Manufacturing method of PCC (Cast-in-Place Concrete Large-Diameter Pipe Pile) underground storage well in soft soil region

A technology of underground storage and manufacturing method is applied in the field of making underground storage wells of PCC piles in soft soil areas, which can solve the problems of lack of sealing, and achieve the effects of high construction efficiency, strong engineering practicability and fast construction speed.

Active Publication Date: 2013-03-06
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after the pile core is excavated, the bottom of the PCC pile core is still the soil layer, so it does not have sealing performance and needs further improvement

Method used

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  • Manufacturing method of PCC (Cast-in-Place Concrete Large-Diameter Pipe Pile) underground storage well in soft soil region
  • Manufacturing method of PCC (Cast-in-Place Concrete Large-Diameter Pipe Pile) underground storage well in soft soil region
  • Manufacturing method of PCC (Cast-in-Place Concrete Large-Diameter Pipe Pile) underground storage well in soft soil region

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Embodiment Construction

[0032] Such as Figure 1~Figure 4 Shown, a kind of PCC pile underground storage well manufacturing method in soft soil area, concrete steps are:

[0033] (1) The PCC pile driver is in place, and the valve pile tip is aligned with the pile position.

[0034] (2) Static pressure assisted vibrating immersed tube. At the beginning, the pile formwork can be pressed into the foundation to a certain depth with the help of mechanical self-weight. When the pile formwork is subjected to great resistance and sinking is difficult, the vibrating head is turned on, and the pile formwork is driven into the foundation design depth by means of vibrating sinking tubes.

[0035] (3) Remove the vibrating head, lower the reinforcement cage and then connect the vibrating head to the top of the pile formwork.

[0036] (4) Concrete is poured, and the pipe is pulled out by vibration to form a pile. In order to ensure the concrete strength of the pile top and its lower part, the pulling speed should...

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Abstract

The invention discloses a manufacturing method of a (Cast-in-Place Concrete Large-Diameter Pipe Pile) underground storage well in a soft soil region, which comprises the following technical steps of: constructing a PCC; curing concrete; dewatering a construction site; digging pile core soil; gouging for removing partial pile bottom concrete so that a 20-30cm reinforcing steel bar is exposed from the pile head to be used as a connecting reinforcing steel bar or punching the pile wall, and exposing a reinforcement cage; putting a bottom plate reinforcing steel bar and connecting with a pile endconnecting reinforcing steel bar or connecting with a pile wall reinforcement cage; pouring a concrete bottom plate for back sealing; manufacturing a pile head cover plate; and earthing on a cover plate to form the underground storage well. The storage well has a depth of 10-30m, an internal diameter of 1.5-4m, and a maximum capacity of reaching 370cm<3>. The movable cover plate is adopted in thestorage well and can be fixed with the pile head together, and a conveying pipeline can be arranged according to the demands. The manufacturing method has the advantages of matured technology, safety, economy, convenience for quality inspection, high construction efficiency and strong engineering practical applicability, and effective solving of the problem of the construction of the underground storage well in the soft soil region.

Description

technical field [0001] The invention belongs to the technical field of civil construction engineering, and in particular relates to a method for making an underground storage well of PCC piles in soft soil areas. Background technique [0002] Storage wells are the main structural form of underground reserves, which can store materials such as oil, natural gas, food, and fertilizers. Compared with above-ground reserves, underground reserves have the following advantages: First, it is safe and environmentally friendly, and can effectively prevent lightning strikes, terrorist attacks and earthquakes, which is conducive to the country's strategic security. At the same time, the accident rate of the underground storage is low, but once an accident occurs in the above-ground storage, the pollution will be very serious. The second is to save land. The ground facilities of the underground storage occupy only one-tenth of that of the above-ground storage, which greatly saves the oc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045E02D27/34
Inventor 刘汉龙丁选明凌九忠孔纲强
Owner HOHAI UNIV
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