A method to improve the seepage prevention performance of through-wall sleeves

Abstract

This invention discloses a method for improving the seepage prevention performance of wall sleeves, comprising the following steps: installing the wall sleeve during the reinforcement binding of the concrete shear wall; pouring the shear wall concrete; removing the formwork after the concrete pouring is completed; constructing the pipeline through the wall; and sealing the gaps between the two ends of the wall sleeve and the pipeline. This construction method prevents outdoor groundwater or rainwater from seeping into the wall sleeve and the interior of the building, thereby ensuring the waterproof performance of the building.

Description

Technical Field

[0001] This invention relates to the field of civil engineering, and in particular to a method for improving the seepage prevention performance of through-wall sleeves. Background Technology

[0002] With economic and technological development, accelerated urbanization, and economic growth, the scale of housing construction projects is constantly expanding, and the development of building equipment is rapidly evolving, resulting in a wide variety of products. The number and types of electrical conduits are also increasing, and these conduits often pass through the interior and exterior walls of buildings (above ground and underground). Therefore, solving the leakage problem of through-wall sleeves, ensuring the safety and stability of projects, improving the sealing and seepage prevention performance of various conduits passing through building walls, and guaranteeing the structural safety of buildings and the efficient and safe use of building equipment are urgent challenges that need to be addressed.

[0003] For pipe sleeve waterproofing applicable to various building equipment pipelines penetrating the interior and exterior walls of building structures, the traditional construction process is as follows: wall reinforcement binding → pipe sleeve positioning and installation → formwork installation → wall concrete pouring → pipeline sleeve installation → sleeve sealing. Under this construction process, because the sleeve connects the inside and outside of the wall, it is difficult to avoid some common quality defects due to the influence of the construction environment and the subsequent pipeline maintenance requirements.

[0004] (1) Affected by groundwater, the sealing effect of the gaps between the pipes connecting the indoor and outdoor walls gradually weakens over time, and outdoor groundwater or rainwater and other liquids penetrate into the pipes and the interior of the building, thereby affecting the waterproof performance of the building.

[0005] (2) When the pipes passing through the wall are maintained, replaced or added in the later stage, the protected pipes are often damaged when passing through the wall, floor and other structures due to vibration or external force, and the waterproof and seepage prevention performance of the sleeve is frequently damaged.

[0006] (3) Small animals such as rats and ants often enter the pipes through the wall sleeves and damage the pipes, causing communication and power outages and equipment failures.

[0007] When the above-mentioned common quality defects occur, it is often necessary to stop production for repairs, which greatly affects equipment safety and production efficiency. Therefore, in response to the above situation, the construction process of through-wall sleeves has been adjusted, and a construction method to improve the seepage prevention performance of through-wall sleeves has been invented to solve this problem. Summary of the Invention

[0008] This invention provides a method for improving the seepage prevention performance of wall sleeves, which can effectively improve the sealing and seepage prevention performance of various pipelines when they pass through building walls.

[0009] This invention provides a method for improving the seepage prevention performance of wall sleeves, comprising the following steps: installing the wall sleeve during the reinforcement binding of the concrete shear wall; pouring the shear wall concrete; removing the formwork after the concrete pouring is completed; constructing the pipeline through the wall; and sealing the gaps between the two ends of the wall sleeve and the pipeline.

[0010] In some embodiments, flanges are installed at both ends of the through-wall sleeve before installation. During the through-wall construction, the pipeline passes through the sealing rings and sleeve pressure rings on both sides of the through-wall sleeve, and the pipeline is pressed tightly against the sealing rings. Bolts are used to press the sealing rings between the sleeve pressure rings and flanges.

[0011] In some embodiments, after the formwork is removed, the seepage prevention performance of the through-wall sleeve and the shear wall concrete structure is checked. If leakage occurs in the shear wall concrete structure, seepage prevention and plugging treatment is carried out. If no leakage occurs in the shear wall concrete structure, the pipeline through-wall construction is carried out.

[0012] In some embodiments, when the through-wall sleeve is used in a waterless or low water pressure environment, after sealing the gaps between the two ends of the through-wall sleeve and the pipeline, check whether there is water seepage inside the through-wall sleeve. If there is water seepage inside the through-wall sleeve, grouting sealant is used to inject grout into the inside of the through-wall sleeve. If there is no water seepage inside the through-wall sleeve, the construction is completed.

