• The Journal of Engineering Geology
• /
• v.18 no.1
• /
• pp.37-44
• /
• 2008

KICT has been carrying out inventory research on the cut slopes of national roads. Inventory research results are basic data to cut slope management system. Inventory data are classified by general status, cut slope characteristics and inspector opinion. Inventory data are utilized to figure out dangerous slopes and decide survey ranking of detailed safety diagnostication. This paper drew the distribution area of dangerous cut slopes using inventory data in Chungcheongdo, and verified efficiency on distribution area of dangerous cut slopes by comparing occurrence frequency of real collapsed cut slopes.

• Journal of the Korean Geotechnical Society
• /
• v.25 no.12
• /
• pp.27-35
• /
• 2009

KICT (Korea Institute of Construction and Technology) and KISTEC (Korea Infrastructure Safety and Technology Corporation) have been carrying out inventory survey on cut slopes along national roads since 2006. Unlike precision safety check, cut slope inventory survey is a simple check about cut slope's characteristics with the naked eye to collect the data base of slope maintenance. Inventory survey is classified into general status, cut slope characteristics and inspector opinions. The inventory data are analyzed to identify dangerous slopes and decide a safety ranking. In this paper, we performed a correlation analysis using SPSS (ver.15) about the 10,461 cut slope inventory data which are collected in Kangwondo and Chungcheongdo from 2006 to 2008. We calculated the correlation coefficient between cut slope inventory data and the danger score derived from the data. And we evaluated cut slope inventory data which have the more influence on the danger degree of cut slope. According to results of correlation analysis, we found that inventory data influencing cut slope danger degree are stuck and fallen rock, orientation of discontinuity and angle of upper slope. And these data are slightly different by regionally. Later on, if inventory research is finished, we will understand regional characteristics of cut slopes.

• The Journal of Engineering Geology
• /
• v.22 no.2
• /
• pp.223-231
• /
• 2012

Many cut slopes are located near national highways, resulting in large annual damage to infrastructure from the collapse of cut slopes. Therefore, to effectively maintain cut slopes, high-risk slopes should be identified and monitored. In this paper, we evaluate the effectiveness of the management of cut slopes using the risk score calculated from cut-slope inventory data. The inventory survey, as a simple assessment of the characteristics of various slopes, was performed to collect basic data that could be obtained visually in the field for the management of cut slopes. This method is not a precise survey, and it was composed of the general status and characteristics of cut slopes, the inspector's assessment, and inventory data in order to estimate a risk score for each slope. In this paper, we calculated the risk score by investigating the present status of cut slopes adjacent to 10,461 national roads. In order to evaluate the effectiveness of using risk score data, we compared the score for stable slopes with those of failed cut slopes. Failed cut slopes occurred in sections with the highest risk score. The results show that risk score derived from the inventory survey of cut slopes are useful in the management of cut slopes with risk of failure and in monitoring large numbers of cut slopes.

• Proceedings of the Korean Geotechical Society Conference
• /
• 2000.11b
• /
• pp.199-209
• /
• 2000

산악지를 절취하여 형성된 국내의 고속도로 상에 분포하는 절토사면은 그 분포갯수가 많아 분포현황 조차 파악이 어려운 상태이며 체계적인 관리가 되지 않은 상태였다. 본 논문은 지난 1년동안 현장조사된 자료를 토대로 국내 고속도로상에 분포하는 절토사면의 현황을 파악하고 노선별로 절토사면에 대한 현장조사자료를 분석하여 각암종별 사면의 붕괴유형 및 붕괴원인에 대해 분석하였다.

• Proceedings of the KSEEG Conference
• /
• 2007.04a
• /
• pp.624-627
• /
• 2007

• Journal of Korean Society for Geospatial Information Science
• /
• v.18 no.4
• /
• pp.87-92
• /
• 2010

With recent localized heavy rain, the collapsing accident of the cut slopes occur repeatedly every year. The maintenance of the cut slopes is very crucial as the collapsing of cut slopes causes various calamities such as human causalities and sweeping away of the roads. By looking at the study of current situation of the cut slopes, designed for maintenance of cut slopes, the locations of the damaged districts are hard to figure out as they are represented through distance mark and longitude and latitude. In this paper has used NDGPS methods and VRS service through GPS signal corrections that are received by DGPS standard department to correctly analyze the exact location and the shape of the slope. The result of this analysis shows that both methods produce similar shape of the slope. Therefore, these two methods, NDGPS methods and VRS service, can be applied to other analysis of cut slopes in different areas.

