A modular prefabricated assembly pipeline, processing mold and construction method

Abstract

The present invention discloses a modular prefabricated assembly type pipeline, a processing mold and a construction method, wherein the modular prefabricated assembly type pipeline comprises a combination module, a connection component and a secondary casting module. Compared with the prior art, the present invention adopts a split assembly structure, which can realize prefabrication, modularization and standardized production, shorten the construction period, reduce costs and improve construction quality.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline laying, and in particular to a modular prefabricated assembled pipeline, a processing mold and a construction method. Background Art

[0002] With the progress of society and the development of the times, innovation, efficiency, quality, environmental protection and safety are becoming more and more important. At present, the demand for upgrading and optimizing municipal departments and power distribution facilities is increasing, but in the face of the problem of tight construction time for project engineering, the traditional on-site construction method of making pipe trenches is cumbersome and the construction period is obviously unable to meet the demand.

[0003] The existing power trench production is basically on-site production, and the main contents are on-site trench excavation-bed pouring-pipeline laying-rebar binding-formwork support-concrete pouring-concrete maintenance-formwork removal-earth backfilling. The length of the construction period is mainly reflected in the process from steel bar binding to formwork removal. In this process, a lot of manpower is consumed and the work efficiency is low; this process is also a critical period that affects the quality of the pipeline. If the on-site pouring and vibration are not solid, the concrete is prone to honeycomb, which directly affects the quality of the project. In addition, the environment and space at many construction sites are relatively tight, and large cranes cannot hoist the prefabricated foundation into place for installation. Summary of the invention

[0004] The purpose of the present invention is to provide a modular prefabricated assembly pipe, a processing mold and a construction method, which are used to solve the technical problems existing in the above-mentioned prior art, shorten the construction period, reduce costs and improve product quality.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention discloses a modular prefabricated pipeline, comprising:

[0007] A combination module, wherein the combination module comprises a plurality of modules arranged in sequence from top to bottom, the module comprises a steel mesh frame and a concrete block cast on the steel mesh frame, both ends of the longitudinal bars of the steel mesh frame extend out of the concrete block, contact surfaces of two adjacent modules are provided with longitudinally extending semicircular holes, the semicircular holes are opposite to each other and form a plurality of circular holes, both lateral sides of the module are provided with connecting screw fixing grooves, the contact surfaces of two adjacent modules are limited by the embedded cooperation of the male positioning groove and the female positioning groove, the adjacent ends of the longitudinal bars of two adjacent combination modules are tied and connected, and each combination module is fixed as a whole by welding two adjacent steel mesh frames above and below and / or by locking the connection assembly;

[0008] The connection assembly includes a connection screw extending in the up-down direction and a plurality of nuts respectively threadedly connected to both ends of the connection screw, the connection screw passes through the side wall of the connection screw fixing groove in the up-down direction, and the plurality of nuts are respectively located in the connection screw fixing groove of the module on the top layer and the connection screw fixing groove of the module on the bottom layer;

[0009] The secondary casting module is a concrete block cast between two adjacent combination modules, and the proximal ends of the longitudinal reinforcements of the two adjacent combination modules are buried in the secondary formwork casting module.

[0010] Preferably, each of the combined modules includes at least three modules, including a top-layer module, a plurality of middle-layer modules and a bottom-layer module.

[0011] Preferably, the top module is provided with optical fiber circular tube holes in the longitudinal direction.

[0012] Preferably, a groove is provided on the lower surface of the top-layer module, a protrusion is provided on the upper surface of the middle-layer module, a groove is provided on the lower surface of the middle-layer module, and a protrusion is provided on the upper surface of the bottom-layer module. The protrusions and grooves on the contact surfaces of two adjacent modules are positioned opposite each other and are limited by embedded fit.

[0013] Preferably, the steel mesh includes embedded iron sheets and mutually perpendicular longitudinal bars, transverse bars and vertical bars, the vertical bars extend in the up-down direction, and the same number of embedded iron sheets that are positioned opposite to each other are respectively welded and fixed to the lower end of the vertical bars of the top module, the upper end of the vertical bars of the middle module, the lower end of the vertical bars of the middle module and the upper end of the vertical bars of the bottom module, the embedded iron sheets include a fixedly connected horizontal portion and a bent portion, the embedded iron sheets are wrapped around the bottom edge of the module, and the embedded iron sheets of the upper and lower adjacent steel meshes are welded and connected, so that the multiple steel meshes of the combined module form a whole.

