一种利用特殊管节实现十字相交等截面顶管通道的施工方法
By using special pipe sections and annular steel shells in cross-shaped pipe jacking tunnels, the problems of large project volume, high cost, and low mechanical reusability have been solved, achieving efficient underground tunnel construction, reducing costs, and expanding the applicability of pipe jacking tunnels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY LIUYUAN GRP CO LTD
- Filing Date
- 2023-11-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for constructing underground pedestrian crossings at urban intersections involve large-scale projects, high costs, low machinery reuse rates, and limited applications of pipe jacking tunnels in interactive underground pedestrian crossings.
Special pipe sections are used in combination with ordinary pipe sections and low-strength materials. A ring-shaped steel shell and sealing wall are set up to realize the construction of cross-shaped equal-section pipe jacking channels. The starting and receiving shafts are set up by open excavation, and special pipe sections are used at the junction. Low-strength materials and ring-shaped steel shells are used to meet the stress requirements. Stability and efficient use of mechanical equipment are achieved by combining construction procedures.
It reduces the number and length of projects, lowers investment in machinery and equipment and project costs, increases the utilization rate of machinery and equipment, solves the problems of ground traffic diversion and pipeline relocation, saves early project costs, and enhances the adaptability of pipe jacking channels.
Smart Images
Figure CN117905945B_ABST