A post-cast strip anti-seepage system for the basement floor slab

Abstract

The present application relates to a basement floor post-casting belt anti-leakage system, and relates to the technical field of basement water leakage protection technology, which includes a base plate, a post-casting belt is reserved on the base plate, and a concrete layer is poured in the post-casting belt; a water stop strip is arranged between the concrete layer and the base plate, and a groove-shaped groove is opened directly below the post-casting belt; a blind ditch is opened below the groove-shaped groove, and a drainage pipe is pre-buried in the blind ditch; graded sand and gravel are backfilled around the groove-shaped groove, and a leakage collection and guidance device is arranged in the groove-shaped groove, and the leakage collection and guidance device is used to collect the leakage in the post-casting belt and finally guide it into the drainage pipe in the blind ditch; water diversion holes are opened on the pipe walls on both sides of the drainage pipe along the length direction of the drainage pipe, and the surface of the water diversion hole is covered with geotextile. The present application has the effect of improving the leakage problem at the post-casting belt of the basement floor.

Description

Technical Field

[0001] This application relates to the field of basement leakage prevention technology, and particularly relates to a post-cast strip anti-seepage system for the basement floor slab. Background Art

[0002] A post-cast strip is a temporary construction joint left at corresponding positions of the foundation slab, wall, and beam according to design or construction specification requirements to prevent harmful cracks that may occur in the cast-in-place reinforced concrete structure due to uneven self-shrinkage or settlement.

[0003] With the rapid development of urbanization construction, in order to make full use of underground space, the basements of urban construction are getting deeper and deeper. In the face of the large area of the basement floor slab, post-cast strips are usually used as temporary construction joints to avoid the adverse effects caused by the shrinkage and settlement of the soil structure. However, the position of the post-cast strip on the floor slab is a weak part in the control of basement seepage and leakage, belonging to a high-incidence area of leakage.

[0004] Regarding the above related technologies, the inventor believes that due to reasons such as rushing to work, closing the post-cast strip in advance, or not taking targeted drainage measures according to the project geological conditions, and lax quality control during the construction of the post-cast strip, there are many phenomena of cracking and leakage in the post-cast strip, especially in areas with high groundwater levels and projects with weak pervious soil; after the post-cast strip is closed, under the long-term action of underground confined water on the foundation slab, coupled with insufficient design considerations or unclean cleaning of construction residues generated by chiseling the concrete on both sides of the post-cast strip, great potential for water seepage will be left. Summary of the Invention

[0005] In order to improve the leakage problem at the post-cast strip of the basement floor slab, the purpose of this application is to provide a post-cast strip anti-seepage system for the basement floor slab.

[0006] A post-cast strip anti-seepage system for the basement floor slab provided by this application adopts the following technical solutions:

[0007] A post-cast strip anti-seepage system for the basement floor slab includes: a floor slab, a post-cast strip is reserved on the floor slab, and a concrete layer is poured in the post-cast strip; a water stop strip is arranged between the concrete layer and the floor slab, a groove-shaped recess is opened directly below the post-cast strip; a blind drain is opened below the groove-shaped recess, and a drain pipe is embedded in the blind drain; graded sand and gravel is backfilled around the groove-shaped recess, and a leakage collection and guiding device is arranged in the groove-shaped recess, and the leakage collection and guiding device is used to collect the leakage in the post-cast strip and finally guide it into the drain pipe in the blind drain; water guiding holes are opened along the length direction of the drain pipe on both side walls of the drain pipe, and the surface of the water guiding holes is covered with geotextile.

[0008] By adopting the above technical solution, after a groove-shaped recess and a blind ditch are provided below the post-cast strip of the floor slab, the groove-shaped recess can seal the area below the post-cast strip, thereby forming a blind ditch drainage, guiding and drainage system below the post-cast strip; the blind ditch below the post-cast strip can effectively drain the confined groundwater underground, and the groove-shaped recess is conducive to the laying construction of the waterproof layer of the post-cast strip and the cleaning of garbage, and the groove-shaped recess can retain the construction waste that cannot be cleaned in the post-cast strip; the provided water leakage collection and guiding device can collect the water leakage in the post-cast strip and finally guide it into the drain pipe in the blind ditch, which can ensure that the water at the entire post-cast floor module can be drained out in a timely and effective manner, and finally improve the leakage problem at the post-cast strip of the basement floor slab.