[0014] The present invention also discloses a processing mold for modular prefabricated assembled pipes, including a top mold for processing a top module, a middle mold for processing a middle module, a bottom mold for processing a bottom module, and a secondary vertical mold casting mold for processing a secondary casting module. The lower part of the top mold, the upper part of the middle mold, the lower part of the middle mold, and the upper part of the bottom mold are all provided with semicircular annular concave surfaces that are positioned opposite and extend longitudinally. The lower part of the top mold is provided with a female positioning groove, and the lateral sides of the top mold are respectively provided with connecting screw fixing mold grooves, and the upper part of the middle mold is provided with a public fixing Positioning grooves, a female positioning groove is provided at the lower part of the middle-layer mold, and connecting screw fixing mold grooves are respectively provided on the lateral sides of the middle-layer mold, a male positioning groove is provided at the upper part of the bottom-layer mold, and connecting screw fixing mold grooves are respectively provided on the lateral sides of the bottom-layer mold, and through holes for longitudinal reinforcement to pass through are provided at both longitudinal ends of the top-layer mold, the middle-layer mold and the bottom-layer mold. After the top-layer module, the middle-layer module and the bottom-layer module are combined into a combined module, the two lateral openings of the gap between the two combined modules are respectively used to erect one of the secondary mold casting molds and cast in the middle to form a secondary casting module.

[0015] Preferably, the top layer mold comprises a top layer upper mold, a top layer lower mold, a top layer side mold, a top layer bottom mold, a top layer right-angle fixing piece, an optical fiber round tube mold fixing piece and an optical fiber round tube mold. One top layer upper mold, one top layer lower mold, two top layer side molds facing each other and two top layer bottom molds facing each other are detachably connected to form a rectangular parallelepiped mold by fasteners. The top layer right-angle fixing piece is a U-shaped structure. Each of the two short sides of the top layer bottom mold is detachably fixed to one top layer right-angle fixing piece by fasteners. The top layer right-angle fixing piece is simultaneously detachably fixedly connected to the adjacent top layer bottom mold, the top layer upper mold, the top layer lower mold and the top layer side mold by fasteners. The optical fiber round tube mold is fixed on the optical fiber round tube mold fixing piece. The two ends of the optical fiber round tube mold fixing piece are detachably fixed to the top layer upper mold and the top layer lower mold by fasteners respectively. The optical fiber round tube mold extends longitudinally and passes through the top layer mold. The top layer lower mold is provided with the female positioning groove, and the top layer side mold is provided with the connecting screw fixing mold groove.

[0016] Preferably, the middle-layer mold includes a middle-layer upper mold, a middle-layer lower mold, a middle-layer side mold, a middle-layer bottom mold, a middle-layer right-angle fixing piece and a middle-layer limiting fixing piece. One middle-layer upper mold, one middle-layer lower mold, two middle-layer side molds facing each other, and two middle-layer bottom molds facing each other are detachably connected to form a rectangular mold through fasteners. The middle-layer right-angle fixing piece is a U-shaped structure. Each of the two short sides of the middle-layer bottom mold is detachably fixed with a middle-layer right-angle fixing piece through fasteners. The middle-layer right-angle fixing piece is simultaneously detachably fixedly connected with the adjacent middle-layer bottom mold, the middle-layer upper mold, the middle-layer lower mold and the middle-layer side mold through fasteners. The two ends of the middle-layer limiting fixing piece are detachably fixed to the middle-layer upper mold and the middle-layer lower mold respectively through fasteners. The middle-layer lower mold is provided with the female positioning groove, the middle-layer upper mold is provided with the male positioning groove, and the middle-layer side mold is provided with the connecting screw fixing mold groove.

[0017] Preferably, the bottom mold includes a bottom upper mold, a bottom lower mold, a bottom side mold, a bottom bottom mold, a bottom right-angle fixing piece and a bottom limiting fixing piece. One bottom upper mold, one bottom lower mold, two bottom side molds facing each other, and two bottom bottom molds facing each other are detachably connected to form a rectangular mold through fasteners. The bottom right-angle fixing piece is a U-shaped structure. Each of the two short sides of the bottom mold is detachably fixed with one bottom right-angle fixing piece through fasteners. The bottom right-angle fixing piece is simultaneously detachably fixedly connected to the adjacent bottom bottom mold, the bottom upper mold, the bottom lower mold and the bottom side mold through fasteners. The two ends of the bottom limiting fixing piece are detachably fixed to the bottom upper mold and the bottom lower mold through fasteners respectively. The bottom upper mold is provided with the public positioning groove, and the bottom side mold is provided with the connecting screw fixing mold groove.

