Journal of Jilin University(Earth Science Edition) ›› 2018, Vol. 48 ›› Issue (6): 1898-1906.doi: 10.13278/j.cnki.jjuese.20180026

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Fitting Test on Probability Distribution of Discontinuity Parameters in Rock Mass Based on Photogrammetry

Wang Mingchang, Xu Zeshuang, Wang Fengyan, Meng Xiangyu, Ding Qing, Zhang Xinyue   

  1. College of GeoExploration Sicence and Technology, Jilin University, Changchun 130026, China
  • Received:2018-02-01 Published:2018-11-26
  • Supported by:
    Supported by National Natural Science Foundation of China(41472243),Open Fund of Key Laboratory of Urban Land Resources Monitoring and Simulation,Ministry of Land and Resources(KF-2016-02-008)and Open Research Fund Program of Hubei Province Key Laboratory of Regional Development and Environmental Response(2015(B)003)

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Abstract: The uncertainty and complexity of rock discontinuities such as trace length, occurrence and spatial combination form make it difficult to study the whole geometry of structural plane. The discontinuous surfaces with large number of random distributions in rock mass are statistically similar. Using statistical methods to describe the structural plane parameters is the basis for 3D network simulation of rock random discontinuities, and it can also provide a reliable basis for stability evaluation of rock mass. Based on the digital close-range photogrammetry technology, the slope of Dongsheng quarry in Jingyue Development Zone of Changchun City was investigated and studied, and a lot of high precision rock mass structure details were obtained such as long trace occurrence, spacing, aperture geometry parameters. We compiled the Kolmogorov-Smirnov (K-S) test program by Matlab to test the probability distribution of the structure parameters, analyzed the structure parameter types of probability distribution, used SPSS software to test the correctness of the program, and introduced and selected the optimal fitting probability model which accords with a variety of probability distribution parameters. The results show that the length and spacing of the structural surfaces in the study area obey the lognormal distribution, and the shape of the structure obeys the Gamma distribution.

Key words: close range photogrammetry, structural surface parameter, K-S method, probability distribution, fitting test

CLC Number: 

  • P583
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[1] Wang Feng-yan，Chen Jian-ping，Yang Guo-dong，Sun Feng-yue，Jiang Qi-gang. Solution Models of Geometrical Information of Rock Mass Discontinuities Based on Digital Close Range Photogrammetry [J]. Journal of Jilin University(Earth Science Edition), 2012, 42(6): 1839-1846.
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