[0009] Optionally, a quick-installing closing net is covered on the end wall of the floor slab near the post-cast strip.

[0010] By adopting the above technical solution, the setting of the quick-installing closing net can improve the forming rate of the end part during the process of the floor slab being poured and formed, thereby reducing the excessive deformation of the end part of the floor slab.

[0011] Optionally, a surface layer of concrete is covered on the upper surface of the floor slab, and the surface layer of concrete covers the entire upper surface of the floor slab and the post-cast strip.

[0012] By adopting the above technical solution, the setting of the surface layer of concrete can provide a preliminary protection for the upper surface of the post-cast strip of the floor slab and improve the structural stability of the upper surface of the post-cast strip of the floor slab.

[0013] Optionally, before the surface layer of concrete is poured, a drainage board is laid at the upper surface gap at the connection between the floor slab and the post-cast strip, and the periphery of the drainage board is covered with geotextile.

[0014] By adopting the above technical solution, the setting of the drainage board can allow water to pass through easily, and after covering with geotextile, some particulate impurities in the water will be filtered out, thereby preventing excessive impurities from entering the gap between the post-cast strip and the floor slab.

[0015] Optionally, the water leakage collection and guiding device includes a water guiding mechanism, a sponge water absorption mechanism, a squeezing mechanism and a guiding mechanism; the water guiding mechanism is installed below the connection between the floor slab and the post-cast strip in the groove-shaped recess, the sponge water absorption mechanism is installed below the water guiding mechanism in the groove-shaped recess, the squeezing mechanism is installed in the groove-shaped recess and is used for squeezing the sponge water absorption mechanism, and the guiding mechanism is installed between the groove-shaped recess and the blind ditch, and the guiding mechanism is used for guiding the water squeezed out of the sponge water absorption mechanism into the blind ditch.

[0016] By adopting the above technical solution, when water leaks at the post-cast strip of the bottom plate, it will first flow into the groove-shaped recess, and the water guiding mechanism installed in the groove-shaped recess will guide this part of the water into the sponge water absorption mechanism for storage. Then, the extrusion mechanism will extrude the sponge water absorption mechanism, so as to squeeze the water into the guiding mechanism, and the guiding mechanism will finally discharge the water into the blind ditch, ultimately achieving the effect of enabling the water to be directionally drained into the blind ditch.

[0017] Optionally, the sponge water absorption mechanism includes a placement box, a spring, and a water absorption sponge block; the upper end of the placement box is open, one end of the spring is connected to the edge of the upper end opening of the placement box, and the other end is connected to the surface of the bottom plate located in the groove-shaped recess, and the water absorption sponge block is placed in the placement box; the water guiding mechanism is used to guide the water seeping out from the post-cast strip into the water absorption sponge block, and the extrusion mechanism is used to extrude the water absorption sponge block.

[0018] By adopting the above technical solution, when water flows down from the connection between the bottom plate and the post-cast strip, the water will first flow onto the water absorption sponge block, and the water absorption sponge block has sufficient water storage performance to fully store the water in the water absorption sponge block; it can also temporarily store the water and improve the water transfer and temporary storage capacity of the groove-shaped recess. Subsequently, under the extrusion of the extrusion mechanism, the water in the water absorption sponge block will be promptly extruded, and the water temporarily stored in the water absorption sponge block will be promptly drained away.

[0019] Optionally, the water guiding mechanism includes a guiding plate and a cotton strip. One guiding plate is provided on each side of the position where the bottom plate is connected to the post-cast strip, and the two guiding plates are inclined downward and approach each other. A connecting plate is horizontally welded at the closest ends of the two guiding plates. A plug hole is opened along the length direction of the connecting plate. One end of the cotton strip passes through the plug hole and is located between the two guiding plates, and the other end hangs down directly above the water absorption sponge block.

