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A Study of the Application of Digital Photogrammetry to Railroad Rock Slope Investigation System  

Ahn, Tae-Bong (우송대학교 철도건설환경공학과)
Publication Information
Journal of the Korean Society for Railway / v.12, no.4, 2009 , pp. 548-556 More about this Journal
Abstract
In order to evaluate applicability of rock cut-slope investigation system, typical clinometer and photogrammetry investigation system were used for rock slopes; first for 7 discontinuities, and secondly, 10 discontinuities, and the results were compared. The first verification was performed depending on discontinuity joint shapes and slope angles, and the second verification was performed depending on shot time and shot locations. The results showed that differences of dip direction $1^{\circ}{\sim}4^{\circ}$, dip $0^{\circ}{\sim}4^{\circ}$. In the second verification test, the differences of dip direction was $0^{\circ}{\sim}6^{\circ}$, and dip $0^{\circ}{\sim}6^{\circ}$. The photogrammetry method for rock slope survey system is quite reliable when clinometer generally shows ${\pm}10^{\circ}$ errors due to surface roughness and investigator.
Keywords
photogrammetry; rock slope; survey system; discontinuities;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 황상기, 박석록(2000), "암반의 불연속면 배열을 측량하는 원격 영상측량기," 한국지반공학회 2000 가을학술발표회논문집, pp. 697-704
2 황상기(2001), "암반 불연속면의 원격 영상측량 기법," 대한지질공학회지, 제11권, 2호, pp. 205-214
3 Hwang, S. G.(2001), "Photogramatric Measuerment of the Attitude of Plannar and Linear Features," Mathematical Geology Conference (IAMG2001), proceedings CD
4 Manh, N. V. and Hwang, S. G.(2004), "Image processing for the strike and dip measurement for the excavated rock surface," Annual Meeting of the Korean Society of Economic and Environmental Geology, pp. 87-91
5 moffitt, F.H.(1961), "Photogrammetry," International Textbook Company, pp. 455
6 황상기, Jason, C.G., Nguyen, Q.P. 윤경렬(2006), "암반 절취면 조사를 위한 원격 지질구조 측정기 Surface Mapper와 PDA 자료 입력 시스템 FieldNote와 지질정보시스템 Fieldmate," 한국지반공학회, 사면안정 학술발표회 논문집, pp. 119-126
7 이승호(2005), "3차원 영상처리를 이용한 암반사면 절리 측정 연구," 대한토목학회 논문집, 제25권, 제2호, pp. 79-84
8 Gaich, A., Ptsch, M., Fasching, A., and Schubert, W.(2004), "Contact-free measurement of rock mass structures using the JointMetriX3D system," International Journal of RockMechanics and Mining Sciences 41, p. 414
9 Kemeny, J. and Post, R.(2003), "Estimating three-dimensional rock discontinuity orientation from digital images of fracture traces," Computers & Geosciences, Vol. 29(1), pp. 65-77   DOI   ScienceOn