Breakwater cast-in-place pile pore-forming and pouring method

Abstract

The invention provides a bulwark cast-in-place pile pore-forming and pouring method. The method comprises the steps that step1, preparation before construction is conducted, specifically, after an excavator is used for digging downwards by 3 m, a foundation trench is leveled, concrete cushion layers are poured between an inner pile casing and an outer pile casing and within the range of 2 m outside the outer pile casings, after maintenance is conducted for 2 days, two sections of outer pile casings are arranged according to a positioning axis, intermittent welding is adopted for the connecting positions of the pile casings, and slurry pouring openings are cut in the upper surfaces of the outer pile casings; a slurry pouring port is symmetrically cut on the upper surface of the inner pile casing and the outer pile casing; then, the outer pile casing is lowered, after the outer pile casing is lowered, the center of the pile position is rechecked, and after rechecking is confirmed, earthwork is backfilled between the inner pile casing and the outer pile casing; step 2, holes are formed in a first large layer; step 3, holes are formed in a second large layer; step 4, holes are formed in a third large layer; step 5, a pile casing is lowered; step 6, holes are cleaned; and step 7, pouring is conducted. According to the method, the construction problem in cast-in-place pile hole forming and pouring can be well solved, and it is guaranteed that the quality of a formed cast-in-place pile can meet the design and specification requirements.

Description

technical field [0001] The invention relates to a hole-forming grouting method for a breakwater grouting pile, which belongs to the technical field of building construction technology. Background technique [0002] Cast-in-place piles can bear heavy buildings and structures, and play an important role in stabilizing the superstructure and settlement. Since the geology of the breakwater is formed by artificial land reclamation, the geological conditions are complex, and it is extremely difficult to form holes and pour cast-in-place piles on the breakwater. When the pile is built, the inside and outside of the hole are connected, affected by the tidal surge from the sea, it is difficult to form a fully closed state in the hole, and it is difficult to protect the wall with mud during the hole forming process. When the cast-in-place piles of the cross-road pipeline gallery project in Ganyu Port area are bored, especially after the impact hammer enters the second largest layer of...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above existing problems, the present invention provides a hole-forming grouting method for breakwater cast-in-place piles, which can well solve the construction problems in the hole-forming and pouring of cast-in-place piles, and ensure that the quality of cast-in-situ piles can meet the design and specification requirements after forming

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