Municipal pipeline foundation module and construction method thereof

Abstract

A municipal pipeline foundation module comprises a pipeline bearing part, the pipeline bearing part comprises a rectangular block body, a long-strip-shaped groove with a semicircular section is formed in the rectangular block body, and a horizontal plate and two vertical plates are arranged on the front side of the rectangular block body; the two vertical plates and the horizontal plate jointly define a flat-bottom U-shaped groove which is used for containing a pipeline connector and provided with an opening in the upper side. The construction method comprises the following steps that according to the size of a municipal concrete pipeline, the modules are prefabricated in a matched mode, grooves are excavated, the modules are connected end to end, positioned and fixed in the pipeline grooves, pipeline single bodies are hung on the modules, pipe bodies of the pipeline single bodies are matched with long-strip-shaped grooves, and horn-shaped pipe joints are arranged in flat-bottom U-shaped grooves. According to the construction method, the problems that the cast-in-place construction period of the foundation and the pipe seat of the municipal pipeline is long, the consumption is large, and the cost is high are solved in a modular prefabrication mode.

Description

Technical Field

[0001] The invention relates to a municipal pipeline foundation module and a construction method thereof Background Art

[0002] At present, in the construction of municipal pipelines, concrete pipes and inspection wells are generally produced by prefabricated component factories and transported to the site for assembly. Concrete pipes generally adopt socket-type concrete pipes. The structure is shown in Chinese patent CN200410056874.5. It is composed of multiple pipe monomers plugged into an integral pipe. Each pipe monomer includes a cylindrical pipe body and a trumpet-shaped pipe joint located at one end of the length direction of the pipe body.

[0003] However, the foundation and pipe seat of existing municipal concrete pipes still adopt the construction method of pouring concrete on site. This construction method requires pouring the pipe foundation first, and then hanging the concrete pipe when the foundation has a certain bearing capacity. After the concrete pipe is assembled, the formwork is supported to cast the concrete pipe seat, and then the pipe joints are processed and the pipes are backfilled. The construction period is long, a large number of manpower and formwork are used on site, the cost is high, and the efficiency is low. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a municipal pipeline foundation module, which solves the problem of long construction period, high consumption and high cost of on-site pouring of the foundation and pipe seat of the municipal pipeline through modular prefabrication.

[0005] The second technical problem to be solved by the present invention is to provide a construction method for the above-mentioned municipal pipeline foundation module. The method has concise and rigorous steps, fast construction speed, and seamless connection between various processes to form a flow operation, thereby improving work efficiency, saving labor costs in the engineering construction process, and being able to speed up construction speed, greatly shortening the construction period.

[0006] In order to solve the first technical problem mentioned above, the present invention provides a municipal pipeline basic module, including a pipeline receiving part, wherein the pipeline receiving part includes a horizontally arranged rectangular block with a length direction in a front-to-back direction, a long strip groove with a length direction in a front-to-back direction, a semicircular cross-sectional shape and an opening arranged upwardly arranged on the upper side of the rectangular block, and both sides of the long strip groove in the length direction penetrate to the front and rear ends of the rectangular block, and a horizontal plate extending horizontally forward is provided at the lower front side of the rectangular block, the lower side of the horizontal plate is flush with the lower side of the rectangular block, and the upper side of the horizontal plate is lower than the bottom of the long strip groove. Height, both sides of the horizontal plate in the width direction are flush with the corresponding sides of the rectangular block in the width direction, and a vertical plate extending forward is provided on the front side of the rectangular block near both ends in the width direction. The front sides of the two vertical plates are flush with the front sides of the horizontal plates. The side of the two vertical plates that are close to each other in the left and right directions is inner, and the side that is far away from each other is outer. The outer side surfaces of the two vertical plates are flush with the outer side surfaces of the corresponding side of the rectangular block. The spacing between the inner sides of the two vertical plates in the left and right directions is greater than the width of the upper opening of the long strip groove. The two vertical plates and the horizontal plate together form a flat-bottomed U-shaped groove with an open upper side for accommodating pipe interfaces.

[0007] Preferably, at least two hanging rings are arranged at intervals in front and back at the upper side of the rectangular block at the left and right sides corresponding to the long strip groove.

[0008] For the purpose of simple explanation, the municipal pipeline basic module described in the present invention is referred to as this module below.

