Municipal pipeline protection structure and construction method thereof

Abstract

The invention discloses a municipal pipeline protection structure and a construction method thereof, and aims to provide a municipal pipeline protection structure which is high in structural strength, long in service life, convenient to construct and high in negative load capacity. According to the key points of the technical scheme, the pipeline wrapping body is composed of a pipeline inner support A and a pipeline inner support B in a butt joint mode in sequence, the pipeline wrapping body is integrally formed by a plastic layer wrapping the pipeline wrapping body, the pipeline supporting frame is arranged below the pipeline wrapping body, and the pipeline wrapping body is composed of the pipeline inner support A and the pipeline inner support B; and then the plastic layer is matched for an integration procedure, the support and the plastic are integrated, the bonding strength between the support and the plastic is achieved, and the plastic support is suitable for the technical field of municipal facilities.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal facilities, and more specifically, to a municipal pipeline protection structure and a construction method thereof. Background Art

[0002] With the acceleration of urbanization, urban road buildings are becoming more and more dense, and the corresponding urban underground pipelines are also increasing. During the construction of existing municipal roads, damage to underground pipelines often occurs.

[0003] The existing technology adopts the method of building a pipeline trench to protect the pipeline. After digging the soil covering the pipeline, concrete walls are built on both sides of the pipeline, and then a cover plate is placed on the pipeline.

[0004] The above-mentioned existing technical solutions have the following defects: when the above-mentioned method is used to protect the pipeline, it is necessary to build a wall, which leads to a long construction period. Later, the corresponding construction was improved. At present, the municipal pipeline protection structure and its construction method on the market, such as patent number 2020103449200, have the main design points that the pipeline is in the space formed by the arc plate and the half pipe, so it can effectively avoid the problem of squeezing the pipeline by the soil around the pipeline under the condition of driving load. At the same time, because the half pipe is rotated downward to the bottom of the pipeline, it can effectively support the pipeline. The arc plate has a good compressive effect, so the arc plate can share the vertical load on the pipeline, and then can protect the pipeline. At the same time, compared with the wall-building method, the construction period of this method is shorter.

[0005] Although it has solved the problems caused by the traditional wall-building method, this construction method also has disadvantages. For example, the curved plate structure is prefabricated, and the structural strength cannot be effectively guaranteed. In addition, the structure of breaking the ground is increased, which will also cause damage to the curved plate structure due to pressure, thus affecting its service life. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a municipal pipeline protection structure with high structural strength, long service life, convenient construction and strong load-bearing capacity.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a municipal pipeline protection structure, comprising a pipeline sheathing body formed by connecting an inner tube bracket A and an inner tube bracket B in sequence, an integrally formed plastic layer covering the pipeline sheathing body, and a pipeline support frame arranged below the pipeline sheathing body, wherein the inner tube bracket B is arranged as a first conical structure extending upward in an axial cone that matches the shape of a municipal pipeline pre-buried groove, and the area of ​​the cross-section of the upper end of the first conical structure is smaller than the area of ​​the cross-section of the lower end of the first conical structure, and the inner tube bracket A is arranged as a second conical structure or a straight cylindrical structure extending upward in an axial cone that matches the municipal pipeline pre-buried groove, the upper end of the second conical structure is consistent with the lower end of the first conical structure in size and the inclination of the two is consistent, and the upper end size of the straight cylindrical structure is consistent with the lower end size of the first conical structure.

[0008] The present invention is further configured as follows: the pipeline sheathing body includes a first frame and / or a second frame, the first frame is made of a metal material with good rubber compatibility, the second frame is made of a metal or non-metal material, an inner layer of mesh holes evenly distributed on the first frame are arranged on the surface of the first frame, and an outer layer of mesh holes evenly distributed on the second frame are arranged on the surface of the second frame, and there is an overlapping area between the inner layer of mesh holes and the outer layer of mesh holes to ensure smooth flow of rubber.

[0009] The present invention is further configured as follows: the inner mesh is configured as a three-dimensional mesh evenly distributed on the first frame, and the outer mesh is configured as a planar mesh evenly distributed on the second frame.

[0010] The present invention is further configured as follows: the inner layer mesh includes a plurality of zigzag latitudinal frames, a first warp frame sequentially connecting the wave peaks of the latitudinal frames, and a second warp frame sequentially connecting the wave troughs of the latitudinal frames; the three-dimensional mesh is surrounded by two adjacent latitudinal frames, a first warp frame, and a second warp frame; and the planar mesh is placed outside two adjacent wave peaks.

