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Prefabrication and installation construction method of slot-type drainage ditch based on pvc pipe-lined airbag mandrel

A PVC pipe, prefabricated installation technology, applied in water supply installations, waterway systems, sewer pipe systems, etc., can solve the problems of high exhaust requirements, increased construction difficulty, easy separation, etc., to achieve high construction quality and construction cost. Low, reusable effects

Active Publication Date: 2021-05-25
广东德泽建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although it solves the problems of mold expansion and grout leakage through prefabrication, it divides the drainage ditch into multiple sections and pours them separately, and finally joins them together. During the construction process, the flatness of the excavated trench and the slope of the side formwork, etc. The requirements are high, the construction is difficult, and the integrity of the combination is poor. It is easy to separate on the road surface that is often subject to vibration, such as the side of the road; and if the integral pouring is used on the basis, the mold and grouting will be exhausted. The requirements are high, and the formwork removal is difficult, which will also increase the difficulty of construction

Method used

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  • Prefabrication and installation construction method of slot-type drainage ditch based on pvc pipe-lined airbag mandrel
  • Prefabrication and installation construction method of slot-type drainage ditch based on pvc pipe-lined airbag mandrel
  • Prefabrication and installation construction method of slot-type drainage ditch based on pvc pipe-lined airbag mandrel

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Embodiment 1

[0044] Embodiment 1, with reference to figure 1 , is a kind of prefabrication and installation construction method based on PVC pipe 2 inner sleeve airbag mandrel 10 slit type drainage ditch disclosed by the present invention, comprises the following steps:

[0045] Step S1 Drain prefabrication:

[0046] Step S1.1 making of reinforcement cage 4, refer to figure 2 When processing steel bars, the material should be cut according to the size required by the design. When the steel bars are bound and installed, they should be constructed according to the design drawings and construction specifications. Note that the specifications, sizes, and spacing of the steel bars must meet the requirements, and the thickness of the net protective layer of the main bars should be controlled according to the design requirements. The length and fullness of the steel bar weld should meet the requirements of the specification;

[0047] Step S1.2 Fabrication and installation of prefabricated mold...

Embodiment 2

[0058] Embodiment 2, with reference to Figure 4 with Figure 5 , the difference from Example 1 is that the structure of the prefabricated mold 1 is different from the corresponding construction method,

[0059] The prefabricated mold 1 comprises a bottom mold 11, a side mold 12 and an end mold 13 which are mutually surrounded into a cube, and the bottom mold 11 and the side mold 12 are all hingedly connected to the bottom mold 11; The bottom surfaces are all in contact with the surface of the bottom mold 11, and the inner surface of the side mold 12 is in contact with the side end surface of the end mold 13; The two ends are embedded in the first inner template 15 of the step and pressed by the side mold 12, and the inner side of the bottom mold 11 is provided with a second inner template 16 that is pressed by the first inner template 15 and the end mold 13 respectively; The surfaces of the inner formwork 15 and the second inner formwork 16 are both provided with a pluralit...

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Abstract

The invention relates to a method for prefabricating and installing a slotted drainage ditch based on an airbag core mold in a PVC pipe. Die holes are reserved at both ends; the mandrel includes a PVC pipe and a rubber airbag, and one side of the PVC pipe is provided with a gap extending in the axial direction; when assembling, first put the steel cage into the cavity, and plug the rubber airbag The PVC pipe passes through the steel cage, and the two ends of the PVC pipe correspond to the mold holes, and the PVC pipe is inflated into the air bag to tension the PVC pipe; after that, concrete is poured into the prefabricated mold, and the formwork is removed and maintained after the prefabricated component reaches a certain strength; S2 ditch The trenches are excavated and leveled; S3 installs the prefabricated drains into the trenches and seals them, and then backfills the trenches. The invention has the advantages of high reusability, low construction cost, beautiful finished prefabricated components and high construction quality.

Description

technical field [0001] The invention relates to the technical field of drainage ditch construction, in particular to a prefabricated installation construction method of a slot-type drainage ditch based on an airbag mandrel in a PVC pipe. Background technique [0002] As an indispensable structure on the construction site, the drainage ditch usually adopts the cast-in-place mode. When constructing the traditional cast-in-place drainage ditch, it often needs to go through multiple processes such as formwork and concrete pouring, which is labor-intensive and time-consuming. The construction quality of the drainage ditch cannot be effectively guaranteed. The cast-in-place drainage ditch after maintenance has many defects, and even problems such as mold swelling and slurry leakage, which seriously affect the service life of the drainage ditch. [0003] The Chinese patent with authorized notification number CN110792148A discloses a reinforced concrete prefabricated drainage ditch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F3/04E03F3/06
CPCE03F3/04E03F3/046E03F3/06
Inventor 林毅飞黄永强韦永坚
Owner 广东德泽建设工程有限公司
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