一种沉井式盾构水中对接施工方法
By employing the underwater docking construction method using caisson-type shield tunnels, and utilizing prefabricated caissons and advanced measurement technology, the challenges of docking accuracy and shield machine dismantling for long-distance, ultra-large diameter underwater shield tunnels were solved, achieving efficient and safe shield tunnel construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY SHISIJU GROUP CORP
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-17
AI Technical Summary
In the construction of long-distance, ultra-large diameter shield tunnels underwater, the unidirectional tunneling speed of the shield machine is slow, making it difficult to meet the construction period requirements. The underwater docking accuracy of the shield tunnel is low, and it is difficult to dismantle and lift out the shield machine. Moreover, the traditional underground docking method cannot guarantee high-precision docking and the integrity of the shield machine and cutterhead.
The underwater docking construction method of the shield tunneling machine is adopted. The prefabricated caisson is built in the water to dock the shield machine underwater. Ultrasonic radar, total station and three-dimensional laser scanning technology are used to ensure docking accuracy and the integrity of the shield machine.
It achieved high-precision underwater docking of shield tunnels, ensuring the integrity of the shield machine and cutterhead, improving construction progress, reducing construction costs, and minimizing docking risks.
Smart Images
Figure CN120626182B_ABST