수중 토사의 토량환산계수 산정에 관한 연구 = Studies on soil conversion factor estimates of underwater sediment

다국어 초록 (Multilingual Abstract)

Studies on soil conversion factor estimates of underwater sediment

Yeun Hoi Bae

Depatment of Construction Environmental Engineering
Graduate School, Kyungpook National University
Daegu, Korea
(Supervised by Professor Park, Sung-Sik)

(Abstract)
Civil Engineering has recently developed into a large-scale trends and road, rail, airports, rivers, harbors, dams, etc. Most of the Civil Engineerings have point of sameness to construct to use earth and sands.
Enlargement of civil Engineering has led to an increase in size of the earthwork, and the rate of change based on the circle ground excavated soil volume for accurate estimating the economic value due to a change in the orrect application of ratio of earthvolume is to be preferred.
Recently The four rivers projects were conducted in the stream sediment sampling some different regions, depending on the circumstances but most of the sediment samples are collected by using a dredge pump, dredgied earth materials put open storege area for a long time and a new yard was kept in the form that are exported for sale or use.
Dredged soil caused four rivers project can be classified into aggregate used in constuctions and aggregate to piled up in open air-yard. and the loss of a large amount of aggregate occurred during this process. But this losses were not predictable at the time of occurrence underwater dredge and after aggregate sales completed I was able to find a difference in the carry and export volume. lack of measurement data caused clear rational reason of aggregate loss.
So in this study, when lack of measurement data, Like four rivers bed arrangement construction, among several causes of loss resulting from dredging, I understand that soil pore water of dredged soil effect to change of volume and range & cause of loss through a secure laboratory model tests of related data. I present new direction to apply Soil Volume Conversion Factor by the dredging of sediment.

목차 (Table of Contents)

• 목 차
• 목 차 ⅰ
• 표 목 차 iv
• 그림목차 ⅴ
• 제 1 장 서 론 1
• 1.1. 연구배경 및 목적 1
• 1.2. 연구동향 3
• 1.3. 연구내용 및 방법 4
• 제 2 장 흙의 분류 및 토량의 토량환산계수 6
• 2.1. 흙의 구조 6
• 2.1.1. 비점성토 구조 6
• 2.1.2. 점성토 구조 7
• 2.2. 흙의 일반적 분류 9
• 2.2.1. 조립토 9
• 2.2.2. 세립토 9
• 2.2.3. 유기질토 10
• 2.3. 흙의 입경에 의한 분류 10
• 2.3.1. 체분석 10
• 2.3.2. 비중계 분석 13
• 2.4. 삼각좌표 분류법 16
• 2.5. 흙의 공학적 분류 17
• 2.5.1. 흙의 통일분류법 17
• 2.5.2. AASHTO 분류법 20
• 2.6. 토량환산계수 22
• 2.6.1. 토량환산계수의 정의 23
• 2.6.2. 토량환산계수의 기준 24
• 2.6.3. 흙의 다짐 및 다짐시험 29
• 제 3 장 수중 토사의 토량환산계수의 산정을 위한 실내실험 34
• 3.1. 흙의 구성 35
• 3.1.1. 중량-체적 관계 35
• 3.2. 4대강 살리기 사업 하천골재 준설 36
• 3.2.1. 4대강 살리기 사업 낙동강 준설 골재장 현황 38
• 3.2.2. 수중골재 채취 41
• 3.3. 4대강 준설골재의 손실률 43
• 3.3.1. 준설골재의 손실 44
• 3.3.2. 준설위치별 단위중량 45
• 3.3.3. 준설골재의 손실발생 원인 46
• 3.4. 수중 토사의 단위중량 산정을 위한 실내실험 47
• 3.4.1. 실험재료 47
• 3.4.2. 실험도구 48
• 3.4.3. 실험순서 49
• 3.4.4. 실험방법 50
• 3.5. 실내실험 결과 53
• 3.5.1. 대기중 퇴적된 토사의 단위중량 변화 54
• 3.5.2. 수중에서 퇴적된 토사의 단위중량 변화 56
• 3.5.3. 낙동강 준설토의 체적 변화 59
• 3.5.4. 실내모형실험의 한계성 66
• 제 4 장 결론 67
• 참고문헌 70
• Abstract 72