Evaluation of the Adaptability of an EPB TBM to Tunnelling through Highly Variable Composite Strata

Table 19

Evaluated degrees of tunnelling adaptability of the EPB TBM.

Tunnel section	Section C-H		Section N-Q
	Left line	Right line	Left line	Right line
Degree of adaptability D	0.9135	0.8332	0.7621	0.9556
Adaptability grade	I	II	II	I