Anti-seepage pre-embedded drainage system for basement post-cast strip
By setting drainage grooves and a main drainage pipe system at the cold joints, combined with waterproof membrane and drainage ditches, the problem of water seepage in the post-construction strip of the basement was solved, achieving effective waterproofing and improved structural safety.
Patent Information
- Application Number
- CN202423237190.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, water seepage is prone to occur at the cold joints of post-cast strips in basements, leading to safety hazards and ground cracking, and the water-stop steel plate cannot effectively waterproof the area.
A drainage groove is set at the cold joint and filled with washed gravel, which is then connected to the main drainage pipe and the collection well. Combined with waterproof membrane and drainage ditch, a double protection system is formed to ensure that groundwater is discharged through the drainage system.
It effectively prevents groundwater leakage, improves the structural safety of the basement, avoids the foundation slab from being breached by groundwater, ensures the ground is dry, and increases drainage adaptability and overall mechanical performance.
Smart Images
Figure CN223805559U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to post-pouring band technical field especially relates to basement post-pouring band anti-seepage preburied drainage system. BACKGROUND
[0002] In the construction process of basement floor, in order to prevent the harmful cracks that may be caused by uneven self shrinkage or uneven settlement of reinforced concrete structure, according to the design or construction specification requirement, post-pouring band is left in the corresponding position of foundation floor, and after the building reaches settlement stability, post-pouring band is poured again, and cold joint is formed at the connection of front and back concrete.
[0003] When pouring post-pouring band, in order to prevent groundwater from seeping from the cold joint, the existing method is to increase the water stop steel plate at the cold joint, but because the lower concrete of the water stop steel plate is in a local closed space, the vibrating rod cannot be vibrated, a large cavity is formed, the waterproof effect is poor, and the cold joint often seeps, which affects the normal use of the building, produces a safety hazard, and even when the groundwater pressure is too large, the ground will be penetrated, causing the ground to crack. UTILITY MODEL CONTENTS
[0004] The utility model provides basement post-pouring band anti-seepage preburied drainage system to solve the problem of post-pouring band seepage, thereby reducing the safety hazard, and has the characteristics of wide application range and strong practicability.
[0005] The utility model employs the technical scheme: basement post-pouring band anti-seepage preburied drainage system, including front pouring area, post-pouring band and water collecting well, the post-pouring band is arranged between the front pouring area of two sides, be provided with the water stop steel plate on the cold joint between the front pouring area and post-pouring band, the top of the front pouring area and post-pouring band at the cold joint is provided with drainage groove, the drainage groove is filled with water-washed guami stone, the top of the front pouring area and post-pouring band is equipped with the fine stone concrete leveling layer of integrative moulding, the post-pouring band is preburied with main drain pipe, and the drainage groove of two sides is communicated with the main drain pipe through branch pipe, and the both ends of the main drain pipe are communicated with water collecting well.
[0006] As further improvement, the top of the main drain pipe is provided with a plurality of drainage branch pipes communicated with it, the fine stone concrete leveling layer above the drainage branch pipe is provided with drainage ditch, and the drainage ditch is communicated with the main drain pipe through the drainage branch pipe.
[0007] Further, the installation step is arranged on the drainage ditch, and the cover plate is arranged on the installation step.
[0008] Further, the drainage branch pipes are arranged at equal intervals, and one end of the branch pipe away from the drainage groove is connected with the drainage branch pipe.
[0009] Further, the top of the drainage branch pipe is provided with a floor drain.
[0010] Further, a plurality of waterproof coiled materials are arranged between the water-washed guami stone and the fine stone concrete leveling layer.
[0011] Further, raft floor ribs are arranged on the upper part of the front pouring area and the post-pouring belt, and raft bottom ribs are arranged on the lower part of the front pouring area and the post-pouring belt, and the main drainage pipe is arranged below the raft floor ribs.
[0012] Further, the branch pipe is arranged in an inclined manner, and the end of the branch pipe close to the drainage groove is the highest.
[0013] Beneficial effects
[0014] Compared with the prior art, the utility model has the following advantages:
[0015] 1. By setting the drainage groove above the cold joint and filling the water-washed guami stone in the drainage groove, when the underground water seeps upwards from the cold joint, the water reaches the drainage groove and flows into the main drainage pipe from the branch pipe for drainage, and the drained water finally flows into the water collecting wells at both ends for collection, so that the seepage of the underground water is effectively prevented, and the safety of the basement structure is effectively improved, and the basement floor is also prevented from being broken by the underground water, thereby playing a role in protecting the ground.
