Installation method of continuous segment module lining

Abstract

The invention belongs to the technical field of pipeline construction, and discloses an installation method of a continuous segment module lining. The installation method comprises the following steps of 1, construction preparation, 2, pipeline cleaning and detection, 3, segment module hoisting, 4, segment module carrying, 5, segment module splicing, 6, support setting and 7, grouting and filling. 8, removing a support; 9, treating a grouting opening; and 10, completing construction. The continuous pipe piece module lining is assembled in the existing sewer pipe, and the filler is grouted between the pipe piece module and the existing sewer pipe, so that the existing sewer pipe is under the three-layer action of the existing sewer pipe, the pipe piece filler and the pipe piece module, and the effect of effectively reinforcing the interior of the existing sewer pipe is achieved; and the service life is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline construction, and more specifically, to a method for installing a continuous segment module lining. Background Art

[0002] Sewer pipes are a type of urban public facility, referring to pipes used by buildings to discharge sewage and rainwater, and also referring to underground passages used by cities, factories or villages to discharge sewage and rainwater.

[0003] At present, due to the age of old sewer pipes and the influence of factors such as corrosion and erosion, in order to improve the service life of old sewer pipes, pipe linings are generally installed inside the pipes to strengthen the inside. However, the existing installation method of pipe linings is not only cumbersome to operate, but also has the problem of low installation and construction efficiency.

[0004] In order to solve the above problems, the present application provides a method for installing a continuous segment module lining. Summary of the invention

[0005] The present application provides a method for installing a continuous segment module lining using the following technical solution: A method for installing a continuous segment module lining comprises the following steps: Step 1: Construction preparation, select the existing old sewer pipes to be installed with the continuous segment module lining, plan the construction sequence of different pipelines and layout the construction process, and prepare the segment module materials, other materials and construction equipment required in the installation process; Step 2: Pipeline cleaning and inspection: clean the old sewer pipes before construction and conduct safety inspections on their interiors; Pipe cleaning is done by physical and chemical methods, that is, spraying a mixture of baking soda, white vinegar, and laundry detergent on the inner wall of the pipe while using a brush to clean the inner wall of the pipe. Pipe safety testing includes visual inspection, pressure testing, smoke testing, and infrared thermal imaging testing. Step 3: Lifting the segment modules: hoist each independent segment module into the pipe opening of the sewer pipe to be constructed in sequence with the assistance of external lifting equipment; Step 4: Segment module transportation: manually receive the segment modules hoisted into the sewer pipe opening, and carry them to the construction site by hand-pushing and rolling them inside the sewer pipe according to the regular appearance design of the segment modules themselves; Step 5: Segment module assembly: assemble different independent segment module liners inside the existing sewer pipe and make them present a continuous and contacting state, and the liners of two adjacent segment modules are fixedly connected to each other by multiple sets of bolts and nuts; Step 6: Setting support: During the segment module assembly process, the assembled continuous segment modules are provided with support structures in stages, so that the lining of the segment module is supported and positioned inside the existing pipeline without contacting the inner wall of the existing pipeline; Step 7: Grouting and filling: Grouting and filling the assembled continuous segment module lining in stages, so that the grouting material fills the gap between the segment module lining and the inner wall of the existing pipeline, so that the existing sewer pipeline presents a three-layer installation state of the existing pipeline, the segment filling material, and the segment module; Step 8: Remove the support. After the staged grouting filling operation is completed, remove the support structure of the corresponding staged segment module lining; Step 9: Grouting port treatment: Based on the staged grouting process, the grouting port needs to be sealed after the grouting is completed; Step 10: After the construction is completed, the internal segment module lining construction of the planned length of the existing sewer pipe is completed, and the personnel withdraw with the construction tools and excess materials.

[0006] Furthermore, during the construction preparation stage, if there is a temporary need to drain the old sewer pipes, the construction can be directly suspended according to the operation status of the pipes.

[0007] Through the above technical solution, the construction process can be directly suspended according to the operation status of the old sewer pipes, so as to effectively achieve the time freedom effect of the overall installation construction.

[0008] Furthermore, other materials used in the construction preparation stage include segment module joint supplies, covers and injection port covers, gaskets, plastic films, etc., and the construction equipment mainly includes air compressors, generators, grouting pumps, fans, etc.

[0009] Furthermore, the mixed liquid required for pipeline cleaning needs to be mixed with warm water of 40 to 60 degrees Celsius, and the visual inspection includes inspection of damage, corrosion or leakage of the inner wall of the pipeline.

[0010] Furthermore, during the grouting filling stage, a grouting port needs to be opened on the segment module, and the grouting process is carried out in cooperation with an external grouting machine. After the grouting, the port needs to be sealed with tools such as an injection port cover and a gasket.

[0011] Furthermore, the main material of the pipe segment module is a plastic molded product, and the material is PVC hard polyvinyl chloride material.

