Research Article

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

Table 18

Assigned values of the evaluation indexes for assessing the tunnelling adaptability of an EPB TBM.

Evaluation indexUnitSection C-HSection N-Q
Left lineRight lineLeft lineRight line

V1kN49,588
V2kN∙m7,806
V3%33
V4m3/h440
V5mm90
V6MPa0.1370.1370.1370.137
V7kPa242.2269.9221.2141.0
V8mm64.1264.8368.6463.55
V9%77.270.248.985.3
V10m01.200