[0020] By adopting the above technical solution, when water flows down from the connection between the bottom plate and the post-cast strip, it will first flow to the position between the two guiding plates. Since one end of the cotton strip is between the two guiding plates, the water will directly soak into the cotton strip, and then the water will flow down along the cotton strip onto the water absorption sponge block, thereby realizing the directional guiding of the water, so that the water can flow more precisely onto the water absorption sponge block.

[0021] Optionally, the extrusion mechanism includes an upper connecting rod, an extrusion mesh plate, and a pushing component. The upper connecting rod is vertically installed on the concrete layer of the post-cast strip. The extrusion mesh plate is installed at the end of the upper connecting rod and fits with the upper end surface of the water absorption sponge block. The pushing component is installed in the groove-shaped recess and is located below the placement box. The pushing component is used to vertically push the placement box upward; the water absorption sponge block discharges the water into the guiding mechanism after being extruded.

[0022] By adopting the above technical solution, when the pushing component pushes the placement box vertically upward, the water-absorbing sponge block in the placement box will also move vertically upward. Since the extrusion mesh plate provided at the end of the upper connecting rod remains in a fixed position, the water-absorbing sponge block will be extruded onto the extrusion mesh plate after moving vertically upward, squeezing the water-absorbing sponge block containing moisture, allowing the water to flow out of the water-absorbing sponge block again and draining into the guiding mechanism, achieving the effect of being more convenient to squeeze the water-absorbing sponge block.

[0023] Optionally, the pushing component includes an electric cylinder and a pushing plate; an isolation box is arranged in the groove-shaped groove, the electric cylinder is installed in the isolation box, the piston rod of the electric cylinder extends vertically upward after passing through the isolation box, and the pushing plate is arranged at the end of the piston rod of the electric cylinder; a pressure sensor is arranged below the placement box where the water-absorbing sponge block is located, a controller electrically connected to the pressure sensor is arranged in the isolation box, and the controller is electrically connected to the electric cylinder; when the pressure sensor receives a signal of increasing pressure, the controller controls the start of the electric cylinder.

[0024] By adopting the above technical solution, when the amount of water absorbed by the water-absorbing sponge block gradually increases, the weight of the water-absorbing sponge block will gradually increase. At this time, the pressure sensor is below the water-absorbing sponge block and will also sense a signal of increasing pressure. Then the pressure sensor transmits the pressure signal to the controller, and after receiving the signal, the controller will control the electric cylinder to start. When the electric cylinder starts, it will push the pushing plate vertically upward to lift the placement box, achieving the effect of automatically squeezing the water-absorbing sponge block.

[0025] Optionally, the guiding mechanism includes a bellows tube and a rigid tube. The rigid tube is arranged between the groove-shaped groove and the blind ditch, and one end of the rigid tube is located in the groove-shaped groove and the other end is located in the blind ditch; a through hole is opened on the lower plate surface of the placement box, one end of the bellows tube is communicated with the rigid tube, and the other end passes through the through hole and extends into the placement box.

[0026] By adopting the above technical solution, when the water-absorbing sponge block is squeezed, the water will first flow into the placement box, then flow into the bellows tube from the placement box, and finally flow into the blind ditch from the rigid tube, thus achieving the effect of allowing the water to normally enter the blind ditch.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. After setting a groove-shaped recess and a blind ditch under the post-cast strip of the floor slab, the groove-shaped recess can seal the area under the post-cast strip, thereby forming a blind ditch drainage, guiding and drainage system under the post-cast strip; the blind ditch under the post-cast strip can effectively drain the confined groundwater, and the groove-shaped recess is conducive to the laying construction of the post-cast strip waterproofing and the cleaning of garbage, and the groove-shaped recess can retain the construction waste that cannot be cleaned in the post-cast strip; the installed leakage collection and guiding device can collect the leakage water in the post-cast strip and finally guide it into the drain pipe in the blind ditch, which can ensure that the water at the entire post-cast strip module can be drained out in a timely and effective manner, and finally improve the leakage problem at the post-cast strip of the basement floor slab;

