Post-cast strip drainage structure system and construction method
By setting up drainage and drainage structure systems with drainage pipes, transition pipes, gravel cushion layers and waterproof layers in the rear casting belt, the problem of leakage in the rear casting belt is solved, effective drainage and leakage prevention effects are achieved, and construction costs are reduced.
Patent Information
- Application Number
- CN202510010940.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-03-14
AI Technical Summary
The leakage problem of the after-pouring belt affects the progress of the project and increases construction costs, and it is difficult for the existing technology to effectively solve this problem.
A drainage structure system for rear-watering belt is adopted, including setting up drainage pipes, transition pipes, gravel cushions and waterproofing layers in the rear-watering belt to form a smooth drainage channel. The leakage water is collected into the water collection well through the drainage pipes and transition pipes, and the waterproof layer isolates the concrete slurry.
It effectively reduces leakage of the rear pouring belt, avoids adverse effects on subsequent construction and building structure, reduces construction costs, and improves the anti-leakage effect of the rear pouring belt.
Smart Images
Figure CN119615975A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of post-cast strip construction, and in particular to a post-cast strip drainage structure system and a construction method. Background Art
[0002] Post-cast strips refer to temporary deformation joints due to temperature, shrinkage and settlement that are retained during construction in cast-in-place integral reinforced concrete structures. The joints are retained for a certain period of time according to the specific construction conditions, and then filled with concrete to become a continuous, integral, non-stretching structure. The setting of post-cast strips can effectively eliminate the additional stress caused by the deformation of structural components or uneven settlement of the foundation, effectively reduce or prevent the development and growth of cracks, and are very beneficial to the waterproofing of the foundation and basement.
[0003] However, leakage of the base plate post-cast strip is also a rather tricky problem. First, leakage of the post-cast strip will affect the subsequent floor construction and the progress of the project; second, it will increase the construction cost, including grouting repairs at the leakage point and secondary rework of the floor caused by leakage. Summary of the invention
[0004] In order to improve the anti-seepage effect of the post-cast strip, the present application provides a post-cast strip drainage structure system and a construction method.
[0005] In the first aspect, the present application provides a post-cast strip drainage structure system, which adopts the following technical solution: A post-cast strip drainage structure system comprises a drainage pipe, a transition pipe, a gravel cushion layer and a waterproof layer arranged in the post-cast strip, wherein the drainage pipe is arranged along the length direction of the post-cast strip, the drainage pipe is fixedly arranged on the bottom steel bar of the post-cast strip, the transition pipe is connected with the drainage pipe and extends into a water collection well, the gravel cushion layer is laid at the bottom of the post-cast strip and the drainage pipe is buried, a plurality of water diversion holes are opened on the drainage pipe, the leakage water infiltrating into the gravel cushion layer enters the drainage pipe through the water diversion holes, then enters the transition pipe, and then is collected into the water collection well, and the waterproof layer is laid on the top of the gravel layer to separate the poured concrete and the gravel cushion layer.
[0006] Optionally, a waterstop is provided at the connection seam between the post-cast strip and the main building body, and two sides of the waterstop are respectively located in the main building body and the post-cast strip.
[0007] Optionally, the water diversion holes are arranged in a plum blossom shape on the water diversion pipe, and the plum blossom-shaped water diversion holes are evenly arranged along the length direction of the drainage pipe.
[0008] Optionally, an alkali-resistant glass fiber mesh cloth is arranged on the outside of the drainage tube, and the alkali-resistant glass fiber mesh cloth wraps the drainage tube and is fixed on the drainage tube.
[0009] Optionally, the connecting section between the transition pipe and the drainage pipe is higher than the water outlet end of the transition pipe.
[0010] Optionally, a suction fan is provided in the transition duct, and the suction fan is used to extract the air in the transition duct and absorb the seepage water in the drainage pipe to accelerate the entry of the water into the water collection well.
[0011] Optionally, an opening and closing piece for opening and closing the transition pipe is provided at the outlet end of the transition pipe, and a circulation pipe is provided between the opening and closing piece and the suction fan. One end of the circulation pipe is connected to the transition pipe, and the other end is connected to an adjacent transition pipe. After the opening and closing piece closes the transition pipe, the suction fan is started, and the suction fan guides the sucked air into the circulation pipe, and into the adjacent transition pipe, and enters the drainage pipe from the transition pipe to dry the gravel cushion layer.
[0012] Optionally, the connecting section between the circulation pipe and the transition pipe is located on the side of the transition pipe.
