隧道开挖结构、隧道开挖方法以及隧道施工方法
By setting up support and anchoring components in the tunnel excavation structure, and combining advanced support and initial support, the problem of deformation control in vertically dipping phyllite tunnels was solved, and the safety and efficiency of tunnel construction were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY URBAN DEVELOPMENT INVESTMENT GROUP CO LTD
- Filing Date
- 2023-03-20
- Publication Date
- 2026-07-17
AI Technical Summary
When constructing tunnels in vertically dipping phyllite sections, existing technologies struggle to effectively control tunnel deformation and the stability of the surrounding rock, especially under high ground stress conditions, which poses safety hazards and limits construction progress.
The tunnel excavation structure includes a lower bench, a middle bench, and an upper bench arranged sequentially along the tunnel extension direction. Support components and anchoring components are installed at the upper bench and the middle bench. Combined with the advanced support and initial support structure, an effective support system is formed to control tunnel deformation.
It significantly reduces tunnel deformation by 20-30%, shortens the initial support ring formation time, improves construction safety and efficiency, and ensures smooth construction of tunnel structures in vertically dipping phyllite strata with poor surrounding rock conditions.
Smart Images
Figure CN116480365B_ABST