To explore the
deformation control method of the existing old residential buildings
undercrossed by Wuliu avenueYaohai park shield section of phase Ⅲ project of Hefei metro line 1, the determination method of
allowable deformation and the deformation control method considering the
boundary, time, and space are put forward. The construction control indexes are
proposed through the safety assessment of residential buildings according to
local tilt. Then, the engineering analogy method is used to conduct field test
study in the test section where the geological conditions and the surrounding
environment are similar. The optimal scheme of reducing the initial setting
time of backfill grout, injecting second serous in time, adopting short scraper,
and overcut cutter shrinkage driving is proven to be
effective to reduce the length of open space. The construction tunneling
parameters are summed up and applied to the construction section under the
residential buildings. The monitoring results show that the maximum deformation
settlement is 6.48 mm and the maximum local inclination is 0.000 8, which meet
the requirements of the code design.
LIU Zhitao, ZHANG Jingjing, WANG Lichuan, LIU Xupeng, HUA Wei
. Construction Control Technology of Shield Tunneling
underneath BrickandConcrete
Residential Buildings: a Case Study of Phase Ⅲ Project of Hefei Rail Transit Line 1[J]. Tunnel Construction, 2022
, 42(S1)
: 427
-432
.
DOI: 10.3973/j.issn.2096-4498.2022.S1.050
