Sedimentation post-cast strip advanced water stop sealing structure and construction method thereof

Abstract

The invention provides a sedimentation post-cast strip advanced water stop sealing structure and a construction method thereof, and relates to the technical field of building sedimentation construction, the sedimentation post-cast strip advanced water stop sealing structure comprises two waterproof mortar seats, a prefabricated cover plate, a waterproof layer and a supporting bottom plate; a post-cast strip construction groove is formed between the two waterproof mortar seats, subsequent construction of the post-cast strip is facilitated, a prefabricated cover plate is further arranged above the post-cast strip construction groove, and a waterproof layer and a protective layer are further arranged on the prefabricated cover plate. The structure has the beneficial effects that the waterproof layer and the protective layer of the structure can effectively seal the upper portion of the post-cast strip construction groove, so that split construction buildings can be temporarily connected together, the space between the split buildings has the good waterproof effect, the grouting pipe on the prefabricated cover plate can provide a pouring channel for pouring of the post-cast strip, and the construction efficiency of the post-cast strip is improved. Therefore, the problem of building cracking caused by uneven settlement of split construction is solved. According to the construction method, the post-cast strip construction process can be greatly simplified, so that the construction period of the whole building is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of building settlement construction, in particular to a settlement post-casting strip advance water-stopping sealing structure and a construction method thereof. Background Art

[0002] The structure and foundation of the high-rise building and the podium are designed as a whole, but during construction, the two parts are temporarily separated by the post-casting belt construction groove. After the main structure is completed, the two adjacent parts will settle to a certain extent respectively, and then the concrete of the connecting part will be poured to form a post-casting belt. The two parts of the building will be connected as a whole after the settlement respectively. In order to ensure that the poured concrete does not leak, the conventional post-casting belt adopts the method of adding a steel wire mesh, and the construction efficiency is very low. Moreover, since the side steel wire mesh is too thick, the original steel wire mesh must be chiseled off before pouring concrete to ensure that the interface forms a whole, and the safety and durability of the structure are ensured. Compared with some buildings (basements or underground garages), in order to prevent rainwater from leaking, the post-casting belt construction groove needs to be temporarily closed after it is formed, and the closing of the post-casting belt construction groove will affect the construction of the post-casting belt. Therefore, the existing post-casting belt construction process needs to be constructed first, then dismantled, and then constructed again, which will greatly reduce the construction efficiency and construction period. Summary of the invention

[0003] In view of this, in order to shorten the construction period and improve the safety and durability of the post-casting strip, the present invention provides a settlement post-casting strip advance water-stopping sealing structure, including two waterproof mortar seats, a prefabricated cover plate, a waterproof layer and a supporting bottom plate;

[0004] The two waterproof mortar seats are arranged at intervals, and a post-casting belt construction groove is formed between the two waterproof mortar seats;

[0005] The prefabricated cover plate is covered above the post-casting belt construction groove, and the two sides of the prefabricated cover plate are respectively supported on the two waterproof mortar seats, and a grouting pipe is provided on the prefabricated cover plate, and the lower end of the grouting pipe passes through the prefabricated cover plate;

[0006] The waterproof layer is covered on the prefabricated cover plate, a protective layer is also cast above the waterproof layer, and the upper end of the grouting pipe passes through the waterproof layer and the protective layer;

[0007] The supporting bottom plate is located below the two waterproof mortar seats, and the supporting bottom plate closes the lower end of the post-casting belt construction groove.

[0008] Furthermore, a steel mesh is provided in each of the two waterproof mortar seats, a connecting steel mesh is provided in the post-cast zone construction groove, and both sides of the connecting steel mesh are connected to the steel meshes in the two waterproof mortar seats.

[0009] Furthermore, both sides of the waterproof layer extend to the upper surfaces of the two waterproof mortar seats, thereby covering the connection between the prefabricated cover plate and the waterproof mortar seat.

[0010] Furthermore, both sides of the protective layer extend to the upper surfaces of the two waterproof mortar seats, so that the protective layer completely covers the waterproof layer.