[0018] The present invention also discloses a construction method of a modular prefabricated assembled pipeline, comprising the following steps:

[0019] S1, prefabricating reinforced concrete modules through molds;

[0020] S2, laying one layer of modules at intervals along the extension direction of the excavation line;

[0021] S3. Lay a layer of pipes above the module so that the pipes are embedded in the semicircular holes on the module;

[0022] S4, looping through step S2 and step S3 until the topmost module is laid, during which the upper and lower modules are limited by the embedded cooperation of the male positioning groove and the female positioning groove on the module;

[0023] S5, fixing a group of modules at the same position into a combined module by connecting components;

[0024] S6, tying and connecting the adjacent ends of the longitudinal reinforcements of two adjacent combined modules, erecting a secondary vertical casting mold at each of the two horizontal openings of the gap between the two combined modules, and casting between the two secondary vertical casting molds to form a secondary casting module;

[0025] S7. After the maintenance of the secondary casting module is completed, the secondary vertical casting mold is removed and the excavated line is filled.

[0026] Compared with the prior art, the present invention has achieved the following technical effects:

[0027] The combined module of the present invention adopts a split assembly structure, and each module can be prefabricated at the beginning of trench excavation or before excavation, and then a plurality of complete pipe holes can be formed by assembly, thereby realizing prefabrication, modularization and standardized production; the present invention only needs a small excavator to realize the rapid lifting of each layer of modules, which is convenient for construction and greatly shortens the construction period; since each module is prefabricated, there will be no pipe breakage caused by inadequate on-site pouring and vibration, thereby improving the construction quality; after assembling each module through the connecting component, a certain angle can be formed between two adjacent combined modules according to the actual bending condition of the trench, and the adjacent two sections of the pipeline are connected by tying the proximal end of the longitudinal reinforcement and connecting them through the PVC connecting sleeve, and the gap between the two adjacent combined modules is filled with the secondary casting module, so that the pipeline can be laid in an S-shaped path, and the flexural property of the PVC pipe and the space reserved between the two combined modules can be used to realize quick and convenient connection and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of casting a secondary mold casting module when two adjacent combined modules are in line;

[0030] Figure 2 It is a structural schematic diagram of the modular prefabricated assembled pipeline of this embodiment when two adjacent combined modules form an angle with each other;

[0031] Figure 3 A diagram showing a perspective of the top-level module

[0032] Figure 4 A diagram showing another perspective of the top-level module

[0033] Figure 5 for Figure 3 A partial enlarged view of the middle A;

[0034] Figure 6 for Figure 3 A partial enlarged view of point B in the middle;

[0035] Figure 7 for Figure 3 A partial enlarged view of point C in the middle;

[0036] Figure 8 A diagram showing a perspective of the middle-level module

[0037] Fig. 9 A diagram showing another perspective of the middle-level module

[0038] Fig.10 for Fig. 9 A partial enlarged view of the middle A;

[0039] Fig.11 for Figure 8 A partial enlarged view of point B in the middle;

[0040] Fig.12 for Figure 8 A partial enlarged view of point C in the middle;

[0041] Fig.13 for Fig. 9 A partial enlarged view of point D in the middle;

[0042] Fig.14 A diagram showing a perspective of the underlying modules

[0043] Fig.15 A diagram showing another perspective of the underlying module

[0044] Fig.16 for Fig.15 A partial enlarged view of the middle A;

[0045] Fig.17 for Fig.14 A partial enlarged view of point B in the middle;

[0046] Fig.18 for Fig.15 A partial enlarged view of point C in the middle;

[0047] Fig.19 A schematic diagram showing one perspective of the top mold;

[0048] Fig. 20 This is a schematic diagram of the top mold after flipping;

[0049] Fig.21 for Fig.19A partial enlarged view of the middle A;

[0050] Fig. 22 for Fig.19 A partial enlarged view of point B in the middle;

[0051] Fig.23 A schematic diagram showing a perspective of the middle-layer mold;

[0052] Fig.24 This is a schematic diagram of the middle layer mold after flipping;

[0053] Fig.25 for Fig.23 A partial enlarged view of the middle A;