[0029] 2. When water leaks at the post-cast strip of the floor slab, it will first flow into the groove-shaped recess, and the water guiding mechanism installed in the groove-shaped recess will guide this part of the water into the sponge water absorption mechanism for storage, and then the sponge water absorption mechanism will be squeezed by the squeezing mechanism, so as to squeeze the water into the guiding mechanism, and the guiding mechanism will finally drain it into the blind ditch, finally achieving the effect of guiding the water to the blind ditch in a directional manner;

[0030] 3. When the amount of water inhaled by the water absorption sponge block gradually increases, the weight of the water absorption sponge block will gradually increase. At this time, the pressure sensor is located under the water absorption sponge block and will also sense the signal of increased pressure. At this time, the pressure sensor transmits the pressure signal to the controller. After receiving the signal, the controller will control the electric cylinder to start. When the electric cylinder starts, it will push the push plate vertically upward to lift the placement box, achieving the effect of automatically squeezing the water absorption sponge block. Description of the Drawings

[0031] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0032] Figure 2 is Figure 1 the partial enlarged schematic diagram of part A in

[0033] In the figure, 1. Floor slab; 11. Quick-setting closing net; 12. Surface layer concrete; 2. Drainage board; 3. Waterstop strip; 4. Groove-shaped recess; 41. Isolation box; 411. Controller; 5. Blind ditch; 6. Drain pipe; 7. Leakage collection and guiding device; 71. Water guiding mechanism; 711. Guide plate; 7111. Connecting plate; 712. Cotton strip; 72. Sponge water absorption mechanism; 721. Placement box; 7211. Pressure sensor; 722. Spring; 723. Water absorption sponge block; 73. Squeezing mechanism; 731. Upper connecting rod; 732. Squeezing mesh plate; 733. Pushing assembly; 7331. Electric cylinder; 7332. Push plate; 74. Guiding mechanism; 741. Bellows; 742. Hard pipe. Detailed Embodiment

[0034] The following is combined with the attachedFigure 1 - Attachment Figure 2 , the present application will be further described in detail below.

[0035] A basement floor post-cast strip anti-seepage system, referring to Figure 1 , 2 , includes a floor slab 1, which is cast with concrete. During the casting process of the floor slab 1, a post-cast strip is reserved. And on both end surfaces of the floor slab 1 near the post-cast strip, quick-setting closing nets 11 are covered. The setting of the quick-setting closing nets 11 can improve the forming rate of the ends during the forming process of the floor slab 1, thereby reducing excessive deformation of the ends of the floor slab 1. And the position of the post-cast strip is between the two quick-setting closing nets 11. Subsequently, a concrete layer is poured in the post-cast strip, and a water-stop strip 3 is installed at the middle position between the post-cast strip and the quick-setting closing net 11. The water-stop strip 3 is a water-swelling water-stop strip 3, which can quickly expand after water flows in, sealing the gap between the post-cast strip and the floor slab 1 and improving the sealing performance. Additional steel bars are pre-embedded in both the concrete layer of the floor slab 1 and the post-cast strip to enhance the structural stability of the concrete formed in the floor slab 1 and the post-cast strip.

[0036] Combined with Figure 1 , 2 , a drainage board 2 is set at the position of the joint gap between the floor slab 1 and the post-cast strip on the upper surface of the floor slab 1. Then a geotextile is covered on the drainage board 2, and the drainage board 2 is fixed at the joint of the floor slab 1 and the post-cast strip through mortar and nails. Subsequently, a surface layer concrete 12 is poured on the upper surfaces of the floor slab 1 and the post-cast strip, and finally a steel mesh is laid on the surface of the surface layer concrete 12. The setting of the surface layer concrete 12 can provide a preliminary protection for the upper surface of the post-cast strip of the floor slab 1 and improve the structural stability of the upper surface of the post-cast strip of the floor slab 1.

[0037] The setting of the drainage board 2 can allow water to pass through easily, and after covering the geotextile, some particulate impurities in the water will be filtered out, thereby preventing excessive impurities from entering the gap between the post-cast strip and the floor slab 1.

