一种适用于富水砂层无扩大端盾构始发井地铁车站盾构始发方法
By removing some of the retaining piles and side walls inside the station, using temporary columns to bear the vertical load, and combining horizontal grouting reinforcement and steel plate reinforcement, the problem of the inability to form a shield shaft was solved, enabling the smooth launch and reception of the tunnel boring machine, and ensuring construction safety and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 8 ENG GRP CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
Due to limited construction space in the city center, shield shafts cannot be formed, affecting the launching and receiving of the tunnel boring machine, especially in water-rich sand layers.
The construction method adopted was to remove part of the retaining piles and some side walls inside the station. The vertical bearing capacity was borne by temporary columns. Combined with horizontal grouting reinforcement and steel plate reinforcement, a water-stop curtain was formed to solve the problems of launching and receiving the tunnel boring machine.
The successful launch and reception of the tunnel boring machine in the water-rich sand layer ensured construction safety and quality, and solved the construction problems caused by urban land occupation conditions.
Smart Images
Figure CN120444035B_ABST