• Journal of the Korean GEO-environmental Society
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• v.11 no.12
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• pp.19-25
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• 2010

Inventory survey is process collecting data about cut slope. It's different from inspection. Collected data are being used get at status about cut slope along national roads. And we analyse between current situation and data about collapse slope. It helps finding better method about maintenance of cut slope. We found changes in the situation between data at present and data at 10 years ago. We will research collapse and counterplan by cause.

• Korean Journal of Environment and Ecology
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• v.14 no.2
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• pp.127-138
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• 2000

도로건설에 의한 식물생태계 영향을 종합적으로 고찰하기 위하여 도로로부터 산림 내부에 이르는 거리에 따른 식물군집구조의 변화, 비탈면에 도입한 외래종의 식생천이 및 확산현황, 귀화식물의 분포현황을 파악하였다 도로로부터 거리에 따른 식물군집구조 분석결가 도로건설로 인해 발생된 비탈면과 비탈면 끝지점에서 산림방향으로 10~20m 구간까지 종구성의 변화가 나타났다. 절개비탈면 급속녹화용으로 도입된 큰김의털(Tall Fescue) 경관 및 식물생태계에 악영향을 미치고 있었다 성토비탈면에 파종된 외래종들은 빗물이나 바람을 따라 산림 내부로 유입되어 햇빛이 잘 드는 계곡부나 산림 내부에 잔조하고 있어 식물생태계에 영향을 미치고 있는 것으로 판단되었다 성삼재관통도로변에서 조사된 귀화식물은 총 13과 35속 44종 1변종으로 45종류이었고 도로건설로 나지가 넓게 분포하는 곳이나 이용객이 집중되는 지역에서 출현종수 및 빈도가 높았다.

• Geotechnical Engineering
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• v.31 no.5
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• pp.11-19
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• 2015

• 지반과기술
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• v.9 no.1
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• pp.11-20
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• 2012

• The Journal of Engineering Geology
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• v.27 no.4
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• pp.417-427
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• 2017

This study aims to present cases of rock slope failures caused by geological structures. Status of slope failures, results of cause analysis and stabilizing methods are introduced, focusing primarily on rock slope failures caused by specific geologic structures, such as intersection of faults infilled with clay, foliation and fault shear zone by dike intrusion and deep-seated clayey layer along lithologic boundary. Detailed geological survey, geophysical exploration and boring survey were conducted for cause analysis. Stabilizing method to prevent further slope failures and to ensure long-term stability of slopes were established, considering characteristics of geological structures, types of failure and geological conditions.

• Journal of Forest and Environmental Science
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• v.16 no.1
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• pp.17-33
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• 2000

The construction of a public cemetery in Kangnung city includes terraced graveyard with cutting or banking in mountain which has severe altitude differences with a slope of $30^{\circ}$. Therefore, there are scattered cutting and banking sections with vertical height more than 15m. Especially, if the slope failure or the loss of a graveyard happens after graveyard establishment due to surface flow and inflow around. it is difficult to repair, causing serious public censure. Accordingly, revegetation works were examined that need protection of slope. The specific content of the study was the selection of slopes requiring special care through blueprint and field investigation. the measurement of the physical property of slope and the situation of vegetative growth, the investigation of vegetation in slopes and the selection of vegetation. and the analysis of soil condition of slopes and the physical condition of slope sediment. On the basis of investigations some alternatives were proposed.

• The Journal of Engineering Geology
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• v.30 no.4
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• pp.649-661
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• 2020

Cut-slope management system (CSMS) has been investigated all slopes on the road of the whole country to evaluate risk rating of each slope. Based on this evaluation, the decision-making for maintenance can be conducted, and this procedure will be helpful to establish a consistent and efficient policy of safe road. CSMS has updated the database of all slopes annually, and this database is constructed based on a basic and detailed investigation. In the database, there are two type of data: first one is an objective data such as slopes' location, height, width, length, and information about underground and bedrock, etc; second one is subjective data, which is decided by experts based on those objective data, e.g., degree of emergency and risk, maintenance solution, etc. The purpose of this study is identifying an data application plan to utilize those CSMS data. For this purpose, logistic regression, which is a basic machine-learning method to construct a prediction model, is performed to predict a judging-type variable (i.e., subjective data) based on objective data. The constructed logistic model shows the accurate prediction, and this model can be used to judge a priority of slopes for detailed investigation. Also, it is anticipated that the prediction model can filter unusual data by comparing with a prediction value.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.501-502
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• 2018

본 논문은 건설CALS시스템에 20년간 축적된 데이터를 활용하기 위해서 2018년부터 2020년까지 개발 예정인 과적단속 최적 위치 시기 예측 서비스, 비탈면 붕괴 위험도예측서비스, 도로점용(연결) 허가 가능구간 예측 서비스, 보상비 예측 서비스 등 4종의 건설CALS 빅데이터 서비스 기술 개발을 위한 현황분석을 기술하였다. 개발된 서비스는 2020년에 국토교통부 소속기관인 지방국토관리청과 국토관리사무소의 업무담당자 및 국민에게 시범 적용하여 빅데이터 서비스의 효과를 검증하고, 단계적으로 국토교통부 도로관리 업무에 적용할 계획이다.

• Journal of the Korean Geosynthetics Society
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• v.18 no.4
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• pp.225-242
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• 2019

Rockfall failure at the access road to Seokguram were occurred due to the earthquake on September 12, 2016. A detailed investigation was carried out in order to find out the cause of the rockfall, to identify the risk of the entire sites, and to prepare proper countermeasure methods and mitigation. We checked for geological and topographical characteristics of overall slopes alongside the access road to Seokguram and made a face map. In addition, we analyzed topographical factors caused by the earthquake through calculating a degree of slope, degree of bearing, upslope contributing area, and wetness index with the use of shading relief map. As a result, we confirmed that the large rockfall occurred with a weak section. In this study, we also evaluated the overall slope stability of the entire access road to Seokguram in order to classify it into danger and caution zones depending on the risk of collapse.

• Proceedings of the Korean Geotechical Society Conference
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• 2010.09a
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• pp.722-726
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• 2010

Inventory survey is process collecting data about cut slope. It's different from inspection. It contains not only basic information about cut slope, especially location, GPS positioning, height, length, weathering, joint direction, water conditions but also level of danger and damage. Collected data are being used get at status about cut slope along national roads. And It helps judging about priority of detailed investigation. According to results of analysis, we found better method about maintenance of cut slope. Later on, if inventory research is finished, we will understand characteristics of collapse slopes.