[0054] Fig.26 for Fig.24 A partial enlarged view of point B in the middle;

[0055] Fig. 27 for Fig.23 A partial enlarged view of point C in the middle;

[0056] Fig.28 A schematic diagram showing one perspective of the bottom mold;

[0057] Fig.29 This is a schematic diagram of the bottom mold after flipping;

[0058] Fig.30 for Fig.28 A partial enlarged view of the middle A;

[0059] Fig.31 for Fig.29 A partial enlarged view of point B in the middle;

[0060] Fig.32 This is a schematic diagram of the steel mesh in the top module;

[0061] Fig.33 This is a schematic diagram of the steel mesh in the middle module;

[0062] Fig.34 This is a schematic diagram of the steel mesh in the bottom module;

[0063] Fig.35 This is a schematic diagram of the construction process;

[0064] Explanation of the reference numerals: 11-top layer upper mold; 12-top layer lower mold; 13-top layer side mold; 14-top layer bottom mold; 15-top layer right-angle fixing piece; 16-optical fiber round tube mold fixing piece; 17-optical fiber round tube mold; 21-middle layer upper mold; 22-middle layer lower mold; 23-middle layer side mold; 24-middle layer bottom mold; 25-middle layer right-angle fixing piece; 26-middle layer limiting fixing piece; 31-bottom layer upper mold; 32-bottom layer lower mold; 33-bottom layer side mold; 34-bottom layer bottom mold; 35-bottom layer right-angle fixing piece; 36-bottom layer limiting fixing piece; 41 secondary vertical mold casting mold. DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] The purpose of the present invention is to provide a modular prefabricated assembly pipe, a processing mold and a construction method, which are used to solve the technical problems existing in the above-mentioned prior art, shorten the construction period, reduce costs and improve product quality.

[0067] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0068] like Figures 1 to 18 and Figures 32-34 As shown, this embodiment provides a modular prefabricated assembled pipeline, including a combination module, a connection component and a secondary casting module.

[0069] Among them, the combined module includes a plurality of modules arranged in sequence from top to bottom, and the module includes a steel mesh and a concrete block cast on the steel mesh. The longitudinal bars of the steel mesh extend out of the concrete block at both ends, and the extension length is preferably 15 cm. The contact surface of two adjacent modules is provided with longitudinally extending semicircular holes, which are opposite to each other and form a plurality of circular holes, and the circular holes are used to lay pipelines. For the number of layers of circular holes and the number of circular holes per layer, those skilled in the art can select according to actual needs. In this embodiment, the circular holes are at least one layer, that is, the module is at least two layers. The laid pipeline can be a power pipeline, or other pipelines such as a communication pipeline. Both lateral sides of the module are provided with connecting screw fixing grooves, and the contact surfaces of the two adjacent modules are limited by the embedded cooperation of the male positioning groove and the female positioning groove, and the adjacent ends of the longitudinal bars of the two adjacent combined modules are tied and connected by connecting pieces such as stirrups. Each combined module is fixed as a whole by welding two adjacent steel meshes above and below and / or by locking the connecting assembly. The connection assembly includes a connection screw extending in the up-down direction and a plurality of nuts respectively threadedly connected to the two ends of the connection screw, the connection screw is preferably an M12 long screw, the connection screw passes through the side wall of the connection screw fixing groove in the up-down direction, and the plurality of nuts are respectively located in the connection screw fixing groove of the top module and the connection screw fixing groove of the bottom module. The secondary casting module is a concrete block cast between two adjacent combination modules, and the proximal ends of the longitudinal reinforcements of the two adjacent combination modules are buried in the secondary mold casting module.

[0070] The modular prefabricated assembled pipeline combination module adopts a split assembly structure, and each module can be prefabricated at the beginning of trench excavation or before excavation, and then a plurality of complete pipe holes can be formed by assembly, thereby realizing prefabrication, modularization and standardized production; the on-site installation of the modular prefabricated assembled pipeline is relatively simple, and only a small excavator is needed to realize the rapid lifting of each layer of modules, which is convenient for construction and greatly shortens the construction period; since each module is prefabricated, there will be no pipe breakage caused by inadequate on-site pouring and vibration, thereby improving the construction quality; after assembling each module through the connecting component, a certain angle can be formed between two adjacent combination modules according to the actual bending of the trench, and the adjacent two sections of the pipeline are connected by tying the near end of the longitudinal reinforcement and connecting the adjacent two sections of the pipeline through the PVC connecting sleeve, and the gap between the two adjacent combination modules is filled with the secondary casting module, so that the pipeline can be laid in an S-shaped path, and the flexural property of the PVC pipe and the space reserved between the two combination modules can be used to realize quick and convenient connection and installation.