[0013] Optionally, the opening and closing component includes a sealing plate hinged on the end face of the transition pipe, the hinge axis of the sealing plate is perpendicular to the axial direction of the transition pipe, the sealing plate rotates and fits on the end face of the transition pipe to close the transition pipe, and a rubber plate is provided on the end face of the sealing plate facing the transition pipe, and the rubber plate is used to enter the transition pipe and seal the transition pipe outlet. The opening and closing component also includes a motor provided on the transition pipe for driving the sealing plate to rotate.
[0014] In the second aspect, the present application provides a post-cast strip drainage structure construction method, which adopts the following technical solutions: Optionally, a post-cast strip drainage structure construction method, used for constructing a post-cast strip drainage structure system, further comprising: S1: Tie the formwork inside the post-casting strip, tie the steel bars inside the formwork, connect the steel bars with the steel bars of the main body of the building, and fix the water stop strip on the steel bars according to the designed position. The water stop strip spans the connection between the main body of the building and the post-casting strip, and then cast the bottom plate of the post-casting strip; S2: After the bottom plate of the post-casting belt is formed, the water diversion pipe is tied in the post-casting belt, the water diversion pipe is tied to the steel bar along the length direction of the post-casting belt, and the alkali-resistant glass fiber mesh cloth is wrapped on the water diversion pipe; S3: pre-buried transition pipe leading to water collection inlet; S4: roughen the bottom plate of the post-casting zone, and after cleaning, lay a gravel cushion for water collection, and lay a waterproof layer on top of the gravel cushion. After the waterproof layer is laid, pour the concrete of the post-casting zone; S5: Install a circulation pipe between adjacent transition pipes, install the suction fan in the transition pipe, and then install the sealing plate at the opening of the transition pipe.
[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the post-cast belt backpack structure is completed in steps, the drainage pipe is fixed under the bottom steel bar, and a transition pipe leading to the water collection well is pre-buried to form a smooth drainage channel. When the post-cast belt leaks, the leaking water can be quickly discharged to the water collection well through the drainage pipe, avoiding adverse effects on subsequent construction and building structures; 2. The gravel cushion layer can collect and filter the leaking water, making it easier to collect the leaking water into the drainage pipe, thereby facilitating the discharge of the leaking water; at the same time, the gravel cushion layer filters the leaking water, reducing the possibility of blockage in the drainage pipe and the transition pipe; and the waterproof layer can effectively isolate the concrete slurry, reducing the possibility of concrete slurry entering the gravel cushion layer, and ensuring the smooth flow of the drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of a post-cast zone drainage structure system according to an embodiment of the present application; Figure 2 This is a schematic diagram of a transition pipe structure in a post-cast zone drainage structure system according to an embodiment of the present application; Figure 3 It is a schematic diagram of air drying and air circulation of a gravel cushion layer in a post-cast zone drainage structure system in an embodiment of the present application.
[0017] Explanation of the reference numerals: 1. Drainage pipe; 2. Transition pipe; 3. Gravel cushion layer; 4. Waterproof layer; 5. Waterstop; 6. Suction fan; 7. Circulation pipe; 8. Sealing plate; 9. Rubber plate; 10. Motor; 11. Post-cast strip. DETAILED DESCRIPTION
[0018] The following is combined with Figure 1-3 This application is described in further detail.
[0019] The present application embodiment discloses a post-cast zone drainage structure system. Figure 1 The drainage structure system of the post-cast belt includes a drainage pipe 1, a transition pipe 2, a crushed stone cushion layer 3 and a waterproof layer 4 arranged in the post-cast belt 11. The drainage pipe 1 is arranged along the length direction of the post-cast belt 11. The drainage pipe 1 is fixedly arranged on the bottom steel bar of the post-cast belt 11. The transition pipe 2 is connected with the drainage pipe 1 and extends into the water collection well. The crushed stone cushion layer 3 is laid at the bottom of the post-cast belt 11 and the drainage pipe 1 is buried. The thickness of the crushed stone cushion layer 3 is greater than 30 mm. Reference Figure 1 A plurality of water diversion holes are provided on the drainage pipe 1. The seepage water that penetrates into the gravel cushion layer 3 enters the drainage pipe 1 through the water diversion holes, then enters the transition pipe 2, and then is collected in the water collection well. The waterproof layer 4 is laid on the top of the gravel layer to separate the poured concrete and the gravel cushion layer 3. The waterproof layer 4 is a geotextile isolation layer.
