Sensitivity Analysis in the Estimation of Mechanical Parameters of Engineering Rock Mass Based on the Hoek–Brown Criterion

Figure 4

Observation results of borehole camera. (a) Digital panoramic borehole camera system. (b) An example of the panoramic image of two meters of the wall of borehole K0+320-0-1. (c) One box of the drilling core samples from the borehole K0+320-0-1. (d) The generalized structure of rock mass surrounding borehole K0+320-0-1. (e) The generalized structure of rock mass surrounding borehole K0+320-0-2.

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