Pre-sealing device for constructing post-cast strip and construction method of pre-sealing device

Abstract

The invention belongs to the technical field of building construction, and discloses a pre-sealing device for constructing a post-cast strip and a construction method thereof.The pre-sealing device comprises a support, a pre-sealing part, a pre-sealing part and a pre-sealing part, the support is arranged at the bottom of a pre-cast concrete slab in a supported mode and used for sealing the bottom of the post-cast strip; the cover plate is arranged at the top of the pre-cast concrete plate and used for blocking the top of the post-cast strip; the pouring pipe penetrates through the cover plate in the thickness direction of the cover plate and is fixedly connected with the cover plate, the lower end of the pouring pipe communicates with the post-cast strip, and the upper end of the pouring pipe extends to the position above the cover plate and is used for guiding poured concrete to flow into the post-cast strip, so that construction of the post-cast strip is achieved. The pre-sealing device is arranged on the pre-pouring concrete plate of the basement in advance and used for temporarily sealing the post-pouring belt and preventing rainwater from entering the basement, so that a building meets the requirement of executing multiple construction items simultaneously or alternately, the construction period can be greatly shortened, and the cost is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a pre-sealing device for constructing a post-cast strip and a construction method thereof. Background Art

[0002] With the rapid development of the domestic construction industry, higher standards have been put forward for the construction of the construction industry. In addition, the construction party has compressed the construction period, which has led to the construction unit not only considering safe and civilized production and green construction, but also considering how to achieve efficient construction and reduce construction costs. Because the post-cast strip will leak before the pouring construction, it is impossible to construct the basement. The traditional construction method of the basement post-cast strip is to wait until the main structure of the building is completed and the settlement of the main building has stabilized before starting the post-cast strip construction of the concrete slab and backfilling the earth before the basement construction can be carried out. This results in a long construction period for the entire construction, which is difficult to meet the development progress requirements. Therefore, we propose a pre-sealing device for the construction of the post-cast strip and its construction method to solve the above problems. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a pre-sealing device for constructing post-cast strips and a construction method thereof, which solves the problem that the post-cast strip construction can only be carried out after the building structure is completed and the settlement of the main building tends to be stable, thereby resulting in a long construction period.

[0004] The present invention is achieved through the following scheme: a pre-sealing device for constructing a post-cast strip, comprising:

[0005] The bracket is installed at the bottom of the first poured concrete slab to seal the bottom of the post-cast zone;

[0006] A cover plate is provided on top of the pre-cast concrete slab to seal the top of the post-cast strip; and

[0007] The pouring pipe passes through the thickness direction of the cover plate and is fixedly connected to the cover plate. The lower end of the pouring pipe is connected to the post-casting strip, and the upper end of the pouring pipe extends to the top of the cover plate, which is used to guide the poured concrete to flow into the post-casting strip to realize the construction of the post-casting strip.

[0008] A further improvement of the pre-sealing device for constructing a post-cast strip according to the present invention is that a waterproof cement mortar is used as a base mortar in the contact area between the cover plate and the pre-cast concrete slab.

[0009] A further improvement of the pre-sealing device for constructing a post-cast strip of the present invention is that it further comprises an edge sealing strip for sealing the edge of the connection area between the cover plate and the pre-cast concrete slab.

[0010] A further improvement of the pre-sealing device for constructing post-cast strips of the present invention is that it also includes a waterproof layer laid on the outside of the cover plate and the edge strip, and the edge of the waterproof layer completely covers the connecting edge of the edge strip and the pre-cast concrete slab.

[0011] A further improvement of the pre-sealing device for constructing a post-cast strip of the present invention is that a through opening is opened through the waterproof layer for the pouring pipe to pass through, and a circle of pipe sleeve is formed on the edge of the through opening. The pipe sleeve is arranged on the outside of the pouring pipe, and the upper end of the pipe sleeve extends upward to the top of the pouring pipe and is wrapped around the inside of the pouring pipe.

[0012] A further improvement of the pre-sealing device for constructing a post-cast zone of the present invention is that it also includes a protective layer built on the top of the waterproof layer for compacting the waterproof layer.

[0013] A further improvement of the pre-sealing device for constructing post-cast strips of the present invention is that it also includes a water-stop wing ring, which is sleeved on the outside of the casting pipe and anchored in the cover plate to prevent water seepage from the connection seam between the cover plate and the casting pipe.

