Pre-Load 材로서 製鋼 슬래그의 活用 方案

다국어 초록 (Multilingual Abstract)

Abstract
Utilization of Steel-Making Slag as Pre-Load Materials
O,Se-Ran
department of Civil Engineering
The Graduate School of Industry
Sunchon National University
Steel making slag as pre-load material appiled to a construction job-site and examined a method of application. Then this study's result is as follows
1) Construction cost decreased because the unit weight of steel making slag is higher than earth and reduces stored materials. And environmental damages caused by developing borrow-pits could be minimized by utilization of steel making slag.
2) Construction period can be shortened because pre-loading could be continued in spite of raining by virtue of increased bearing capacity of slag whose internal friction angle is bigger than of that earth.
3) When earth and steel making slag is stored material with one-phase, the mean value of displacement 1.27m,0.57m respectively.
4) Decrease in pumping capacity of drainage faciligies would be minimized if earth layer made of soil bearing low tracing coefficient and enabling least scale is paved over sand mat, and you have to establish surcharge desigh separately each situation.
5) In utilization of steel making slag as a pre-load material, a design for sections are ① use of steel making slag,② way of a earth layer which inflow scale is intercepted is portion, ③ method of scale os intercepted with membrane layer, ④ use of steel making for horizontal drain.
6) It is expected that demand on steel making slag will be increased significantly following our project hereafter. And various researches are required to be continued in order to promote recycling of steel making salg which is compatible with environment.

목차 (Table of Contents)

• 목차
• List of Tables
• List of Figures
• Abstract
• Ⅰ. 서론
• 1-1. 연구 목적 = 1
• 1-2. 연구 내용 = 3
• Ⅱ. Pre-Loading 공법
• 2-1. 공법의 특성 = 4
• 2-2. 공법에 의한 압밀 효과 = 5
• Ⅲ. 시험재료 및 방법
• 3-1. 시험재료 = 8
• 3-1-1. 제강슬래그의 특성 = 9
• 3-1-2. 제강슬래그의 이용현황 = 11
• 3.2 현장 시험방법 = 13
• 3-2-1. 현장상황 = 13
• 3-2-2. 현장적용 방법 = 14
• Ⅳ. 결과 및 고찰
• 4-1. Pre-Load 높이 결정 = 16
• 4-2. 환경성 컴토 = 18
• 4-3. 침하량 검토 = 20
• 4-4. 제강슬래그 활용시 문제점 및 대책방안 = 24
• 4-4-1. 문제점 = 24
• 4-4-2. 대책방안 = 24
• 4-5. Pre-Load재로 제장슬래그를 사용한 설계방법의 제안 = 28
• 4-5-1. 제강슬래그만을 사용하여 Pre-Load 단면설계 = 28
• 4-5-2. Scale의 유입을 차단하는 토사층을 Pre-Load 단면의 일부로 설계 = 28
• 4-5-3. Membrane층에 의한 scale 차단 방법 = 28
• Ⅴ. 결론 = 32
• 참고문헌 = 33