[0012] Furthermore, the segment module can be installed on the inner walls of both circular and rectangular pipes, and the applicable diameter size range for circular pipes is 1000-3000mm, while the applicable side length size range for rectangular pipes is more than 1000mm on the short side and less than 6200mm on the long side. The width of the segment module is 200mm.

[0013] Furthermore, the outer wall of the segment module is linearly and evenly distributed with a plurality of grooves, the grouting filler is a mixed mortar material, and the grouting filler is filled between the segment module and the existing pipeline and fills each groove position of the outer wall of the segment module.

[0014] Through the above technical solution, the structural design of the outer wall of the segment module can increase the contact area with the grouting filler and effectively improve the connection stability effect between the two.

[0015] In summary, this application includes the following beneficial technical effects: The present application realizes effective reinforcement of the interior of the existing sewer pipe and improves its service life by assembling a continuous segment module lining inside the existing sewer pipe and grouting filler between the segment module and the existing pipe, so that the existing sewer pipe presents a three-layer effect of the existing pipe, the segment filler and the segment module, and the segment module is used. The staged assembly of the segment module and the grouting of the segment filler have the advantages of simple overall installation and construction operation and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a flow chart of the overall installation method of this application; Figure 2 This is a schematic diagram of the segment module lining method of this application; Figure 3 A side cross-sectional view of the segment module lining method of the present application; Figure 4 For this application Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the circular and rectangular pipes after repair in this application. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0018] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0020] Example: The present application discloses a method for installing a continuous segment module lining. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , including the following steps: Step 1: Construction preparation, select the existing old sewer pipes to be installed with the continuous segment module lining, plan the construction sequence of different pipelines and layout the construction process, and prepare the segment module materials, other materials and construction equipment required in the installation process; Step 2: Pipeline cleaning and inspection: clean the old sewer pipes before construction and conduct safety inspections on their interiors; Pipe cleaning is done by physical and chemical methods, that is, spraying a mixture of baking soda, white vinegar, and laundry detergent on the inner wall of the pipe while using a brush to clean the inner wall of the pipe. Pipe safety testing includes visual inspection, pressure testing, smoke testing, and infrared thermal imaging testing. Step 3: Lifting the segment modules: hoist each independent segment module into the pipe opening of the sewer pipe to be constructed in sequence with the assistance of external lifting equipment; Step 4: Segment module transportation: manually receive the segment modules hoisted into the sewer pipe opening, and carry them to the construction site by hand-pushing and rolling them inside the sewer pipe according to the regular appearance design of the segment modules themselves; Step 5: Segment module assembly: assemble different independent segment module liners inside the existing sewer pipe and make them present a continuous and contacting state, and the liners of two adjacent segment modules are fixedly connected to each other by multiple sets of bolts and nuts; Step 6: Setting support: During the segment module assembly process, the assembled continuous segment modules are provided with support structures in stages, so that the lining of the segment module is supported and positioned inside the existing pipeline without contacting the inner wall of the existing pipeline; Step 7: Grouting and filling: Grouting and filling the assembled continuous segment module lining in stages, so that the grouting material fills the gap between the segment module lining and the inner wall of the existing pipeline, so that the existing sewer pipeline presents a three-layer installation state of the existing pipeline, the segment filling material, and the segment module; Step 8: Remove the support. After the staged grouting filling operation is completed, remove the support structure of the corresponding staged segment module lining; Step 9: Grouting port treatment: Based on the staged grouting process, the grouting port needs to be sealed after the grouting is completed; Step 10: After the construction is completed, the internal segment module lining construction of the planned length of the existing sewer pipe is completed, and the personnel withdraw with the construction tools and excess materials.

[0021] Among them, through the above steps, the overall continuous segment module lining installation method also has the following effects: the PVC segment module (which is a transparent, lightweight structure, each weighing no more than 4kg) is small in size, light in weight, and easy to construct; the grouting of the filler can be visually controlled to ensure the quality of the project; construction can be carried out from the middle of the pipeline to both ends at the same time to shorten the construction period; the construction time is flexible, and the construction can be suspended according to the operation of the pipeline; the roughness coefficient is small, which can ensure the flow of the original pipeline before repair; PVC material, corrosion resistance, good wear resistance; high strength, the ring stiffness of the repaired pipeline is greater than the original pipeline; composite pipeline, can greatly extend the service life of the pipeline; does not require large-scale mechanical equipment, suitable for various construction environments; low construction noise, does not affect the surrounding environment and residents' lives; pneumatic equipment is used for well operations to ensure safe construction; different plastic materials and colors of segments can be used for construction according to the purpose.

