Leakage-proof structure for post-trepanning of out-of-wall pipeline and construction method

Abstract

The invention provides a leakage-proof structure for post-trepanning of an out-of-wall pipeline and a construction method.The leakage-proof structure comprises a water stop sleeve and an anti-seepage encapsulation, the water stop sleeve penetrates through a wall, the end, close to the outer side of the wall, of the water stop sleeve extends out of the wall and is used for being arranged outside the pipeline in a sleeving mode, and the anti-seepage encapsulation is arranged on the outer side of the wall and used for sealing the wall. And one end, extending out of the wall body, of the water stop sleeve is wrapped. The leakage-proof structure has the beneficial effects that the durability of the leakage-proof structure is improved, rework caused by poor durability is reduced, the repair cost is saved, the waterproof performance of the whole structure is greatly improved by arranging multiple waterproof layers, and leakage is effectively prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering, and in particular relates to a rear-hole leak-proof structure for a wall-mounted pipe and a construction method. Background Art

[0002] With the renovation of old residential areas and the improvement of municipal facilities, it is inevitable that more pipes and cables will be added underground, which requires opening holes in the underground waterproof exterior wall to lay pipes and lines. The resulting anti-seepage problem of the opening holes is becoming increasingly prominent. Traditionally, when installing pipes and cables in the opening holes on site, polymer waterproof mortar is usually used to seal the gap between the pipes and cables and the opening holes, and a waterproof layer is constructed on the outside of the wall for sealing. There are only two waterproof layers and no rigid waterproof layer, which is not durable enough and prone to leakage, affecting the quality of the wall. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a leak-proof structure and construction method for the rear opening of the wall pipe, which effectively solves the technical problems of poor waterproof performance, poor durability and easy leakage of the rear opening of the wall pipe, and overcomes the shortcomings of the prior art.

[0004] The technical solution adopted by the present invention is: a rear opening leak-proof structure for a wall-mounted pipe, comprising:

[0005] A water stop sleeve passes through the wall, with one end close to the outside of the wall extending out of the wall, and is used to be sleeved on the outside of the pipeline;

[0006] The anti-seepage encapsulation is arranged on the outer side of the wall and wraps the end of the water-stopping sleeve extending out of the wall.

[0007] Furthermore, longitudinal stress-bearing bars are arranged inside the anti-seepage envelope, and the longitudinal stress-bearing bars are inserted outside the wall.

[0008] Furthermore, stirrups are provided on the longitudinal force-bearing reinforcement.

[0009] Furthermore, a first waterproof layer is provided outside the anti-seepage package.

[0010] Furthermore, an expansion water stop strip is provided in the anti-seepage envelope, and the expansion water stop strip is arranged on the outer side of the wall along the circumference of the water stop sleeve.

[0011] Furthermore, a second waterproof layer is provided between the water-stop sleeve and the hole wall of the rear opening.

[0012] Furthermore, a third waterproof layer is provided between the water-stop sleeve and the pipeline.

[0013] Furthermore, sealing layers are provided at both ends of the third waterproof layer, and the sealing layers are arranged between the water-stopping sleeve and the pipeline.

[0014] A construction method of a post-hole leak-proof structure for a wall-mounted pipe as described above comprises the following steps:

[0015] Pass the water-stop sleeve through the wall so that one end of the water-stop sleeve close to the outside of the wall protrudes out of the wall;

[0016] Casting the anti-seepage envelope on the outside of the wall to wrap the end of the waterproof casing extending out of the wall;

[0017] Pass the pipe through the water-stop sleeve.

[0018] Furthermore, an expansion water stop strip is provided in the anti-seepage encapsulation, and the expansion water stop strip is bonded to the outer side of the wall before pouring the anti-seepage encapsulation.

[0019] The advantages and positive effects of the present invention are: due to the adoption of the above technical scheme, the durability of the leak-proof structure is improved, the rework caused by poor durability is reduced, the repair cost is saved, and the multi-layer waterproofing is set to greatly improve the waterproof performance of the overall structure, effectively preventing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of a leak-proof structure of a rear opening for a wall-mounted pipe according to an embodiment of the present invention.