[0011] The present invention is further configured as follows: the height difference between the crest and trough of the latitudinal frame is H, the spacing between the setting position of the planar mesh and the trough of the latitudinal frame is H2, and the ratio between H2 and H is between 0.7-0.8.

[0012] A construction method applicable to the above municipal pipeline protection structure adopts a segmented construction method for construction, and the construction steps of each segment are as follows:

[0013] S1. Dig the overburden layer to form a ditch with a width of 0.5m-1m. Place the pipeline on one side of the ditch along the length of the ditch, and dig side wall steps on the two walls of the ditch. The width of the side wall steps is between 10cm-50cm.

[0014] S2. A long groove is excavated at the bottom of the ditch, and the pipeline support frame is placed in the long groove. A gap is set between the pipeline support frame and the two side walls of the ditch, and the gap is adapted to the thickness of the pipeline sheathing body;

[0015] S3, placing the pipeline on the pipeline support frame and placing the pipeline in the middle of the pipeline support frame;

[0016] S4, first placing the pipeline covering body on the side wall step, then reducing the width between the two sides of the pipeline covering body by an extrusion tool, placing it in the ditch, and forming a covering for the pipeline support frame;

[0017] S5, connecting the pipeline support frame and the two side ends of the pipeline sheathing body through a snap fit;

[0018] S7, backfill the ditch and side steps to complete the construction of this section;

[0019] S8. Repeat the above steps for the next construction stage and finally complete the pipeline protection construction.

[0020] The present invention is further configured such that: the center of the circle of the pipeline support frame, the center of the circle of the pipeline sheathing body and the axis of the pipeline are located on the same vertical line.

[0021] The present invention is further configured as follows: the pipeline support frame is a steel component, and the pipeline sheathing body is an engineering rubber component.

[0022] By adopting the above technical scheme, the beneficial effects are as follows: 1. In order to improve the structural strength of the traditional municipal pipeline protection structure, by setting its structure to include a pipeline sheathing body composed of a pipe body bracket A and a pipe body bracket B connected in sequence, an integrated plastic layer wrapped outside the pipeline sheathing body, and a pipeline support frame arranged below the pipeline sheathing body, the pipeline sheathing body is set to be composed of pipe body brackets A and B, and then the plastic layer is integrated to integrate the bracket and the plastic, thereby achieving the bonding strength between the two, changing the traditional prefabrication method, which only relies on plastic or metal or a single plastic material, and further by The bracket B in the pipe body is set as a first tapered structure extending upward in an axial tapered shape that matches the shape of the municipal pipeline pre-buried groove, and the area of ​​the cross section of the upper end of the first tapered structure is smaller than the area of ​​the cross section of the lower end of the first tapered structure. The bracket A in the pipe body is set as a second tapered structure or a straight cylindrical structure extending upward in an axial tapered shape that matches the municipal pipeline pre-buried groove. The upper end of the second tapered structure is consistent with the lower end of the first tapered structure in size and the slopes of the two are consistent. The upper end size of the straight cylindrical structure is consistent with the lower end size of the first tapered structure. The tapered structure is also a flared structure, which is conducive to the coordination of multiple pipeline protection structures, forming a relatively favorable combination effect, and greatly improving practicality;

[0023] 2. The pipeline sheath is further configured to include a first frame and / or a second frame, wherein the first frame is made of a metal material with good rubber compatibility, and the second frame is made of a metal or non-metal material. The first and second frames are mainly used to improve the bonding strength between the first and second frames, and an inner mesh evenly distributed on the first frame is provided on the surface of the first frame, and an outer mesh evenly distributed on the second frame is provided on the surface of the second frame. There is an overlapping area between the inner and outer meshes to ensure smooth flow of the rubber. The overlapping area can effectively improve the flowability of the rubber. When additional pressure is applied to the rubber, the rubber can pass through the overlapping area to improve the fluidity of the rubber, thereby improving the bonding strength between the rubber and the first and second frames, greatly improving the stability between the two, and having strong practicality and high structural strength;