[0071] In the specific construction process, the specific number, longitudinal length, and transverse length of each combined module can be selected by those skilled in the art according to the actual situation. In this embodiment, each combined module includes at least three modules, including a top module, a plurality of middle modules, and a bottom module. The bottom surface of the top module is provided with a groove, the upper surface of the middle module is provided with a protrusion, the bottom surface of the middle module is provided with a groove, and the upper surface of the bottom module is provided with a protrusion. The protrusions and grooves on the contact surfaces of two adjacent modules are positioned opposite to each other and are limited by embedded fit.

[0072] In order to improve the structural strength of the combined module, in addition to limiting the position of two adjacent modules by embedded matching, this embodiment also uses welding to connect the steel mesh of each module into a whole. In this embodiment, the steel mesh includes embedded iron sheets and mutually perpendicular longitudinal bars, transverse bars, and vertical bars, and the vertical bars extend in the up and down directions. The same number of embedded iron sheets and the positions facing each other are respectively welded and fixed to the lower end of the vertical bars of the top module, the upper end of the vertical bars of the middle module, the lower end of the vertical bars of the middle module, and the upper end of the vertical bars of the bottom module. The embedded iron sheet includes a horizontal portion and a bending portion that are fixedly connected, and the embedded iron sheet is covered at the bottom edge of the module to facilitate subsequent welding operations. The embedded iron sheets of the upper and lower adjacent steel meshes are welded and connected, so that the multiple steel meshes of the combined module form a whole.

[0073] In order to simultaneously realize the laying of optical fiber pipelines, optical fiber circular tube holes are further provided in the longitudinal direction on the top module of this embodiment.

[0074] like Figure 19-31 As shown, the present embodiment also provides a processing mold for modular prefabricated assembled pipes, which is used to process and form the above-mentioned modular prefabricated assembled pipes, including a top mold for processing a top module, a middle mold for processing a middle module, a bottom mold for processing a bottom module, and a secondary vertical mold casting mold 41 for processing a secondary casting module.

[0075] The lower part of the top mold, the upper part of the middle mold, the lower part of the middle mold and the upper part of the bottom mold are all provided with semicircular annular concave surfaces that are positioned opposite and extend longitudinally. The semicircular annular concave surfaces are used to form semicircular holes that extend longitudinally when pouring concrete. The two semicircular holes are opposite to each other to form a circular hole for the pipeline to pass through. The lower part of the top mold is provided with a female positioning groove, and the two lateral sides of the top mold are respectively provided with grooves for fixing the mold with connecting screws. The upper part of the middle mold is provided with a male positioning groove, the lower part of the middle mold is provided with a female positioning groove, and the two lateral sides of the middle mold are respectively provided with grooves for fixing the mold with connecting screws. The upper part of the bottom mold is provided with a male positioning groove, and the two lateral sides of the bottom mold are respectively provided with grooves for fixing the mold with connecting screws. Through holes for the longitudinal reinforcement to pass through are provided at both longitudinal ends of the top mold, the middle mold and the bottom mold, so that after pouring, both ends of the longitudinal reinforcement extend out of the concrete block. After the top module, the middle module and the bottom module are combined into a combined module, the two horizontal openings of the gap between the two combined modules are used to erect a secondary mold casting mold 41 and cast in the middle to form a secondary casting module. When two adjacent combined modules form a certain angle, the lengths of the two secondary mold casting molds 41 are different. When two adjacent combined modules are collinear, the lengths of the two secondary mold casting molds 41 are the same.