[0011] Furthermore, a lattice column is provided at the bottom of the supporting base plate, and the lattice column supports the supporting base plate.

[0012] Furthermore, a cover is provided at the upper end of the grouting pipe to prevent rainwater from entering the post-casting zone construction groove.

[0013] Furthermore, the prefabricated cover plate is a prefabricated reinforced concrete plate, and two installation handles made of steel bars are provided on the prefabricated cover plate, and the two installation handles are welded together with the steel mesh in the prefabricated cover plate.

[0014] The present invention also provides a method for constructing a settlement post-casting strip advance water-stopping sealing structure, which is used to construct the settlement post-casting strip advance water-stopping sealing structure, and the method comprises the following steps:

[0015] S1: pouring a waterproof mortar seat, reserving a post-casting belt construction groove between two waterproof mortar seats, and extending the steel bars on the inner side of the waterproof mortar seat out of the side of the waterproof mortar seat;

[0016] S2: pre-arrange a connecting steel mesh in the post-casting belt construction groove, and connect both sides of the connecting steel mesh to the steel bars extending from the inner side of the waterproof mortar seat;

[0017] S3: making a prefabricated cover plate, and covering the prefabricated cover plate on the post-casting belt construction groove;

[0018] S4: laying a waterproof layer on the prefabricated cover plate, and pouring a protective layer on the waterproof layer so that the protective layer completely covers the waterproof layer;

[0019] S5: After the waterproof mortar seat settles, install the supporting base plate at the bottom of the post-casting belt construction groove;

[0020] S6: injecting concrete slurry from the grouting pipe into the post-casting belt construction groove to fill the post-casting belt construction groove to form a post-casting belt, so that the post-casting belt construction belt is connected to the two waterproof mortar seats to form an integral structure;

[0021] S7: Remove the supporting base plate, cut the part of the grouting pipe that exceeds the waterproof layer, and inject concrete slurry into the remaining part of the grouting pipe to keep the protective layer flat.

[0022] Furthermore, in step S6, after the post-casting strip construction groove is filled with concrete slurry, a vibrating rod needs to be inserted from the grouting pipe into the post-casting strip construction groove to vibrate the concrete slurry therein to make the concrete slurry dense.

[0023] Furthermore, during the pouring of the protective layer in step S4, a steel mesh is first tied above the waterproof layer, and then the steel mesh is welded to the grouting pipe, and then concrete slurry is poured on the steel mesh so that the concrete slurry covers the entire waterproof layer, thereby forming the protective layer.

[0024] The present invention provides a settlement post-casting belt advanced water-stopping sealing structure and a construction method thereof, which have the following beneficial effects:

[0025] (1) The advanced water-stopping sealing structure of the post-casting strip for settlement includes two waterproof mortar seats, a prefabricated cover plate, a waterproof layer and a supporting bottom plate; a post-casting strip construction groove is formed between the two waterproof mortar seats to facilitate the subsequent construction of the post-casting strip, and a prefabricated cover plate is also provided above the post-casting strip construction groove, and a waterproof layer and a protective layer are also provided on the prefabricated cover plate, and the two can effectively seal the top of the post-casting strip construction groove, so that the buildings with separate construction can be temporarily connected together, so that the space between the separate buildings has a good waterproof effect, and solve the problem of building cracks caused by uneven settlement of the separate construction.

[0026] (2) The prefabricated cover plate of the advanced water-stopping closed structure of the settlement post-casting strip is provided with a grouting pipe, and a connecting steel mesh is provided in the post-casting strip construction groove, and the two sides of the connecting steel mesh are connected to the steel meshes in the two waterproof mortar seats. The grouting pipe can provide a channel for the subsequent pouring of the post-casting strip, avoiding the problem of the need to remove the waterproof setting, and the connecting steel mesh is connected to the steel mesh in the waterproof mortar seat, thereby improving the integrity and structural strength of the post-casting strip to be poured subsequently, which can greatly improve the safety and durability of the post-casting strip.

