CN208417821U - Prestressed concrete cylinder pipe with flexible cover sheet - Google Patents

Abstract

This application involves a kind of Prestressed concrete cylinder pipe structures to improve structure more particularly to a kind of Prestressed concrete cylinder pipe with flexible cover sheet；It includes concrete supervisor；The outer end face of concrete supervisor is successively coated with adhesive layer and elastic waterproof layer from the inside to the outside.Due to implementing above-mentioned technical proposal, for the application when Prestressed concrete cylinder pipe is after the completion of production to mortar cover, surface, which is struck off, ensures surfacing without hollow；In one layer of adhesive layer of mortar cover external coating, elastic waterproof layer then is laid on surface；Both the advantage that Prestressed concrete cylinder pipe is high-intensitive, installation is simple and non-maintaining had been remained, meanwhile, the impermeability of tubing is further improved, makes tubing that there is certain flexible protective effect, meets the application demand of engineering project.

Description

Prestressed concrete cylinder pipe with flexible cover sheet

Technical field

This application involves a kind of Prestressed concrete cylinder pipe structures to improve structure, more particularly to a kind of with flexible protective The Prestressed concrete cylinder pipe of layer.

Background technique

Prestressed concrete cylinder pipe (Prestressed Concrete Cylinder Pipe, abbreviation PCCP) is state The novel pipeline material that interior last century the nineties are introduced and grow up.The pipeline is that one kind has high-intensitive, high permeability resistant With the compound tubing of high leakproofness, sheet metal, medium plate, deformed steel, high-strength prestressed steel wire, high-strength coagulation are gathered The raw and auxiliary materials such as soil, high-strength mortar and rubber seal are fabricated.The pipeline material not only combines common prestressed concrete The advantages of native water-supply-pipe and steel pipe, while being suitable for the engineering-environment of medium-large caliber, senior engineer pressure and high earthing, such as state key Engineering south water to north Beijing Section uses the Prestressed concrete cylinder pipe that diameter reaches 4000mm.

PCCP tubing is connected as design feature flexible with pipe shaft rigidity, connector, and excellent performance and price advantage make It is applied in the engineerings such as various large and medium-sized plumbing and power station, and architectural characteristic is also not necessarily limited to its rigid structure, such as in pipe When line highway crossing or building, shearing force suffered by pipe shaft is excessive and cause tubing matter when to prevent tubing from penetrating (or when being pierced by) Hidden danger is measured, this just needs PCCP not only to have rigid structure, while to have flexible outer layer structure, to offset or alleviate its institute By shearing force；But the prior art can not also solve the problems, such as this very well.

Summary of the invention

The purpose of the application is to propose one kind under the premise of original structure and constant manufacture craft, improves external soft Property, alleviate the Prestressed concrete cylinder pipe with flexible cover sheet of suffered shearing force.

The application is achieved in that the Prestressed concrete cylinder pipe with flexible cover sheet comprising concrete master Pipe；The outer end face of concrete supervisor is successively coated with adhesive layer and elastic waterproof layer from the inside to the outside.

Further, the outer end face of concrete supervisor, which is equipped with, fills up layer and surface scraping；Adhesive layer it is smooth be coated on it is mixed Solidifying soil supervisor fills up layer, outside surface scraping.

Further, it includes being responsible for axis direction along concrete that elastic waterproof layer, which includes at least two layers of coiled materials, every layer coiled material, The adjacent side correspondence of the multiple volume items to tile side by side, the adjacent volume item of same layer connects to forming seam；The seam of different layers is divided in interlocking Cloth.

Further, it includes along concrete supervisor's outer wall in spiral shell that elastic waterproof layer, which includes at least two layers of coiled materials, every layer coiled material, Multiple volume items of rotating volume paving arranged side by side, the adjacent side correspondence of the adjacent volume item of same layer connect to forming seam；Different layers are rolled up between item Seam be interspersed.

Further, elastic waterproof layer includes three-layer coil material.

Due to implementing above-mentioned technical proposal, the application is completed when Prestressed concrete cylinder pipe in production to mortar cover Afterwards, surface is struck off ensures surfacing without hollow；In one layer of adhesive layer of mortar cover external coating, then laid on surface Elastic waterproof layer；Both the advantage that Prestressed concrete cylinder pipe is high-intensitive, installation is simple and non-maintaining had been remained, meanwhile, into one Step improves the impermeability of tubing, so that tubing is had certain flexible protective effect, meets the application demand of engineering project.

Detailed description of the invention

The specific structure of the application is provided by drawings and examples below:

Fig. 1 is the overall structure diagram of the application most preferred embodiment；

Fig. 2 is the enlarged structure schematic diagram of mortar cover, adhesive layer and elastic waterproof layer；

Fig. 3 is coiled material along concrete supervisor's axis direction tile arrangement schematic diagram；

Fig. 4, which is coiled material, spreads structural schematic diagram along the volume of concrete supervisor outer wall helically formula；

Fig. 5 is the schematic cross-sectional view of elastic waterproof layer.

Legend: 1. concrete supervisor, 2. mortar covers, 3. adhesive layers, 4. elastic waterproof layers, the items of volume 401., 402. the One layer of seam, 403. second layer seams, 404. third layer seams, 5. fill up layer, 6. surface scrapings.