[0024] 3. In order to improve the strength of the frame, the inner layer mesh is set to include a plurality of zigzag weft frames, a first warp frame sequentially connecting the wave crests of each zigzag frame, and a second warp frame sequentially connecting the wave troughs of each zigzag frame. The three-dimensional mesh is surrounded by two adjacent weft frames, the first warp frame, and the second warp frame. The zigzag structure forms troughs and crests, and the planar mesh is placed outside the two adjacent crests, so that a triangular support is formed between the planar mesh and the zigzag structure. It is important that the one-sided mesh and the zigzag structure conflict with each other, ensuring that the rubber can be combined with the triangular support area during injection molding, which greatly improves the integrity between the two and the strength is also improved;

[0025] 4. In order to ensure the combination stability between the planar mesh and the sawtooth structure, that is, to control the planar mesh in the position of the sawtooth structure, the height difference between the crest and the trough of the latitudinal frame is H, the spacing between the setting position of the planar mesh and the trough of the latitudinal frame is H2, and the spacing between the planar mesh and the trough of the latitudinal frame is H2, so that the ratio between H2 and H is between 0.48-0.68, and the planar mesh is placed in the middle position of the latitudinal frame as much as possible, so that the overall force position is centered, thereby preventing the deformation of the pipeline sheathing body when the pressure is gradually increased, improving the overall structural stability, and greatly improving the practicality;

[0026] 5. The main beneficial effect of the construction method of the present invention is that side wall steps are excavated on the two side walls of the ditch to form a step structure on the two side walls of the ditch, so that the pipeline covering body can be placed on the side wall steps first, and then the pipeline covering body is squeezed into the ditch by an extrusion tool or other auxiliary equipment. While improving the covering property, the pressure on the pipeline covering body is also reduced, avoiding the process of breaking the ground of the traditional pipeline covering body. In addition, in the present invention, the axial length of the pipeline covering body needs to be greater than the pipeline support frame. With the conical structure, each pipeline covering body can form a step-by-step covering effect, achieving a good covering effect and greatly improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of a municipal pipeline protection structure according to an embodiment of a municipal pipeline protection structure and a construction method thereof of the present invention.

[0028] Figure 2 This is a schematic diagram of the combined structure of a first frame and a second frame in an embodiment of a municipal pipeline protection structure and a construction method thereof according to the present invention.

[0029] Figure 3 The present invention is a schematic diagram of the combined structure of the inner mesh and the outer mesh of an embodiment of a municipal pipeline protection structure and a construction method thereof.

[0030] Figure 4 The present invention is a schematic diagram of a cross-sectional structure of a municipal pipeline protection structure and a construction method embodiment after landfill.

[0031] The reference numerals in the figure are: 1. pipeline sheath; 2. pipeline support frame; 10. first frame; 11. second frame; 101. inner mesh; 110. outer mesh; 120. overlapping area; 102. weft frame; 103. first warp frame; 104. second warp frame; 3. ditch; 4. side wall step; 5. long slot for placement. DETAILED DESCRIPTION

[0032] Reference Figures 1 to 4 The following is a further description of an embodiment of a municipal pipeline protection structure and a construction method thereof according to the present invention.