[0027] (3) This construction method constructs an advance water-stop structure by reserving a pouring channel for the post-casting strip, which can avoid the need for repeated construction and demolition during the construction of the post-casting strip. This construction method can greatly simplify the construction process of the post-casting strip, thereby shortening the construction period of the entire building. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a cross-sectional view of an advanced water-stopping sealing structure of a post-cast settlement strip according to an embodiment of the present invention.

[0029] Figure 2 It is a flow chart of a method for constructing an advanced water-stopping sealing structure of a post-casting zone in a settlement according to an embodiment of the present invention.

[0030] In the above figure: 1- waterproof mortar base, 2- post-casting belt construction groove, 21- connecting steel mesh, 3- prefabricated cover plate, 4- grouting pipe, 5- waterproof layer, 6- protective layer, 7- supporting base plate, 8- lattice column. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0032] Please refer to Figure 1 , Figure 1 It is a cross-sectional view of an advance water-stopping and sealing structure for a settlement post-cast strip according to the present invention. The advance water-stopping and sealing structure for a settlement post-cast strip according to the present invention comprises two waterproof mortar seats 1, a prefabricated cover plate 3, a waterproof layer 5 and a supporting base plate 7; wherein the waterproof mortar seats 1 belong to two independently constructed buildings, and the two settle independently.

[0033] The two waterproof mortar seats 1 are arranged at intervals, and a post-casting strip construction groove 2 is formed between the two waterproof mortar seats 1; the prefabricated cover plate 3 covers the post-casting strip construction groove 2, and the two sides of the prefabricated cover plate 3 are respectively supported on the two waterproof mortar seats 1, and the prefabricated cover plate 3 closes the post-casting strip construction groove 2 from the top, and the prefabricated cover plate 3 is provided with a grouting pipe 4. In this embodiment, the grouting pipe 4 is a steel casing with a length of 300mm. The lower end of the grouting pipe 4 passes through the prefabricated cover plate 3; the prefabricated cover plate 3 is a galvanized steel pipe, and the waterproof layer 5 covers the prefabricated cover plate 3. A protective layer 6 of concrete material is also poured above the waterproof layer 5, wherein the protective layer 6 is 50mm thick C25 fine stone concrete.

[0034] The upper end of the grouting pipe 4 passes through the waterproof layer 5 and the protective layer 6; the supporting bottom plate 7 is located below the two waterproof mortar seats 1, and the supporting bottom plate 7 closes the lower end of the post-casting belt construction groove 2.

[0035] The post-cast strip construction groove 2 is used for the subsequent construction of the post-cast strip, and the grouting pipe is used to provide a pouring channel for the subsequent construction of the post-cast strip. The waterproof layer and the protective layer can effectively seal the top of the post-cast strip construction groove, so that the buildings with separate construction can be temporarily connected together, so that the space between the separate buildings has a good waterproof effect, and solve the problem of building cracks caused by uneven settlement of the separate construction.

[0036] In a preferred embodiment, a steel mesh is provided in each of the two waterproof mortar seats 1 , a connecting steel mesh 21 is provided in the post-cast zone construction groove 2 , and both sides of the connecting steel mesh 21 are connected to the steel meshes in the two waterproof mortar seats 1 .

[0037] In a preferred embodiment, the two sides of the waterproof layer 5 extend to the upper surfaces of the two waterproof mortar seats 1, thereby covering the connection between the prefabricated cover plate 3 and the waterproof mortar seat 1. The two sides of the protective layer 6 extend to the upper surfaces of the two waterproof mortar seats 1, so that the protective layer 6 completely covers the waterproof layer 5. In this way, the waterproof layer 5 and the protective layer 6 can fully cover the connection between the prefabricated cover plate 3 and the waterproof mortar seat 1, thereby improving the waterproof and sealing effects.

