A prefabricated construction method for water and electricity pipelines in floor slabs

By analyzing the locations of water leakage in the waterproof barrier layer using ultrasonic scanning technology and adjusting the mold design, the molding of the waterproof barrier layer was optimized, solving the problem of easy damage to the waterproof barrier layer and reducing replacement costs and maintenance frequency.

CN117248669BActive Publication Date: 2026-04-03JIANGSU TOP CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-11
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

During the construction of existing water and electricity pipelines on the floor slab, the waterproof isolation layer is easily damaged by factors such as large water leakage and high water pressure, resulting in high replacement costs and inconvenience.

Method used

Ultrasonic scanning technology was used to analyze the locations of potential leaks in the waterproof barrier layer. By adjusting the shape of the punch and the wall thickness of the mold, the forming process of the waterproof barrier layer was optimized to ensure sealing and reduce the probability of leakage.

Benefits of technology

It effectively reduces the risk of the waterproof barrier being damaged by factors such as large leakage and high water pressure, and reduces replacement costs and maintenance frequency.

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Abstract

This invention discloses a prefabricated construction method for water and electricity pipelines in floor slabs, comprising the following steps: S1, Design stage: Determine the routing and connection points of water and electricity pipelines according to architectural design drawings, and formulate a construction plan and schedule; S2, Material preparation: Prefabricate water and electricity pipelines and distribution boxes, including elbows, tees, and crosses, ensuring that the dimensions and specifications meet the design requirements; S3, Site preparation: Mark the locations of water and electricity pipelines on the floor slab and excavate the pipeline installation locations; S4, Pipeline installation: Arrange and connect according to design requirements, assemble the prefabricated pipelines and distribution boxes, connect them using special tools, and connect them to the power and water sources; S5, Sealing treatment: Seal the pipeline connection points and interfaces, and install a waterproof isolation layer at the intersections of water pipelines and electrical wires to ensure no water leakage and no electrical leakage. This invention features low replacement costs.
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Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a prefabricated construction method for water and electricity pipelines in floor slabs. Background Technology

[0002] When installing prefabricated pipes and electrical wires between floor slabs, they are usually laid in the same trench to save space and material costs. However, this also brings some risks, such as electric shock caused by water leaks.

[0003] The existing solution involves installing a waterproof barrier layer at the intersection of water pipes and electrical wires to prevent water from seeping into the wires. However, with the use of these waterproof barriers, some areas are prone to damage due to factors such as high leakage and high water pressure. Since waterproof barriers are often integrated structures to ensure sealing, they require complete replacement, which is costly. Therefore, it is essential to design a prefabricated construction method for floor slab water and electrical pipes that offers lower replacement costs. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a prefabricated construction method for water and electricity pipelines in floor slabs, comprising the following steps:

[0005] S1. Design Phase: Determine the route and connection points of water and electricity pipelines based on architectural design drawings, and formulate construction plans and schedules.

[0006] S2. Material preparation: Prefabricate water and electricity pipes and distribution boxes, including elbows, tees, and crosses, ensuring that the dimensions and specifications meet the design requirements;

[0007] S3. Site preparation: Mark the location of water and electricity pipes on the floor slab and excavate the pipe installation location;

[0008] S4. Pipeline installation: Arrange and connect according to design requirements, assemble prefabricated pipes and distribution boxes, connect them using special tools, and connect them to power and water sources;

[0009] S5. Sealing treatment: Seal the pipe connection points and interfaces, and install a waterproof isolation layer at the intersection of water pipes and electrical wires to ensure no water leakage and no electrical leakage.

[0010] According to the above technical solution, the specific method for setting the waterproof isolation layer in step S5 is as follows:

[0011] S5-1. When the waterproof isolation layer currently used for water and electricity pipelines fails, recover and scan the failed waterproof isolation layer, establish an ultrasonic scanning image of the waterproof isolation layer, and analyze its easy-to-leak locations.

