쇄석의 진동다짐 특성에 관한 실험적 고찰

• 영문명: An Experimental Study on the Characteristics of Vibro-compaction of Crushed Stones
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 정길수(Jeong Gil Soo) 박병수(Park Byung Soo) 홍영길(Hong Young Kil) 유남재(Yoo Nam Jae)
• 간행물 정보: 『산업기술연구』vol.24, 89~94쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2004.09.30

영문 초록

This Study is results of experimental works to investigate the characteristics of vibro-compaction of crushed stones having coarse grain sizes. For testing material, crushed stone, sieved within very narrow ranges of grain size distribution, was used. Cyclic loading apparatus was used to apply cyclic loading to the specimen prepared in the mold. Tests were performed by changing the ratio of the maximum to the minimum stress, frequency and the magnitude of the maximum and the minimum stresses. Settlement of specimen due to cyclic loading was measured to analyze the compaction efficiency and sieve analysis test after cyclic loading test was also carried out to find the crushing rate of the specimen. As results of cyclic loading test, normalized settlement in terms of specimen height tends to be converged around loading cycle number of 1500. The magnitude of normalized settlement is in the range of 3.11 ~ 8.57%. The crushing rate is in the range of 4.46 ~ 8.78%. Normalize settlement and the crushing rate tend to increase with decreasing the ratio of the maximum to the minimum stresses and they tend to increase with increasing the frequency and the magnitude of the maximum and the minimum stresses for the given ratio. In conclusions, compaction rate of crushed stone is controlled by the dynamic stress (difference between the maximum and the minimum stresses) and the crushing rate is dominated by applied energy to the specimen.

목차

Abstract

1. 서론

2. 사용시료 및 물리적 특성

3. 실험방법

4. 결과분석

5. 결론

참고문헌

키워드

쇄석 진동다짐 최대 최소응력비 Crushed Stone vibro-compaction Ratio of the maximum to the minimum stress