Project Name: Civil Works Section II of the G228 National Highway (Pingyang Yuyang to Aojiang Segment)

Total Contract Value: RMB 228,196,969

Scope of Work:

Subgrade construction, bridgeworks, and asphalt pavement

Completion Date: September 28, 2021

Project Details:

• Mainline Length: 3.33 km

• Number of Bridges: 7

• Road Realignment: 1.258 km total

  
  

• 685 m realignment at K6+459 (left side)

• 573 m realignment at Wan’ao

• Road Classification: First-class highway standard

Major Quantities:

1. 

Subgrade Works:

• Earth excavation: 252,496 m³

• Static rock blasting: 290,227 m³

• Earth-rock mixed backfill: 155,546 m³

• Cement mixing piles (d = 0.5 m): 390,982 m

• M7.5 mortared stone retaining wall: 12,587 m³

• Retaining wall foundations (C25 concrete): 672 m³

• C20 rubble concrete spread footings: 4,257 m³

• Cantilever and counterfort retaining walls (C25 concrete): 4,196 m³

2. 

Bridge Works:

• Muxiang Bridge Left Span (ZK6+459.0): 1 span × 20 m

• Muxiang Bridge Right Span (YK6+560.0): 8 spans × 30 m

• Yantou Bridge (K8+429.0): 3 spans × 20 m

• Fengshan Bridge Left No.1 (K8+966.0): 8 spans × 20 m

• Fengshan Bridge Left No.2 (K9+381.5):

  Superstructure: Prestressed concrete T-beams + cast-in-place variable-section prestressed continuous concrete box girder

  Span configuration: 4×30 + (31 + 2×55 + 40) + 7×30

• Fengshan Bridge Right (K9+261.5):

  Superstructure: Prestressed concrete T-beams + cast-in-place variable-section prestressed continuous concrete box girder

  Span configuration: 12×20 + 3×30 + (40 + 2×55 + 31) + 8×30

• Lower Fengshan Bridge Left (K14+323.0): 5 spans × 13 m

3. 

Asphalt Pavement:

• Asphalt concrete pavement area: 25,743.59 m²