06. BLOCK THEORY ANALYSES FOR ROCK SLOPE STABILITY. A CASE STUDY ALONG 3B HIGH WAY, XUAT HOA AREA, BAC KAN PROVINCE
Thanh bên bài viết
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Địa chất Geology
Giới thiệu
By developing the application of Block Theory (Goodman and Shi, 1985) to analyze fracture orientations at 32 survey sites along the 3B highway, about 12 km long, Xuat Hoa area, Bac Kan province, the analytical results showed that 06 rock slope surfaces at the survey sites: BK-15, BK-17, BK-34, BK-50, BK-52, BK-63 can be formed blocks that have a risk of high failure. The statistical results have also shown that, the rock slope surface with the group of fracture orientations: 315o/70o has 3/10 rock slope surfaces that have a risk of high failure; 002o/70o has 2/4 rock slope surfaces that have a risk of high failure; 032o/70o has 1/11 rock slope surface that has a risk of high failure; 212o/70o has no rock slope surface that has a risk of slope failure. These results showed that the fracture orientation of rock slope surfaces in the NW - SE direction can be formed blocks to be lower than the rock slope surfaces in the NE - SW direction and sub-horizontal direction.
Toàn văn bài báo
Trích dẫn
[2]. Goodman, R.E and Shi, G., (1985). Block theory nad its application to rock engineering. Prentice Hall, Englewood Cliffs, NJ.
[3]. Nguyen KQ, Dinh TT, Tran VT, Dao DT, Le VC, Nguyen DD, Nguyen TV, Nguyen VH, Pham VH, Phan CT, Tong DT, Tran TT, Trinh D, Vu K (2000). Geological and Mineral Resources Map of Viet Nam on 1:200.000: Backan (F-48-XVI). (Department of Geology and Minerals of Viet Nam, Ha Noi.
[4]. Nguyen, Q. P., (2009). Analysing rock stability using block theory and 3D surveying tools. PhD thesis, Paichai University, Korea: 149.
[5]. Nguyen, T., Nguyen, D. D. and Uong, D. K., (2012). Integration of analytical hierarchy process model (AHP) into GIS to establish a landslide hazard map of Quangtri province. Hue University Journal of Science, 74B (5): 143 - 155.
[6]. Phi, N.Q. and Thanh, P.T., (2014). Rock slope stability analysis using block theory and probabilistic approach: An application at national road No 6, Vietnam. In GeoInformatics for Spatial-Infrastructure Development in Earth & Allied Sciences GIS-IDEA. ISBN: 978-604-80-0917-5, 209 - 217.
[7]. Phi, N.Q., (2009). Analysing rock stability using block theory and 3D surveying tools. PhD thesis, Paichai University, Korea: 149.
[8]. Tran, M. L., Nguyen, Q. H., Nguyen, T. K., Hoang, D. T. and Bui, B. T., (2013). Forecast the risk and intensity of landslide in the Backan city area. Vietnam institute for building science and technology (IBST), No 3 and 4.
[9]. Truong, P. M., Nguyen, T. D., Tran, T. A. and Nguyen, V. N., (2011). A study on landslides in Danang city by using remote sensing and GIS technology. Proceeding GIS 2011 conference, pp. 230 - 237.
[10]. Truong Thanh Phi, Hong Thinh Phi, Viet Ha Nguyen (2018). Rock slope failure blocks and their relation to tectonic activity: A case study in 3B highway, Xuat Hoa area, Bac Kan province, Vietnam. Bulletin of the Iraq Natural History Museum, Vol 15, No 2, pp. 207 - 223.
[11]. Um, J.G., Kulatilake, P.H.S.W., (2001). Kinematic and Block Theory Analyses for Shiplock Slopes of the Three Gorges Dam Site in China. Geotechnical and Geological Engineering 19, pp. 21 - 42.