[0013] In some embodiments, when the through-wall sleeve is used in a high water pressure environment, after sealing the gaps between the two ends of the through-wall sleeve and the pipeline, grouting sealing material is used to inject grout into the inside of the through-wall sleeve.

[0014] In some embodiments, when grouting is applied to the inside of the through-wall sleeve using grouting sealant, grouting is performed through the grouting hole on the lower side of the through-wall sleeve. After the grouting sealant flows out of the vent hole on the upper side of the through-wall sleeve, grouting is stopped and the sleeve is sealed.

[0015] In some embodiments, after grouting is injected into the inside of the wall sleeve using grouting sealant, the grouting sealant is allowed to set. Then, the seepage prevention performance of the wall sleeve is checked. If leakage occurs in the wall sleeve, secondary grouting is performed inside the wall sleeve. The above steps are repeated until there is no leakage in the wall sleeve. If there is no leakage in the wall sleeve, the construction is completed.

[0016] In some embodiments, before installing flanges at both ends of the through-wall sleeve, the specifications of the through-wall sleeve, the size of the sealing ring, the size of the sleeve pressure ring, and the size of the flange are determined according to the parameters of the pipeline.

[0017] In some embodiments, when the shear wall concrete is poured, a vibrator is used to vibrate the concrete around the through-wall sleeve.

[0018] In some embodiments, before the shear wall concrete is poured, the water-stop ring in the middle of the through-wall sleeve is located in the middle of the shear wall structure.

[0019] A method for improving the seepage prevention performance of wall sleeves according to an embodiment of the present invention includes the following steps: installing the wall sleeve during the reinforcement binding of the concrete shear wall; pouring the shear wall concrete; removing the formwork after the concrete pouring is completed; constructing the pipeline through the wall; and sealing the gaps between the two ends of the wall sleeve and the pipeline. This construction method of the present invention prevents outdoor groundwater or rainwater from seeping into the wall sleeve and the interior of the building, thereby ensuring the waterproof performance of the building. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the novel pre-embedded anti-seepage through-wall sleeve device and the shear wall concrete structure in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the novel pre-embedded anti-seepage through-wall sleeve device in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] See Figure 1-2 The present invention provides a method for improving the seepage prevention performance of wall sleeves, comprising the following steps:

[0025] (1) Based on the parameters of pipeline 7, determine the specifications of wall sleeve 1, the size of sealing ring 3, the size of sleeve pressure ring 4, and the size of flange 2.

[0026] The parameters of pipeline 7 include its dimensions and diameter. The size of the sealing ring 3 should preferably be slightly smaller than the diameter of pipeline 7 by 0.5 mm. The above components are cut and processed according to the dimensions specified in the national standard drawing set 02S404. These components are mass-produced by drawing processing drawings of the new type of pre-embedded anti-seepage through-wall sleeve 1 device, consisting of the through-wall sleeve 1, sealing ring 3, sleeve pressure ring 4, and flange 2.

[0027] (2) Install flanges 2 at both ends of the through-wall sleeve 1.

[0028] Flange 2 and through-wall sleeve 1 are coaxially arranged. Flange 2 and through-wall sleeve 1 are fully welded, and the weld joint is confirmed to be leak-proof.

[0029] (3) Install through-wall sleeve 1 when binding the reinforcement of the concrete shear wall.

[0030] When installing the through-wall sleeve 1, ensure its positioning is accurate and securely fixed to prevent misalignment during concrete vibration. The water-stop ring 11 in the middle of the through-wall sleeve 1 is located in the middle of the shear wall structure.

[0031] (4) Pour the concrete for the shear wall. After the concrete for the shear wall is poured, remove the formwork.

[0032] The concrete around the through-wall sleeve 1 is compacted using a vibrator to ensure it is dense. A small-diameter vibrator is used. The water-stop ring 11 in the middle of the through-wall sleeve 1 is tightly bonded to the structural concrete to prevent leakage.

[0033] After removing the formwork, inspect the seepage prevention performance of the through-wall sleeve 1 and the shear wall concrete structure 6. If leakage occurs in the shear wall concrete structure 6, carry out seepage prevention and plugging treatment. If no leakage occurs in the shear wall concrete structure 6, proceed with the through-wall construction of pipeline 7. The seepage prevention performance of the through-wall sleeve 1 and the shear wall concrete structure 6 is checked using a water spray test method.

[0034] (5) Carry out the wall penetration construction of pipeline 7.

