What is the significance of foundation pit excavation in bridge construction?

Hello!

I have 10 years of bridge construction experience. The so-called foundation pit excavation is to dig a pit and carry out construction in the pit. After the construction of bored pile foundation, the reserved steel bar at the pile head should be removed first, generally 50 cm to 1 m, and you need working face and working space at this time. Excavator is used to excavate rectangular pit for construction, and tie beam reinforcement is installed and welded. According to the size of the slope, foundation pit should be considered.

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