To explore the interaction between the disc cutter of
tunnel boring machines (TBMs)/ shields and rocks, rationally select equipment
types for different rocks and select cutterheads and cutter configuration, and
improve the rockbreaking efficiency, the wear mechanism of disc cutters is analyzed
according to the wear shape of the disc cutter edge of TBMs/shields in hard
rocks in various locations in China. From the obtained results, the following
conclusions are drawn: (1) the wear shape of disccutter
edges varies with different boring modes, parameters, rock strengths, and disccutter hardness gradients when different TBMs/shields are used in
hard rocks; (2) the wear shape of cutter edge results from specific boundary
conditions, which affect the boring efficiency; (3) the rational selection of
equipment, boring modes, parameters, and cutter configuration according to the
analytical results of disccutter edge wear shape could
improve rockbreaking efficiency and increase the
service life of disc cutters.
ZHANG Ningchuan
. Analysis of Wear Shape of DiscCutter
Edge of TBM/Shield and Optimization Measures[J]. Tunnel Construction, 2021
, 41(4)
: 657
-665
.
DOI: 10.3973/j.issn.2096-4498.2021.04.017