[0020] After the backpack structure of the post-cast strip 11 is completed in steps, the drainage pipe 1 is fixed under the bottom steel bar, and the transition pipe 2 leading to the water collection well is pre-buried to form a smooth drainage channel. When the post-cast strip 11 leaks, the leaked water seeps into the gravel cushion layer 3, penetrates into the water collection pipe through the water diversion hole, and then is quickly discharged to the water collection well through the drainage pipe 1, avoiding adverse effects on subsequent construction and building structures; under the action of the gravel cushion layer 3, the leaked water is collected and filtered, and it is convenient to collect the leaked water into the drainage pipe 1, thereby facilitating the discharge of the leaked water; at the same time, the gravel cushion layer 3 filters the leaked water, reducing the possibility of blockage of the drainage pipe 1 and the transition pipe 2; and the waterproof layer 4 can effectively isolate the concrete slurry, reduce the possibility of concrete slurry entering the gravel cushion layer 3, and ensure that the drainage pipe 1 is unobstructed.
[0021] Reference Figure 1 In order to improve the anti-leakage effect of the post-cast strip 11, a waterstop 5 is provided at the connection joint between the post-cast strip 11 and the main building, and the two sides of the waterstop 5 are respectively located in the main building and the post-cast strip 11; under the action of the waterstop 5, the connection joint between the post-cast strip 11 and the main building is transversely partitioned, and the possibility of leakage water above the waterstop 5 penetrating into the post-cast strip 11 through the connection joint is reduced, thereby improving the anti-leakage effect of the post-cast strip 11.
[0022] Reference Figure 1 In the embodiment of the present application, the water diversion holes are arranged in a plum blossom shape on the water diversion pipe, and the plum blossom-shaped water diversion holes are evenly arranged along the length direction of the drainage pipe 1; the water diversion holes are arranged in a plum blossom shape, which increases the drainage area and efficiency of the water diversion pipe, thereby facilitating the rapid discharge of leakage water in the post-cast zone 11.
[0023] Reference Figure 1 In the embodiment of the present application, an alkali-resistant glass fiber mesh cloth is arranged on the outside of the drainage pipe 1, and the alkali-resistant glass fiber mesh cloth wraps the drainage pipe 1 and is fixed on the drainage pipe 1; under the action of the alkali-resistant glass fiber mesh cloth, the water diversion hole is blocked, thereby reducing the possibility of gravel entering the water diversion pipe through the water diversion hole, and reducing the possibility of blockage of the water diversion pipe and the transition pipe 2; and after the alkali-resistant glass fiber mesh cloth is firmly tied, the strength and durability of the drainage pipe 1 are improved, and the possibility of damage to the water diversion pipe during construction is reduced.
[0024] Reference Figure 1 In order to facilitate the transition pipe 2 to quickly discharge the leaked water in the water diversion pipe, the connecting section between the transition pipe 2 and the drainage pipe 1 is higher than the water outlet end of the transition pipe 2; the leaked water is quickly discharged along the inclined direction of the transition pipe, thereby accelerating the flow efficiency of the leaked water.
[0025] Reference Figure 2In order to further speed up the discharge efficiency of the leaked water, a suction fan 6 is arranged in the transition pipe 2, and the suction fan 6 is used to extract the air in the transition pipe 2 and absorb the seepage water in the drainage pipe 1 to accelerate the entry into the water collection well; when the seepage water flows out of the transition pipe 2, the suction fan 6 is started, and the suction fan 6 extracts the air in the transition pipe 2 and discharges it. The discharged air exerts a pulling force on the leaked water, thereby speeding up the discharge of the leaked water; at the same time, when the suction fan 6 extracts the air, the water vapor in the gravel cushion layer 3 is discharged from the drainage pipe 1 and the transition pipe 2, further improving the anti-leakage effect of the post-casting belt 11; at the same time, in the process of the suction fan 6 extracting the air in the gravel cushion layer 3, the gravel cushion layer 3 is air-dried to improve the bearing capacity of the gravel cushion layer 3.
[0026] Reference Figure 2 and Figure 3 In order to improve the drying effect of the suction fan 6 on the gravel cushion layer 3, an opening and closing member for opening and closing the transition pipe 2 is provided at the outlet end of the transition pipe 2, and a circulation pipe 7 is provided between the opening and closing member and the suction fan 6, one end of the circulation pipe 7 is connected with the transition pipe 2, and the other end is connected with the adjacent transition pipe 2; before drying the gravel cushion layer 3, firstly close the transition pipe 2 through the opening and closing member, start the suction fan 6, the suction fan 6 will guide the sucked air into the circulation pipe 7, and into the adjacent transition pipe 2, and enter the drainage pipe 1 from the transition pipe 2, and then be discharged from the water diversion hole, and the gravel cushion layer 3 is dried, and the air dried by the gravel cushion layer 3 is guided by the suction fan 6 and enters the water diversion pipe, and then returns to the transition pipe 2, so as to form a cycle, thereby improving the drying effect of the gravel cushion layer 3.
