阅读说明：本技术 新型高承载异形pccp管及制作方法 (Novel high-bearing special-shaped PCCP (prestressed concrete cylinder pipe) and manufacturing method thereof ) 是由 何文广 何通知 丁诗林 于 2018-06-11 设计创作，主要内容包括：一种新型高承载异形PCCP管及制作方法,结合管体在实际应用中的受力情况对管体几何结构进行改进设计,其管体横截面上端和底部管壁的厚度大于管体中间部位两侧管壁的厚度,底部为宽平底座,管体的环刚度、顶面承载力大为提高。其制作方法是：采用传统的PCCP管生产工艺制作管芯,在管芯外壁缠丝完成后,其外保护层采用专用模具用混凝土浇注成型。本发明节省资源生态环保,施工可开挖直埋还可以非开挖顶进,运行安全可靠,使用寿命长,特别是对输送饮水不会对水质产生污染,本发明具有良好的压力密封性且可超大口径生产,本发明管道除了可用于流体的输送还可用于城市地下管廊和海绵城市建设。(a novel high-bearing special-shaped PCCP pipe and a manufacturing method thereof are disclosed, wherein the geometric structure of the pipe body is improved and designed by combining the stress condition of the pipe body in practical application, the thicknesses of the upper end of the cross section of the pipe body and the pipe wall at the bottom are larger than those of the pipe walls at the two sides of the middle part of the pipe body, the bottom is a wide flat base, and the ring stiffness and the top surface bearing capacity of the pipe body are greatly improved. The manufacturing method comprises the following steps: the pipe core is manufactured by adopting the traditional PCCP pipe production process, and after the wire winding is finished on the outer wall of the pipe core, the outer protective layer of the pipe core is formed by adopting a special mould for concrete pouring. The invention saves resources, is ecological and environment-friendly, can be excavated and directly buried in construction, can also be jacked in a non-excavation manner, has safe and reliable operation and long service life, particularly can not pollute the water quality when conveying drinking water, has good pressure tightness, can produce with ultra-large caliber, and can be used for the construction of urban underground pipe galleries and sponge cities besides the conveyance of fluid.)

1. The utility model provides a novel high special-shaped PCCP pipe that bears and preparation method includes that body, tube bottom widen bearing foot, pipeline socket, pipeline bellmouth, pipeline socket rubber ring groove, socket shoulder, bellmouth end are along at the bottom of, its characterized in that: the thickness of the upper end of the cross section of the pipe body and the pipe wall of the bottom of the pipe body is larger than the thickness of the pipe walls of two sides of the middle part of the pipe body, the pipe bottom broadening pressure-bearing pin is positioned at the bottom of the pipe body, and the bottom surface of the pipe bottom broadening pressure-bearing pin is a plane.

2. the pipe socket of claim 1, in the form of a right circular ring at one end of the body, with the pipe socket rubber ring groove opening in the outer circumferential wall of the pipe socket.

3. The socket shoulder of claim 1 located at the socket end of the pipe.

4. A plumbing socket as claimed in claim 1 located at one end of a pipe body.

5. The socket bottom rim of claim 1 located at the bottom end of a pipe socket.

6. the novel high-bearing special-shaped PCCP pipe and the manufacturing method thereof as claimed in claim 1, characterized in that the manufacturing method is: the pipe core is manufactured by adopting the traditional PCCP pipe production process, and after the wire winding is finished on the outer wall of the pipe core, the outer protective layer of the pipe core is formed by adopting a special mould for concrete pouring.

Technical Field

The invention relates to a fluid conveying pipeline, in particular to a novel high-bearing special-shaped PCCP (prestressed concrete cylinder pipe) with higher ring stiffness, low carbon and environmental protection and a manufacturing method thereof.