[0033] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0034] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0035] A municipal pipeline protection structure comprises a pipeline sheathing body 1 which is formed by connecting an inner tube support A and an inner tube support B in sequence, a plastic layer covering the outer side of the pipeline sheathing body 1 and is integrally formed, and a pipeline support frame 2 arranged below the pipeline sheathing body 1, wherein the inner tube support B is arranged as a first conical structure extending upward in an axial cone shape that matches the shape of a municipal pipeline pre-buried groove, and the area of ​​the cross section of the upper end of the first conical structure is smaller than the area of ​​the cross section of the lower end of the first conical structure, and the inner tube support A is arranged as a second conical structure or a straight cylindrical structure extending upward in an axial cone shape that matches the municipal pipeline pre-buried groove, the upper end of the second conical structure is consistent with the lower end of the first conical structure in size and the inclination of the two is consistent, and the upper end size of the straight cylindrical structure is consistent with the lower end size of the first conical structure. In order to improve the structural strength of the traditional municipal pipeline protection structure, the structure is arranged as a pipeline sheathing body 1 which is formed by connecting an inner tube support A and an inner tube support B in sequence, a plastic layer covering the outer side of the pipeline sheathing body 1 and is integrally formed, and a pipeline support frame 2 is arranged below the pipeline sheathing body 1, wherein the inner tube support B is arranged as a first conical structure extending upward in an axial cone shape that matches the shape of a municipal pipeline pre-buried groove, and the area of ​​the cross section of the upper end of the first conical structure is smaller than the area of ​​the cross section of the lower end of the first conical structure, and the inner tube support A is arranged as a second conical structure or a straight cylindrical structure extending upward in an axial cone shape that matches the municipal pipeline pre-buried groove, the upper end of the second conical structure is consistent with the lower end of the first conical structure in size and the inclination of the two is consistent, and the upper end size of the straight cylindrical structure is consistent with the lower end size of the first conical structure. The invention discloses a pipeline support frame 2 arranged below the pipeline sheathing body 1, wherein the pipeline sheathing body 1 is arranged to be composed of inner tube brackets A and B, and then an integration procedure is performed with a plastic layer to integrate the brackets and the plastic, thereby achieving the bonding strength between the two and changing the traditional prefabrication method, which only relies on plastic or metal or a single material of plastic. Furthermore, by setting the inner tube bracket B as a first cone structure extending upward in an axial cone that matches the shape of the municipal pipeline pre-buried groove, and the area of ​​the upper end cross-section of the first cone structure is smaller than the area of ​​the lower end cross-section of the first cone structure, the inner tube bracket A is arranged as a second cone structure or a straight cylindrical structure extending upward in an axial cone that matches the municipal pipeline pre-buried groove, the upper end of the second cone structure is consistent with the lower end of the first cone structure in size and the inclination of the two is consistent, the upper end size of the straight cylindrical structure is consistent with the lower end size of the first cone structure, and the cone structure is also a flared structure, which is conducive to the coordination of multiple pipeline protection structures, forming a relatively favorable combination effect, and the practicality is greatly improved.

[0036] The present invention is further configured that the pipeline sheathing body 1 includes a first frame 10 and / or a second frame 11, the first frame 10 is made of a metal material with good rubber compatibility, the second frame 11 is made of a metal or non-metal material, an inner layer mesh 101 uniformly distributed on the first frame 10 is arranged on the surface of the first frame 10, and an outer layer mesh 110 uniformly distributed on the second frame 11 is arranged on the surface of the second frame 11, and there is an overlapping area 120 between the inner layer mesh 101 and the outer layer mesh 110 to ensure smooth flow of rubber, and the pipeline sheathing body 1 is further configured to include the first frame 10 and / or the second frame 11, the first frame 10 is made of a metal material with good rubber compatibility, and the second frame 11 is made of a metal Or made of non-metallic materials, the first and second frames are mainly used to improve the bonding strength between the rubber, and an inner mesh 101 uniformly distributed on the first frame 10 is arranged on the surface of the first frame 10, and an outer mesh 110 uniformly distributed on the second frame 11 is arranged on the surface of the second frame 11. There is an overlapping area 120 between the inner mesh 101 and the outer mesh 110 to ensure the smooth flow of the rubber. The overlapping area 120 can effectively improve the fluidity of the rubber. When additional pressure is applied to it, the rubber can pass through the overlapping area 120 to improve the fluidity of the rubber, thereby improving the bonding strength between the rubber and the first and second frames, greatly improving the stability between the two, strong practicality, and high structural strength.

[0037] The present invention is further configured such that the inner mesh 101 is configured as a three-dimensional mesh evenly distributed on the first frame 10, and the outer mesh 110 is configured as a planar mesh evenly distributed on the second frame 11. In an embodiment of the present invention, the three-dimensional mesh and the planar mesh are coordinated to form an effective and moderate gap between the two, and the supporting structure formed between the two can also support each other, and the structural stability is stronger after injection molding. Moreover, the structure mainly formed by the three-dimensional mesh is a triangle shape, and the triangular structure is more stable, thereby greatly improving the stability after injection molding.