[0012] S5-2. Before molding the new waterproof isolation layer, match the specific water and electricity pipelines to be applied and bring in the ultrasonic scanning image of the waterproof isolation layer of the water and electricity pipeline failure.

[0013] S5-3. The wall thickness is automatically adjusted according to the design scheme. The new waterproof isolation layer is optimized by adjusting the shape of the punch of the mold, reducing the probability of leakage first in the easily leaking position.

[0014] According to the above technical solution, the specific method for establishing the ultrasonic scanning image in step S5-1 is as follows: Before the waterproof isolation layer is used, it is scanned using an ultrasonic scanning unit to obtain an initial three-dimensional ultrasonic scanning image of the waterproof isolation layer, which is then stored in the database. A rough model of the water and electricity pipelines is also imported to accurately represent the installation position of the waterproof isolation layer. The entire waterproof isolation layer is scanned using an ultrasonic scanning unit, and a three-dimensional ultrasonic scanning image of the failed waterproof isolation layer is established. The three-dimensional ultrasonic scanning image is compared with the initial three-dimensional ultrasonic scanning image of the waterproof isolation layer, and the areas prone to leakage are marked and the size of the area prone to leakage is calculated.

[0015] According to the above technical solution, the specific method for automatically adjusting the wall thickness in step S5-3 is as follows: First, determine the size and initial thickness ratio of the waterproof isolation layer. The initial wall thickness distribution is average. Then, input the ultrasonic scanning image of the current failed waterproof isolation layer of the water and electricity pipeline, mark the waterproof isolation layers with different degrees of leakage, and update the wall thickness distribution. Adjust the thickness according to the sealing requirements: When the material matrix begins to be pressed and the thickness distribution is relatively stable, adjust the thickness according to the sealing requirements.

[0016] According to the above technical solution, in step S5-3, the sealing requirements include: the changing trend of the ultrasonic scanning image of the waterproof isolation layer for water and electricity pipeline failure, by calculating the change of the area of ​​the easily leaking location of the waterproof isolation layer for water and electricity pipeline failure in different periods as the usage and replacement process changes, it is determined whether the area of ​​the easily leaking location is shrinking or still expanding. If it is shrinking, it means that the wall thickness needs to be continued; if it is still expanding, the wall thickness needs to be increased.

[0017] According to the above technical solution, the specific methods for increasing and decreasing the wall thickness of the waterproof isolation layer in step S5-3 are as follows:

[0018] , ;

[0019] ;

[0020] In the formula This refers to the wall thickness that a potentially leak-prone area in the initial waterproofing layer currently being designed. The historical wall thickness of this leak-prone area, representing the last failed waterproofing layer. The area of ​​this leak-prone zone is the last area where the waterproof barrier layer failed. This refers to the area of ​​the second-to-last failed waterproof barrier layer in this leak-prone area. The coefficient representing the influence of the changing trend of areas prone to leakage is a constant.

[0021] According to the above technical solution, in step S5-3, the waterproof isolation layer forming mold is used to adjust the shape of the punch of the mold. The forming mold includes a mold base, and a punch is rotatably installed on the inner wall of the middle part of the mold base. One end of the punch is connected to an external torque. Multiple split-type dies are slidably arranged in a ring on the inner wall of the mold base, and a connecting component is provided between each of the split-type dies.

[0022] The working method of the molding die is as follows: the molding material of the waterproof isolation layer is placed between the split concave mold and the convex mold, and then the position of each split concave mold is adjusted according to the location of easy leakage and the wall thickness that the easy leakage area should have, so that the wall thickness of the initial waterproof isolation layer being designed is adjusted. Then, the finished products after molding are joined together and fused into a whole waterproof isolation layer.

[0023] According to the above technical solution, the connecting assembly includes a pin, with multiple telescopic sleeves rotatably mounted on both sides of the pin. One end of each telescopic sleeve is hinged to a split-type die. An adjusting screw is rotatably mounted on the split-type die via a bearing. Threaded holes are evenly distributed on the inner wall of the die base, and these threaded holes are threadedly connected to the adjusting screw.