[0076] Specifically, in this embodiment, the top mold includes a top upper mold 11, a top lower mold 12, a top side mold 13, a top bottom mold 14, a top right-angle fixing piece 15, an optical fiber round tube mold fixing piece, an optical fiber round tube mold fixing piece 16, and an optical fiber round tube mold 17. A top upper mold 11, a top lower mold 12, two top side molds 13 facing each other, and two top bottom molds 14 facing each other are detachably connected to form a rectangular parallelepiped mold through fasteners. The top right-angle fixing piece 15 is a U-shaped structure, and each of the two short sides of the top bottom mold 14 is detachably fixed with a top right-angle fixing piece 15 through fasteners. The top right-angle fixing piece 15 is also detachably fixedly connected with the adjacent top bottom mold 14, the top upper mold 11, the top lower mold 12, and the top side mold 13 through fasteners. The optical fiber round tube mold 17 is fixed on the optical fiber round tube mold fixing part 16. The two ends of the optical fiber round tube mold fixing part 16 are detachably fixed to the top-layer upper mold 11 and the top-layer lower mold 12 by fasteners. The optical fiber round tube mold 17 extends longitudinally and penetrates the top-layer mold. The top-layer lower mold 12 is provided with a female positioning groove, and the top-layer side mold 13 is provided with a connecting screw fixing mold groove.

[0077] In this embodiment, the middle-layer mold includes a middle-layer upper mold 21, a middle-layer lower mold 22, a middle-layer side mold 23, a middle-layer bottom mold 24, a middle-layer right-angle fixing member 25 and a middle-layer limiting fixing member 26. A middle-layer upper mold 21, a middle-layer lower mold 22, two middle-layer side molds 23 facing each other, and two middle-layer bottom molds 24 facing each other are detachably connected to form a rectangular parallelepiped mold through fasteners. The middle-layer right-angle fixing member 25 is a U-shaped structure, and each of the two short sides of the middle-layer bottom mold 24 is detachably fixed with a middle-layer right-angle fixing member 25 through fasteners. The middle-layer right-angle fixing member 25 is detachably fixedly connected with the adjacent middle-layer bottom mold 24, the middle-layer upper mold 21, the middle-layer lower mold 22 and the middle-layer side mold 23 through fasteners. The two ends of the middle-layer limiting fixing member 26 are detachably fixed to the middle-layer upper mold 21 and the middle-layer lower mold 22 through fasteners. The middle layer lower mold 22 is provided with a female positioning groove, the middle layer upper mold 21 is provided with a male positioning groove, and the middle layer side mold 23 is provided with a connecting screw fixing mold groove.

[0078] In this embodiment, the bottom mold includes a bottom upper mold 31, a bottom lower mold 32, a bottom side mold 33, a bottom bottom mold 34, a bottom right-angle fixing piece 35 and a bottom limit fixing piece 36. A bottom upper mold 31, a bottom lower mold 32, two bottom side molds 33 facing each other, and two bottom bottom molds 34 facing each other are detachably connected to form a rectangular parallelepiped mold by fasteners. The bottom right-angle fixing piece 35 is a U-shaped structure, and each of the two short sides of the bottom bottom mold 34 is detachably fixed with a bottom right-angle fixing piece 35 by fasteners. The bottom right-angle fixing piece 35 is detachably fixedly connected with the adjacent bottom bottom mold 34, the bottom upper mold 31, the bottom lower mold 32 and the bottom side mold 33 by fasteners. The two ends of the bottom limit fixing piece 36 are detachably fixed to the bottom upper mold 31 and the bottom lower mold 32 by fasteners respectively. The bottom upper mold 31 is provided with a public positioning groove, and the bottom side mold 33 is provided with a connecting screw fixing mold groove.

[0079] In this embodiment, the fasteners used are bolts and nut assemblies, and those skilled in the art may also select other fasteners as needed. The top mold, the middle mold and the bottom mold are preferably made of stainless steel, and the connecting screw fixing mold grooves set on the side are used to form the connecting screw fixing grooves on the module, and the male positioning grooves and female positioning grooves set on the surface are used to form the protrusions and grooves on the module respectively.

[0080] like Fig.35 As shown, this embodiment also provides a construction method for a modular prefabricated assembled pipeline, using the above-mentioned processing mold to manufacture the above-mentioned modular prefabricated assembled pipeline, and comprising the following steps:

[0081] S1, prefabricating reinforced concrete modules through molds;

[0082] S2, laying one layer of modules at intervals along the extension direction of the excavation line;

[0083] S3. Lay a layer of pipes above the module so that the pipes are embedded in the semicircular holes on the module;

[0084] S4, looping through step S2 and step S3 until the topmost module is laid, during which the upper and lower modules are limited by the embedded cooperation of the male positioning groove and the female positioning groove on the module;

[0085] S5, fixing a group of modules at the same position into a combined module by connecting components;

[0086] S6, tying and connecting the adjacent ends of the longitudinal reinforcements of two adjacent combined modules, erecting a secondary vertical casting mold 41 at each of the two transverse openings of the gap between the two combined modules, and casting between the two secondary vertical casting molds 41 to form a secondary casting module;

[0087] S7. After the curing of the secondary casting module is completed, the secondary vertical casting mold 41 is removed and the excavated line is buried.