[0009] Advantages of this module: This module adopts modular prefabrication. This module and the pipeline monomer can be transported to the site for direct assembly. The prefabrication method reduces the time for on-site template installation and concrete curing, eliminates the construction intervals between the previous processes, speeds up the construction speed, and greatly shortens the construction period. It is particularly suitable for tight construction periods and poor construction environments, such as construction during the rainy season, and can be completed quickly during the rainy weather. In terms of environmental protection, since this module and the pipeline monomer are produced by the prefabricated component factory, the construction site does not generate a large amount of environmental pollution caused by pouring concrete and construction templates, which not only saves resources but also greatly reduces the burden on the environment, which is in line with the green and environmentally friendly construction advocated by the country. In terms of molding quality, all prefabricated components (this module and pipeline monomer) are factory-prefabricated, and the linear shape and concrete strength of the prefabricated assembled pipeline can be guaranteed after the construction is completed.

[0010] In order to solve the above second technical problem, the present invention provides a construction method of a municipal pipeline basic module, comprising the following steps:

[0011] (1) The prefabricated component factory prefabricates the municipal pipeline foundation module according to the size of the municipal concrete pipeline, and the municipal pipeline foundation module adopts C30 concrete;

[0012] (2) Lay out the target area of ​​the pipeline for excavation according to the pipeline construction drawings and spread white lime. The excavator excavates the pipeline trench according to the white lime line. The excavation is carried out manually until the remaining 20-30cm of the pipe bottom elevation is reached. After the excavation is completed, the bottom elevation, width and foundation bearing capacity of the trench are inspected and accepted;

[0013] (3) For areas with insufficient bearing capacity of the foundation, replace the ground with gravel according to the specifications, and then lay a 5 cm thick medium-coarse sand cushion to ensure the flatness of the module foundation;

[0014] (4) Transport the municipal pipeline foundation modules that have passed the acceptance inspection of the prefabricated component factory to the construction site. The transportation is carried out by flatbed trucks. When loading, the prefabricated modules are firmly fixed with wooden boards. The transportation route is selected on roads with good road conditions to reduce bumps;

[0015] (5) The municipal pipeline foundation modules transported to the site shall be jointly inspected and accepted by the construction unit, supervision unit and testing unit to check whether there are any damages or corner drops, and whether the concrete strength meets the requirements. After passing the inspection, the municipal pipeline foundation modules shall be hoisted by a crane. The municipal pipeline foundation modules shall be connected and positioned and fixed along the front and back ends in the pipeline groove. When installing the municipal pipeline foundation modules, the project technicians shall lay out the lines in advance to ensure the accurate installation position of the modules, and supervise the entire installation process and correct the deviations in time;

[0016] (6) Hanging and placing the pipe monomer of the municipal concrete pipe on the assembled municipal pipe foundation module, the pipe body of the pipe monomer cooperates with the long strip groove on the rectangular block, the trumpet-shaped pipe joint of the pipe monomer is placed in the flat-bottomed U-shaped groove, and the pipe monomer adopts a rubber ring socket-type concrete pipe. After the pipe monomer is hung and assembled, fine stone concrete is poured in the gap between the trumpet-shaped pipe joint of the pipe monomer and the flat-bottomed U-shaped groove, so that each pipe monomer is combined with the corresponding municipal pipe foundation module into a whole;

[0017] (7) Inspect and accept the completed municipal concrete pipes and municipal pipe foundation installations, check whether the slope, height and straightness of the municipal concrete pipes and municipal pipe foundation installations are qualified. If qualified, conduct a functional water-tightness test on the entire pipe to check whether there is water seepage at the joints.

[0018] For the purpose of simple explanation, the construction method of a municipal pipeline basic module described in the present invention is referred to as this method below.

[0019] Advantages of this method: The steps of this method are concise and rigorous, the construction speed is fast, and the seamless connection between each process forms a flow operation, thereby improving work efficiency, saving labor costs during the construction process, speeding up the construction speed, and greatly shortening the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of this module.

[0021] Figure 2 This is a schematic diagram of the assembly status of this module and the pipeline monomer. DETAILED DESCRIPTION