[0038] Combined with Figure 1 , 2, a grooved recess 4 is provided directly below the post-cast strip. The interior of the grooved recess 4 is hollow and its upper end is open, and the width of the upper opening of the grooved recess 4 is greater than the width of the post-cast strip; the surface of the grooved recess 4 is formed by pouring concrete, and a waterproof protective layer is coated on the surface of the grooved recess 4. In this embodiment, the waterproof protective layer is made of polyurethane waterproof coating. In order to ensure that the grooved recess 4 is not prone to collapse and deformation after being formed, graded sand and gravel are backfilled around the grooved recess 4. A blind ditch 5 is provided directly below the grooved recess 4. In this embodiment, the cross-sectional shape of the blind ditch 5 is an inverted equilateral trapezoid. A drain pipe 6 is placed along the length direction of the blind ditch 5 in the blind ditch 5. In this embodiment, the drain pipe 6 is a PVC drain pipe 6 with a diameter of 50 mm. Moreover, water diversion holes are provided along the length direction on both side walls of the drain pipe 6, and geotextile is coated on the surface of the water diversion holes.

[0039] After the grooved recess 4 and the blind ditch 5 are arranged below the post-cast strip of the floor slab 1, the grooved recess 4 can seal the area below the post-cast strip, so that a blind ditch 5 drainage, guiding and drainage system can be formed below the post-cast strip; the blind ditch 5 below the post-cast strip can effectively drain the underground confined water, and the grooved recess 4 is conducive to the laying construction of the post-cast strip waterproofing and the cleaning of garbage, and the grooved recess 4 can retain the construction debris that cannot be cleaned in the post-cast strip. Finally, when water enters the blind ditch 5, since the surface of the water diversion holes is coated with geotextile, the water can normally flow into the drain pipe 6 and the particulate impurities can be blocked outside the drain pipe 6.

[0040] As Figure 1 , 2 shown, a leakage collection and guiding device 7 is arranged in the grooved recess 4. The leakage collection and guiding device 7 is used to collect the leakage water in the post-cast strip and finally guide it into the drain pipe 6 in the blind ditch 5. Another purpose of arranging the leakage collection and guiding device 7 is that most of the water infiltrated from the post-cast strip can be centrally collected, avoiding excessive accumulation of the infiltrated water in the grooved recess 4 and being unable to be discharged.

[0041] Referring to Figure 1 , 2 , the leakage collection and guiding device 7 includes a water guiding mechanism 71, a sponge water absorption mechanism 72, a squeezing mechanism 73 and a guiding mechanism 74; the water guiding mechanism 71 is installed below the connection between the floor slab 1 and the post-cast strip in the grooved recess 4, the sponge water absorption mechanism 72 is installed below the water guiding mechanism 71 in the grooved recess 4, the squeezing mechanism 73 is installed in the grooved recess 4 and is used to squeeze the sponge water absorption mechanism 72, and the guiding mechanism 74 is installed between the grooved recess 4 and the blind ditch 5. The guiding mechanism 74 is used to divert the water squeezed out of the sponge water absorption mechanism 72 into the blind ditch 5.

[0042] When water leaks at the post-cast strip of the bottom plate 1, it will first flow into the groove-shaped recess 4, and the water guiding mechanism 71 installed in the groove-shaped recess 4 will guide this part of the water into the sponge water absorption mechanism 72 for storage. Then, the sponge water absorption mechanism 72 will be squeezed by the squeezing mechanism 73, so as to squeeze the water into the guiding mechanism 74, and the guiding mechanism 74 will finally discharge the water into the blind ditch 5, ultimately achieving the effect of enabling the water to be directed to the blind ditch 5 for drainage.