[0016] 2. By setting the drainage ditch above the main drainage pipe, when the drainage amount is too large, the water in the main drainage pipe overflows to the drainage ditch through the drainage branch pipe for drainage, so that the overall drainage amount is increased, a double protection effect is achieved, the adaptability is increased, and the drainage work in different environments is handled, so that the integrity of the basement floor is ensured.
[0017] 3. By arranging a plurality of waterproof coiled materials between the water-washed guami stone and the fine stone concrete leveling layer, the water overflowing from the cold joint can only flow into the main drainage pipe from the branch pipe for drainage under the blockage of the waterproof coiled materials, so that the seepage of the underground water is effectively prevented, and the dryness of the top surface of the basement floor is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a front view structural schematic diagram of the utility model;
[0019] Figure 2 It is a front view structural schematic diagram of the utility model; Figure 1
[0020] Figure 3 It is a practical application structural schematic diagram of the utility model;
[0021] Figure 4 For Figure 3 Structure enlarged schematic view at B in the middle.
[0022] Wherein: 1-pouring belt, 2-pouring area, 3-water stop steel plate, 4-drainage groove, 5-washed melon stone, 6-waterproof roll material, 7-fine stone concrete leveling layer, 8-main drainage pipe, 9-branch pipe, 10-drainage ditch, 11-cover plate, 12-raft plate web, 13-raft plate bottom bar, 14-floor drain, 15-drainage branch pipe, 16-cold joint, 17-installation step, 18-catch basin. DETAILED DESCRIPTION
[0023] The utility model will be further explained in connection with specific implementation examples in the drawings.
[0024] Referring to Figures 1-4As shown, the basement post-cast strip anti-seepage pre-buried drainage system, including front pouring area 2, post-cast strip 1 and water collecting well 18, post-cast strip 1 is arranged between two sides of front pouring area 2, water stop steel plate 3 is arranged on cold joint 16 between front pouring area 2 and post-cast strip 1, drainage groove 4 is opened in the top of front pouring area 2 and post-cast strip 1 at cold joint 16, water-washed guami stone 5 is filled in drainage groove 4, integrally-formed fine stone concrete leveling layer 7 is arranged above front pouring area 2 and post-cast strip 1, main drainage pipe 8 is pre-buried in post-cast strip 1, branch pipe 9 is communicated between two sides of drainage groove 4 and main drainage pipe 8, water collecting well 18 is communicated at both ends of main drainage pipe 8, water-washed guami stone 5 has good water seepage function, plays a supporting role at the same time, ensures that the water in drainage groove 4 can flow into branch pipe 9, water stop steel plate 3 plays a preliminary water blocking role, thereby reducing a part of water overflow, by arranging drainage groove 4 above cold joint 16 and filling water-washed guami stone 5 in drainage groove 4, when underground water seeps from cold joint 16 upwards, reaches drainage groove 4 and flows into main drainage pipe 8 from branch pipe 9 for drainage, the drained water finally flows into water collecting well 18 at both ends through main drainage pipe 8 for collection, thereby effectively preventing underground water from continuing to seep upwards, thereby ensuring that the basement floor will not appear seepage phenomenon, effectively improving the safety of basement structure, at the same time, the basement floor is also avoided from being broken by underground water, plays a role of protecting the ground, by arranging drainage ditch 10 above main drainage pipe 8, when the drainage capacity is too large, the water in main drainage pipe 8 overflows to drainage ditch 10 through drainage branch pipe 15 for drainage, thereby increasing the overall drainage capacity, plays a double protection role, increases adaptability, so as to handle the drainage work in different environments, thereby ensuring the integrity of the basement floor, by arranging multiple waterproof coiled materials 6 between water-washed guami stone 5 and fine stone concrete leveling layer 7, the water overflowing from cold joint 16 can only flow into main drainage pipe 8 from branch pipe 9 for drainage under the blockage of waterproof coiled material 6, thereby effectively preventing underground water from continuing to seep upwards, ensuring the dryness of the top surface of the basement floor, by arranging raft web 12 and raft bottom rib 13, the overall mechanical properties of the floor are effectively increased, so that the pouring layer is more solid and firm, and the anti-collapse performance is better, main drainage pipe 8 is placed below raft web 12, plays a fixing role, prevents movement during pouring, so as to ensure that main drainage pipe 8 is accurately installed in place, the whole post-cast strip pre-buried pipe structure effectively discharges the water overflowing from the cold joint in time, prevents the overflow from forming a safety hazard on the ground, effectively improves safety.