[0022] See also Figure 1 , Figure 2 A municipal pipeline basic module includes a pipeline receiving part, wherein the pipeline receiving part includes a horizontally arranged rectangular block 1 with a longitudinal direction running in a front-to-back direction, a long strip groove 11 with a longitudinal direction running in a front-to-back direction, a semicircular cross-sectional shape and an opening arranged upwardly is provided on the upper side of the rectangular block 1, and both sides of the long strip groove 11 in the longitudinal direction penetrate to the front and rear ends of the rectangular block 1, and a horizontal plate 21 extending horizontally forward is provided at the lower front side of the rectangular block 1, and the lower side of the horizontal plate 21 is flush with the lower side of the rectangular block 1, and the upper side of the horizontal plate 21 is lower than the bottom height of the long strip groove 11, and the horizontal plate 21 in the width direction is The two sides are flush with the corresponding two sides in the width direction of the rectangular block 1. A vertical plate 22 extending forward is provided on the front side of the rectangular block 1 near both ends in the width direction. The front sides of the two vertical plates 22 are flush with the front sides of the horizontal plate 21. The side of the two vertical plates 22 that is close to each other in the left and right directions is the inner side, and the side that is away from each other is the outer side. The outer side surfaces of the two vertical plates 22 are flush with the outer side surfaces of the corresponding side of the rectangular block 1. The spacing between the inner sides of the two vertical plates 22 in the left and right directions is greater than the width of the upper opening of the long strip groove 11. The two vertical plates 22 and the horizontal plate 21 together form a flat-bottomed U-shaped groove 2 with an open upper side for accommodating a pipeline interface.

[0023] Two hanging rings 12 are arranged at intervals in front and back on the upper side of the rectangular block 1 at the left and right sides corresponding to the long strip groove 11.

[0024] Advantages of this module: This module adopts modular prefabrication. This module and the pipeline monomer 3 can be transported to the site for direct assembly. The prefabrication reduces the time for on-site template installation and concrete curing, eliminates the construction intervals between the previous processes, speeds up the construction speed, and greatly shortens the construction period. It is particularly suitable for tight construction periods and poor construction environments, such as construction during the rainy season, and can be completed quickly during the rainy weather. From the perspective of environmental protection, since this module and the pipeline monomer 3 are produced by prefabricated component factories, the construction site does not generate a large amount of environmental pollution caused by pouring concrete and construction templates, which not only saves resources but also greatly reduces the burden on the environment, which is in line with the green and environmentally friendly construction advocated by the country. In terms of molding quality, all prefabricated components (this module and pipeline monomer 3) are factory-prefabricated, and the linear shape and concrete strength of the prefabricated assembled pipeline can be guaranteed after the construction is completed.

[0025] A construction method for a municipal pipeline foundation module comprises the following steps:

[0026] (1) The prefabricated component factory prefabricates the municipal pipeline foundation module according to the size of the municipal concrete pipeline, and the municipal pipeline foundation module adopts C30 concrete;

[0027] (2) Lay out the target area of ​​the pipeline for excavation according to the pipeline construction drawings and spread white lime. The excavator excavates the pipeline trench according to the white lime line. The excavation is carried out manually until the remaining 20-30cm of the pipe bottom elevation is reached. After the excavation is completed, the bottom elevation, width and foundation bearing capacity of the trench are inspected and accepted;

[0028] (3) For areas with insufficient bearing capacity of the foundation, replace the ground with gravel according to the specifications, and then lay a 5 cm thick medium-coarse sand cushion to ensure the flatness of the module foundation;

[0029] (4) Transport the municipal pipeline foundation modules that have passed the acceptance inspection of the prefabricated component factory to the construction site. The transportation is carried out by flatbed trucks. When loading, the prefabricated modules are firmly fixed with wooden boards. The transportation route is selected on roads with good road conditions to reduce bumps;

[0030] (5) The municipal pipeline foundation modules transported to the site shall be jointly inspected and accepted by the construction unit, supervision unit and testing unit to check whether there are any damages or corner drops, and whether the concrete strength meets the requirements. After passing the inspection, the municipal pipeline foundation modules shall be hoisted by a crane. The municipal pipeline foundation modules shall be connected and positioned and fixed along the front and back ends in the pipeline groove. When installing the municipal pipeline foundation modules, the project technicians shall lay out the lines in advance to ensure the accurate installation position of the modules, and supervise the entire installation process and correct the deviations in time;

[0031] (6) Hanging and placing the pipe monomer 3 of the municipal concrete pipe on the assembled municipal pipe basic module, the pipe body 31 of the pipe monomer 3 cooperates with the long strip groove 11 on the rectangular block 1, and the trumpet-shaped pipe joint 32 of the pipe monomer 3 is placed in the flat-bottomed U-shaped groove 2. The pipe monomer 3 adopts a rubber ring socket-type concrete pipe. After the pipe monomer 3 is hung and assembled, fine stone concrete is poured in the gap between the trumpet-shaped pipe joint 32 of the pipe monomer 3 and the flat-bottomed U-shaped groove 2, so that each pipe monomer 3 is combined with the corresponding municipal pipe basic module into a whole;

[0032] (7) Inspect and accept the completed municipal concrete pipes and municipal pipe foundation installations, check whether the slope, height and straightness of the municipal concrete pipes and municipal pipe foundation installations are qualified. If qualified, conduct a functional water-tightness test on the entire pipe to check whether there is water seepage at the joints.

