The traditional drillandblast and shaft sinking methods have limitations in the construction
of deep and blind shafts. Accordingly, the mechanized shaft sinking technology
of a fullface shaft boring machine(SBM) with upper
muck discharge is proposed and studied to realize onetime
shaft completion. First, the design concept of the proposed SBM is introduced,
and the working principles of the excavation, muck discharge, support, and
guidance systems, along with the specific performance parameters of the
machine, are introduced. Second, the construction requirements of the starting
shaft, equipment assembly sequence, commissioning steps, specific process of
shaft section construction, and machine disassembly sequence are extensively
described, and the advantages and application prospects of fullface SBM are further summarized. Finally, based on an industrial
test of a fullface SBM with upper muck discharge in
the shaft construction of the Ninghai pumpedstorage
power station, the SBM construction schedule is analyzed, and the corresponding
countermeasures for unfavorable geologies are proposed.
JIA Lianhui
,
XIAO Wei
,
LYU Dan
,
CHENG Jianlin
,
HUANG Zhixu
,
XU Qiong
. Sinking Technology and Industrial Test of FullFace
Shaft Boring Machine with Upper Muck Discharge[J]. Tunnel Construction, 2022
, 42(4)
: 714
-719
.
DOI: 10.3973/j.issn.2096-4498.2022.04.021