[0043] As Figure 1 、 2 shown, the sponge water absorption mechanism 72 includes a placement box 721, a spring 722, and a water absorption sponge block 723; the upper end of the placement box 721 is open, one end of the spring 722 is connected to the edge of the upper end opening of the placement box 721, and the other end is connected to the surface of the bottom plate 1 located in the groove-shaped recess 4, and the water absorption sponge block 723 is placed in the placement box 721; it should be noted that the placement box 721 is made of lightweight plates, and the surface of the placement box 721 is coated with an anti-rust agent. The length direction of the placement box 721 is consistent with the length direction of the post-cast strip, and the upper end opening of the placement box 721 can completely align with the gaps on both sides of the post-cast strip (i.e., the gap connection between the bottom plate 1 and the post-cast strip). The water absorption sponge block 723 is composed of multiple sponge blocks, and the cross-sectional shapes of both the water absorption sponge block 723 and the placement box 721 are rectangular; the water guiding mechanism 71 is used to guide the water seeping out from the post-cast strip into the water absorption sponge block 723, and the squeezing mechanism 73 is used to squeeze the water absorption sponge block 723.

[0044] When water flows down from the connection between the bottom plate 1 and the post-cast strip, the water will first flow onto the water absorption sponge block 723, and the water absorption sponge block 723 has sufficient water storage performance to fully store the water in the water absorption sponge block 723; it can also temporarily store the water, improving the water transfer and temporary storage capacity of the groove-shaped recess 4. Subsequently, under the squeezing of the squeezing mechanism 73, the water in the water absorption sponge block 723 will be promptly squeezed out, and the water temporarily stored in the water absorption sponge block 723 will be promptly drained away.

[0045] As Figure 1 、 2As shown, the water guiding mechanism 71 includes a guiding plate 711 and a cotton strip 712. One guiding plate 711 is provided on each side of the position where the bottom plate 1 is connected to the post-cast strip. The two guiding plates 711 are arranged to incline downward and approach each other. A connecting plate 7111 is transversely welded at the closest ends of the two guiding plates 711. A plug hole is formed in the connecting plate 7111 along the length direction of the connecting plate 7111. One end of the cotton strip 712 passes through the plug hole and is located inside the two guiding plates 711, and the other end hangs down directly above the water-absorbing sponge block 723. To prevent the cotton strip 712 from falling off the connecting plate 7111 during use, the end of the cotton strip 712 above the connecting plate 7111 is kneaded into a ball, that is, a ball-shaped object larger than the diameter of the plug hole is formed at the end of the cotton strip 712 above the connecting plate 7111, so that the cotton strip 712 will not fall off, achieving the effect of allowing the cotton strip 712 to drain water normally.

[0046] When water flows down from the connection between the bottom plate 1 and the post-cast strip, it will first flow to the position between the two guiding plates 711. Since one end of the cotton strip 712 is between the two guiding plates 711, the water will directly soak into the cotton strip 712. Then the water will flow down along the cotton strip 712 to the water-absorbing sponge block 723, thereby realizing the directional guiding of water, so that the water can flow more precisely to the water-absorbing sponge block 723.

[0047] Combined with Figure 1 、 2The extrusion mechanism 73 includes an upper connecting rod 731, an extrusion mesh plate 732 and a pushing component 733. The upper connecting rod 731 is vertically installed on the concrete layer of the post-cast strip. The extrusion mesh plate 732 is installed at the end of the upper connecting rod 731 and fits with the upper end surface of the water-absorbing sponge block 723. The extrusion mesh plate 732 is a stainless steel mesh plate; the pushing component 733 is installed in the groove 4 and is located below the placement box 721. The pushing component 733 is used to push the placement box 721 vertically upward; after the water-absorbing sponge block 723 is squeezed, the water is discharged into the guiding mechanism 74. Specifically, the pushing assembly 733 includes an electric cylinder 7331 and a pushing plate 7332; an isolation box 41 is provided in the groove 4, and the electric cylinder 7331 is installed in the isolation box 41. The purpose of providing the isolation box 41 is to protect the electric cylinder 7331 and to separate the water from the electric cylinder 7331 to a certain extent; the piston rod of the electric cylinder 7331 extends vertically upward after passing through the isolation box 41, and the pushing plate 7332 is provided at the end of the piston rod of the electric cylinder 7331; the placement box 721 is located below the water-absorbing sponge block 723 and is provided with a pressure sensor 7211, and a controller 411 electrically connected to the pressure sensor 7211 is provided in the isolation box 41, and the controller 411 is connected to the electric cylinder 7331. The cylinder 7331 is electrically connected; when the pressure sensor 7211 receives a signal indicating that the pressure increases, the controller 411 controls the start-up of the electric cylinder 7331; in the present embodiment, the surfaces of the controller 411, the pressure sensor 7211 and the electric cylinder 7331 are all packaged with a waterproof film, which can protect the electrical components such as the controller 411 and the pressure sensor 7211 to a certain extent, and the controller 411, the pressure sensor 7211 and the electric cylinder 7331 are all electrically connected to an external power supply through a circuit design; because the pressure sensor 7211 will always be in contact with the water-absorbing sponge block 723, the pressure sensor 7211 can also use a waterproof pressure sensor 7211 on the market.

