Advanced water stop structure for post-cast strip
By setting an advanced waterstop and drainage components at the bottom of the post-pouring strip, the problems of limited waterproofing performance and severe water seepage in the post-pouring strip are solved, achieving better waterproofing and drainage effects and enhancing the structural stability and strength of the base plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technologies, the waterproofing performance of post-pouring strips is limited, groundwater seepage is severe, and there is a lack of effective drainage, resulting in instability of the base slab structure.
An advanced waterstop is installed at the bottom of the post-pouring strip, including expansion joints and grouting materials. Waterstop tape is used, and drainage components such as drainage pipes and water collection pipes are installed on the waterstop steel plate. Combined with a steel mesh cage to enhance the structural strength, an effective waterproof and drainage system is formed.
It improves the waterproofness and structural stability of the base plate, effectively prevents groundwater infiltration and drains seepage water through drainage components, prevents seepage water from overflowing the ground, and enhances the overall structural strength and drainage effect of the base plate.
Smart Images
Figure CN224016381U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building construction technical field especially relates to a post-pouring zone advanced water stop structure. BACKGROUND
[0002] With the development of the construction industry, underground engineering construction is more and more, foundation after completion can carry out the follow-up process such as outer wall waterproof and earthwork backfill. After the main body is completed, the concrete of post-pouring zone is poured again, and the water stop belt made in the position of post-pouring zone and before pouring of post-pouring zone is called advanced water stop belt.
[0003] In the prior art, in order to improve the waterproof performance of post-pouring zone, a coating waterproof layer is generally coated on the surface of concrete, and a fine stone concrete protection layer is arranged on the coating waterproof layer. Such technology is relatively simple, the waterproof structure is single, the waterproof performance is general, and the drainage effect is not good when groundwater permeation is serious. UTILITY MODEL CONTENT
[0004] Therefore, the utility model aims at providing a post-pouring zone advanced water stop structure which is simple in structure and convenient to drain.
[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a post-pouring zone advanced water stop structure, which comprises a plain concrete layer arranged above the ground, wherein the plain concrete layer is provided with an advanced water stop belt which is wide at the top and narrow at the bottom, a waterproof concrete layer is arranged above the plain concrete layer, and the waterproof concrete layer is adapted to the advanced water stop belt.
[0006] The advanced water stop belt comprises a expansion joint, and the expansion joint is filled with a joint filling material, the bottom of the joint filling material is attached to a water stop adhesive tape, and a post-pouring zone is arranged above the advanced water stop belt.
[0007] The two sides of the post-pouring zone are foundation slabs, and a hanging net is bound vertically between the post-pouring zone and the foundation slabs, a water stop steel plate is arranged transversely in the middle of the hanging net, and a drainage member is arranged on the side of the water stop steel plate which faces the foundation slabs.
[0008] The above-mentioned technical scheme has the beneficial effects that the waterproof performance of the foundation slab is further improved by arranging the advanced water stop belt at the bottom of the post-pouring zone, groundwater is first collected by the advanced water stop belt, the joint filling material in the expansion joint arranged in the advanced water stop belt can avoid deformation of the foundation slab caused by serious groundwater permeation, so that the structure of the foundation slab is more stable, further, groundwater permeation is blocked by the water stop steel plate between the post-pouring zone and the foundation slabs, so that the groundwater can be prevented from overflowing the ground, and the drainage member is arranged on the side of the water stop steel plate which faces the foundation slabs, so that the groundwater can be collected in the drainage member along the water stop steel plate and drained out, and the groundwater can be prevented from remaining in the construction joint for a long time.
[0009] Further, the drainage member comprises a drainage pipe, a pipe wall of the drainage pipe is provided with a slot in a length direction of the drainage pipe, the water stop steel plate is provided with a recess on two sides of the water stop steel plate and the recess on a side of the water stop steel plate facing the base slab is inserted into the slot.
[0010] Beneficial effect: when underground water seeps upward through the construction joint between the post-pouring belt and the base slab, the water is first blocked by the water stop steel plate and then seeps into the drainage pipe through the recess of the water stop steel plate.
[0011] Further, the drainage pipe is arranged along the extension direction of the post-pouring belt and is arranged in a front-rear direction.
[0012] Beneficial effect: the underground water seeping into the drainage pipe can flow out smoothly.
[0013] Further, a plurality of groups of water collecting pipes are arranged on the drainage pipe in a spaced manner, the water collecting pipes are perpendicular to the extension direction of the post-pouring belt, and the water collecting pipes are fixed with water filtering nets at ends of the water collecting pipes.
