A deformation control support system for hard surrounding rock tunnel and a construction method thereof
By using mechanical devices and hydraulic systems carried by tracked vehicles, the problem of installing steel arch frames in tunnels with hard surrounding rock was solved, achieving rapid and stable support connections, improving construction efficiency and structural stability, and reducing the risk of collapse.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD
- Filing Date
- 2026-06-15
- Publication Date
- 2026-07-17
AI Technical Summary
In the construction of tunnels in hard surrounding rock, the installation of steel arch frame segments is complicated by elastic rebound errors and insufficient manpower, which makes it difficult to align the bolt holes of the connecting ear plates, resulting in residual gaps and separation problems caused by subsequent concrete shrinkage.
Using mechanical devices carried by tracked vehicles, the steel arch frame is precisely positioned and quickly connected through components such as hydraulic rods, disc springs, and insert rods. Combined with fine-tuning and clamping components, the steel arch frame is ensured to fit tightly against the tunnel roof, and the angle is quickly calibrated through a combination of automatic mechanical positioning and manual intervention.
It improved the installation efficiency of steel arch frames, reduced manual assembly time, lowered the risk of surrounding rock disturbance and collapse, ensured the stability and continuity of the support structure, and shortened the assembly cycle.
Smart Images
Figure CN122407239A_ABST