[0025] Specifically, multiple drainage branch pipes 15 are connected to the main drainage pipe 8 above it. A drainage ditch 10 is opened in the fine stone concrete leveling layer 7 above the drainage branch pipes 15. The drainage ditch 10 is connected to the main drainage pipe 8 through the drainage branch pipes 15. When the drainage volume is too large, the water in the main drainage pipe 8 overflows into the drainage ditch 10 through the drainage branch pipes 15 for drainage, thereby increasing the overall drainage volume and playing a dual protection role, increasing adaptability, so as to handle drainage work in different environments, thereby ensuring the integrity of the basement floor slab.
[0026] Preferably, the drainage ditch 10 is provided with an installation step 17, and the installation step 17 is provided with a cover plate 11. The cover plate 11 serves a protective function to prevent objects above from falling into the drainage ditch 10.
[0027] Furthermore, multiple drainage branch pipes 15 are arranged at equal intervals, and one end of the branch pipe 9, which is far away from the drainage groove 4, is connected to the drainage branch pipe 15, so as to ensure that after the main drainage pipe 8 is full of water, it can flow into the drainage ditch 10 through multiple drainage branch pipes 15 for timely discharge.
[0028] Furthermore, a floor drain 14 is provided at the top of the drainage branch pipe 15 to prevent objects above from falling into the drainage branch pipe 15 and effectively avoid blockage of the drainage branch pipe 15.
[0029] Furthermore, multiple layers of waterproof membrane 6 are installed between the washed gravel 5 and the fine stone concrete leveling layer 7. The waterproof membrane 6 can be made of asphalt waterproof material, polymer modified waterproof membrane, or synthetic polymer waterproof membrane. This ensures that water overflowing from the cold joint 16 is blocked by the waterproof membrane 6 and can only flow into the main drainage pipe 8 through the branch pipe 9 for drainage. This effectively prevents groundwater from continuing to seep upward, ensures the dryness of the top surface of the fine stone concrete leveling layer 7, avoids the formation of water accumulation, and improves safety.
[0030] Furthermore, the upper part of the pre-pouring area 2 and the post-pouring strip 1 is provided with raft slab top reinforcement 12, and the lower part of the pre-pouring area 2 and the post-pouring strip 1 is provided with raft slab bottom reinforcement 13. The main drainage pipe 8 is arranged below the raft slab top reinforcement 12, which effectively increases the overall mechanical properties of the bottom slab, making the poured layer more solid and firm, and improving the anti-collapse performance. Placing the main drainage pipe 8 below the raft slab top reinforcement 12 plays a fixing role, preventing movement during pouring, so as to ensure that the main drainage pipe 8 is accurately installed in place, so that the drainage pipe 8 can drain smoothly. The drainage pipe 8 is arranged at an angle to make the drainage smoother.
[0031] Furthermore, the branch pipe 9 is arranged at an angle, with the end of the branch pipe 9 closest to the drainage groove 4 being the highest point, so that the water collected in the drainage groove 4 can quickly flow through the branch pipe 9 to the main drainage pipe 8 for drainage, effectively improving drainage efficiency.
