Earticle

초록

한국어

이 연구는 현재 비탈면 녹화에 많이 사용되고 있는 공업용안정제와 이 연구에서 현장에 적용한 식물섬유안정제를 이용하여 사전실험과 도로건설현장에서의 적용실험을 통하여 화강 풍화토 비탈면에서 토사유출방지효과를 분석하고자 수행되었다. 연구는 2012년에 한국도로공사 도로교통연구원과 충주제천사업단에서 수행되었으며, 주요 연구결과는 다음과 같다. 이 연구 에서 실험에 사용된 화강풍화토는 토성분석결과 사토로 분석되었다. 식물섬유안정제는 단가가 24,000원/kg, 공업용안정제는 4,000원/kg, 라텍스안정제는 36,000원/kg, 수용성아크릴안정제는 28,000원/kg으로 조사되었다. 실내모형비탈면 1차 실험에서 식물섬유안정제(E-SB; Eco-Spray Stabilizer)와 라텍스안정제, 공업용안정제(CMS; Carboxy methyl- starch), 수용성아크릴안정제 종류별로 인공강우실험을 하였는데, 현장 시공업체에서 가장 많이 사용되는 공업용안정제 (CMS)와 이 실험에서 토사유출감소효과가 좋은 식물섬유안정제(E-SB)를 선정하였다. 라텍스 안정제는 토사유출감소효과가 좋았지만 고가이며 점착성분이 강해 다루기가 불편하여 2차 실험과 3차 실험에서는 제외하였다. 2차 실험은 실험구(0.6m×1m×0.1m)를 만들어 경사도 45°로 조성한 후 4가지 토양안정제를 혼합하여 화강풍화토 실험구에 투여한 후 인공살수 실험을 실시하여 유출되는 토사량을 수집․측정하였는데 식물섬유안정제가 토사유출감소효과가 우수 하였다. 3차 현장 실험에서 식물섬유안정제(E-SB)의 고속도로 현장 적용 실험결과 성토비탈 면과 절토비탈면에서 기존 공업용안정제(CMS)에 비해서 토사유출이 적게 분석되었다.

영어

This study analyzed the effects of soil stabilizers-an industrial soil stabilizer, widely used in greening cut-slopes, and a vegetable soil stabilizer, used in this study- on preventing soil runoff from the weathered granite slopes in three experiments conducted on: 1) indoor model of cut-slope 2) artificial cut-slopes and 3) cut-slopes in road construction sites. The first phase of this study, which used the indoor cut-slope model, was conducted from February to March of 2012. The second phase of the study, which was conducted on the artificial cut-slope, was conducted from April to May. The third phase, which involved the field application at the road construction site, was conducted from June to November. The study was conducted by researchers from Korea Expressway Corporation Research Institute and Chungjoo-Jaecheon Corporation. Key findings are as discussed below. The soils from weathered granite used in this study was determined to be sandy soil according to soil analysis. The unit prices of soil stabilizer were marketed at 24000 W/kg for vegetable, 4000 W/kg for industrial, 3,6000 W/kg for latex polymer, 28,000 W/kg for water-based, acrylic type. The first set of experiment was conducted on the indoor model of a cut-slope under the rainfall simulation to test vegetable soil stabilizer (E-SB; Eco-Spray Stabilizer), latex based soil stabilizer, industrial stabilizer (CMS; Carboxy methyl-starch) and water-based acrylic stabilizer; the industrial stabilizer (CMS) that is most widely used in construction currently and the vegetable soil stabilizer (E-SB) that yielded high reduction of soil runoffs in this study were selected. The latex-based stabilizer was effective in preventing soil runoffs, however, it was excluded in the successive second and third experiments due to its high costs and strong adhesiveness that compromised its usability. The second experiment was tested on an artificial cut-slope (45°, 0.6m×1m×0.1m). After the mixture of 4 types of soil stabilizers were administered on the weathered granite slope, the volume of soil runoffs from rainfall simulation was collected and measured. The vegetable soil stabilizer was shown to be highly effective against soil runoffs. The third set of experiment, a field study performed on the cut and fill slopes at a highway construction site, revealed that vegetable soil stabilizer (E-SB) resulted in less soil runoffs in comparison to the industrial soil stabilizer (CMS).

목차

요약
ABSTRACT
서론
재료 및 방법
1. 실험대상지
2. 실험방법
3. 분석방법
결과 및 고찰
1. 사전실험결과
2. 현장 적용 실험결과
결론
참고문헌

저자

• 전기성 [ Gi-Seong, Jeon | 한국도로공사 도로교통연구원 ]
• 전삼수 [ Sam-Su, Jun | 한국도로공사 도로교통연구원 ] 교신저자

참고문헌