[0038] The present invention is further configured such that the inner mesh 101 includes a plurality of zigzag weft frames 102, a first warp frame 103 sequentially connecting the wave crests of each weft frame 102, and a second warp frame 104 sequentially connecting the wave troughs of each weft frame 102. The three-dimensional mesh is surrounded by two adjacent weft frames 102, the first warp frame 103, and the second warp frame 104. The planar mesh is placed outside the two adjacent wave crests. In order to improve the strength of the frame, the inner mesh 101 is configured to include a plurality of zigzag weft frames 102, a first warp frame 103 sequentially connecting the wave crests of each weft frame 102, and a second warp frame 104 sequentially connecting the wave troughs of each weft frame 102. The first warp frame 103 at the peak and the second warp frame 104 connecting the troughs of each weft frame 102 in sequence, the three-dimensional mesh is surrounded by two adjacent weft frames 102, the first warp frame 103 and the second warp frame 104, the sawtooth structure forms troughs and peaks, and the planar mesh is placed on the outside of the two adjacent peaks, so that a triangular support is formed between the planar mesh and the sawtooth structure. What is important is that the one-sided mesh and the sawtooth structure are in conflict with each other, ensuring that the rubber can be combined with the triangular support area during injection molding, which greatly improves the integrity between the two and the strength is also improved.

[0039] The present invention is further configured such that the height difference between the crest and the trough of the latitudinal frame 102 is H, the spacing between the setting position of the planar mesh and the trough of the latitudinal frame 102 is H2, and the ratio between H2 and H is between 0.7-0.8. In order to ensure the combination stability between the planar mesh and the sawtooth structure, that is, to control the planar mesh to be in the position of the sawtooth structure, the height difference between the crest and the trough of the latitudinal frame 102 is H, the spacing between the setting position of the planar mesh and the trough of the latitudinal frame 102 is H2, and the spacing between the planar mesh and the trough of the latitudinal frame 102 is H2, so that the ratio between H2 and H is between 0.48-0.68, and the planar mesh is placed in the middle position of the latitudinal frame 102 as much as possible, so that the overall force position is centered, thereby preventing the deformation of the pipeline sheathing body 1 while the pressure gradually increases, improving the overall structural stability, and greatly improving the practicality.

[0040] A construction method applicable to the above municipal pipeline protection structure adopts a segmented construction method for construction, and the construction steps of each segment are as follows:

[0041] S1. Dig the overburden layer to form a ditch 3 with a width of 0.5m-1m. Place the pipeline on one side of the ditch 3 along the length direction of the ditch 3, and dig side wall steps 4 on the two walls of the ditch 3. The width of the side wall steps 4 is between 10cm-50cm.

[0042] S2, digging a long groove 5 at the bottom of the ditch 3, placing the pipeline support frame 2 in the long groove 5, setting a gap between the pipeline support frame 2 and the two side walls of the ditch 3, and the gap is adapted to the thickness of the pipeline sheathing body 1;

[0043] S3, placing the pipeline on the pipeline support frame 2 and placing the pipeline in the middle of the pipeline support frame 2;

[0044] S4, first place the pipeline sheathing body 1 on the side wall step 4, then reduce the width between the two sides of the pipeline sheathing body 1 by an extrusion tool, place it in the ditch 3, and form a sheath for the pipeline support frame 2;

[0045] S5, connecting the two side ends of the pipeline support frame 2 and the pipeline sheathing body 1 through a snap fit;

[0046] S7, backfill the ditch 3 and the side wall step 4 to complete the construction of this section;

[0047] S8. Repeat the above steps for the next construction stage and finally complete the pipeline protection construction.

[0048] With regard to the construction method of the present invention, its main beneficial effect is that side wall steps 4 are excavated on the two side walls of the ditch 3 to form a step structure on the two side walls of the ditch 3, so that the pipeline covering body 1 can be first placed on the side wall steps 4, and then the pipeline covering body 1 is squeezed into the ditch 3 by an extrusion tool or other auxiliary equipment. While improving the covering property, the pressure on the pipeline covering body 1 is also reduced, avoiding the process of breaking the ground of the traditional pipeline covering body 1. In addition, in the present invention, the axial length of the pipeline covering body 1 needs to be greater than the pipeline support frame 2. With the conical structure, each pipeline covering body 1 can form a step-by-step covering effect, achieving a good covering effect and greatly improving stability.

[0049] The present invention is further configured such that the center of the pipeline support frame 2, the center of the pipeline sheathing body 1 and the axis of the pipeline are located on the same vertical line. The pipeline support frame 2, the pipeline sheathing body 1 and the pipeline are arranged using the above structure so that their axes are located on the same vertical line to ensure stable force.