[0021] Figure 2 It is a cross-sectional view AA of a leak-proof structure with a rear opening for a wall-mounted pipe according to an embodiment of the present invention.

[0022] In the figure:

[0023] 1. Wall 2. Waterproof casing 3. First waterproof layer

[0024] 4. Expansion water stop strip 5. Longitudinal force reinforcement 6. Stirrups

[0025] 7. Anti-seepage encapsulation 8. Second waterproof layer 9. Pipeline

[0026] 10. The third waterproof layer 11. Sealing layer DETAILED DESCRIPTION

[0027] The embodiment of the present invention provides a post-hole leak-proof structure for a wall-mounted pipe and a construction method. The embodiment of the present invention is described below in conjunction with the accompanying drawings.

[0028] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] like Figure 1 and Figure 2 As shown, an embodiment of the present invention is a leak-proof structure for a rear opening of a pipe protruding from a wall, comprising a water-stopping sleeve 2 and an anti-seepage encapsulation 7. The water-stopping sleeve 2 passes through the rear opening on the wall 1, with one end flush with the inner side of the wall 1 and the other end extending out of the wall 1. A water-stopping ring is integrally provided at the end of the water-stopping sleeve 2 extending out of the wall 1. The specific size of the water-stopping sleeve 2 is determined according to the model of the pipe 9 to be installed. The anti-seepage encapsulation 7 is arranged on the outer side of the wall 1, wrapping the end of the water-stopping sleeve 2 extending out of the wall 1. The anti-seepage encapsulation 7 is arranged as a concrete structure. The water-stopping sleeve 2 and the anti-seepage encapsulation 7 act as rigid waterproofing, which increases the durability of the waterproof structure and improves the waterproofing performance.

[0030] Specifically, in order to enhance the stability of the anti-seepage encapsulation 7 and prevent the contact part with the wall 1 from cracking, longitudinal stress reinforcement 5 is provided in the anti-seepage encapsulation 7, and the longitudinal stress reinforcement 5 is inserted on the outside of the wall 1. A plurality of stirrups 6 are provided on the longitudinal stress reinforcement 5. Before pouring the anti-seepage encapsulation 7, the longitudinal stress reinforcement 5 is implanted into the outside of the wall 1 by means of embedded reinforcement, and is distributed in a circular shape along the circumference of the water stop sleeve 2. A plurality of stirrups 6 are tied to the longitudinal stress reinforcement 5, and then molded and cast. The end of the water stop sleeve 2 extending out of the wall 1, the longitudinal stress reinforcement 5 and the stirrups 6 are set as an integral structure by concrete pouring, and the integral structure is arranged on the outside of the wall 1, thereby improving the waterproof performance.

[0031] Preferably, a first waterproof layer 3 is provided outside the anti-seepage encapsulation 7. The specific material of the first waterproof layer 3 is not limited. Preferably, the first waterproof layer 3 is set as a waterproof roll. After the anti-seepage encapsulation 7 is poured, the waterproof roll is bonded to the outside of the anti-seepage encapsulation 7, and is connected with the waterproof roll on the outside of the original wall 1 to form an integral external waterproof layer, which plays a waterproof role together.

[0032] Preferably, an expansion water stop strip 4 is provided in the anti-seepage encapsulation 7, and the expansion water stop strip 4 is arranged on the outside of the wall 1 along the circumference of the water stop sleeve 2. Before pouring the anti-seepage encapsulation 7, the expansion water stop strip 4 is bonded to the contact position between the outer side of the wall 1 and the anti-seepage encapsulation 7 to enhance the waterproof performance of the construction joint. The expansion water stop strip 4 is arranged in a ring shape along the circumference of the water stop sleeve 2.

[0033] Preferably, a second waterproof layer 8 is provided between the water-stopping sleeve 2 and the hole wall of the rear opening. The specific material of the second waterproof layer 8 is not limited. Preferably, the second waterproof layer 8 is provided as a polymer waterproof mortar layer. After the anti-seepage encapsulation 7 is poured, a polymer waterproof mortar layer is injected into the gap between the water-stopping sleeve 2 and the hole wall of the rear opening as the second waterproof layer 8 to further improve the waterproof performance.

