| Construction Process | Primary Equipment Selection | Core Functions and Application Advantages |
| Advance Support / Excavation | Three-Boom Drilling Jumbo / Multi-Function Drilling Rig |
Precise drilling (with overbreak/underbreak data feedback), equipped with advance drilling and advance support capabilities . Enclosed cabin keeps operators away from the tunnel face, ensuring high safety and reduced manpower requirements . |
| Bolting and Shotcreting Support | Wet Shotcrete Manipulator | Long-distance wireless remote-controlled high-efficiency shotcrete application, significantly reducing rebound rate and dust hazards, ensuring personnel safety. |
| Invert Works | Hydraulic Self-Propelled Invert Bridge |
Resolves cross-operation interference. Muck trucks pass normally on the bridge, while rebar tying and invert filling proceed simultaneously underneath . Integrated side drain/curved formwork, equipped with self-propelled hydraulic travel . |
| Waterproofing and Drainage | Waterproof Membrane Work Trolley | Provides an elevated working platform, mechanized assistance for membrane laying and positioning welding, improving the flatness of the waterproofing layer. |
| Secondary Lining | Automatic Pouring Secondary Lining Trolley |
Achieves high-precision full-section/partial-section lining concrete pouring, overcoming traditional blind-zone defects and enhancing lining compactness and surface quality . |
II. Detailed Description of Core Flagship Equipment
1. Fully Computerized/Hydraulic Three-Boom Drilling Jumbo
- Features: Integrates automated positioning, precise hole layout, and data acquisition .
- Advantages: Excavation personnel no longer need to stand in hazardous areas at the tunnel face ; automated drilling controls overbreak/underbreak, significantly reducing subsequent shotcrete repair and re-spraying costs ; reduces labor requirements and improves advance rate efficiency .
2. Hydraulic Self-Propelled Invert Bridge
- Features: Center drainage ditch formwork, invert curved formwork, and the bridge are integrated into a single unit .
- Advantages: Breaks through the bottlenecks of traditional simple towed bridges, namely low efficiency and high interference . Enables three-dimensional overlapping operations—"busy traffic on the bridge (muck hauling/material transport), bustling activity beneath (rebar tying/pouring)"—significantly shortening cycle times .
3. Intelligent Automatic Pouring Secondary Lining Trolley
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Features: Equipped with a multi-window automatic layered pouring system, high-frequency attached vibrators, and end-head bulkhead formwork.
- Advantages: Effectively resolves common defects of traditional secondary lining, such as crown voiding, cavities, crystallization, and water leakage , enhancing the overall durability of the tunnel lining structure.
III. Core Value of the Complete Equipment Suite
Replacing manpower with mechanization, reducing personnel with automation: Frees workers from the tunnel face with its high dust, high noise, and rockfall/collapse hazards, significantly improving construction safety .
Seamless process integration: Through standardized and automated equipment matching, resolves the pain point of cross-process interference, enabling continuous, uninterrupted tunnel flow operations .
Digitalization and quality traceability: Equipment collects construction parameters in real time, including excavation advance, grouting volume, and lining thickness, providing precise data support and full-process quality traceability on site .
