The blockage and drainage problem often occur to
slurry shield circulation system when tunneling in fullsection
pebble formation. As a result, a design solution of parallel quarrying box is
studied and proposed for slurry shield crossing Luohe River in fullsection pebble formation of Bowuguan StationJiuduxilu Station on Luoyang Metro Line 2. The application research
of common parallel quarrying box, series quarrying box, new type of grille
roller quarrying box and straight pipeline selffalling
bypass quarrying are carried out successively, and industrial tests are also
carried out to improve the quarrying mode. The results show that: (1) The
straight pipeline selffalling bypass quarrying scheme
can solve the pipeline blockage and drainage problem when the slurry shield
tunneling in the stratum with high pebble content and large pebble diameter,
thus greatly improve the tunneling efficiency. (2) The new type of grille
roller quarrying box can solve the problem of drum lag. (3) For the newly
manufactured shield, it is suggested to adopt the optimized new grille roller
quarrying box scheme, which would be more efficient theoretically.
YE Zhong
. Targeted Optimization Design and Application of Slurry
Shield Circulation System in Fullsection Pebble
Formation[J]. Tunnel Construction, 2020
, 40(9)
: 1374
-1378
.
DOI: 10.3973/j.issn.2096-4498.2020.09.017
