행 : 2004.03.25
초록
Dynamic compaction has evolved as an acceptable method of site improvement by treating poor soils in situ. The method is often an economical alternative for utilizing shallow foundations and preparing subgrades for construction when compared with conventional solutions. In general, the installation purpose of dynamic compaction are to increase bearing capacity and decrease differential settlement within a specified depth of improvement. This method involves the s systematically dropping large weights onto the ground surface to compact the underlying ground. The weights used on dynamic compaction projects have been typically constructed of steel plates, sand or concrete filled steel shells, and reinforced concrete. Typically, weights range from 5-20 ton and base configurations are, circular or octagonal. In this study, the effective depth of improvement is evaluated based on the numerical analysis code, the dynamic analysis of FLAC-3D program, in order to analyze the influence parameters ; ground conditions, maximum applied load and the area of compaction plate.