Prefabricated diaphragm walls have many disadvantages,
such as single-width slenderness ratio, large weight, and multiple embedded parts.
These pose great challenges to positioning control of embedded parts, safety
risk of hoisting, and waterproof treatment. To address these challenges, an
overall construction scheme of on-site streamlined
prefabrication and intelligent tooling equipment installation is adopted, and
an integrated mold is designed and developed. Multi-point
positioning stud + customized fixture are used for high-precision positioning of CT embedded parts and threaded sleeves.
Internal and external temperature sensors and intelligent maintenance technology
are adopted to achieve streamlined prefabrication of diaphragm walls, thus
ensuring prefabrication accuracy and quality. Large double-crawler crane and customized sand box are used to achieve safe
vertical overturn of diaphragm walls. A set of intelligent equipment
integrating automatic walking system + automatic leveling system + multi-axis linkage electronic control robot arm is adopted to achieve high-precision positioning and installation of prefabricated diaphragm
wall and real-time monitoring of the entire process.
Finally, safe, high-quality, and efficient construction
of prefabricated diaphragm walls is realized.
HAN Sheng
.
Prefabrication and Installation Technology of
Permanent and Temporary Integrated Prefabricated Diaphragm Wall: A Case of Xichong Station of Shenzhen
Metro
Line 8 Phase Ⅲ
[J]. Tunnel Construction, 2025
, 45(S1)
: 260
-269
.
DOI: 10.3973/j.issn.2096-4498.2025.S1.026