[0014] A construction method for a pre-sealing device for constructing a post-cast strip comprises the following steps:

[0015] S1. During the construction of the main structure of the building, providing the pre-sealing device as described above;

[0016] S2. Place the bracket at the bottom of the first poured concrete slab and seal the bottom of the post-cast strip;

[0017] S3, placing a cover plate on top of the pre-cast concrete slab and sealing the top of the post-cast strip so that the casting pipe is connected to the post-cast strip;

[0018] S4. After the main structure of the building is completed and the settlement of the main building tends to be stable, pour concrete into the post-casting zone through the pouring pipe.

[0019] A further improvement of the construction method of the pre-sealing device for constructing a post-cast strip of the present invention is that the pre-sealing device further includes an edge sealing strip, a waterproof layer, and a protective layer. The edge sealing strip seals the edge of the connection area between the cover plate and the pre-cast concrete slab. The waterproof layer is laid outside the cover plate and the edge sealing strip. The edge of the waterproof layer completely covers the connection edge between the edge sealing strip and the pre-cast concrete slab. The protective layer is built on top of the waterproof layer to compact the waterproof layer.

[0020] After completing step S3, the edge banding is first sealed at the edge of the connection area between the cover plate and the first cast concrete slab, and then the waterproof layer is laid on the outside of the cover plate and the edge banding, so that the edge of the waterproof layer completely covers the connection edge between the edge banding and the first cast concrete slab, and then a protective layer is built on the top of the waterproof layer.

[0021] A further improvement of the construction method of the present invention for constructing a pre-sealing device for a post-cast strip is that, after completing the construction of step S4, it also includes the steps of backfilling earth on the top of the protective layer to a set height, cutting off the portion of the casting pipe protruding from the top of the earth, and sealing the cut casting pipe opening.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention arranges a pre-sealing device on the concrete slab poured in the basement in advance to temporarily block the post-cast strip and prevent rainwater from entering the basement, thereby making the building meet the requirements of executing multiple construction items simultaneously or interspersed, which can greatly shorten the construction period and save costs. At the same time, concrete can be injected into the post-cast strip through the pouring pipe, which also facilitates the construction of the post-cast strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is a schematic diagram of the overall structure of the present invention.

[0025] In the figure: 1. Cover plate; 101. Lifting ring; 2. Casting pipe; 3. Waterproof layer; 4. Edge sealing strip; 5. Opening; 6. Pre-cast concrete slab; 7. Post-cast strip; 8. Bracket; 9. Waterstop wing ring; 10. Earthwork. DETAILED DESCRIPTION

[0026] To address the problem of requiring the construction of post-cast strips to be completed only after the building structure is fully completed and the main building settlement has stabilized, which results in a long construction period, the present invention provides a pre-sealing device for post-cast strip construction and a construction method thereof. The following describes a specific embodiment of the pre-sealing device for post-cast strip construction and its construction method in conjunction with the accompanying drawings.

[0027] See Figure 1 As shown, a pre-sealing device for constructing a post-cast strip comprises:

[0028] The bracket 8 is supported at the bottom of the first cast concrete slab 6 and is used to block the bottom of the post-cast strip 7;

[0029] A cover plate 1 is provided on top of the pre-cast concrete slab 6 to seal the top of the post-cast strip 7; and

[0030] The pouring pipe 2 passes through the cover plate 1 in the thickness direction and is fixedly connected to the cover plate 1. The lower end of the pouring pipe 2 is connected to the post-casting strip 7, and the upper end of the pouring pipe 2 extends to the top of the cover plate 1, which is used to guide the poured concrete to flow into the post-casting strip 7 to realize the construction of the post-casting strip 7.

[0031] Specifically, in this embodiment, the bracket 8 includes a frame body and a support plate. The support plate is attached to the bottom of the pre-cast concrete slab 6 and blocks the post-cast strip 7. The frame body is supported on the bottom of the support plate to support the support plate and can be removed after the post-cast strip 7 is cast and formed.

[0032] Furthermore, the cover plate 1 is prefabricated and can be used immediately after being transported to the construction site. The cover plate 1 is formed by forming a steel mesh and pouring concrete, and is poured and vibrated to be dense using C30P6 finished concrete. Both ends of the cover plate 1 are provided with lifting rings 101, which are tied to the steel mesh and anchored together with the concrete. During transportation, the cover plate 1 is conveniently transported through the lifting rings 101 on both sides.

