I. Core Specifications & Design Principle
Dimensions:
Rectangular design: 720mm (short side) × 880mm (long side) inner clearance
Total thickness: 190mm (includes cover body, anti-settlement layer, and anti-fall sub-cover)
Structural Innovation:
Unlike traditional "pedestal-type" designs, its spigot-and-socket flange transfers >80% traffic loads directly to the road base—not the brick shaft—preventing perimeter rutting and step settlement.
II. Five Battlefield-Proven Advantages
1. Settlement Elimination
Flange-asphalt integration maintains ≤3mm deviation after 5 years (vs. >15mm for conventional covers).
Tapered seal + water-deflecting rim blocks rain erosion.
2. 65-Ton Load Mastery
190mm thickness + radial ribs withstand 65-ton loads (exceeding GB/T 23858 D400’s 36-ton standard). Zero deformation under daily container truck traffic.
3. Five-Safeguard Fortress
Noise: ≤43dB with T-rubber damping (ambient-level quiet).
Slip Resistance: Laser-etched waves + micro-knurls (wet friction 0.68 > 0.6 national standard).
Theft-Proof: Zero scrap value + hidden hinge locks (0% theft rate).
Anti-Bounce: Spring arms neutralize wheel impacts.
Anti-Fall: Mechanically locked sub-cover.
4. Extreme Environment Veteran
Hot-dip zinc + epoxy-asphalt coating resists deicers/acid/oil (25+ years salt-spray endurance).
Stable from -40°C (permafrost) to 180°C (steel mill radiation).
5. Smart O&M Revolution
Optional RFID chip stores pipeline depth/attributes/maintenance logs—5x faster inspections via mobile scan.
III. Five Battle-Proven Advantages
1. Settlement Eradication
Frame-asphalt integration maintains surface flatness (≤3mm deviation after 5 years in port freight lanes).
Waterproof edge design blocks rain infiltration.
2. 60-Ton Safety Margin
Deep-pot structure + cross ribs withstand overloads (e.g., 60-ton dump trucks), bending without fracture.
3. Five Safeguards in Action
Noise: ≤45dB in residential areas.
Slip Resistance: 3mm diamond knurls (friction coefficient 0.65 when wet).
Theft Deterrence: Near-zero theft rate (non-recyclable material + hidden locks).
Anti-Fall: Dual-layer protection.
4. Extreme Environment Adaptability
Resists deicers, acid rain, and oil (-30°C to 150°C stable performance).
5. Smart O&M Efficiency
RFID "E-ID": Scannable pipeline data via mobile devices.
Zero Maintenance: 30-year service life; only requires debris flushing.
IV. Critical Installation Protocol
1. Anti-"Soft Foot" Anchoring
Excavate >130cm diameter (frame +20cm margin).
Backfill with steel-fiber C30 concrete (no loose soil).
M20 anchors ≥35cm deep at 15° outward angles.
2. Road Integration Lifeline
Frame top 4–6cm below road surface.
Two-stage asphalt compaction: 140°C initial, 110°C final.
Joints filled with 180°C modified asphalt.
3. Drainage Slope Optimization
5° outward tilt (vs. standard 3°)—30% faster stormwater drainage via 950mm length.
V. Key Applications
Ultra-Heavy Zones: Port container yards, airport taxiways, special vehicle corridors (100-ton capacity).
Sensitive Geology: Soft soil, filled areas prone to settlement.
Smart City Showcases: Core pipeline nodes for municipal IoT.