[0050] The present invention is further configured such that the pipeline support frame 2 is a steel component, and the pipeline sheathing body 1 is an engineering rubber component. Steel components and engineering rubber components are originally more suitable for use in extreme environments. Using them in the construction of municipal pipelines can also increase the overall service life and greatly improve the practicality.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A municipal pipeline protection structure, characterized in that: The invention comprises a pipeline sheathing body (1) formed by connecting an inner tube support A and an inner tube support B in sequence, an integrally formed plastic layer covering the outer surface of the pipeline sheathing body (1), and a pipeline support frame (2) arranged below the pipeline sheathing body (1), wherein the inner tube support B is arranged as a first conical structure extending upward in an axial conical shape matching the shape of a municipal pipeline pre-buried groove, and the area of ​​the cross section of the upper end of the first conical structure is smaller than the area of ​​the cross section of the lower end of the first conical structure, and the inner tube support A is arranged as a second conical structure or a straight cylindrical structure extending upward in an axial conical shape matching the municipal pipeline pre-buried groove, the upper end of the second conical structure is consistent in size with the lower end of the first conical structure and the inclinations of the two are consistent, and the upper end of the straight cylindrical structure is consistent in size with the lower end of the first conical structure.

2. A municipal pipeline protection structure according to claim 1, characterized in that: The pipeline sheath (1) comprises a first frame (10) and / or a second frame (11); the first frame (10) is made of a metal material having good rubber compatibility, and the second frame (11) is made of a metal or non-metal material; an inner layer of mesh holes (101) uniformly distributed on the first frame (10) is arranged on the surface of the first frame (10); an outer layer of mesh holes (110) uniformly distributed on the second frame (11) is arranged on the surface of the second frame (11); and an overlapping area (120) exists between the inner layer of mesh holes (101) and the outer layer of mesh holes (110) to ensure smooth flow of rubber.

3. A municipal pipeline protection structure according to claim 2, characterized in that: The inner mesh (101) is configured as a three-dimensional mesh evenly distributed on the first frame (10), and the outer mesh (110) is configured as a planar mesh evenly distributed on the second frame (11).

4. A municipal pipeline protection structure according to claim 3, characterized in that: The inner layer mesh (101) comprises a plurality of zigzag-shaped weft frames (102), a first warp frame (103) sequentially connecting the wave crests of each weft frame (102), and a second warp frame (104) sequentially connecting the wave troughs of each weft frame (102); the three-dimensional mesh is surrounded by two adjacent weft frames (102), the first warp frame (103), and the second warp frame (104); and the planar mesh is placed outside two adjacent wave crests.

5. A municipal pipeline protection structure according to claim 4, characterized in that: The height difference between the wave crest and the wave trough of the latitudinal frame (102) is H, the spacing between the setting position of the planar mesh and the wave trough of the latitudinal frame (102) is H2, and the ratio between H2 and H is between 0.7 and 0.

8.

6. A construction method applicable to the municipal pipeline protection structure described in claims 1 to 5, characterized in that: The construction is carried out in sections, and the construction steps for each section are as follows: S1. Dig the overburden layer to form a ditch (3) with a width of 0.5m-1m, place the pipeline on one side of the ditch (3) along the length direction of the ditch (3), and dig side wall steps (4) on the two walls of the ditch (3), and the width of the side wall steps (4) is between 10cm and 50cm; S2, digging a long groove (5) at the bottom of the ditch (3), placing the pipeline support frame (2) in the long groove (5), setting a gap between the pipeline support frame (2) and the two side walls of the ditch (3), and the gap is adapted to the thickness of the pipeline sheathing body (1); S3, placing the pipeline on the pipeline support frame (2) and placing the pipeline in the middle of the pipeline support frame (2); S4, first placing the pipeline sheathing body (1) on the side wall step (4), then reducing the width between the two sides of the pipeline sheathing body (1) by an extrusion tool, placing it in the ditch (3), and forming a sheath for the pipeline support frame (2); S5, connecting the two side ends of the pipeline support frame (2) and the pipeline sheathing body (1) through a snap-fit ​​device; S7, backfilling the ditch (3) and the side wall steps (4) to complete the construction of this section; S8. Repeat the above steps for the next construction stage and finally complete the pipeline protection construction.

7. The construction method of a municipal pipeline protection structure according to claim 1 is characterized in that: The center of the circle of the pipeline support frame (2), the center of the circle of the pipeline covering body (1) and the axis of the pipeline are located on the same vertical line.

8. The construction method of a municipal pipeline protection structure according to claim 1 is characterized by: The pipeline support frame (2) is a steel component, and the pipeline sheathing body (1) is an engineering rubber component.

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