[0033] By adopting the above design, a pre-sealing device is set on the pre-cast concrete slab 6 in the basement in advance to temporarily block the post-cast strip 7 to prevent rainwater from entering the basement, so that the building meets the requirements of executing multiple construction items simultaneously or interspersed, and the synchronous construction of outdoor top plate earthwork 10, landscaping, municipal and other processes and the installation of various fire protection pipelines in the basement is achieved, which can greatly shorten the construction period and save costs. At the same time, concrete can be injected into the post-cast strip 7 through the pouring pipe 2, which also facilitates the construction of the post-cast strip 7.

[0034] The contact area between the cover plate 1 and the pre-cast concrete slab 6 is paved with waterproof cement mortar.

[0035] By adopting the above design, waterproof cement mortar is filled between the cover plate 1 and the pre-cast concrete plate 6, which can achieve the effect of sealing and preventing water seepage.

[0036] It also includes an edge banding strip 4 that seals the edge of the connection area between the cover plate 1 and the pre-cast concrete plate 6.

[0037] Specifically, in this embodiment, the edge banding 4 is formed by constructing and curing waterproof cement mortar;

[0038] By adopting the above design, the edge banding strips 4 are used to seal the edge areas of the cover plate 1 and the pre-cast concrete slab 6, thereby preventing water seepage in the areas.

[0039] It also includes a waterproof layer 3, which is laid outside the cover plate 1 and the edge strip 4. The edge of the waterproof layer 3 completely covers the connection edge between the edge strip 4 and the pre-cast concrete slab 6.

[0040] By adopting the above design, the waterproof layer 3 is covered on the cover plate 1 and the edge banding 4, which can be used for overall waterproofing, avoiding water leakage before pouring the post-casting strip 7, so as not to affect the construction of the basement.

[0041] Among them, the waterproof layer 3 is penetrated by a through opening 5 for the pouring pipe 2 to pass through, and a circle of pipe sleeve is formed on the edge of the through opening 5. The pipe sleeve is arranged on the outside of the pouring pipe 2, and the upper end of the pipe sleeve extends upward to the top of the pouring pipe 2 and is wrapped around the inside of the pouring pipe 2.

[0042] By adopting the above design, the pipe sleeve can prevent water leakage from the connection seam between the pouring pipe 2 and the waterproof layer 3, thereby further improving the waterproof effect.

[0043] It also includes a protective layer, which is built on the top of the waterproof layer 3 and is used to compact the waterproof layer 3.

[0044] Specifically, in this embodiment, the protective layer is formed by anchoring the steel mesh with concrete;

[0045] By adopting the above design, the protective layer is laid on the upper part of the waterproof layer 3, which can compact the waterproof layer 3 so that it fits more closely to the cover plate 1, thereby further improving the waterproof effect.

[0046] It also includes a water-stop wing ring 9, which is sleeved on the outside of the casting pipe 2 and anchored in the cover plate 1 to prevent water seepage from the connection seam between the cover plate 1 and the casting pipe 2.

[0047] By adopting the above design, the water-stop wing ring 9 can prevent water from seeping into the post-casting zone 7 from the connection between the cover plate 1 and the pouring pipe 2 .

[0048] A construction method for a pre-sealing device for constructing a post-cast strip 7 comprises the following steps:

[0049] S1. During the construction of the main structure of the building, the above-mentioned pre-sealing device is provided;

[0050] S2. Support the bracket 8 at the bottom of the first cast concrete slab 6 and seal the bottom of the post-cast strip 7;

[0051] S3, placing the cover plate 1 on the top of the pre-cast concrete slab 6 and blocking the top of the post-cast strip 7 so that the pouring pipe 2 is connected to the post-cast strip 7;

[0052] S4. After the main structure of the building is completed and the settlement of the main building tends to be stable, concrete is poured into the post-casting zone 7 through the pouring pipe 2.

[0053] The pre-sealing device further includes an edge banding 4, a waterproof layer 3, and a protective layer. The edge banding 4 is sealed at the edge of the connection area between the cover plate 1 and the pre-cast concrete slab 6. The waterproof layer 3 is laid outside the cover plate 1 and the edge banding 4. The edge of the waterproof layer 3 completely covers the connection edge between the edge banding 4 and the pre-cast concrete slab 6. The protective layer is built on top of the waterproof layer 3 to compact the waterproof layer 3.

[0054] After completing step S3, the edge banding strip 4 is first sealed at the edge of the connection area between the cover plate 1 and the first cast concrete slab 6, and then the waterproof layer 3 is laid on the outside of the cover plate 1 and the edge banding strip 4, so that the edge of the waterproof layer 3 completely covers the connection edge between the edge banding strip 4 and the first cast concrete slab 6, and then a protective layer is built on the top of the waterproof layer 3.