[0088] When optical fiber round tube holes are further provided along the longitudinal direction on the top module, a step of laying the optical fiber round tube is added in step S3.

[0089] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A modular prefabricated pipeline, characterized in that: include: A combination module, wherein the combination module comprises a plurality of modules arranged in sequence from top to bottom, the module comprises a steel mesh frame and a concrete block cast on the steel mesh frame, both ends of the longitudinal bars of the steel mesh frame extend out of the concrete block, contact surfaces of two adjacent modules are provided with longitudinally extending semicircular holes, the semicircular holes are opposite to each other and form a plurality of circular holes, both lateral sides of the module are provided with connecting screw fixing grooves, the contact surfaces of two adjacent modules are limited by the embedded cooperation of the male positioning groove and the female positioning groove, the adjacent ends of the longitudinal bars of two adjacent combination modules are tied and connected, and each combination module is fixed as a whole by welding two adjacent steel mesh frames above and below and / or by locking the connection assembly; The connection assembly includes a connection screw extending in the up-down direction and a plurality of nuts respectively threadedly connected to both ends of the connection screw, the connection screw passes through the side wall of the connection screw fixing groove in the up-down direction, and the plurality of nuts are respectively located in the connection screw fixing groove of the module on the top layer and the connection screw fixing groove of the module on the bottom layer; A secondary casting module, wherein the secondary casting module is a concrete block cast between two adjacent combination modules, and the proximal ends of the longitudinal reinforcements of the two adjacent combination modules are buried in the secondary casting module; Each of the combined modules includes at least three modules, including a top-level module, a plurality of middle-level modules and a bottom-level module; The top module is provided with optical fiber circular tube holes in the longitudinal direction; The lower surface of the top module is provided with a groove, the upper surface of the middle module is provided with a protrusion, the lower surface of the middle module is provided with a groove, the upper surface of the bottom module is provided with a protrusion, and the protrusions and the grooves on the contact surfaces of two adjacent modules are directly opposite and are limited by embedded cooperation; The steel mesh frame includes embedded iron sheets and mutually perpendicular longitudinal bars, transverse bars and vertical bars, the vertical bars extending in the up-down direction, and the same number of embedded iron sheets that are positioned opposite to each other are respectively welded and fixed to the lower end of the vertical bars of the top module, the upper end of the vertical bars of the middle module, the lower end of the vertical bars of the middle module and the upper end of the vertical bars of the bottom module, the embedded iron sheets include a fixedly connected horizontal portion and a bent portion, the embedded iron sheets are covered on the bottom edge of the module, and the embedded iron sheets of the upper and lower adjacent steel mesh frames are welded and connected, so that the multiple steel mesh frames of the combined module form a whole.

2. A processing mold for modular prefabricated assembled pipes, characterized in that: The method is used to prepare the modular prefabricated assembled pipeline as claimed in claim 1, comprising a top mold for processing the top module, a middle mold for processing the middle module, a bottom mold for processing the bottom module and a secondary vertical mold casting mold for processing the secondary casting module, wherein the lower part of the top mold, the upper part of the middle mold, the lower part of the middle mold and the upper part of the bottom mold are all provided with semicircular annular concave surfaces that are positioned opposite and extend longitudinally, the lower part of the top mold is provided with a female positioning groove, the lateral sides of the top mold are respectively provided with connecting screw fixing mold grooves, and the upper part of the middle mold is provided with a male positioning groove. Grooves, a female positioning groove is provided at the lower part of the middle mold, and connecting screw fixing grooves are respectively provided on both lateral sides of the middle mold, a male positioning groove is provided at the upper part of the bottom mold, and connecting screw fixing grooves are respectively provided on both lateral sides of the bottom mold, and through holes for longitudinal reinforcement to pass through are provided at both longitudinal ends of the top mold, the middle mold and the bottom mold. After the top module, the middle module and the bottom module are combined into a combined module, the two lateral openings of the gap between the two combined modules are respectively used to erect one of the secondary mold casting molds and cast in the middle to form a secondary casting module.