[0024] Compared with the prior art, the beneficial effects achieved by the present invention are: by designing the waterproof sealing layer separately, the present invention thickens the parts that frequently leak water, preventing the waterproof isolation layer in some places from being damaged first due to factors such as large leakage and high water pressure. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram illustrating the working principle of the mold of the present invention;

[0027] Figure 2 This is a schematic diagram of the split-type concave mold connection of the present invention;

[0028] Figure 3 This is a schematic diagram of the easily leaking area of ​​the waterproof isolation layer of the present invention;

[0029] In the diagram: 1. Punch; 2. Die base; 3. Split die; 4. Connecting assembly; 41. Adjusting screw; 42. Pin; 43. Multi-section telescopic sleeve. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-3 The present invention provides a technical solution: a prefabricated construction method for water and electricity pipelines in floor slabs, comprising the following steps:

[0032] S1. Design Phase: Determine the route and connection points of water and electricity pipelines based on architectural design drawings, and formulate construction plans and schedules.

[0033] S2. Material preparation: Prefabricate water and electricity pipes and distribution boxes, including elbows, tees, and crosses, ensuring that the dimensions and specifications meet the design requirements;

[0034] S3. Site preparation: Mark the location of water and electricity pipes on the floor slab and excavate the pipe installation location;

[0035] S4. Pipeline installation: Arrange and connect according to design requirements, assemble prefabricated pipes and distribution boxes, connect them using special tools, and connect them to power and water sources;

[0036] S5. Sealing treatment: Seal the pipe connection points and interfaces, and install a waterproof isolation layer at the intersection of water pipes and electrical wires to ensure no water leakage and no electrical leakage.

[0037] In step S5 above, the specific method for setting the waterproof isolation layer is as follows:

[0038] S5-1. When the waterproof isolation layer currently used for water and electricity pipelines fails, recover and scan the failed waterproof isolation layer, establish an ultrasonic scanning image of the waterproof isolation layer, and analyze its easy-to-leak locations.

[0039] S5-2. Before molding the new waterproof isolation layer, match the specific water and electricity pipelines to be applied and bring in the ultrasonic scanning image of the waterproof isolation layer of the water and electricity pipeline failure.

[0040] S5-3. The wall thickness is automatically adjusted according to the design scheme. The new waterproof isolation layer is optimized by adjusting the shape of the punch of the mold, reducing the probability of leakage first at the easily leaking position.

[0041] In step S5-1 above, the specific method for establishing the ultrasonic scanning image is as follows: Before using the waterproof isolation layer, it is scanned using an ultrasonic scanning unit to obtain an initial three-dimensional ultrasonic scanning image of the waterproof isolation layer, which is then saved in the database. A rough model of the water and electricity pipelines is also imported to accurately represent the installation position of the waterproof isolation layer. The entire waterproof isolation layer is scanned using an ultrasonic scanning unit, and a three-dimensional ultrasonic scanning image of the failed waterproof isolation layer is established. The three-dimensional ultrasonic scanning image is compared with the initial three-dimensional ultrasonic scanning image of the waterproof isolation layer, and the areas prone to leakage are marked and the size of the area prone to leakage is calculated.

[0042] In step S5-3 above, the specific method for automatically adjusting the wall thickness is as follows: First, determine the size and initial thickness ratio of the waterproof isolation layer. The initial wall thickness distribution is average. Then, input the ultrasonic scanning image of the failed waterproof isolation layer of the current water and electricity pipeline, mark the waterproof isolation layers with different degrees of leakage, and update the wall thickness distribution. Adjust the thickness according to the sealing requirements: When the material matrix begins to be pressed and the thickness distribution is relatively stable, adjust the thickness according to the sealing requirements.