Specific embodiment

The application is not limited by following embodiments, can be determined according to the technical solution of the application and actual conditions specific Embodiment.

As shown in Fig. 1 to 5, the Prestressed concrete cylinder pipe with flexible cover sheet includes concrete supervisor 1；Concrete The outer end face of supervisor 1 is successively coated with adhesive layer 3 and elastic waterproof layer 4 from the inside to the outside.

When production, Prestressed concrete cylinder pipe is protected mortar using scraper after the completion of production to mortar cover 2 Layer 2 strikes off, it is ensured that surfacing is without hollow；Then tubing is hoisted to product stockyard, before carrying out flexible cover sheet's construction, sand It starches 2 water content of protective layer and is not preferably greater than 9%, and should be clean by 2 removing surface of mortar cover；In 2 external coating of mortar cover One layer of bonding agent forms adhesive layer 3, then lays elastic waterproof layer 4 on surface.Both Prestressed concrete cylinder pipe height had been remained The simple and non-maintaining advantage of intensity, installation, meanwhile, the impermeability of tubing is further improved, makes tubing that there is centainly soft Property protective effect, meets the application demand of engineering project.

The elastomer modified asphalt waterproof roll that existing public technology can be used in elastic waterproof layer 4 is made.

As shown in Fig. 2, the outer end face of concrete supervisor 1 is equipped with and fills up layer 5 and surface scraping 6；The smooth cladding of adhesive layer 3 1 is responsible in concrete, fills up layer 5, outside surface scraping 6.In order to guarantee that 2 surface of mortar cover is clean, smooth；Foreign matter can be rooted out Surface scraping 6 is formed, is smoothed out at losing fangle with cement mortar repairing, partial cells pitted skin and pit application expansive mortar to shape At filling up layer 5.Treated, and that mortar cover 2 answers is smooth, and surface must not loose, dusting peeling.

As shown in Fig. 2 to 5, elastic waterproof layer 4 includes that at least two layers of coiled materials, every layer coiled material includes being responsible for 1 axis along concrete The adjacent side correspondence of multiple volume items 401 that line direction is tiled side by side, the adjacent volume item 401 of same layer connects to forming seam；Different layers Seam is interspersed.

As shown in Fig. 2 to 5, elastic waterproof layer 4 includes that at least two layers of coiled materials, every layer coiled material includes outside concrete supervisor 1 Helically the arranged side by side of formula rolls up the multiple volume items 401 spread to wall, and the adjacent side correspondence of the adjacent volume item 401 of same layer connects to forming seam； Seam between different layers volume item 401 is interspersed.

When being laid with volume item 401, volume 401 surface of item is scraped with scraper plate in the side Bian Pu, and it is extra between adhesive layer 3 and volume item 401 to exclude Air and bonding agent keep volume item 401 sufficiently Nian Jie with mortar cover 2.When being laid with one layer of laying second layer, it is desirable that seam Position is staggered, and must not be overlapped, and is further ensured that seaming position anti-permeability performance.The thickness of elastic waterproof layer 4 answers >=10mm after laying.

As shown in Fig. 2 to 5, elastic waterproof layer 4 includes three-layer coil material.As shown in Fig. 3 to 5, whether along concrete supervisor 1 Axis tiling is still responsible for 1 outer wall along concrete and helically rolls up paving mode, first layer seam 402, second layer seam 403, third Layer seam 404 is staggered arrangement.

The above technical characteristic constitutes embodiments herein, can basis with stronger adaptability and implementation result Actual needs increases and decreases inessential technical characteristic, to meet the needs of different situations.

Claims (6)

1. a kind of Prestressed concrete cylinder pipe with flexible cover sheet, it is characterised in that: be responsible for including concrete；Concrete The outer end face of supervisor is successively coated with adhesive layer and elastic waterproof layer from the inside to the outside.

2. the Prestressed concrete cylinder pipe according to claim 1 with flexible cover sheet, it is characterised in that: concrete The outer end face of supervisor is equipped with and fills up layer and surface scraping；Adhesive layer is smooth to be coated on concrete supervisor, fills up layer, outside surface scraping Portion.

3. the Prestressed concrete cylinder pipe according to claim 1 or 2 with flexible cover sheet, it is characterised in that: bullet Property waterproof layer include at least two layers of coiled materials, every layer coiled material includes the multiple volume items to tile side by side along concrete supervisor's axis direction, The adjacent side correspondence of the adjacent volume item of same layer connects to forming seam；The seam of different layers is interspersed.

4. the Prestressed concrete cylinder pipe according to claim 1 or 2 with flexible cover sheet, it is characterised in that: bullet Property waterproof layer include at least two layers of coiled materials, every layer coiled material includes along the multiple of the concrete supervisor outer wall helically volume paving arranged side by side of formula Item is rolled up, the adjacent side correspondence of the adjacent volume item of same layer connects to forming seam；Seam between different layers volume item is interspersed.

5. the Prestressed concrete cylinder pipe according to claim 3 with flexible cover sheet, it is characterised in that: elasticity is anti- Water layer includes three-layer coil material.

6. the Prestressed concrete cylinder pipe according to claim 4 with flexible cover sheet, it is characterised in that: elasticity is anti- Water layer includes three-layer coil material.