[0048] Combination Figure 1 , 2 The guide mechanism 74 includes an organ pipe 741 and a hard pipe 742. The hard pipe 742 is arranged between the groove 4 and the blind groove 5, and one end of the hard pipe 742 is located in the groove 4 and the other end is located in the blind groove 5. The lower plate surface of the placement box 721 is provided with a perforation. One end of the organ pipe 741 is connected to the hard pipe 742, and the other end passes through the perforation and extends into the placement box 721. When the water-absorbing sponge block 723 is squeezed, water will first flow into the placement box 721, then flow from the placement box 721 into the organ pipe 741, and finally flow from the hard pipe 742 into the blind groove 5, thereby achieving the effect of allowing water to enter the blind groove 5 normally.

[0049] The implementation principle of the embodiments of this application is as follows: After a groove-shaped recess 4 and a blind ditch 5 are provided under the post-cast strip of the floor slab 1, the groove-shaped recess 4 can seal the area under the post-cast strip, thereby forming a blind ditch 5 for lowering, guiding, and draining water under the post-cast strip; the blind ditch 5 under the post-cast strip can effectively guide and drain the confined groundwater, while the groove-shaped recess 4 is conducive to the laying construction of the waterproof layer of the post-cast strip and the cleaning of garbage, and the groove-shaped recess 4 can retain the construction debris that cannot be cleaned in the post-cast strip; the provided leakage collection and guiding device 7 can collect the leakage water in the post-cast strip and finally guide it into the drain pipe 6 in the blind ditch 5, which can ensure that the water at the entire post-cast strip module can be drained out in a timely and effective manner, and finally improve the leakage problem at the post-cast strip of the basement floor slab 1.

[0050] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A post-cast strip anti-seepage system for the basement floor slab, characterized in that, include: A base plate (1), wherein a post-cast strip is reserved on the base plate (1), and a concrete layer is cast in the post-cast strip; a water stop strip (3) is arranged between the concrete layer and the base plate (1); a groove-shaped groove (4) is provided directly below the post-cast strip; a blind ditch (5) is provided below the groove-shaped groove (4), and a drainage pipe (6) is pre-buried in the blind ditch (5); graded sand and gravel are backfilled around the groove-shaped groove (4), and a water leakage collection and guidance device (7) is provided in the groove-shaped groove (4), and the water leakage collection and guidance device (7) is used to collect the water leakage in the post-cast strip and finally guide it into the drainage pipe (6) in the blind ditch (5); water diversion holes are provided on the pipe walls on both sides of the drainage pipe (6) along the length direction of the drainage pipe (6), and the surface of the water diversion hole is covered with geotextile; The water leakage collection and guiding device (7) comprises a water guiding mechanism (71), a sponge water absorbing mechanism (72), a squeezing mechanism (73) and a guiding mechanism (74); the water guiding mechanism (71) is installed in the groove-shaped groove (4) below the connection between the bottom plate (1) and the post-casting strip; the sponge water absorbing mechanism (72) is installed in the groove-shaped groove (4) below the water guiding mechanism (71); the squeezing mechanism (73) is installed in the groove-shaped groove (4) and is used to squeeze the sponge water absorbing mechanism (72); the guiding mechanism (74) is installed between the groove-shaped groove (4) and the blind groove (5); the guiding mechanism (74) is used to guide the water squeezed out of the sponge water absorbing mechanism (72) into the blind groove (5); The sponge water absorption mechanism (72) comprises a placement box (721), a spring (722) and a water absorption sponge block (723); the upper end of the placement box (721) is open, one end of the spring (722) is connected to the upper end opening edge of the placement box (721), and the other end is connected to the board surface of the bottom plate (1) located in the groove-shaped groove (4), and the water absorption sponge block (723) is placed in the placement box (721); the water guiding mechanism (71) is used to guide the water permeated from the post-casting strip into the water absorption sponge block (723), and the squeezing mechanism (73) is used to squeeze the water absorption sponge block (723).