[0043] In step S5-3 above, the sealing requirements include: the changing trend of the ultrasonic scanning image of the waterproof isolation layer for water and electricity pipeline failure; by calculating the change of the area of ​​the easily leaking location of the waterproof isolation layer for water and electricity pipeline failure during the use and replacement process at different times, it is determined whether the area of ​​the easily leaking location is shrinking or still expanding. If it is shrinking, it means that the wall thickness needs to be continued; if it is still expanding, the wall thickness needs to be increased.

[0044] In step S5-3 above, the specific methods for increasing and decreasing the wall thickness of the waterproof isolation layer are as follows:

[0045] , ;

[0046] ;

[0047] In the formula This refers to the wall thickness that a potentially leak-prone area in the initial waterproofing layer currently being designed. The historical wall thickness of this leak-prone area, representing the last failed waterproofing layer. The area of ​​this leak-prone zone is the last area where the waterproof barrier layer failed. This refers to the area of ​​the second-to-last failed waterproof barrier layer in this leak-prone area. The coefficient representing the influence of the changing trend of areas prone to leakage is a constant.

[0048] In step S5-3 above, the shape adjustment of the punch of the mold is carried out by a waterproof isolation layer forming mold. The forming mold includes a mold base 2. The punch 1 is rotatably installed on the inner wall of the middle part of the mold base 2. One end of the punch 1 is connected to the external torque. Multiple split-type dies 3 are slidably arranged in a ring on the inner wall of the mold base 2. A connecting component 4 is provided between each split-type die 3.

[0049] The working method of the molding die is as follows: the molding material of the waterproof isolation layer is placed between the split concave mold 3 and the convex mold 1, and then the position of each split concave mold 3 is adjusted according to the location of easy leakage and the wall thickness that the easy leakage area should have, so that the wall thickness of the initial waterproof isolation layer currently being designed is adjusted. Then, the finished products after molding are joined together and fused into a whole waterproof isolation layer.

[0050] The connecting component 4 includes a pin 42, and multiple telescopic sleeves 43 are rotatably mounted on both sides of the pin 42. One end of the multiple telescopic sleeves 43 is hinged to the split die 3. An adjusting screw 41 is rotatably mounted on the split die 3 through a bearing. The inner wall of the mold base 2 is evenly provided with screw holes, and the screw holes are threadedly connected to the adjusting screw 41.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated construction method for water and electricity pipelines in floor slabs, characterized in that: Includes the following steps: S1. Design Phase: Determine the route and connection points of water and electricity pipelines based on architectural design drawings, and formulate construction plans and schedules. S2. Material preparation: Prefabricate water and electricity pipes and distribution boxes, including elbows, tees, and crosses, ensuring that the dimensions and specifications meet the design requirements; S3. Site preparation: Mark the location of water and electricity pipes on the floor slab and excavate the pipe installation location; S4. Pipeline installation: Arrange and connect according to design requirements, assemble prefabricated pipes and distribution boxes, connect them using special tools, and connect them to power and water sources; S5. Sealing treatment: Seal the pipe connection points and interfaces, and install a waterproof isolation layer at the intersection of water pipes and electrical wires to ensure no water leakage and no electrical leakage. In step S5 above, the specific method for setting the waterproof isolation layer is as follows: S5-1. When the waterproof isolation layer currently used for water and electricity pipelines fails, recover and scan the failed waterproof isolation layer, establish an ultrasonic scanning image of the waterproof isolation layer, and analyze its easy-to-leak locations. S5-2. Before molding the new waterproof isolation layer, match the specific water and electricity pipelines to be applied and bring in the ultrasonic scanning image of the waterproof isolation layer of the water and electricity pipeline failure. S5-3. The wall thickness is automatically adjusted according to the design scheme. The new waterproof isolation layer is optimized by adjusting the shape of the punch of the mold, reducing the probability of leakage first in the easily leaking position.

