Method for demolishing ultra high cast-in-place pile head
A technology of cast-in-situ piles and pile heads, which can be applied in the direction of sheet pile walls, buildings, and foundation structure engineering, etc., can solve the problems of low labor intensity, and achieve the effect of low labor intensity, practical operation, and smooth pile top surface
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[0019] The invention considers the problems of simple and practical operation and high safety factor in the demolition process. The super-high pile head adopts the procedures of removing the pile steel protection layer from the designed pile top elevation, cutting the pile steel reinforcement, drilling and breaking, and pulling to the pile head.
[0020] The specific operation steps of the present invention are detailed below with reference to the drawings:
[0021] 1) Excavate the pile head of the super high cast-in-place pile and measure the height of the broken pile head:
[0022] ① After the construction of the concrete bored pile is completed, the soil of the foundation pit is dug to the level of the bottom of the cushion, exposing the super-elevated pile head 1. The design pile top and the destroyed pile head elevation are measured and marked with red paint.
[0023] ②Select three points on the ground along the circumference of the pile top with an angle of 120° between the point...
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