[0035] In this design, pipeline 7 passes through the sealing rings 3 and sleeve pressure rings 4 on both sides of the wall sleeve 1. That is, pipeline 7 passes through the sealing rings 3 and sleeve pressure rings 4 before and after entering the wall sleeve 1. The sealing rings 3 are elastic rubber sealing rings. Pipeline 7 is pressed tightly against the sealing rings 3. The size of the sealing rings 3 should preferably be slightly smaller than the diameter of pipeline 7 by 0.5 mm to ensure a tight fit between pipeline 7 and the sealing rings 3.

[0036] (6) Seal the gap between the two ends of the through-wall sleeve 1 and the pipeline 7.

[0037] The sealing ring 3 is pressed between the sleeve pressure ring 4 and the flange 2 using bolts 5. Bolts 5 are hexagonal bolts. Bolts 5 are tightened symmetrically and evenly to ensure a good seal.

[0038] When the through-wall sleeve 1 is used in a waterless or low-water-pressure environment, after sealing the gaps between both ends of the through-wall sleeve 1 and the pipeline 7, check whether there is water leakage inside the through-wall sleeve 1. If water leakage occurs, grouting sealant is used to inject grout into the inside of the through-wall sleeve 1. If no water leakage occurs, the construction is complete. When the through-wall sleeve 1 is used in a high-water-pressure environment, after sealing the gaps between both ends of the through-wall sleeve 1 and the pipeline 7, grouting sealant is used to inject grout into the inside of the through-wall sleeve 1. Grouting is specifically pressure grouting. The type of grouting sealant is selected according to the application.

[0039] When grouting the inside of the through-wall sleeve 1 with grouting sealant, grouting is performed through the grouting hole 12 on the lower side of the through-wall sleeve 1. After a stable amount of grouting sealant flows out of the vent hole 13 on the upper side of the through-wall sleeve 1, grouting is stopped and the sleeve is sealed.

[0040] After grouting the inside of the through-wall sleeve 1 with grouting sealant, the grouting sealant will eventually set. Then, check the seepage prevention performance of the through-wall sleeve 1. If leakage occurs in the through-wall sleeve 1, perform secondary grouting inside the through-wall sleeve 1 and repeat the above steps until there is no leakage in the through-wall sleeve 1. If there is no leakage in the through-wall sleeve 1, the construction is complete.

[0041] (7) Replacement and subsequent maintenance of pipeline 7

[0042] By determining the location of pipeline 7 in the wall sleeve 1, we can protect pipeline 7 and achieve its subsequent maintenance.

[0043] By disassembling the sleeve pressure ring 4 and the sealing ring 3, removing the pipeline 7 and the external grouting sealing material, and using the new pipeline 7 and the matching new sealing ring 3, the above steps (5)-(6) are performed to complete the replacement of the pipeline 7.

[0044] During the construction of pipe 7 penetrating walls, quality problems such as water seepage, damage to pipe 7, and inadequate sealing often occur. Especially under the influence of groundwater, pipe 7 penetrating external walls suffers from groundwater pressure, soil settlement, and vibration and displacement caused by pipe 7 installation, leading to inadequate sealing of the sleeve and potential leakage, thus failing to effectively guarantee the overall waterproof performance of the building. To solve these problems, embodiments of the present invention provide a construction method to improve the seepage prevention performance of wall-penetrating sleeves, effectively avoiding the aforementioned quality problems and facilitating subsequent updates and maintenance of building equipment pipelines 7. The construction method of the present invention prevents outdoor groundwater or rainwater from seeping into the wall-penetrating sleeve 1 and the interior of the building, thereby ensuring the waterproof performance of the building; and protects pipe 7 from damage when penetrating walls, floors, and other structures, especially under vibration or external forces, preventing the wall-penetrating sleeve 1 from being crushed or broken, and preventing small animals such as rodents and ants from entering the wall-penetrating sleeve 1 and damaging the pipe 7. The construction method of the present invention is applicable to different environments and application needs, is convenient to construct and maintain, and can be widely promoted and used.

[0045] In summary, the construction method of the present invention has the following advantages / positive effects compared with the traditional through-wall sleeve construction method:

[0046] 1. Traditional wall sleeve construction often requires sealing the gap between the sleeve and the pipe after the pipe 7 passes through the wall. This construction method makes it difficult to guarantee the sealing quality and the uniformity of the sealing material, which can lead to the penetration of outdoor groundwater or rainwater into the sleeve and the interior of the building, affecting the waterproof performance of the building. The construction method of the present invention can avoid the above-mentioned common quality problems.