[0027] Reference Figure 2 and Figure 3 In the embodiment of the present application, the opening and closing part includes a sealing plate 8 hinged on the end face of the transition pipe 2, the hinge axis of the sealing plate 8 is perpendicular to the axial direction of the transition pipe 2, the sealing plate 8 rotates and fits on the end face of the transition pipe 2 to close the transition pipe 2, and a rubber plate 9 is provided on the end face of the sealing plate 8 facing the transition pipe 2. The rubber plate 9 is used to enter the transition pipe 2 and seal the outlet of the transition pipe 2. The opening and closing part also includes a motor 10 arranged on the transition pipe 2 for driving the sealing plate 8 to rotate; when the transition pipe 2 is closed, the motor 10 is started, and the motor 10 drives the sealing plate 8 to rotate, and the sealing plate 8 rotates toward the port of the transition pipe 2 to drive the sealing plate to enter the transition pipe 2, thereby sealing the transition pipe 2, and the operation is simple and convenient.
[0028] Reference Figure 2 and Figure 3 In order to reduce the leakage of water into the circulation pipe 7 through the transition pipe 2, the connecting section between the circulation pipe 7 and the transition pipe 2 is located on the side of the transition pipe 2.
[0029] The implementation principle of a post-cast strip drainage structure system in the embodiment of the present application is: After the backpack structure of the post-cast strip 11 is completed in steps, the drainage pipe 1 is fixed under the bottom steel bar, and the transition pipe 2 leading to the water collection well is pre-buried to form a smooth drainage channel. When the post-cast strip 11 leaks, the leaked water seeps into the gravel cushion layer 3, penetrates into the water collection pipe through the water diversion hole, and then is quickly discharged to the water collection well through the drainage pipe 1, avoiding adverse effects on subsequent construction and building structures; under the action of the gravel cushion layer 3, the leaked water is collected and filtered, and it is convenient to collect the leaked water into the drainage pipe 1, thereby facilitating the discharge of the leaked water; at the same time, the gravel cushion layer 3 filters the leaked water, reducing the possibility of blockage of the drainage pipe 1 and the transition pipe 2; and the waterproof layer 4 can effectively isolate the concrete slurry, reduce the possibility of concrete slurry entering the gravel cushion layer 3, and ensure that the drainage pipe 1 is unobstructed.
[0030] The embodiment of the present application discloses a post-cast strip drainage structure construction method, which is used to construct a post-cast strip drainage structure system, and further includes: S1: Tie the formwork in the post-casting strip 11, tie the steel bars in the formwork, connect the steel bars with the steel bars of the main body of the building, and fix the water stop strip 5 on the steel bars according to the designed position. The water stop strip 5 spans the connection between the main body of the building and the post-casting strip 11, and then cast the bottom plate of the post-casting strip 11; S2: After the bottom plate of the post-cast strip 11 is formed, a water diversion pipe is tied inside the post-cast strip 11, the water diversion pipe is tied to the steel bars along the length direction of the post-cast strip 11, and an alkali-resistant glass fiber mesh cloth is wrapped on the water diversion pipe; S3: pre-buried transition pipe 2 leading to the water collection inlet; S4: roughening the bottom plate of the post-casting zone 11, after roughening and cleaning, laying a gravel cushion layer 3 for water collection, and laying a waterproof layer 4 on the gravel cushion layer 3, and pouring the concrete of the post-casting zone 11 after the waterproof layer 4 is laid; S5: Install the circulation pipe 7 between adjacent transition pipes 2 , install the suction fan 6 in the transition pipe 2 , and then install the blocking plate 8 at the opening of the transition pipe 2 .
[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A post-cast zone drainage structure system, characterized in that: The invention comprises a drainage pipe (1), a transition pipe (2), a crushed stone cushion layer (3) and a waterproof layer (4) arranged in a post-cast strip (11); the drainage pipe (1) is arranged along the length direction of the post-cast strip (11); the drainage pipe (1) is fixedly arranged on the bottom steel bar of the post-cast strip (11); the transition pipe (2) is connected with the drainage pipe (1) and extends into a water collection well; the crushed stone cushion layer (3) is laid at the bottom of the post-cast strip (11) and the drainage pipe (1) is buried; a plurality of water diversion holes are opened on the drainage pipe (1); the seepage water that penetrates into the crushed stone cushion layer (3) enters the drainage pipe (1) through the water diversion holes, then enters the transition pipe (2), and then is collected into the water collection well; the waterproof layer (4) is laid on the top of the crushed stone layer to separate the poured concrete and the crushed stone cushion layer (3).