[0038] In a preferred embodiment, a lattice column 8 is provided at the bottom of the supporting base plate 7 , and the lattice column 8 supports the supporting base plate 7 .

[0039] In a preferred embodiment, a cover is further provided at the upper end of the grouting pipe 4. The cover may be made of polyurethane foam to prevent rainwater from entering the post-casting strip construction groove 2. The cover is removed during the subsequent pouring of the post-casting strip.

[0040] In a preferred embodiment, the prefabricated cover plate 3 is a prefabricated reinforced concrete plate, and the prefabricated cover plate 3 is provided with two installation handles made of steel bars (not shown in the figure), which are welded to the steel mesh in the prefabricated cover plate 3. The size of the prefabricated cover plate is 1200×1200×100mm (thickness), the steel mesh in the prefabricated cover plate 3 is arranged in two directions, and the prefabricated cover plate 3 is cast and vibrated to be dense using C35 finished concrete.

[0041] refer to Figure 2 The present invention also provides a method for constructing a settlement post-casting belt advance water-stopping sealing structure, which is used to construct the settlement post-casting belt advance water-stopping sealing structure, and the method comprises the following steps:

[0042] S1: pouring the waterproof mortar seat 1, reserving a post-casting belt construction groove 2 between the two waterproof mortar seats 1, and extending the steel bar part inside the waterproof mortar seat 1 out of the side of the waterproof mortar seat 1;

[0043] S2: pre-arrange the connecting steel mesh 21 in the post-casting belt construction groove 2, and connect the two sides of the connecting steel mesh 21 to the steel bars extending from the inner side of the waterproof mortar seat 1;

[0044] S3: making a prefabricated cover plate 3, and covering the prefabricated cover plate 3 on the post-casting belt construction groove 2;

[0045] S4: laying a waterproof layer 5 on the prefabricated cover plate 3, and pouring a protective layer 6 on the waterproof layer 5, so that the protective layer completely covers the waterproof layer 5;

[0046] S5: After the waterproof mortar seat 1 settles, a support base plate 7 is installed at the bottom of the post-casting belt construction groove 2, and the support base plate 7 is supported from the bottom by a lattice column;

[0047] S6: injecting concrete slurry from the grouting pipe 4 into the post-casting belt construction groove 2, filling the post-casting belt construction groove 2 to form a post-casting belt, so that the post-casting belt construction belt and the two waterproof mortar seats 1 are connected to form an integral structure;

[0048] S7: Remove the supporting base plate 7 and the lattice column, cut the portion of the grouting pipe 4 that exceeds the waterproof layer 5, and inject concrete slurry into the remaining portion of the grouting pipe 4 to keep the protective layer 6 flat.

[0049] Furthermore, in step S6, after the post-casting zone construction groove 2 is filled with concrete slurry, a vibrating rod needs to be inserted from the grouting pipe 4 into the post-casting zone construction groove 2 to vibrate the concrete slurry therein to make the concrete slurry dense.

[0050] In a preferred embodiment, during the pouring of the protective layer 6 in step S4, a steel mesh is first tied above the waterproof layer 5, and then the steel mesh is welded to the grouting pipe 4, and then concrete slurry is poured on the steel mesh so that the concrete slurry covers the entire waterproof layer 5, thereby forming the protective layer 6.

[0051] In the preferred embodiment, the directional words such as front, back, top, bottom, etc. involved are defined by the positions of the components in the drawings and the positions of the components relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0052] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0053] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A settlement post-casting advanced water-stopping sealing structure, characterized in that: It includes two waterproof mortar bases, a prefabricated cover plate, a waterproof layer and a supporting base plate; The two waterproof mortar seats are arranged at intervals, and a post-casting belt construction groove is formed between the two waterproof mortar seats; The prefabricated cover plate is covered above the post-casting belt construction groove, and the two sides of the prefabricated cover plate are respectively supported on the two waterproof mortar seats, and a grouting pipe is provided on the prefabricated cover plate, and the lower end of the grouting pipe passes through the prefabricated cover plate; The waterproof layer is covered on the prefabricated cover plate, a protective layer is also cast above the waterproof layer, and the upper end of the grouting pipe passes through the waterproof layer and the protective layer; The supporting bottom plate is located below the two waterproof mortar seats, and the supporting bottom plate closes the lower end of the post-casting belt construction groove.