[0032] The basement post-cast strip anti-seepage pre-embedded drainage system of the embodiment prevents the seepage of groundwater by setting the drainage groove 4 above the cold joint 16 and filling the water-washed guami stone 5 in the drainage groove 4, so that when the groundwater seeps upwards from the cold joint 16, it flows into the main drainage pipe from the branch pipe 9 after reaching the drainage groove 4, thereby effectively preventing the groundwater from continuing to seep upwards and ensuring that the basement floor does not appear to seep, effectively improving the safety of the basement structure, and also avoiding the basement floor from being broken by the groundwater, thereby playing a role in protecting the ground. When the drainage capacity is too large, the water in the main drainage pipe 8 is overflowed into the drainage ditch 10 through the drainage branch pipe 15, thereby increasing the overall drainage capacity and playing a double protection role, increasing the adaptability to handle the drainage work in different environments, thereby ensuring the integrity of the basement floor. By setting multiple waterproof coiled materials 6 between the water-washed guami stone 5 and the fine stone concrete leveling layer 7, the water overflowing from the cold joint 16 can only flow into the main drainage pipe 8 from the branch pipe 9 for drainage under the blockage of the waterproof coiled material 6, thereby effectively preventing the groundwater from continuing to seep upwards and ensuring the dryness of the top surface of the basement floor. By setting the raft web 12 and the raft bottom rib 13, the overall mechanical properties of the floor are effectively increased, the pouring layer is more solid and firm, and the anti-collapse performance is better. The main drainage pipe 8 is placed below the raft web 12, thereby playing a fixing role and preventing movement during pouring to ensure that the main drainage pipe 8 is accurately installed in place. The post-cast strip pre-embedded pipe arrangement structure effectively discharges the water overflowing from the cold joint in time to solve the problem of post-cast strip seepage, thereby reducing safety hazards and effectively improving safety.
[0033] The above is only the preferred embodiment of the utility model, and it should be noted that for those skilled in the art, without departing from the structure of the utility model, a number of modifications and improvements can be made, which will not affect the effect and practicality of the utility model.
Claims
1. A basement post-cast strip anti-leakage pre-embedded drainage system, characterized in that, The application relates to a construction method for a building, which comprises a front pouring area (2), a post-pouring belt (1) and a water collecting well (18), the post-pouring belt (1) is arranged between the front pouring areas (2) on two sides, a water stop steel plate (3) is arranged on a cold joint (16) between the front pouring area (2) and the post-pouring belt (1), a drainage groove (4) is arranged on the top of the front pouring area (2) and the post-pouring belt (1) at the cold joint (16), the drainage groove (4) is filled with water-washed guami stone (5), an integrally-formed fine stone concrete leveling layer (7) is arranged above the front pouring area (2) and the post-pouring belt (1), a main drainage pipe (8) is pre-embedded in the post-pouring belt (1), the drainage grooves (4) on two sides are communicated with the main drainage pipe (8) through branch pipes (9), and the main drainage pipe (8) is communicated with the water collecting well (18) at two ends.
2. The basement post-cast strip anti-leakage pre-embedded drainage system according to claim 1, characterized in that, A plurality of drainage branch pipes (15) are arranged above the main drainage pipe (8) and communicated with the main drainage pipe (8), drainage ditches (10) are arranged in the fine stone concrete leveling layer (7) above the drainage branch pipes (15), and the drainage ditches (10) are communicated with the main drainage pipe (8) through the drainage branch pipes (15).
3. The basement post-cast strip anti-leakage pre-embedded drainage system according to claim 2, characterized in that, A mounting step (17) is arranged on the drainage ditch (10), and a cover plate (11) is arranged on the mounting step (17).
4. The basement post-cast strip anti-leakage pre-embedded drainage system according to claim 2, characterized in that, The drainage branch pipes (15) are arranged at equal intervals, and one end of the branch pipe (9) away from the drainage groove (4) is connected with the drainage branch pipe (15).
5. The basement post-cast strip anti-leakage pre-embedded drainage system according to claim 2, characterized in that, A floor drain (14) is arranged on the top of the drainage branch pipe (15).
6. The basement post-cast strip anti-leakage pre-embedded drainage system according to claim 1, characterized in that, A plurality of waterproof coiled materials (6) are arranged between the water-washed guami stone (5) and the fine stone concrete leveling layer (7).
7. The basement post-cast strip anti-leakage pre-embedded drainage system according to claim 1, characterized in that, A raft face rib (12) is arranged on the top of the front pouring area (2) and the post-pouring belt (1), a raft bottom rib (13) is arranged on the bottom of the front pouring area (2) and the post-pouring belt (1), and the main drainage pipe (8) is arranged below the raft face rib (12).
8. The basement post-cast strip anti-leakage pre-embedded drainage system according to claim 1, characterized in that, The branch pipe (9) is arranged in an inclined mode, and the end of the branch pipe (9) close to the drainage groove (4) is the highest.