2. The post-cast strip anti-seepage system for the basement floor slab according to claim 1, characterized in that, The end wall of the bottom plate (1) close to the post-casting zone is covered with a quick-closing net (11).

3. The post-cast strip anti-seepage system for the basement floor slab according to claim 1, characterized in that, The upper surface of the base plate (1) is covered with a surface layer of concrete (12), and the surface layer of concrete (12) covers the entire base plate (1) and the upper surface of the post-cast strip.

4. The post-cast strip anti-seepage system for the basement floor slab according to claim 3, characterized in that, Before pouring the surface concrete (12), a drainage board (2) is laid at the gap on the upper surface of the connection between the base plate (1) and the post-cast strip, and the periphery of the drainage board (2) is covered with a geotextile.

5. The post-cast strip anti-seepage system for the basement floor slab according to claim 4, characterized in that, The water guiding mechanism (71) includes a guiding plate (711) and a cotton strip (712). One guiding plate (711) is arranged on each side of the position where the bottom plate (1) is connected to the post-cast strip. The two guiding plates (711) are arranged to be inclined downward and close to each other. A connecting plate (7111) is transversely welded at the closest ends of the two guiding plates (711). A plug hole is formed in the connecting plate (7111) along the length direction of the connecting plate (7111). One end of the cotton strip (712) passes through the plug hole and is located inside the two guiding plates (711), and the other end hangs down directly above the water-absorbing sponge block (723).

6. The post-cast strip anti-seepage system for the basement floor slab according to claim 1, characterized in that, The extrusion mechanism (73) includes an upper connecting rod (731), an extrusion mesh plate (732), and a pushing component (733). The upper connecting rod (731) is vertically installed on the concrete layer of the post-cast strip. The extrusion mesh plate (732) is installed at the end of the upper connecting rod (731) and is in contact with the upper end surface of the water-absorbing sponge block (723). The pushing component (733) is installed in the groove-shaped groove (4) and is located below the placement box (721). The pushing component (733) is used to push the placement box (721) vertically upward. After being squeezed, the water-absorbing sponge block (723) drains water into the guiding mechanism (74).

7. The post-cast strip anti-seepage system for the basement floor slab according to claim 6, characterized in that, The pushing component (733) includes an electric cylinder (7331) and a pushing plate (7332). An isolation box (41) is arranged in the groove-shaped groove (4). The electric cylinder (7331) is installed in the isolation box (41). The piston rod of the electric cylinder (7331) passes through the isolation box (41) and extends vertically upward. The pushing plate (7332) is arranged at the end of the piston rod of the electric cylinder (7331). A pressure sensor (7211) is arranged below the placement box (721) where it is located below the water-absorbing sponge block (723). A controller (411) electrically connected to the pressure sensor (7211) is arranged in the isolation box (41). The controller (411) is electrically connected to the electric cylinder (7331). When the pressure sensor (7211) receives a signal of increasing pressure, the controller (411) controls the start of the electric cylinder (7331).

8. The post-cast strip anti-seepage system for the basement floor slab according to claim 1, characterized in that, The guiding mechanism (74) includes a bellows tube (741) and a hard tube (742). The hard tube (742) is arranged between the groove-shaped groove (4) and the blind ditch (5). One end of the hard tube (742) is located in the groove-shaped groove (4), and the other end is located in the blind ditch (5). A through hole is formed in the lower plate surface of the placement box (721). One end of the bellows tube (741) is communicated with the hard tube (742), and the other end passes through the through hole and extends into the placement box (721).

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