[0034] Preferably, a third waterproof layer 10 is provided between the waterproof sleeve 2 and the pipeline 9. The specific material of the third waterproof layer 10 is not limited. Preferably, the third waterproof layer 10 is set as an asphalt hemp layer to block the gap between the waterproof sleeve 2 and the pipeline 9.

[0035] Preferably, a blocking layer 11 is provided at both ends of the third waterproof layer 10, and the blocking layer 11 is arranged between the waterproof sleeve 2 and the pipeline 9. The specific material of the blocking layer 11 is not limited. Preferably, the blocking layer 11 is set as a sealing paste, which is used to block the end of the gap between the waterproof sleeve 2 and the pipeline 9.

[0036] Embodiment: A leak-proof structure for a rear opening of a pipe protruding from a wall, comprising a water-stopping sleeve 2 and an anti-seepage encapsulation 7. The water-stopping sleeve 2 passes through the rear opening on the wall 1, with one end flush with the inner side of the wall 1 and the other end extending out of the wall 1. The end of the water-stopping sleeve 2 extending out of the wall 1 is integrally provided with a water-stopping ring. The anti-seepage encapsulation 7 is arranged on the outer side of the wall 1, wrapping the end of the water-stopping sleeve 2 extending out of the wall 1. The anti-seepage encapsulation 7 is arranged as a concrete structure. A longitudinal force-bearing rib 5 is arranged inside the anti-seepage encapsulation 7, and the longitudinal force-bearing rib 5 is inserted in a circular shape along the circumference of the water-stopping sleeve 2 on the outer side of the wall 1, and a plurality of stirrups 6 are tied to the longitudinal force-bearing rib 5. A first waterproof layer 3, specifically a waterproof roll, is bonded to the outside of the anti-seepage encapsulation 7, which is connected to the waterproof roll on the outer side of the original wall 1 to form an integral external waterproof layer. An annular expansion water-stop strip 4 is bonded along the circumference of the water-stopping sleeve 2 at the contact position between the outer side of the wall 1 and the anti-seepage encapsulation 7. A second waterproof layer 8 is provided between the waterproof sleeve 2 and the hole wall of the rear opening, specifically a polymer waterproof mortar layer. A third waterproof layer 10 is provided between the waterproof sleeve 2 and the pipeline 9, specifically an asphalt hemp layer. A sealing layer 11 is provided at both ends of the third waterproof layer 10, and the sealing layer 11 is provided between the waterproof sleeve 2 and the pipeline 9, and the sealing layer 11 is specifically a sealing paste.

[0037] The construction method of the above-mentioned wall-mounted pipe rear opening leak-proof structure comprises the following steps:

[0038] A water drill is used to drill a hole on the wall 1 where the pipe 9 needs to be installed, and the water-stop sleeve 2 is installed and temporarily fixed so that one end of the water-stop sleeve 2 is flush with the inner side of the wall 1 and the other end passes through the outside of the wall 1. The water-stop ring on the water-stop sleeve 2 is set on the outside of the wall 1.

[0039] Longitudinal force reinforcement 5 is implanted on the outer side of the wall 1, so that the longitudinal force reinforcement 5 is arranged in a circular shape around the waterproof casing 2, and the stirrups 6 are tied. The contact position between the outer side of the wall 1 and the anti-seepage envelope 7 is roughened and cleaned, and after the expansion water stop strip 4 is pasted, the formwork is supported and concrete is poured to form the anti-seepage envelope 7.

[0040] After the concrete of the anti-seepage encapsulation 7 solidifies, the formwork is removed. A first waterproof layer 3, specifically a waterproof roll, is pasted on the outside of the anti-seepage encapsulation 7, so that the waterproof roll outside the anti-seepage encapsulation is connected to the waterproof roll outside the original wall 1, and additional waterproof layers are set at the corners according to the specifications.

[0041] The gap between the water-stop sleeve 2 and the wall of the rear opening is cleaned, and the second waterproof layer 8, specifically polymer waterproof mortar, is injected.

