Method for improving anti-seepage performance of wall bushing

Abstract

The invention discloses a method for improving the anti-seepage performance of a wall bushing. The method comprises the following steps that the wall bushing is installed when steel bars of a concrete shear wall are bound. And shear wall concrete pouring is conducted, and after shear wall concrete pouring is completed, the formwork is dismantled. And through-wall construction of the pipeline is conducted. And gaps between the two ends of the wall bushing and the pipeline are sealed. By means of the construction method, liquid such as outdoor underground water or rainwater is prevented from permeating into the wall bushing and the interior of the building, and therefore the waterproof performance of the building is ensured.

Description

Technical Field

[0001] The invention relates to the field of civil engineering, and in particular to a method for improving the anti-seepage performance of a wall casing. Background Art

[0002] With the development of economy and technology, the acceleration of urbanization and economic development, the scale of housing construction projects has continued to expand, the development of construction equipment has changed with each passing day, and the types are various. The number and types of various electrical pipelines are becoming more and more complex. The pipelines of various construction engineering equipment often pass through the inner and outer walls of the building (above ground and underground) structure. Therefore, solving the leakage problem of wall sleeves, ensuring the safety and stability of the project, improving the sealing performance and anti-seepage performance of various pipelines when passing through the building walls, and ensuring the safety of building structures and the efficient and safe use of construction engineering equipment are currently a major problem that needs to be solved urgently.

[0003] For casing anti-seepage for various types of construction equipment pipelines passing through the inner and outer walls of building structures, the traditional construction process is wall reinforcement binding → wall casing positioning, installation and fixation → formwork installation → wall concrete pouring → pipeline casing construction → casing sealing and plugging. Under this construction process, since the casing connects the inside and outside of the wall, it is difficult to avoid some common quality problems due to the influence of the construction environment and the requirements for pipeline maintenance in the later stage:

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

[0005] (2) When wall-penetrating pipelines are maintained, replaced, or additional pipelines are required, vibration or external force often causes damage to the protected pipelines when they pass through walls, floors, and other structures, and the waterproof and anti-seepage properties of the casing are frequently damaged;

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

[0007] When the above quality problems occur, it is often necessary to stop production for repair, which greatly affects equipment safety and production efficiency. Therefore, in view of the above situation, the construction process of the wall sleeve is adjusted, and a construction method for improving the anti-seepage performance of the wall sleeve is invented to solve this problem. Summary of the invention

[0008] The invention provides a method for improving the anti-seepage performance of a wall-penetrating casing, which can effectively improve the sealing performance and anti-seepage performance of various pipelines when they pass through building walls.

[0009] The embodiment of the present invention provides a method for improving the anti-seepage performance of a wall sleeve, comprising the following steps: installing the wall sleeve when tying the steel bars of a concrete shear wall; pouring the shear wall concrete, and after the shear wall concrete pouring is completed, removing the formwork; performing the wall penetration construction of the pipeline; and sealing the gap between the two ends of the wall sleeve and the pipeline.

[0010] In some embodiments, flanges are installed at both ends of the wall sleeve before installing the wall sleeve. When the pipeline is installed through the wall, the pipeline is inserted into the sealing rings and sleeve pressure rings on both sides of the wall sleeve, the pipeline and the sealing ring are pressed tightly, and the sealing ring is pressed between the sleeve pressure ring and the flange with bolts.

[0011] In some of the embodiments, after removing the formwork, the anti-seepage performance of the wall sleeve and the shear wall concrete structure is checked. If leakage occurs in the shear wall concrete structure, anti-seepage and plugging treatment is performed. If no leakage occurs in the shear wall concrete structure, wall penetration construction of the pipeline is performed.

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

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

[0014] In some of the embodiments, when grouting sealing material is used to grout the inside of the wall sleeve, grouting is performed through the grouting holes on the lower side of the wall sleeve. After the grouting sealing material flows out of the exhaust holes on the upper side of the wall sleeve, the grouting is stopped and the wall sleeve is sealed.

