Deformation Analysis of Dam Structure using Terrestrial Laser Scanning System

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(1)지구물리. Vol. 9, No. 4, pp. 333-341, 2006. J Korean Geophysical Soc. 지상 레이저 스캐닝 자료를 활용한 댐체의 변형해석 김영경*․손호웅**․임은상*․임정열*․김기영* *한국수자원공사 수자원연구원 **배재대학교 건설환경철도공학과. Deformation Analysis of Dam Structure using Terrestrial Laser Scanning System Kim, Young-Kyung*, Shon, Howoong**, Im, Eun-Sang*, Lim, Jeong-Yeol* and Kim, Ki Young* *Dam Engineering Research Center, Korea Institute of Water and Environment Korea Water Resources Corporation, Korea **Dept. of Civil, Eng. and Railroad Eng., Paichai University. 요. 약. 주요어 ABSTRACT. Key words. 준공 후 상당한 시간이 경과한 댐에 대해서 안정성을 판단하거나 관리하는 방법은 극히 제한적이다. 댐체의 변형 특성 을 확인하기 위해서는 침하계와 같이 1 point에 대한 거동만 분석을 실시하였으나, 댐체의 전체적인 변형특성을 파악 할 수 없었다. 따라서 본 연구에서는 지상 레이저 스캐닝을 이용하여 댐체의 전체적인 변형 특성을 분석하였으며, 댐체 에 설치된 표면 침하계 결과와 비교하였다. 레이저 스캐닝 자료와 표면 침하계 결과를 분석한 결과 연구대상댐은 댐체 의 자중에 의한 변형거동을 보이고 있다고 판단 할 수 있었고, 현시점에서의 댐체는 안정화 단계에 접어들고 있다는 것을 확인할 수 있었다. 지상 레이저 스캐닝, 댐, 변형, 표면침하 Since considerable time passed after completion of dam construction, Methods to judge the safety and/or to manage effectively have extreme limitation and restriction. Behavior analysis based on one point (site) by such as surface settlement gauge is typically performed in order to define deformation characteristic of dam. However, deformation characteristics of entire dam can not be analyzed by this method. This study adopted state-of-the-art terrestrial laser scanning technology, and developed the technology to analyze the entire deformation of dam. The analysis was compare with the outputs of surface settlement gauge to confirm the performance of 3D terrestrial laser scanning technology. As a result, through analyses of laser scanning data and the surface settlement gauge data, the studied dam shows behavior of deformation by own weight of dam. It is possible to confirm that the dam is entering the stage of stabilization presently. Terrestrial Laser Scanning, Dam, Deformation, surface settlement. 1. 서 론. 이처럼 우리주변에서 흔히 접할 수 있는 댐에 안전상 의 문제가 발생할 경우에는 막대한 인적, 물적 피해를. 우리나라에는 약 18,000여개에 달하는 댐이 존재하. 발생시킬 수 있다. 그러나 준공 후 상당한 시간이 경과. 고 있으며 그중에는 대댐(높이 15m이상, 또는 높이 10. 한 댐, 즉 댐이 노후화된 댐의 제체 안정성을 판단하거. ∼15m로서 길이가 2,000m이상, 또는 저수용량 300만. 나 관리하는 방법이 극히 제한적인 방법밖에 없다. 즉,. ㎥이상)으로 분류되는 댐도 1,213개에 달하고 있다(한. 최근에 건설된 댐에 대해서는 내부변위, 간극수압, 응력. 국대댐회, 2000).. 과 변형률, 침투수량 등의 다양한 측정치를 토대로 댐체. Corresponding Author : 김영경([email protected]) 원고접수일 : 2006년 10월 2일 게재승인일 : 2006년 10월 28일.

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