A new type of pile foundation reinforcement cage center positioning inspection device
By combining supports, laser emitters, and sensors on the pile foundation and rebar cage, the problem of inaccurate positioning of the rebar cage during construction was solved, enabling precise positioning and efficient installation of the rebar cage, thereby improving the bearing capacity and construction quality of the pile foundation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHIJIAZHUANG TIEYUAN ENG CONSULTANTS CO LTD
- Filing Date
- 2026-04-10
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the steel cage cannot be accurately positioned during pile foundation construction, especially when using mud slurry for wall protection, making it difficult to check for deviations, which makes it difficult to guarantee the bearing capacity and construction quality of the pile foundation.
A new type of pile foundation reinforcement cage center positioning inspection device is adopted. By setting supports, laser emitters, PSD sensors and linear charge coupling devices on the pile foundation and reinforcement cage respectively, the device can accurately detect the center of the reinforcement cage and the center of the pile foundation and measure the offset in real time. The device provides intuitive feedback using a display and sensor lights.
This technology enables real-time center positioning detection and precise measurement of offset during the lowering process of the reinforcing cage, improving the installation accuracy of the reinforcing cage and the construction quality of the pile foundation, and ensuring the bearing capacity and service life of the pile foundation.
Smart Images

Figure CN122406735A_ABST