[0015] In some of the embodiments, after grouting the interior of the wall sleeve with a grouting sealing material, the grouting sealing material is finally set, and then the anti-seepage performance of the wall sleeve is checked. If the wall sleeve leaks, a second grouting is performed inside the wall sleeve, and the above steps are repeated until no leakage occurs in the wall sleeve. If no leakage occurs in the wall sleeve, the construction is completed.

[0016] In some of the embodiments, before installing flanges at both ends of the wall sleeve, the specifications of the 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 of the embodiments, when the shear wall concrete is poured, a vibrating rod is used to vibrate the concrete around the wall sleeve.

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

[0019] According to an embodiment of the present invention, a method for improving the anti-seepage performance of a wall sleeve is provided, comprising the following steps: installing the wall sleeve when tying the steel bars of a concrete shear wall. Casting the shear wall concrete, and after the shear wall concrete casting is completed, removing the formwork. Performing wall penetration construction of pipelines. Closing the gap between the two ends of the wall sleeve and the pipeline. The construction method of the present invention prevents outdoor groundwater or rainwater and other liquids from penetrating into the wall sleeve and the interior of the building, thereby ensuring the waterproof performance of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of 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 paying any creative work.

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

[0022] Figure 2 It is a schematic structural diagram of a novel pre-buried anti-seepage wall sleeve device in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] See also Figure 1-2 , an embodiment of the present invention provides a method for improving the anti-seepage performance of a wall sleeve, comprising the following steps:

[0025] (1) According to the parameters of the pipeline 7, the specifications of the wall bushing 1, the size of the sealing ring 3, the size of the bushing pressure ring 4, and the size of the flange 2 are determined.

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

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

[0028] The flange 2 is coaxially arranged with the wall bushing 1. The flange 2 and the wall bushing 1 are fully welded to confirm that the quality of the welding interface is watertight.

[0029] (3) When tying the reinforcement bars of the concrete shear wall, the wall sleeve 1 is installed.

[0030] When installing the wall sleeve 1, confirm the positioning of the wall sleeve 1 and fix it firmly to prevent the problem of displacement when vibrating the concrete. The water stop ring 11 in the middle of the wall sleeve 1 is located in the middle of the shear wall structure.

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

[0032] The concrete around the wall sleeve 1 is vibrated by a vibrating rod to ensure that the concrete around the pipe body is vibrated and compacted. The vibrating rod is a small diameter vibrating rod. The water stop ring 11 in the middle of the wall sleeve 1 is tightly combined with the structural concrete to prevent leakage.

[0033] After removing the formwork, check the anti-seepage performance of the wall sleeve 1 and the shear wall concrete structure 6. If the shear wall concrete structure 6 leaks, perform anti-seepage plugging treatment. If the shear wall concrete structure 6 does not leak, perform wall penetration construction of the pipeline 7. The anti-seepage performance of the wall sleeve 1 and the shear wall concrete structure 6 is checked by a water spray test method.

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

[0035] Among them, the pipeline 7 penetrates the sealing ring 3 and the casing pressing ring 4 on both sides of the wall bushing 1. That is to say, the pipeline 7 penetrates the sealing ring 3 and the casing pressing ring 4 respectively before and after penetrating the wall bushing 1. The sealing ring 3 is an elastic rubber sealing ring. The pipeline 7 is tightly pressed against the sealing ring 3. The size of the sealing ring 3 should be slightly smaller than the diameter of the pipeline 7 by 0.5 mm to ensure that the pipeline 7 and the sealing ring 3 are tightly combined.

[0036] (6) Close the gaps between the two ends of the wall bushing 1 and the pipeline 7.

[0037] The sealing ring 3 is compressed between the casing pressure ring 4 and the flange 2 by using bolts 5. The bolts 5 are hexagonal bolts. The bolts 5 are tightened symmetrically and evenly to ensure good sealing.