[0047] 2. In traditional construction, there are no sealing measures at both ends of the wall sleeve 1. Small animals such as rats and ants can enter the wall sleeve 1 and damage the pipeline 7, causing communication and power outages and equipment failures. The construction method of the present invention can effectively prevent the above situations from occurring by adding flanges 2 and sealing rings 3 to both sides of the wall sleeve 1.

[0048] 3. In the process of traditional pipeline 7 passing through the wall, pipeline 7 is easily damaged when passing through the wall, floor and other structures, especially under vibration or external force. The wall sleeve 1 is easily crushed, deformed or broken. The construction method of the present invention uses grouting to protect pipeline 7 after it passes through the wall to avoid damage to pipeline 7.

[0049] 4. The construction method of the present invention has a wide range of applications. It can be applied to the construction of pipeline 7 penetrating the inner wall and the outer wall in the absence of water or low pressure water environment. In this case, no grouting is required. It can also be applied to the construction of pipeline 7 penetrating the wall in the high pressure groundwater environment. In this case, pressure grouting and secondary grouting are required.

[0050] 5. The construction method of the present invention can be used for the later replacement and maintenance of pipeline 7. The sleeve pressure ring 4 and sealing ring 3 are detachable to realize the replacement of pipeline 7 and can also be reused to realize repeated sealing between pipeline 7 and wall sleeve 1, and the operation is simple.

[0051] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of improving the impermeability of a bushing, characterized in that, Includes the following steps: Install through-wall sleeves when tying the reinforcing bars of concrete shear walls; The shear wall concrete is poured, and the formwork is removed after the shear wall concrete is poured. Perform wall penetration construction for pipelines; Seal the gaps between the two ends of the through-wall sleeve and the pipeline; Before installing the through-wall sleeve, flanges are installed at both ends of the through-wall sleeve; When constructing a pipeline through a wall, the pipeline passes through the sealing rings and sleeve pressure rings on both sides of the through-wall sleeve, and the pipeline is pressed tightly against the sealing rings. Bolts are used to press the sealing rings between the sleeve pressure rings and the flange. When the through-wall sleeve is used in a waterless or low water pressure environment, after sealing the gaps between the two ends of the through-wall sleeve and the pipeline, check whether there is water seepage inside the through-wall sleeve. If there is water seepage inside the through-wall sleeve, use grouting sealant to inject grout into the inside of the through-wall sleeve. If there is no water seepage inside the through-wall sleeve, the construction is completed. When the through-wall sleeve is used in a high water pressure environment, after sealing the gaps between the two ends of the through-wall sleeve and the pipeline, grouting sealing material is used to inject grout into the inside of the through-wall sleeve.

2. The method for improving the seepage prevention performance of through-wall sleeves as described in claim 1, characterized in that, After removing the formwork, check the seepage prevention performance of the through-wall sleeve and the shear wall concrete structure. If the shear wall concrete structure leaks, carry out seepage prevention and plugging treatment. If the shear wall concrete structure does not leak, carry out the pipeline through-wall construction.

3. The method for improving the seepage prevention performance of wall sleeves as described in claim 1, characterized in that, When grouting the inside of the through-wall sleeve with grouting sealant, grouting is performed through the grouting hole on the lower side of the through-wall sleeve. After the grouting sealant flows out of the vent hole on the upper side of the through-wall sleeve, grouting is stopped and the vent is sealed.

4. The method for improving the seepage prevention performance of through-wall sleeves as described in claim 1, characterized in that, After grouting the inside of the wall sleeve with grouting sealant, the grouting sealant will eventually set. Then, check the seepage prevention performance of the wall sleeve. If leakage occurs, perform secondary grouting inside the wall sleeve and repeat the above steps until the wall sleeve no longer leaks. If no leakage occurs, the construction is complete.

5. The method for improving the seepage prevention performance of wall sleeves as described in claim 1, characterized in that, Before installing flanges at both ends of the through-wall sleeve, determine the specifications of the through-wall sleeve, the size of the sealing ring, the size of the sleeve pressure ring, and the size of the flange based on the pipeline parameters.

6. The method for improving the seepage prevention performance of wall sleeves as described in claim 1, characterized in that, When pouring concrete for the shear wall, a vibrator is used to vibrate and compact the concrete around the through-wall sleeve.

7. The method for improving the seepage prevention performance of wall sleeves as described in claim 1, characterized in that, Before the concrete is poured into the shear wall, the water-stop ring in the middle of the through-wall sleeve is located in the middle of the shear wall structure.

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