3. The processing mold for modular prefabricated assembled pipeline according to claim 2 is characterized in that: The top layer mold comprises a top layer upper mold, a top layer lower mold, a top layer side mold, a top layer bottom mold, a top layer right-angle fixing piece, an optical fiber round tube mold fixing piece and an optical fiber round tube mold. One top layer upper mold, one top layer lower mold, two top layer side molds facing each other and two top layer bottom molds facing each other are detachably connected to form a rectangular parallelepiped mold by fasteners. The top layer right-angle fixing piece is a U-shaped structure. Each of the two short sides of the top layer bottom mold is detachably fixed to one top layer right-angle fixing piece by fasteners. The top layer right-angle fixing piece is simultaneously detachably fixedly connected to the adjacent top layer bottom mold, the top layer upper mold, the top layer lower mold and the top layer side mold by fasteners. The optical fiber round tube mold is fixed on the optical fiber round tube mold fixing piece. The two ends of the optical fiber round tube mold fixing piece are detachably fixed to the top layer upper mold and the top layer lower mold by fasteners respectively. The optical fiber round tube mold extends longitudinally and passes through the top layer mold. The top layer lower mold is provided with the female positioning groove, and the top layer side mold is provided with the connecting screw fixing mold groove.

4. The processing mold for modular prefabricated assembled pipeline according to claim 2 is characterized in that: The middle-layer mold comprises a middle-layer upper mold, a middle-layer lower mold, a middle-layer side mold, a middle-layer bottom mold, a middle-layer right-angle fixing piece and a middle-layer limiting fixing piece. One middle-layer upper mold, one middle-layer lower mold, two middle-layer side molds facing each other, and two middle-layer bottom molds facing each other are detachably connected to form a rectangular mold through fasteners. The middle-layer right-angle fixing piece is a U-shaped structure. Two short sides of the middle-layer bottom mold are detachably fixed to one middle-layer right-angle fixing piece through fasteners. The middle-layer right-angle fixing piece is simultaneously detachably fixedly connected to the adjacent middle-layer bottom mold, the middle-layer upper mold, the middle-layer lower mold and the middle-layer side mold through fasteners. The two ends of the middle-layer limiting fixing piece are detachably fixed to the middle-layer upper mold and the middle-layer lower mold through fasteners respectively. The middle-layer lower mold is provided with the female positioning groove, the middle-layer upper mold is provided with the male positioning groove, and the middle-layer side mold is provided with the connecting screw fixing mold groove.

5. The processing mold for modular prefabricated assembled pipeline according to claim 2, characterized in that: The bottom mold comprises a bottom upper mold, a bottom lower mold, a bottom side mold, a bottom bottom mold, a bottom right-angle fixing piece and a bottom limiting fixing piece. One bottom upper mold, one bottom lower mold, two bottom side molds facing each other and two bottom bottom molds facing each other are detachably connected to form a rectangular mold through fasteners. The bottom right-angle fixing piece is a U-shaped structure. Each of the two short sides of the bottom mold is detachably fixed with one bottom right-angle fixing piece through fasteners. The bottom right-angle fixing piece is simultaneously detachably fixedly connected with the adjacent bottom bottom mold, the bottom upper mold, the bottom lower mold and the bottom side mold through fasteners. The two ends of the bottom limiting fixing piece are detachably fixed to the bottom upper mold and the bottom lower mold through fasteners respectively. The bottom upper mold is provided with the public positioning groove, and the bottom side mold is provided with the connecting screw fixing mold groove.

6. A method for constructing modular prefabricated pipelines, characterized in that: The method for preparing the modular prefabricated assembled pipeline according to claim 1 comprises the following steps: S1, prefabricating reinforced concrete modules through molds; S2, laying one layer of modules at intervals along the extension direction of the excavation line; S3. Lay a layer of pipes above the module so that the pipes are embedded in the semicircular holes on the module; S4, looping through step S2 and step S3 until the topmost module is laid, during which the upper and lower modules are limited by the embedded cooperation of the male positioning groove and the female positioning groove on the module; S5, fixing a group of modules at the same position into a combined module by connecting components; S6, tying and connecting the adjacent ends of the longitudinal reinforcements of two adjacent combined modules, erecting a secondary vertical casting mold at each of the two horizontal openings of the gap between the two combined modules, and casting between the two secondary vertical casting molds to form a secondary casting module; S7. After the maintenance of the secondary casting module is completed, the secondary vertical casting mold is removed and the excavated line is buried.

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