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Construction method of an underground special-shaped pool

A construction method and pool technology, applied in water conservancy projects, excavation, artificial islands, etc., can solve problems such as time-consuming and laborious, poor construction environment, impact on life and production, improve work efficiency, reduce underground construction time, convenient and practical operation Effect

Active Publication Date: 2020-12-22
平湖市开元混凝土股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned invention can improve the construction progress to a certain extent and reduce the construction cost of the enclosure structure, but generally speaking, it takes at least 15 days of construction time in the foundation pit, and in general, the earthwork will generally be completed after 3-4 days of excavation. Landslides or serious landslides occur during the day, so it takes a lot of manpower and material resources to take safety protection measures around the foundation pit or slope protection, which is time-consuming and labor-intensive, and the construction environment of the project is poor, and it has no impact on the normal life and production around. will have a certain impact

Method used

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  • Construction method of an underground special-shaped pool
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Examples

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Effect test

Embodiment 1

[0044] A construction method for an underground special-shaped pool, such as figure 1 shown, including the following steps:

[0045] a. Production of steel plate inner mold: First, according to the construction needs, a barrel-shaped steel plate inner mold with only an upper end opening is made on the flat ground or in the factory workshop by lap welding or full welding. The barrel-shaped steel plate inner mold can be used to hold For water or other liquids, compared with the previous pouring of concrete pool structures in foundation pits, the construction difficulty coefficient is significantly reduced, and the actual construction time in foundation pits is greatly shortened, thereby improving construction efficiency and improving construction conditions.

[0046] Then, according to the different materials in the special-shaped pool, the inner and outer surfaces of the inner mold of the steel plate are subjected to anti-corrosion treatment. Layer arc spraying anti-corrosion ...

Embodiment 2

[0055] A construction method for an underground special-shaped pool, such as figure 2 As shown, the difference from Example 1 is that when backfilling in step f, the general soil collapse or severe landslide will occur about 3-4 days after the excavation of the earth, and the operator can also lightly press the inner mold around its steel plate. Sprinkling a layer of sand and gravel mixture on the ground can reduce the probability of soil collapse and improve the safety of underground pool construction. In addition, when using sand and gravel mixture for backfilling, the operator needs to go through 7-10 days of maintenance before filling. Drain the water in the gravel, and use a tamping machine to tamp the gravel until it is flush with the opening at the upper end of the inner mold of the steel plate.

[0056] When binding steel bars and pouring concrete in step g, tie steel bars at the top edge of the steel plate inner formwork, erect a concrete cover plate with reserved ho...

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Abstract

The invention discloses a construction method of an underground shaped pool. The construction method comprises the steps of manufacturing of a steel plate internal mould, foundation marking and location, earth excavation, pit bottom pretreatment, concrete pouring, installation and location of the steel plate internal mould, backfilling, concrete pouring, wire-tie and concrete pouring. The construction method of the underground shaped pool has the advantages of easy operation, high practicability, and fast and efficient construction, the underground construction time can be reduced; the influence of earthwork caving and ponding in the underground construction on production and life is relieved effectively, and the whole engineering construction from the manufacturing of the steel plate internal mould to completion of the concrete pouring needs 2-3 days only, and the construction period is shortened by 12-13 days compared with the previous methods; the construction period is shortened, and the working efficiency is improved; the construction cost is saved.

Description

technical field [0001] The invention belongs to the technical field of underground construction engineering, and more specifically relates to a construction method of an underground special-shaped pool. Background technique [0002] At present, the underground storage tank project is an important part of the project. Its construction quality control is difficult, and accidents such as quality defects, landslides, and water accumulation are prone to occur. In addition, the underground construction time of the project is long, the construction environment is poor, and it is easily affected by the weather. . [0003] The Chinese invention patent application with the publication number CN102305801A discloses a suspended semi-inverted construction method for an underground circular pool, which includes the following steps: setting surrounding protection piles along the circumference of the pool, excavating the earth, making the upper structure of the circular pool, and simultaneo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045E02D17/00E04H7/18
CPCE02D17/00E02D29/045E04H7/18
Inventor 胡国华
Owner 平湖市开元混凝土股份有限公司
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