[0033] Advantages of this method: The steps of this method are concise and rigorous, the construction speed is fast, and the seamless connection between each process forms a flow operation, thereby improving work efficiency, saving labor costs during the construction process, speeding up the construction speed, and greatly shortening the construction period.

Claims

1. A municipal pipeline basic module, characterized in that: The pipe receiving part comprises a horizontally arranged rectangular block with a longitudinal direction extending in a front-to-back direction. A long strip groove with a longitudinal direction extending in a front-to-back direction, a semicircular cross-sectional shape and an opening arranged upward is provided on the upper side of the rectangular block. Both sides of the long strip groove in the length direction penetrate to the front and rear ends of the rectangular block. A horizontal plate extending horizontally forward is provided at the lower front side of the rectangular block. The lower side of the horizontal plate is flush with the lower side of the rectangular block. The upper side of the horizontal plate is lower than the bottom height of the long strip groove. Both sides of the horizontal plate in the width direction are aligned with the rectangular The two sides of the rectangular block are flush with each other in the width direction, and a vertical plate extending forward is provided on the front side of the rectangular block near both ends in the width direction. The front sides of the two vertical plates are flush with the front sides of the horizontal plates. The side of the two vertical plates that are close to each other in the left and right directions is inner, and the side that is away from each other is outer. The outer side surfaces of the two vertical plates are flush with the outer side surfaces of the corresponding side of the rectangular block. The spacing between the inner sides of the two vertical plates in the left and right directions is greater than the width of the upper opening of the long strip groove. The two vertical plates and the horizontal plate together form a flat-bottomed U-shaped groove with an open upper side for accommodating a pipe interface.

2. A municipal pipeline basic module according to claim 1, characterized in that: At least two hanging rings are arranged at intervals in front and back at the upper side of the rectangular block and at the left and right sides corresponding to the long strip groove.

3. A construction method for a municipal pipeline basic module according to any one of claims 1-2, characterized in that: The following steps are involved: (1) The prefabricated component factory prefabricates the municipal pipeline foundation module according to the size of the municipal concrete pipeline, and the municipal pipeline foundation module adopts C30 concrete; (2) Lay out the target area of ​​the pipeline for excavation according to the pipeline construction drawings and spread white lime. The excavator excavates the pipeline trench according to the white lime line. The excavation is carried out manually until the remaining 20-30cm of the pipe bottom elevation is reached. After the excavation is completed, the bottom elevation, width and foundation bearing capacity of the trench are inspected and accepted; (3) For areas with insufficient bearing capacity of the foundation, replace the ground with gravel according to the specifications, and then lay a 5 cm thick medium-coarse sand cushion to ensure the flatness of the module foundation; (4) Transport the municipal pipeline foundation modules that have passed the acceptance inspection of the prefabricated component factory to the construction site. The transportation is carried out by flatbed trucks. When loading, the prefabricated modules are firmly fixed with wooden boards. The transportation route is selected on roads with good road conditions to reduce bumps; (5) The municipal pipeline foundation modules transported to the site shall be jointly inspected and accepted by the construction unit, supervision unit and testing unit to check whether there are any damages or corner drops, and whether the concrete strength meets the requirements. After passing the inspection, the municipal pipeline foundation modules shall be hoisted by a crane. The municipal pipeline foundation modules shall be connected and positioned and fixed along the front and back ends in the pipeline groove. When installing the municipal pipeline foundation modules, the project technicians shall lay out the lines in advance to ensure the accurate installation position of the modules, and supervise the entire installation process and correct the deviations in time; (6) Hanging and placing the pipe monomer of the municipal concrete pipe on the assembled municipal pipe foundation module, the pipe body of the pipe monomer cooperates with the long strip groove on the rectangular block, the trumpet-shaped pipe joint of the pipe monomer is placed in the flat-bottomed U-shaped groove, and the pipe monomer adopts a rubber ring socket-type concrete pipe. After the pipe monomer is hung and assembled, fine stone concrete is poured in the gap between the trumpet-shaped pipe joint of the pipe monomer and the flat-bottomed U-shaped groove, so that each pipe monomer is combined with the corresponding municipal pipe foundation module into a whole; (7) Inspect and accept the completed municipal concrete pipes and municipal pipe foundation installations, check whether the slope, height and straightness of the municipal concrete pipes and municipal pipe foundation installations are qualified. If qualified, conduct a functional water-tightness test on the entire pipe to check whether there is water seepage at the joints.

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