Pouring method of manual digging pile body concrete by using anhydrous underwater concrete pouring method

A technology for underwater concrete and artificial digging piles, which is applied in construction, infrastructure engineering and other directions, can solve the problems of pipe lifting and backflow, low construction efficiency, poor visibility, etc., to avoid safety accidents, high construction efficiency, The effect of less construction disturbance

Inactive Publication Date: 2019-07-05
四川路桥华东建设有限责任公司
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Problems solved by technology

[0002] At present, domestic manual excavation piles are mostly poured by dry pile pouring method and clear water pile pouring method. Among them, dry pile pouring is suitable for strata with poor water retention. This method has the characteristics of good construction visibility, but its construction efficiency is low. The process changes frequently, the construction personnel work in the hole for a long time, and the safety risk is high, and the quality of the concrete pouring of the pile

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  • Pouring method of manual digging pile body concrete by using anhydrous underwater concrete pouring method
  • Pouring method of manual digging pile body concrete by using anhydrous underwater concrete pouring method

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specific Embodiment approach

[0026] Step 1: Mixing of concrete: The concrete used in the anhydrous underwater concrete pouring method has specific requirements. The concrete mix ratio should adopt the mix ratio of underwater concrete. The mix ratio of C30 concrete is: water (164kg): cement (320kg ): gravel (1047kg): sand (790kg): water reducing agent (3.6kg): fly ash (80kg). The design slump of concrete is 180~220mm;

[0027] Step 2: Concrete opening: when the first set of concrete is poured, the distance between the conduit opening and the bottom of the hole is 40~50cm, and the amount of concrete in the first set is calculated to ensure that the first set of concrete can allow the conduit to reach the required buried depth, and the concrete is continuously supplied;

[0028] Step 3: Normal pouring of concrete: The anhydrous underwater concrete pouring method mainly makes the concrete dense through the self-weight of the concrete, the downward impact of the concrete and the violent vibration of the condui...

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Abstract

The invention discloses a pouring method of manual digging pile body concrete by using an anhydrous underwater concrete pouring method. The pouring method of the manual digging pile body concrete by using the anhydrous underwater concrete pouring method is characterized in that the pouring method comprises the following steps of (1) concrete mixing, (2) start of pouring, (3) pouring deep buried control, (4) transformation between vibration-free tamping and vibration tamping and (5) pile head pouring treatment. Compared with a traditional clear water pile pouring method and a dry pile pouring method, the pouring method has the advantages that 1, compared with the traditional dry pile pouring method, the anhydrous underwater concrete pouring method does not require layered pouring and vibration tamping, the risk of artificial operation under a hole is reduced, and the pouring efficiency is improved; 2, compared with the traditional clear water pile pouring method, the anhydrous underwater concrete pouring method does not require to inject water into the hole, the influence on surrounding holes is reduced with a large permeability moraine layer, and the safety is improved; and 3, thevisibility of the anhydrous underwater concrete pouring method is good, and the quality is easy to be guaranteed.

Description

technical field [0001] The invention relates to the field of concrete pouring for pile bodies of artificially digging piles, in particular to a method suitable for pouring concrete for pile bodies of artificially digging piles in moraine layers, that is, an anhydrous underwater concrete pouring method, which is safe, efficient, and reliable in quality. control. Background technique [0002] At present, domestic manual excavation piles are mostly poured by dry pile pouring method and clear water pile pouring method. Among them, dry pile pouring is suitable for strata with poor water retention. This method has the characteristics of good construction visibility, but its construction efficiency is low. The process changes frequently, the construction personnel work in the hole for a long time, and the safety risk is high, and the quality of the concrete pouring of the pile body is greatly affected by human factors. The clear-water pile pouring method is suitable for strata wit...

Claims

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Application Information

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IPC IPC(8): E02D15/02E02D15/04
CPCE02D15/02E02D15/04
Inventor 徐国挺唐中波陈勉柏国胜伏冠西黄于锎蒋锦果罗加民
Owner 四川路桥华东建设有限责任公司
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