[0022] During the construction preparation stage, if the old sewer pipes need to be drained temporarily, the construction can be suspended directly according to the operation status of the pipes. Other materials used during the construction preparation stage include pipe segment module joint supplies, covers and injection port covers, gaskets, plastic films, etc., and the construction equipment mainly includes air compressors, generators, grouting pumps, fans, etc. The mixed liquid required for pipe cleaning needs to be mixed with warm water of 40 to 60 degrees Celsius, and the visual inspection includes inspection of damage, corrosion or leakage of the inner wall of the pipe. During the grouting filling stage, a grouting port needs to be opened on the segment module, and the grouting process needs to be carried out with the help of an external grouting machine. After grouting, the port needs to be sealed with tools such as an injection port cap and a gasket. The main material of the segment module is a plastic molded product, and the material is PVC hard polyvinyl chloride material; the segment module can be used for installation on the inner walls of both circular and rectangular pipes, and the applicable diameter size range of the circular pipe is 1000-3000mm, while the applicable side length size range of the rectangular pipe is more than 1000mm on the short side and less than 6200mm on the long side. The width of the segment module is 200mm; the outer wall of the segment module is linearly and evenly distributed with multiple grooves, the grouting filler is a mixed mortar material, and the grouting filler is filled between the segment module and the existing pipe and fills each groove position on the outer wall of the segment module.

[0023] Further below, the proportion table of filling mortar is attached (per 1 cubic meter):

[0024] Ingredients of the mixture:

[0025] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for installing a continuous segment module lining, characterized in that: The following steps are involved: Step 1: Construction preparation, select the existing old sewer pipes to be installed with the continuous segment module lining, plan the construction sequence of different pipelines and layout the construction process, and prepare the segment module materials, other materials and construction equipment required in the installation process; Step 2: Pipeline cleaning and inspection: clean the old sewer pipes before construction and conduct safety inspections on their interiors; Pipe cleaning is done by physical and chemical methods, that is, spraying a mixture of baking soda, white vinegar, and laundry detergent on the inner wall of the pipe while using a brush to clean the inner wall of the pipe. Pipe safety testing includes visual inspection, pressure testing, smoke testing, and infrared thermal imaging testing. Step 3: Lifting the segment modules: hoist each independent segment module into the pipe opening of the sewer pipe to be constructed in sequence with the assistance of external lifting equipment; Step 4: Segment module transportation: manually receive the segment modules hoisted into the sewer pipe opening, and carry them to the construction site by hand-pushing and rolling them inside the sewer pipe according to the regular appearance design of the segment modules themselves; Step 5: Segment module assembly: assemble different independent segment module liners inside the existing sewer pipe and make them present a continuous and contacting state, and the liners of two adjacent segment modules are fixedly connected to each other by multiple sets of bolts and nuts; Step 6: Setting support: During the segment module assembly process, the assembled continuous segment modules are provided with support structures in stages, so that the lining of the segment module is supported and positioned inside the existing pipeline without contacting the inner wall of the existing pipeline; Step 7: Grouting and filling: Grouting and filling the assembled continuous segment module lining in stages, so that the grouting material fills the gap between the segment module lining and the inner wall of the existing pipeline, so that the existing sewer pipeline presents a three-layer installation state of the existing pipeline, the segment filling material, and the segment module; Step 8: Remove the support. After the staged grouting filling operation is completed, remove the support structure of the corresponding staged segment module lining; Step 9: Grouting port treatment: Based on the staged grouting process, the grouting port needs to be sealed after the grouting is completed; Step 10: After the construction is completed, the internal segment module lining construction of the planned length of the existing sewer pipe is completed, and the personnel withdraw with the construction tools and excess materials.

2. The method for installing a continuous segment module lining according to claim 1, characterized in that: During the construction preparation stage, if there is a temporary need to drain the old sewer pipes, the construction can be directly suspended based on the pipeline operation conditions.

3. The method for installing a continuous segment module lining according to claim 1, characterized in that: Other materials used in the construction preparation stage include segment module joint supplies, covers and injection port covers, gaskets, plastic films, etc., and the construction equipment mainly includes air compressors, generators, grouting pumps, fans, etc.

4. The method for installing a continuous segment module lining according to claim 1, characterized in that: The mixed liquid required for pipeline cleaning needs to be added with warm water of 40 to 60 degrees Celsius during mixing, and the visual inspection includes inspection of damage, corrosion or leakage of the inner wall of the pipeline.

5. The method for installing a continuous segment module lining according to claim 3, characterized in that: During the grouting filling stage, a grouting port needs to be opened on the segment module, and the grouting process is carried out in cooperation with an external grouting machine. After the grouting, the port needs to be sealed with tools such as an injection port cover and a gasket.

6. The method for installing a continuous segment module lining according to claim 1, characterized in that: The main material of the pipe segment module is a plastic molded product, and the material is PVC hard polyvinyl chloride material.

7. The method for installing a continuous segment module lining according to claim 1, characterized in that: The segment module can be installed on the inner walls of both circular and rectangular pipes, and the applicable diameter range of the circular pipe is 1000-3000mm, while the applicable side length range of the rectangular pipe is more than 1000mm on the short side and less than 6200mm on the long side. The width of the segment module is 200mm.

8. The method for installing a continuous segment module lining according to claim 1, characterized in that: The outer wall of the segment module is linearly and evenly distributed with a plurality of grooves, the grouting filler is a mixed mortar material, and the grouting filler is filled between the segment module and the existing pipeline and fills each groove position on the outer wall of the segment module.

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