[0038] When the wall sleeve 1 is used in a waterless or low water pressure environment, after closing the gap between the two ends of the wall sleeve 1 and the pipeline 7, check whether there is water seepage inside the wall sleeve 1. If there is water seepage inside the wall sleeve 1, use grouting sealing material to inject grout into the wall sleeve 1. If there is no water seepage inside the wall sleeve 1, the construction is completed. When the wall sleeve 1 is used in a high water pressure environment, after closing the gap between the two ends of the wall sleeve 1 and the pipeline 7, use grouting sealing material to inject grout into the wall sleeve 1. Grouting is specifically pressure grouting. The type of grouting sealing material is selected according to the usage.

[0039] When grouting the wall sleeve 1 with grouting sealing material, grouting is performed through the grouting hole 12 on the lower side of the wall sleeve 1. After a stable amount of grouting sealing material flows out of the exhaust hole 13 on the upper side of the wall sleeve 1, grouting is stopped and plugging is performed.

[0040] After grouting the wall sleeve 1 with the grouting sealing material, the grouting sealing material is finally set, and then the anti-seepage performance of the wall sleeve 1 is checked. If the wall sleeve 1 leaks, a second grouting is performed inside the wall sleeve 1, and the above steps are repeated until there is no leakage in the wall sleeve 1. If there is no leakage in the wall sleeve 1, the construction is completed.

[0041] (7) Pipeline 7 replacement and subsequent maintenance

[0042] By determining the position of the wall bushing 1 where the pipeline 7 is located, the pipeline 7 is well protected and maintained, thereby achieving later maintenance of the pipeline 7 .

[0043] The replacement of pipeline 7 is completed by disassembling the casing compression ring 4 and the sealing ring 3, removing the pipeline 7 and the grouting sealing material wrapped on the outside, and using a new pipeline 7 and a matching new sealing ring 3 to perform the above steps (5)-(6).

[0044] In the construction of pipeline 7 through the wall, quality problems such as water seepage, pipeline 7 damage, and poor sealing often occur. In particular, the pipeline 7 that passes through the outer wall under the influence of groundwater is vibrated and displaced due to groundwater pressure, soil settlement, and pipeline 7 installation, resulting in poor casing sealing, leakage hazards, etc., and the overall good waterproof performance of the building cannot be effectively guaranteed. In order to solve the above problems, the embodiment of the present invention provides a construction method for improving the anti-seepage performance of the wall-penetrating casing, which can effectively avoid the above quality hazards and facilitate the subsequent update and maintenance of the building equipment pipeline 7. The construction method of the present invention prevents outdoor groundwater or rainwater and other liquids from penetrating into the wall-penetrating casing 1 and the interior of the building, thereby ensuring the waterproof performance of the building; and protects the pipeline 7 from being damaged when passing through structures such as walls and floor slabs, especially under the action of vibration or external force, it can prevent the wall-penetrating casing 1 from being crushed or broken, and prevent small objects such as rats and ants from entering the wall-penetrating casing 1 to damage the pipeline 7. The construction method of the present invention is suitable for different environments and application requirements, is convenient for construction and maintenance, and can be widely promoted and used.

[0045] In general, the construction method of the present invention has the following advantages / positive effects compared with the traditional wall bushing 1 construction method:

[0046] 1. In the construction of traditional wall-penetrating sleeve 1, it is often necessary to seal the gap between the sleeve and the pipeline 7 after the pipeline 7 is constructed through the wall. This construction method is difficult to ensure the sealing quality and the uniformity of the sealing material, which leads to the penetration of outdoor groundwater or rainwater and other liquids 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 quality problems.

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

[0048] 3. In the traditional process of pipeline 7 passing through walls, pipeline 7 is easily damaged when passing through walls, floors and other structures. Especially under the action of vibration or external force, the wall sleeve 1 is easily crushed, deformed or broken. The construction method of the present invention adopts grouting to protect pipeline 7 after pipeline 7 passes through the wall to prevent pipeline 7 from being damaged.

