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2023-12-22
Operation Department
Date: December 2023
Location: Zhuhai City
Project Name: 220kV Diequan (Jinhai) Power Transmission and Transformation Project Hongwan Section Cable Tunnel Project
Project Type: Electric Power Engineering
Equipment Details: Tangxing Technology SPB 3500mm slurry balance pipe jacking machine
Geology: Soft soil
Jacking Distance: 360 meters
Engineering Difficulties: During the pipe jacking construction process, the pipe jacking machine needs to pass through Hongwan Bay and houses. The geological conditions are extremely poor, mainly composed of silt, and the difficulty is high. During jacking, it is easy to cause risks such as vertical displacement, deformation, and cracking of the tunnel structure, and the construction safety risk is high.
Engineering Significance: Once completed, the project will effectively improve the region's ability to withstand extreme weather such as typhoons, and greatly improve the reliability of Zhuhai Power Grid's power supply to Hengqin and Macau.
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