Construction process of floral tube dry filling piles
A kind of construction technology and cast-in-place pile technology, which is applied in the direction of sheet pile wall, foundation structure engineering, construction, etc., can solve the problems of lack of clear indicators, cumbersome construction technology, poor compactness of the upper part, etc.
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[0239] The flower tube dry cast-in-situ pile is composed of dry concrete, flower tube and other items. The specific process steps of implementation can be divided into four process parts. Each part is introduced in detail as follows:
[0240] 1. Hole forming process:
[0241] 1) Hole-forming piles above the groundwater level
[0242] Adopt dry hole-forming process: mechanical, manual and other traditional hole-forming processes. The form is determined according to the specific geological conditions and does not need to be improved.
[0243] 2) Hole-forming piles below the groundwater level
[0244] This process is suitable for engineering sites with geological conditions such as sand layer, silt layer, cohesive soil layer interbed or the combined stratum among them.
[0245] Drilling → drill in place → low stroke, high-speed rotation, clean water drilling → reach the drilling depth → uniform stroke, high-speed rotation, clean water to lift the hole stop → uniform stroke, hi...
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