[0055] Among them, after the construction of step S4, the following steps are also included: backfilling earth 10 on the top of the protective layer to a set height, cutting off the part of the pouring pipe 2 protruding from the top of the earth 10, and sealing the cut pouring pipe 2.

[0056] By adopting the above design, after the construction of the earthwork 10 is completed, the pouring pipe 2 is trimmed so that its height is not higher than the top of the earthwork 10 to avoid affecting the appearance, and the pipe mouth of the cut pouring pipe 2 is sealed to avoid subsequent water leakage.

[0057] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0058] The present invention has been described in detail above with reference to the embodiments of the accompanying drawings. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A pre-sealing device for construction of post-cast strips, characterized in that: include: The bracket is installed at the bottom of the first poured concrete slab to seal the bottom of the post-cast zone; The cover plate is set on the top of the first poured concrete slab to seal the top of the post-cast strip; as well as The pouring pipe passes through the thickness direction of the cover plate and is fixedly connected to the cover plate. The lower end of the pouring pipe is connected to the post-casting strip, and the upper end of the pouring pipe extends to the top of the cover plate, which is used to guide the poured concrete to flow into the post-casting strip to realize the construction of the post-casting strip.

2. The pre-sealing device for construction of post-cast strips according to claim 1, characterized in that: The contact area between the cover plate and the precast concrete slab is mortared with waterproof cement mortar.

3. The pre-sealing device for construction of post-cast strips according to claim 1, characterized in that: It also includes edge banding strips, which are used to seal the edges of the connection area between the cover plate and the pre-cast concrete slab.

4. The pre-sealing device for constructing post-cast strips according to claim 3, characterized in that: It also includes a waterproof layer, which is laid on the outside of the cover plate and the edge strip, and the edge of the waterproof layer completely covers the connection edge between the edge strip and the pre-cast concrete slab.

5. The pre-sealing device for constructing post-cast strips according to claim 4, characterized in that: The waterproof layer is penetrated by a through hole for the pouring pipe to pass through, and a circle of pipe sleeve is formed on the edge of the through hole. The pipe sleeve is arranged on the outside of the pouring pipe, and the upper end of the pipe sleeve extends upward to the top of the pouring pipe and is wrapped around the inside of the pouring pipe.

6. The pre-sealing device for constructing post-cast strips according to claim 4, characterized in that: It also includes a protective layer, which is built on the top of the waterproof layer and is used to compact the waterproof layer.

7. The pre-sealing device for construction of post-cast strips according to claim 1, characterized in that: It also includes a water-stop wing ring, which is sleeved on the outside of the casting pipe and anchored in the cover plate to prevent water seepage from the connection seam between the cover plate and the casting pipe.

8. A construction method for a pre-sealing device for constructing a post-cast zone, characterized in that: The following steps are involved: S1. During the construction of the main structure of a building, providing the pre-sealing device according to claim 1; S2. Place the bracket at the bottom of the first poured concrete slab and seal the bottom of the post-cast strip; S3, placing a cover plate on top of the pre-cast concrete slab and sealing the top of the post-cast strip so that the casting pipe is connected to the post-cast strip; S4. After the main structure of the building is completed and the settlement of the main building tends to be stable, pour concrete into the post-casting zone through the pouring pipe.

9. The construction method for a pre-sealing device for constructing a post-cast strip according to claim 8, wherein: The pre-sealing device further includes an edge sealing strip, a waterproof layer, and a protective layer. The edge sealing strip seals the edge of the connection area between the cover plate and the pre-cast concrete slab. The waterproof layer is laid outside the cover plate and the edge sealing strip. The edge of the waterproof layer completely covers the connection edge between the edge sealing strip and the pre-cast concrete slab. The protective layer is built on top of the waterproof layer to compact the waterproof layer. After completing step S3, the edge banding is first sealed at the edge of the connection area between the cover plate and the first cast concrete slab, and then the waterproof layer is laid on the outside of the cover plate and the edge banding, so that the edge of the waterproof layer completely covers the connection edge between the edge banding and the first cast concrete slab, and then a protective layer is built on the top of the waterproof layer.

10. The construction method for the pre-sealing device for constructing a post-cast strip according to claim 9, characterized in that: After the step S4 is completed, the method further includes the following steps: backfilling earth on the top of the protective layer to a set height, cutting off the portion of the pouring pipe protruding from the top of the earth, and sealing the cut pouring pipe opening.

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