2. The prefabricated construction method for water and electricity pipelines in floor slabs according to claim 1, characterized in that: In step S5-1 above, the specific method for establishing the ultrasonic scanning image is as follows: Before using the waterproof isolation layer, it is scanned using an ultrasonic scanning unit to obtain an initial three-dimensional ultrasonic scanning image of the waterproof isolation layer, which is then saved in the database. A rough model of the water and electricity pipelines is also imported to accurately represent the installation position of the waterproof isolation layer. The entire waterproof isolation layer is scanned using an ultrasonic scanning unit, and a three-dimensional ultrasonic scanning image of the failed waterproof isolation layer is established. The three-dimensional ultrasonic scanning image is compared with the initial three-dimensional ultrasonic scanning image of the waterproof isolation layer, and the areas prone to leakage are marked and the size of the area prone to leakage is calculated.

3. The prefabricated construction method for water and electricity pipelines in floor slabs according to claim 2, characterized in that: In step S5-3 above, the specific method for automatically adjusting the wall thickness is as follows: First, determine the size and initial thickness ratio of the waterproof isolation layer. The initial wall thickness distribution is average. Then, import the ultrasonic scanning image of the current failed waterproof isolation layer of the water and electricity pipeline, mark the waterproof isolation layers with different degrees of leakage, and update the wall thickness distribution. Adjust the thickness according to the sealing requirements: When the material matrix begins to be pressed and the thickness distribution is relatively stable, adjust the thickness according to the sealing requirements.

4. The prefabricated construction method for water and electricity pipelines in floor slabs according to claim 3, characterized in that: In step S5-3 above, the sealing requirements include: the changing trend of the ultrasonic scanning image of the waterproof isolation layer for water and electricity pipeline failure; by calculating the change of the area of ​​the easily leaking location of the waterproof isolation layer for water and electricity pipeline failure during the use and replacement process at different times, it is determined whether the area of ​​the easily leaking location is shrinking or still expanding. If it is shrinking, it means that the wall thickness needs to be continued; if it is still expanding, the wall thickness needs to be increased.

5. The prefabricated construction method for water and electricity pipelines in floor slabs according to claim 4, characterized in that: In step S5-3 above, the specific methods for increasing and decreasing the wall thickness of the waterproof isolation layer are as follows: , ; ; In the formula This refers to the wall thickness that a potentially leak-prone area in the initial waterproofing layer currently being designed. The historical wall thickness of this leak-prone area, representing the last failed waterproofing layer. The area of ​​this leak-prone zone is the last area where the waterproof barrier layer failed. This refers to the area of ​​the second-to-last failed waterproof barrier layer in this leak-prone area. The coefficient representing the influence of the changing trend of areas prone to leakage is a constant.

6. The prefabricated construction method for water and electricity pipelines in floor slabs according to claim 5, characterized in that: In step S5-3 above, the shape adjustment of the punch of the mold is carried out by a waterproof isolation layer forming mold. The forming mold includes a mold base (2). The punch (1) is installed on the inner wall of the middle part of the mold base (2) by rotation. One end of the punch (1) is connected to the external torque. Multiple split-type dies (3) are slidably arranged in a ring on the inner wall of the mold base (2). A connecting component (4) is provided between each of the split-type dies (3). The working method of the molding die is as follows: the molding material of the waterproof isolation layer is placed between the split concave die (3) and the convex die (1), and then the position of each split concave die (3) is adjusted according to the location of easy leakage and the wall thickness that the easy leakage area should have, so that the wall thickness of the initial waterproof isolation layer currently being designed is adjusted. Then, the finished products after molding are connected and fused together to form a whole waterproof isolation layer.

7. The prefabricated construction method for water and electricity pipelines in floor slabs according to claim 6, characterized in that: The connecting component (4) includes a pin (42), and multiple telescopic sleeves (43) are rotatably installed on both sides of the pin (42). One end of the multiple telescopic sleeves (43) is hinged to the split die (3). An adjusting screw (41) is rotatably installed on the split die (3) through a bearing. The inner wall of the mold base (2) is evenly provided with screw holes, and the screw holes are threadedly connected to the adjusting screw (41).

Citation Information

Patent Citations

  • Novel water pipe laying method

    CN111075991A