차원 레이저 측정기를 이용한 절리 간극의 측정

• 발행기관: 대한자원환경지질학회
• 저자명: 이희석 이연규 이희근
• 간행물 정보: 『자원환경지질』33권 4호, 309~320쪽, 전체 12쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 2000.08.30

영문 초록

Aperture is an important parameter for determining the hydraulic characteristics of fractured media. In this study the topography of artificial rock joint surface was measured using 3D laser profiloneter to analyze the apecture distributuin. The initial apeture distribution was determined when the contact area became one percent of total joint surface. The initial aperture distribution of granite joint, with the mean value of 0.78 mm and the standard deviation of 0.34 mm was much different from that of the marble joint, with the mean value of 0.57 mm and the standard deviation of 0.26 mm. Apetures of both granite and marble showed normal distributions. Apecture distribution with the contact area of 25% was also analyzed. Mean value was decreased to one third compared to the initial aperture, but the standard deviation was decreased slightly. To determine the spatial correlaiton of the aperture distribution variogram analysis was carried out on the initial aperture data. Most experimental variograms were fitted well with exponential model. It is expected that the measured apeture characteristics can be used for stochastic analysis of fluid flow through rock joints.

키워드

3차원 레이저 측정기 절리 간극 간극 측정법 재하상태 간극분포 절리 간극