Background

The pipe wall structures of the prestressed steel cylinder concrete pipes produced in the current domestic and foreign markets, namely PCCP pipes, are annular concentric circle structures, and the pipe wall of the prestressed steel cylinder concrete pipe is equally stressed in the circumferential direction under the internal pressure or the external pressure outside the weight factor of the pipe body in the aspect of bearing the characteristics of the internal pressure and the external pressure. In the practical application process of the pipeline, the actual annular stress of the pipeline wall is uneven, because in the actual laying construction of the pipeline, in order to ensure that the pipeline does not settle in the future operation, especially does not settle unevenly, people generally make a hard bottom plate at the bottom of the pipeline in the pipeline construction, and then place the pipeline on the hard bottom plate, thereby preventing the pipeline from cracking to cause fluid leakage or causing serious pipe burst accidents due to uneven settlement occurring on the pipeline foundation in the operation in the future.

However, in practical applications, the above method of disposing the hard bottom plate at the bottom of the pipeline still has disadvantages that the hard bottom plate is subjected to a point stress approximately relative to the circumferential stress of the bottom of the pipeline, the stress of the bottom of the whole pipeline is subjected to a narrow band at the center of the bottom, and the stress is concentrated on the central line of the bottom of the pipeline, so that the laid pipeline is easily subjected to an accident caused by extrusion damage of a load on the upper part of the pipeline, the light accident affects the production and life, the serious accident can cause serious damage to the environment, and the serious accident causes serious loss of lives and properties of people.

In order to avoid the accidents, people often adopt the method of tamping by filling stone soil on two sides of the central line of the bottom of the circular pipeline in actual construction, or fill the bottom with concrete to widen the bearing area of the bottom of the pipeline and improve the integral bearing capacity of the pipeline. Therefore, a fluid conveying pipeline with a bottom bearing surface capable of meeting actual requirements and high pipeline upper and lower bearing capacity and high ring stiffness is urgently needed.

In summary, in order to enhance the ring stiffness of the prestressed steel cylinder concrete pipe, i.e. the PCCP pipe, it is common to increase the pipe wall thickness and the steel content of the pipe to increase the ring stiffness of the prestressed steel cylinder concrete pipe, and some of the above construction methods are adopted in the construction. People urgently need a prestressed steel cylinder concrete pipe which saves production materials, is ecological and environment-friendly and can be conveniently installed and constructed in construction.

Disclosure of Invention

In order to meet the requirements of people on novel high-ring-stiffness pipeline materials and energy conservation and environmental protection, the geometric structure of the pipe body is optimally adjusted and designed according to the stress condition of the pipe body in practical application on the premise of guaranteeing the inconvenience of parameters such as the flow area of the original pipeline, so that the novel high-bearing special-shaped PCCP pipe and the manufacturing method thereof have the advantages of saving raw materials, energy conservation and environmental protection, convenient construction and safe operation.

The technical solution of the invention is as follows:

The utility model provides a novel high ring is to pressure-bearing dysmorphism PCCP pipe includes that body, tube bottom widen pressure foot, pipeline socket, pipeline bellmouth, pipeline socket rubber ring groove, socket shoulder, bellmouth end are along its characterized in that: the thickness of the upper end of the cross section of the pipe body and the pipe wall of the bottom of the pipe body is larger than the thickness of the pipe walls of two sides of the middle part of the pipe body, the pipe bottom broadening pressure-bearing pin is positioned at the bottom of the pipe body, and the bottom surface of the pipe bottom broadening pressure-bearing pin is a plane.

The pipeline socket is in a right circular ring shape and is positioned at one end of the pipe body, and the pipeline socket rubber ring groove is formed in the circumferential outer wall of the pipeline socket.

The socket shoulder is positioned at the tail end of the pipeline socket.

the pipeline bellmouth is positioned at one end of the pipe body.

The bottom edge of the bellmouth is positioned at the bottom end of the pipeline bellmouth.

A novel high-bearing special-shaped PCCP pipe and a manufacturing method thereof are disclosed: the production of the pipe core adopts the traditional production process of prestressed concrete cylinder pipes, namely PCCP pipes, the pipe socket rubber ring groove, the socket shoulder and the socket bottom edge are all formed by one-time casting, after the pipe core is wound on the outer wall according to the traditional production process of the PCCP pipes, the outer protective layer of the pipe core adopts a special mould, and the pipe core after the winding is placed in the mould and is formed by pouring concrete.