[0014] Beneficial effect: the construction joint is formed between the post-pouring belt and the base slab, the water seeps more at the position of the construction joint, the water collecting pipes collect the water seeping at the construction joint between the post-pouring belt and the base slab, and the water filtering nets prevent the concrete from entering the water collecting pipes during pouring of the post-pouring belt.
[0015] Further, the waterproof concrete layer comprises two layers of concrete layers, and a water stop adhesive tape is attached to the upper layer of the two layers of concrete layers.
[0016] Beneficial effect: the water stop adhesive tape can block the upward seepage of underground water and further improve the waterproof performance of the entire base slab structure.
[0017] Further, an auxiliary steel mesh is arranged in the advanced water stop belt, and two layers of steel mesh cages are arranged in the base slab and the post-pouring belt, and the steel mesh cages are fixedly connected with the auxiliary steel mesh.
[0018] Beneficial effect: the steel mesh cage and the auxiliary steel mesh are connected into an integral whole, and the structural strength of the structure is improved.
[0019] Further, the drainage member is fixedly bound to the steel mesh cage.
[0020] Beneficial effect: the drainage member is provided with a pre-embedding fixing mode before pouring of the concrete. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a schematic view of a transverse section of the utility model;
[0022] Figure 2 isFigure 1 Partial enlarged view of middle A
[0023] In the figure: 1-ground, 2-concrete layer, 3-waterproof concrete layer, 4-advance water stop belt, 5-filling material, 6-waterproof adhesive tape, 7-post-cast strip, 8-hanging net, 9-waterproof steel plate, 10-foundation bottom plate, 11-catch basin, 12-drain pipe, 13-assistant reinforcement net, 14-reinforcement net cage, 101-slot, 111-filtration net. DETAILED DESCRIPTION
[0024] The utility model discloses a kind of advance water stop structures of post-cast strip, which is further described in detail below in combination with the drawings and specific embodiments.
[0025] As Figures 1-2 Indicated, a kind of advance water stop structures of post-cast strip of the utility model, including setting on the ground 1 upper concrete layer 2, concrete layer 2 is reserved with upper wide lower narrow advance water stop belt 4, the upper side of concrete layer 2 is provided with waterproof concrete layer 3, waterproof concrete layer 3 is adapted to reserve advance water stop belt 4;Advance water stop belt 4 includes expansion joint, expansion joint is filled with filling material 5, the bottom of filling material 5 is pasted waterproof adhesive tape 6, the upper side of advance water stop belt 4 is provided with post-cast strip 7;The two sides of post-cast strip 7 are foundation bottom plate 10, and post-cast strip 7 is bound with foundation bottom plate 10 between vertical setting hanging net 8, waterproof steel plate 9 is set in the middle part of hanging net 8 transversely, waterproof steel plate 9 side towards foundation bottom plate 10 is provided with drainage component, drainage component includes drain pipe 12, the pipe wall of drain pipe 12 is set with the slot 101 of length along the extension direction of drain pipe 12, the two sides of waterproof steel plate 9 extend downwardly inclined notches, and the notch of waterproof steel plate 9 side towards foundation bottom plate 10 is adapted to be inserted in slot 101.
[0026] In the embodiment, the notch of waterproof steel plate 9 is adapted to be inserted with the slot 101 of drain pipe 12, the interface of both is closely attached, to prevent concrete from entering drain pipe 12 when pouring concrete, when underground seepage water passes through the construction joint of post-cast strip 7 and foundation bottom plate 10, is first blocked by waterproof steel plate 9, then seeps into drain pipe 12 along the lower surface of waterproof steel plate 9, drain pipe 12 is set along the extension direction of post-cast strip 7, and drain pipe 12 is inclinedly set in front-back direction, the inclined setting of drain pipe 12 can avoid seepage water from adhering on the pipe wall of drain pipe 12, so that seepage water entering drain pipe 12 can be smoothly discharged along the inclined slope.
[0027] In the embodiment, the drainage pipe 12 is connected with several groups of water collecting pipes 11 at intervals, the water collecting pipes 11 are perpendicular to the extension direction of the post-cast strip 7, and the end of the water collecting pipe 11 is fixed with a water filtering net 111, the water filtering net 111 is located at the gap between the post-cast strip 7 and the foundation bottom plate 10, when the post-cast strip 7 is constructed, the water filtering net 111 can prevent the concrete from entering the water collecting pipe 11, so that the water collecting pipe 11 whose end is not blocked by the concrete is located at the gap between the post-cast strip 7 and the foundation bottom plate 10, and the seepage water can flow into the drainage pipe 12 through the water collecting pipe 11 when the seepage water passes through the construction joint, which can achieve better water collecting and draining effect when the underground seepage water is serious.