2. The advanced water-stopping sealing structure of the post-casting zone according to claim 1 is characterized in that: Steel meshes are arranged in the two waterproof mortar seats, and a connecting steel mesh is arranged in the post-casting belt construction groove, and the two sides of the connecting steel mesh are connected to the steel meshes in the two waterproof mortar seats.

3. The advanced water-stopping sealing structure of the post-casting zone according to claim 1 is characterized in that: Both sides of the waterproof layer extend to the upper surfaces of the two waterproof mortar seats, thereby covering the connection between the prefabricated cover plate and the waterproof mortar seat.

4. The advanced water-stopping sealing structure for post-casting belts according to claim 1 is characterized in that: Both sides of the protective layer extend to the upper surfaces of the two waterproof mortar seats, so that the protective layer completely covers the waterproof layer.

5. The advanced water-stopping sealing structure for post-casting belts of settlement according to claim 1 is characterized in that: A lattice column is provided at the bottom of the supporting base plate, and the lattice column supports the supporting base plate.

6. The advanced water-stopping sealing structure for post-casting belts according to claim 1 is characterized in that: A cover is also provided at the upper end of the grouting pipe to prevent rainwater from entering the post-casting zone construction groove.

7. The advanced water-stopping sealing structure for post-casting belts according to claim 1 is characterized in that: The prefabricated cover plate is a prefabricated reinforced concrete plate. Two installation handles made of steel bars are provided on the prefabricated cover plate. The two installation handles are welded to the steel mesh in the prefabricated cover plate.

8. A method for constructing a water-stopping closed structure of a post-casting belt, characterized in that: The method is used to construct the advanced water-stopping sealing structure of the post-casting belt of the settlement as claimed in any one of claims 1 to 7, and the method comprises the following steps: S1: pouring a waterproof mortar seat, reserving a post-casting belt construction groove between two waterproof mortar seats, and extending the steel bars on the inner side of the waterproof mortar seat out of the side of the waterproof mortar seat; S2: pre-arrange a connecting steel mesh in the post-casting belt construction groove, and connect the two sides of the connecting steel mesh with the steel bars extending from the inner side of the waterproof mortar seat; S3: making a prefabricated cover plate, and covering the prefabricated cover plate on the post-casting belt construction groove; S4: laying a waterproof layer on the prefabricated cover plate, and pouring a protective layer on the waterproof layer so that the protective layer completely covers the waterproof layer; S5: After the waterproof mortar seat settles, install the supporting base plate at the bottom of the post-casting belt construction groove; S6: injecting concrete slurry from the grouting pipe into the post-casting belt construction groove to fill the post-casting belt construction groove to form a post-casting belt, so that the post-casting belt construction belt is connected to the two waterproof mortar seats to form an integral structure; S7: Remove the supporting base plate, cut the part of the grouting pipe that exceeds the waterproof layer, and inject concrete slurry into the remaining part of the grouting pipe to keep the protective layer flat.

9. A method for constructing a post-casting settling zone advanced water-stopping sealing structure according to claim 8, characterized in that: In step S6, after the post-casting strip construction groove is filled with concrete slurry, it is necessary to insert a vibrating rod from the grouting pipe into the post-casting strip construction groove to vibrate the concrete slurry therein to make the concrete slurry dense.

10. The method for constructing a post-casting settling belt advanced water-stopping sealing structure according to claim 8, characterized in that: During the pouring of the protective layer in step S4, a steel mesh is first tied above the waterproof layer, and then the steel mesh is welded to the grouting pipe, and then concrete slurry is poured on the steel mesh so that the concrete slurry covers the entire waterproof layer, thereby forming the protective layer.

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