[0042] The pipe 9 to be installed is inserted into the waterproof casing 2, and a third waterproof layer 10, specifically asphalt hemp, is filled between the waterproof casing 2 and the outer wall of the pipe 9. The two ends of the third waterproof layer 10 are sealed with a blocking layer 11, specifically a sealing paste.

[0043] The above-mentioned anti-leakage structure with holes opened behind the wall pipe 9 may cause water seepage in three ways:

[0044] 1. Penetrate along the water stop casing 2;

[0045] The first waterproof layer 3, the water-stop ring on the water-stop sleeve 2 and the second waterproof layer 8 are arranged in sequence on this water seepage path for protection.

[0046] 2. Penetrate from the surface of the impermeable encapsulation 7;

[0047] On this water seepage path, a first waterproof layer 3, a concrete structure of an anti-seepage envelope 7 and a second waterproof layer 8 are sequentially arranged for protection.

[0048] 3. Penetrate along the construction joint between the outer side of the wall 1 and the anti-seepage envelope 7.

[0049] A first waterproof layer 3, an expansion water stop strip 4 and a second waterproof layer 8 are sequentially arranged on this water seepage path for protection.

[0050] The advantages and positive effects of the present invention are:

[0051] 1. By setting the water-stop casing and anti-seepage envelope as a rigid waterproof layer, the durability of the leak-proof structure is improved, the rework caused by poor durability is reduced, and the repair cost is saved.

[0052] 2. Multiple layers of waterproofing are set on each seepage path, which greatly improves the waterproof performance of the overall structure and effectively prevents leakage.

[0053] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A leak-proof structure for a rear opening of a wall pipe, characterized in that: include: A water stop sleeve passes through the wall, with one end close to the outside of the wall extending out of the wall, and is used to be sleeved on the outside of the pipeline; The anti-seepage encapsulation is arranged on the outer side of the wall and wraps the end of the water-stopping sleeve extending out of the wall.

2. The rear opening anti-leakage structure of the wall pipe according to claim 1 is characterized by: Longitudinal stress-bearing bars are arranged inside the anti-seepage envelope, and the longitudinal stress-bearing bars are inserted outside the wall.

3. The rear opening anti-leakage structure of the wall pipe according to claim 2 is characterized by: Stirrups are arranged on the longitudinal force-bearing bars.

4. A rear opening anti-leakage structure for wall-mounted pipes according to any one of claims 1 to 3, characterized in that: The outside of the anti-seepage package is provided with a first waterproof layer.

5. The rear opening anti-leakage structure for wall-mounted pipes according to claim 4 is characterized by: An expansion water stop strip is arranged in the anti-seepage envelope, and the expansion water stop strip is arranged on the outer side of the wall along the circumference of the water stop sleeve.

6. A leak-proof structure for rear opening of a wall pipe according to any one of claims 1 to 3 and 5, characterized in that: A second waterproof layer is provided between the water-stop sleeve and the hole wall of the rear opening.

7. A rear opening anti-leakage structure for wall-mounted pipes according to any one of claims 1 to 3 and 5, characterized in that: A third waterproof layer is provided between the water-stop sleeve and the pipeline.

8. The rear opening anti-leakage structure for wall-mounted pipes according to claim 7, characterized in that: Both ends of the third waterproof layer are provided with sealing layers, and the sealing layers are arranged between the water stop sleeve and the pipeline.

9. A construction method for a post-hole leak-proof structure for a wall-mounted pipe as claimed in claim 1, characterized in that: The following steps are involved: Pass the water-stop sleeve through the wall so that one end of the water-stop sleeve close to the outside of the wall protrudes out of the wall; Casting the anti-seepage envelope on the outside of the wall to wrap the end of the waterproof casing extending out of the wall; Pass the pipe through the water-stop sleeve.

10. The construction method of the wall-mounted pipe rear opening leak-proof structure according to claim 9, characterized in that: An expansion water stop strip is arranged inside the anti-seepage encapsulation, and before pouring the anti-seepage encapsulation, the expansion water stop strip is bonded to the outside of the wall.

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