• Proceedings of the Korean Geotechical Society Conference
• /
• 2000.11b
• /
• pp.123-135
• /
• 2000

절토사면 보호.녹화공의 개념과 분류체계가 아직까지 확립되어 있지 않으며, 현장에서 공법의 선정과 시공도 여러 가지 적절하지 못한 경우가 자주 발생하고 있다. 이러한 것을 해결하기 위해서는 이 분야에 대한 지속적인 투자와 관심, 그리고 관련회사의 사면의 환경특성을 고려한 성실시공이 수반되어야 한다. 또한, 절토사면의 장.단기적인 유지관리를 위해서 사면의 분포현황, 사면녹화공의 시공.관리상태, 환경특성 등의 자료를 조사하여 종합적인 사면유지관리시스템과 연계해야 할 것이다.

• 한국방재학회:학술대회논문집
• /
• 2008.02a
• /
• pp.589-592
• /
• 2008

National Road No.24 connects Ulju-gun in Ulsan Metropolitan City and Milyang city in south Gyongsang Province. The width of the road is small and narrow and many of the dangerous cut slopes are distributed along the way. In 2002, the government officer carried on the brief exploration about road cut slopes, and KICT conduct a detailed additionally investigations 57 dangerous cut slope sites of them. We gained a variety of information of the each slope such as length, slope, discontinuites et al.

• Proceedings of the Korean Geotechical Society Conference
• /
• 2008.10a
• /
• pp.921-929
• /
• 2008

도로절토사면을 지속적으로 관리함에도 불구하고 집중호우 시 도로절토사면 붕괴로 인한 피해가 속출하고 있다. 이러한 절토사면 붕괴에 의한 피해를 최소화 하기위해 각종 신공법들이 개발, 도입되고 있으며 IT와 접목된 상시계측시스템도 많은 현장에 적용되고 있다. 국토해양부 각 지방국토관리청 산하 국도관리사무소에서 관리중인 절토사면 중 현재 상시계측시스템을 운용하고 있는 현장은 총 93개소이며 이들 현장들에 문제가 발생할 시 즉각적으로 경보시스템이 작동하여 붕괴에 의한 피해를 최소한으로 줄일 수 있다. 또한 시스템 작동에 차질이 없도록 정기적인 현장 점검이 이루어지고 있으며 2008년 3월경에 한국건설기술연구원, 한국시설안전공단, (주)GMG에서 합동현장조사를 실시하였다. 이 현장조사 결과를 토대로 전국국도 상시계측시스템의 현황 및 특성, 상시계측시스템의 문제점 및 개선방향에 대하여 분석하였다. 이에 본 연구에서는 전국 국도 사면 중 상시계측 시스템이 설치된 현장에 대하여 암종별, 규모별, 지역별로 분석을 실시하였으며 특히 상시계측시스템이 설치된 현장 중 붕괴발생현장 및 붕괴위험 현장에 대하여 붕괴특성분석, 유지관리 사례분석 등을 실시하였다.

• Journal of Korean Society for Geospatial Information Science
• /
• v.18 no.4
• /
• pp.71-77
• /
• 2010

Cut Slope Management System(CSMS) is a systematic maintenance and management system designed to prevent the collapse of cut slopes located along national roads. In order to implement safe road operation system, KICT has started the inventory of cut slopes and developed a cut slope database since 2006. Cut slope database management system using GIS technology and navigation system was developed as a Information Technology application. Through the Cut Slope Navigation System(SLOPE-Navi.), the previously developed database was checked and verified. The converted cut slope inventory data and field investigation data of 28,707 cut slopes were loaded on the navigation map. We consider that the Cut Slope Navigation Management System can be useful as in-situ system, which can be systematic and effective DB management and operation to prevent cut slope collapses and establish a remedial countermeasure as mitigation concerning disasters.