Identifying Effective Rock-Breaking Ratio Based on Rock Chip Information for Rock-Breaking Efficiency Evaluation of TBM

Figure 6

Rock chip cumulative volume distribution model for different groups: (a) group 1; (b) group 2; (c) group 3; (d) group 4; (e) group 5; (f) group 6; (g) group 7; (h) group 8; (i) group 9; (j) group 10; (k) group 11; (l) group 12.

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(b)

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(e)

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(g)

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