The
conventional precast assembly of the middle partition wall of shield tunnels
has many disadvantages, such as low assembly accuracy and construction
efficiency, high manual operation risk, and large cooperative interference of
multiple processes. Therefore, based on the design concept of the doublespan
door frame structure, an installation machine for the door frametype middle partition wall is developed for intelligent assembling
of the middle partition wall. The equipment can effectively realize efficient
collaborative work of various processes related to partition wall assembly. In
addition, it minimizes the traffic and logistics interference in the assembly
operation and shield tunneling. The equipment has multiple technical functions,
such as automatic operation analysis and decision execution, center hole
positioning based on visual camera identification, two sixaxis robot arms with active visualbased
attitude control, multisensor information fusion positioning, and heavy servo
displacement feedback control. It was employed for the first time in the JCXSG11 Bid project of the Shanghai Metro Airport Link, and good
application results were obtained: (1) The employment of the equipment meet the
specification and design requirements; the system control accuracy and
synchronization accuracy both reach 0.5 mm, and the assembling accuracy of the
middle partition wall reach ±2 mm, realizing high
precision assembling. (2) The equipment realizes onebutton
operation through intelligent control technology, realizing 38 min per cycle,
which improves the construction efficiency by more than ten times compared with
the traditional castinplace
methods. (3) The operating performance of the intelligent installation machine
for the door frame type middle partition wall is stable and reliable, and the
quality of the finished assembly of the prefabricated component is
controllable, which can improve the construction environment and achieve fast
and green construction.
YANG Junhuang
,
CHEN Hongming
,
LI Jing
,
SHANG Wei
,
ZHANG Hepei
. Development and Application of an Intelligent
Installation Machine for Middle Partition Wall in LargeDiameter Shield Tunnels[J]. Tunnel Construction, 2023
, 43(7)
: 1215
-1227
.
DOI: 10.3973/j.issn.2096-4498.2023.07.015