The invention has the beneficial effects that: the utility model provides a novel high special-shaped PCCP pipe that bears and preparation method, the atress condition and the geometric construction of pipeline body in practical application carry out optimization improvement design, guaranteed under the inconvenient prerequisite of original pipeline flow area part parameter, make the ring rigidity of body, the top surface bearing capacity has all had great improvement, make pipeline production manufacturing material very reduce, also accord with ecological environmental protection's requirement, novel high ring is to special-shaped PCCP pipe of pressure-bearing still has construction convenience, the operation is safe and reliable, long service life, especially can not produce the pollution to quality of water like other organic material tubular products or the tubular product that scribbles the organic material anticorrosive coating to the drinking water of carrying. In addition, the pipeline has the advantages of good pressure tightness, super-large-caliber production, simple and convenient production process, convenient and quick installation and construction and the like, and can be used for conveying various fluids and also can be used for constructing urban underground pipe galleries.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional structure of the present invention;

FIG. 3 is a partially enlarged structural view of the socket end of the present invention;

FIG. 4 is a schematic view of the female end structure of the present invention;

FIG. 5 is a cross-sectional view of the present invention;

Fig. 6 is a schematic view of the docking assembly of the present invention.

the symbols in the figure are as follows:

1. the pipe body 2, the pipe bottom widening pressure foot 3, the pipeline socket 4, the pipeline socket 5, the pipeline socket rubber ring groove 6, the socket shoulder 7 and the socket bottom edge

Detailed Description

The novel high-bearing special-shaped PCCP pipe comprises a pipe body 1, a pipe bottom widening pressure foot 2, a pipeline socket 3, a pipeline socket 4, a pipeline socket rubber ring groove 5, a socket shoulder 6 and a socket bottom edge. The implementation method comprises the following steps:

1. The novel high-bearing special-shaped PCCP pipe and the pipe core production method adopt the traditional production process of the prestressed steel cylinder concrete pipe, namely the PCCP pipe, and can form the pipeline socket 3, the pipeline bell mouth 4, the pipeline socket rubber ring groove 5, the socket shoulder 6 and the bell mouth bottom edge by one-step casting;

2. After the outer wall of the novel high-bearing special-shaped PCCP pipe is wound with wires according to the traditional PCCP pipe production process, an outer protective layer of the pipe core adopts a special mould, the pipe core after the wire winding is finished is placed into the mould, and concrete is poured and molded into a pipe body 1;

3. the novel high-bearing special-shaped PCCP pipe and the manufacturing method thereof are characterized in that the shape of the inner cavity of a novel high-bearing special-shaped PCCP pipe outer protective layer of a mold is consistent with the shape of a schematic cross section structure diagram shown in figure 2, the mold is used for forming a wide flat pipe body bottom at the bottom of a pipe body 1, namely a base pipe bottom widening pressure-bearing pin 2, the top forming long axis of the pipe body 1 is in an elliptic or parabolic shape above, and the thickness of the pipe walls of the upper part and the lower part of the pipe body 1 is far larger than that of the pipe walls.

4. Fig. 5 and fig. 6 are a sectional view of the novel high-hoop pressure-bearing special-shaped PCCP pipe structure and a schematic diagram of the socket connection applied in the implementation of the invention.

the wall thickness of a pipe body 1 is reasonably configured according to the actual stress of a project, the efficiency of materials is fully exerted, resources are saved, the pipe is more ecological and environment-friendly, the pipe is simple and convenient to construct, can be directly buried by digging, and can be jacked in a non-digging way. In view of the characteristics of the pipeline, the pipeline can be used for conveying fluid, can also be used for underground city pipe gallery construction and sponge city construction, and is a good construction material for city upgrading municipal construction at present.