2. A post-cast zone drainage structure system according to claim 1, characterized in that: A water stop strip (5) is provided at the connection joint between the post-cast strip (11) and the main building body, and two sides of the water stop strip (5) are respectively located in the main building body and the post-cast strip (11).
3. A post-cast zone drainage structure system according to claim 1, characterized in that: The water diversion holes are arranged in a plum blossom shape on the water diversion pipe, and the plum blossom-shaped water diversion holes are evenly arranged along the length direction of the drainage pipe (1).
4. The post-cast zone drainage structure system according to claim 1, characterized in that: An alkali-resistant glass fiber mesh cloth is arranged on the outside of the drainage tube (1); the alkali-resistant glass fiber mesh cloth wraps the drainage tube (1) and is fixedly arranged on the drainage tube (1).
5. The post-cast zone drainage structure system according to claim 1, characterized in that: The connecting section between the transition pipe (2) and the drainage pipe (1) is higher than the water outlet end of the transition pipe (2).
6. The post-cast zone drainage structure system according to claim 1, characterized in that: A suction fan (6) is arranged in the transition pipe (2), and the suction fan (6) is used to extract the air in the transition pipe (2) and absorb the seepage water in the drainage pipe (1) to accelerate the water entering the water collection well.
7. A post-cast zone drainage structure system according to claim 6, characterized in that: The outlet end of the transition pipe (2) is provided with an opening and closing member for opening and closing the transition pipe (2), and a circulation pipe (7) is provided between the opening and closing member and the suction fan (6). One end of the circulation pipe (7) is connected to the transition pipe (2), and the other end is connected to the adjacent transition pipe (2). After the opening and closing member closes the transition pipe (2), the suction fan (6) is started, and the suction fan (6) guides the sucked air into the circulation pipe (7), and into the adjacent transition pipe (2), and enters the drainage pipe (1) from the transition pipe (2), so as to dry the gravel cushion layer (3).
8. The post-cast zone drainage structure system according to claim 7, characterized in that: The connecting section between the circulation pipe (7) and the transition pipe (2) is located on the side of the transition pipe (2).
9. The post-cast zone drainage structure system according to claim 7, characterized in that: The opening and closing member comprises a sealing plate (8) hinged on the end face of the transition pipe (2), the hinge axis of the sealing plate (8) being perpendicular to the axial direction of the transition pipe (2), the sealing plate (8) being rotated to fit on the end face of the transition pipe (2) to close the transition pipe (2), the sealing plate (8) being provided with a rubber plate (9) on the end face facing the transition pipe (2), the rubber plate (9) being used to enter the transition pipe (2) to seal the outlet of the transition pipe (2), and the opening and closing member further comprises a motor (10) provided on the transition pipe (2) for driving the sealing plate (8) to rotate.
10. A method for constructing a post-cast strip drainage structure, used for constructing a post-cast strip drainage structure system as claimed in any one of claims 1 to 9, characterized in that: Also includes; S1: Tie the formwork inside the post-cast strip (11), tie the steel bars inside the formwork, connect the steel bars with the steel bars of the main body of the building, and fix the water stop strip (5) on the steel bars according to the designed position. The water stop strip (5) spans the connection between the main body of the building and the post-cast strip (11), and then cast the bottom plate of the post-cast strip (11); S2: After the bottom plate of the post-cast strip (11) is formed, a water diversion pipe is tied inside the post-cast strip (11), the water diversion pipe is tied to the steel bars along the length direction of the post-cast strip (11), and an alkali-resistant glass fiber mesh cloth is wrapped on the water diversion pipe; S3: pre-buried transition pipe (2) leading to the water collection inlet; S4: roughening the bottom plate of the post-casting strip (11), after which a crushed stone cushion layer (3) is laid for water collection, and a waterproof layer (4) is laid on top of the crushed stone cushion layer (3). After the waterproof layer (4) is laid, concrete of the post-casting strip (11) is poured; S5: Install a circulation pipe (7) between adjacent transition pipes (2), install a suction fan (6) in the transition pipe (2), and then install a blocking plate (8) at the opening of the transition pipe (2).