[0049] 4. The construction method of the present invention has a wide range of applications. It can be used for pipelines 7 to pass through inner walls and outer walls in waterless or low-pressure water environments. In this case, no grouting is required. It can also be used for pipelines 7 to pass through walls in high-pressure groundwater environments. 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 the pipeline 7. The casing pressure ring 4 and the sealing ring 3 are detachable to achieve the replacement of the pipeline 7. They can also be reused to achieve repeated sealing between the pipeline 7 and the wall casing 1, and the operation is simple.

[0051] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0052] The above description is only 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 in the protection scope of the present invention.

Claims

1. A method for improving the anti-seepage performance of a wall casing, characterized in that: The following steps are involved: Install wall sleeves when tying the reinforcement of concrete shear walls; Carry out shear wall concrete pouring. After the shear wall concrete pouring is completed, remove the formwork; Carry out wall penetration construction of pipelines; The gaps between the two ends of the wall sleeve and the pipeline are closed.

2. The method for improving the anti-seepage performance of a wall casing according to claim 1, characterized in that: Before installing the wall bushing, flanges are installed at both ends of the wall bushing; When the pipeline is penetrated through the wall, the pipeline is penetrated into the sealing rings and casing pressure rings on both sides of the wall-penetrating casing, the pipeline is pressed against the sealing rings, and the sealing rings are pressed between the casing pressure rings and the flange plate with bolts.

3. The method for improving the anti-seepage performance of a wall casing according to claim 1, characterized in that: After removing the formwork, check the anti-seepage performance of the wall sleeve and the shear wall concrete structure. If the shear wall concrete structure leaks, perform anti-seepage and plugging treatment. If the shear wall concrete structure does not leak, perform pipeline wall penetration construction.

4. The method for improving the anti-seepage performance of a wall casing according to claim 1, characterized in that: When the wall sleeve is used in a waterless or low water pressure environment, after sealing the gaps between the two ends of the wall sleeve and the pipeline, check whether water seepage occurs inside the wall sleeve. If water seepage occurs inside the wall sleeve, use grouting sealing material to inject grout into the wall sleeve. If no water seepage occurs inside the wall sleeve, the construction is completed.

5. The method for improving the anti-seepage performance of a wall casing according to claim 1, characterized in that: When the wall sleeve is used in a high water pressure environment, after the gaps between the two ends of the wall sleeve and the pipeline are closed, a grouting sealing material is used to inject grout into the interior of the wall sleeve.

6. The method for improving the anti-seepage performance of a wall casing according to claim 1, characterized in that: When grouting the wall sleeve with grouting sealing material, grouting is performed through the grouting holes on the lower side of the wall sleeve. After the grouting sealing material flows out of the exhaust holes on the upper side of the wall sleeve, grouting is stopped and sealing is performed.

7. The method for improving the anti-seepage performance of a wall casing according to claim 1, characterized in that: After grouting the inside of the wall sleeve with grouting sealing material, the grouting sealing material is finally set, and then the anti-seepage performance of the wall sleeve is checked. If the wall sleeve leaks, secondary grouting is performed inside the wall sleeve, and the above steps are repeated until the wall sleeve does not leak. If the wall sleeve does not leak, the construction is completed.

8. The method for improving the anti-seepage performance of a wall casing according to claim 2, characterized in that: Before installing flanges at both ends of the wall bushing, the specification of the wall bushing, the size of the sealing ring, the size of the bushing pressure ring, and the size of the flange are determined according to the parameters of the pipeline.

9. The method for improving the anti-seepage performance of a wall casing according to claim 1, characterized in that: When pouring the shear wall concrete, a vibrating rod is used to vibrate the concrete around the wall sleeve.

10. The method for improving the anti-seepage performance of a wall casing according to claim 1, characterized in that: Before pouring the shear wall concrete, the water stop ring in the middle of the wall sleeve is located in the middle of the shear wall structure.

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