[0028] In the embodiment, the waterproof concrete layer 3 includes two layers of concrete layers, the lower concrete layer is pasted with a water stop tape 6, on one hand, the water stop tape 6 can block the upward seepage of the underground water, and enhance the waterproof performance of the bottom plate structure, on the other hand, it is convenient for construction, the covering pasting of the water stop tape 6 can ensure the construction flatness of the water stop tape 6, and the concrete layers are arranged above and below the water stop tape 6, which can improve the service life of the water stop tape 6 as a whole.
[0029] In the embodiment, the auxiliary steel mesh 13 is arranged in the advanced water stop tape 4 to enhance the tensile property of the concrete, the steel mesh cage 14 is arranged in the foundation bottom plate 10 and the post-cast strip 7 in two layers, the steel mesh cage 14 is fixedly connected with the auxiliary steel mesh 13, so that the steel mesh cage 14 and the auxiliary steel mesh 13 are connected as a whole, the structural strength of the whole bottom plate structure is enhanced, and the drainage member is fixedly bound on the steel mesh cage 14, which is convenient for pre-buried positioning and construction.
[0030] The utility model discloses a kind of advanced waterstop structures of post-pouring belt, including foundation slab 10, post-pouring belt 7, drainage pipe 12, water-collecting pipe 11 and waterproof steel plate 9, wherein, post-pouring belt 7 is arranged in the construction joint between foundation slab 10 and post-pouring belt 7, waterproof steel plate 9 is arranged in the construction joint of post-pouring belt 7 and foundation slab 10, and drainage pipe 12 is arranged in the construction joint of post-pouring belt 7 and foundation slab 10.
[0031] The utility model discloses a kind of advanced waterstop structures of post-pouring belt, including foundation slab 10, post-pouring belt 7, drainage pipe 12, water-collecting pipe 11 and waterproof steel plate 9, wherein, post-pouring belt 7 is arranged in the construction joint between foundation slab 10 and post-pouring belt 7, waterproof steel plate 9 is arranged in the construction joint of post-pouring belt 7 and foundation slab 10, and drainage pipe 12 is arranged in the construction joint of post-pouring belt 7 and foundation slab 10.
[0032] The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A pre-sealing structure for post-cast strips, characterized in that, Includes a plain concrete layer (2) set above the ground (1), the plain concrete layer (2) having a pre-cut waterstop (4) that is wider at the top and narrower at the bottom, and a waterproof concrete layer (3) set above the plain concrete layer (2), the waterproof concrete layer (3) being adapted to the pre-cut waterstop (4). The advanced waterstop (4) includes an expansion joint, which is filled with a sealant (5). Waterstop tape (6) is pasted to the bottom of the sealant (5), and a post-pouring strip (7) is provided above the advanced waterstop (4). The post-cast strip (7) is flanked by foundation slabs (10), and vertically arranged netting (8) is tied between the post-cast strip (7) and the foundation slabs (10). A water-stop steel plate (9) is horizontally arranged in the middle of the netting (8), and a drainage component is arranged on the side of the water-stop steel plate (9) facing the foundation slabs (10).
2. The advanced water-stopping structure for post-cast strips according to claim 1, characterized in that, The drainage component includes a drain pipe (12), the wall of the drain pipe (12) has a continuous groove (101) along the extension direction of the drain pipe (12), the two sides of the water-stop steel plate (9) have downwardly extending recesses, and the recess on the side of the water-stop steel plate (9) facing the foundation plate (10) is adapted to be inserted into the groove (101).
3. The advanced water-stopping structure for post-cast strips according to claim 2, characterized in that, The drain pipe (12) is arranged along the extension direction of the post-pouring strip (7), and the drain pipe (12) is inclined in the front-back direction.
4. The advanced water-stopping structure for post-cast strips according to claim 2, characterized in that, The drainage pipe (12) is connected to several sets of water collection pipes (11) at intervals. The water collection pipes (11) are perpendicular to the extension direction of the post-pouring strip (7), and the end of the water collection pipe (11) is fixed with a filter screen (111). The filter screen (111) is located in the gap between the post-pouring strip (7) and the foundation plate (10).
5. A pre-stopping structure for post-cast strips according to claim 1 or 2, characterized in that, The waterproof concrete layer (3) consists of two concrete layers, with a waterproof tape (6) pasted on the top of the lower concrete layer.
6. A pre-stopping structure for post-cast strips according to claim 1 or 2, characterized in that, An auxiliary steel mesh (13) is installed inside the advanced waterstop (4), and two layers of steel mesh cages (14) are laid inside the foundation slab (10) and the post-cast strip (7). The steel mesh cages (14) are fixedly connected to the auxiliary steel mesh (13).
7. The advanced water-stopping structure for post-cast strips according to claim 6, characterized in that, The drainage components are fixedly tied to the steel mesh cage (14).