A method for preventing leakage of post-cast strips in basement slabs

Abstract

The present application relates to a method for preventing leakage of a post-cast strip of a basement floor, and relates to the technical field of basement water leakage protection, which includes the following steps: a post-cast strip position determination step; a floor casting step: casting the foundation floor in the basement, leaving a gap according to the location of the post-cast strip determined in advance; an underground excavation step before casting the post-cast strip: excavating a sunken groove below the gap left by the post-cast strip; a drainage ditch excavation step: excavating a drainage ditch on the ground directly below the gap of the reserved post-cast strip, laying a drainage pipe in the drainage ditch, opening a water inlet on the upper pipe wall of the drainage pipe, and connecting the drainage pipe with the sewer; a drainage and diversion step: setting a water diversion pipe between the sunken groove and the drainage pipe; a water collection construction step in the sunken groove: installing a water collection device in the sunken groove; and a post-cast strip casting step. The present application has the effect of improving the leakage problem at the post-cast strip of the basement floor.

Description

Technical Field

[0001] The present application relates to the field of basement water leakage protection technology, and in particular to a method for anti-leakage construction of a post-cast strip of a basement floor. Background Art

[0002] The post-cast joint is a temporary construction joint left at the corresponding positions of the foundation slab, wall, and beam in accordance with the design or construction specifications to prevent harmful cracks that may be caused by uneven shrinkage or settlement of the cast-in-place reinforced concrete structure during construction.

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

[0004] Regarding the above-mentioned related technologies, the inventors believe that due to rushing the construction, closing the post-cast joints in advance, or failing to take targeted drainage measures according to the geological conditions of the project, and lax quality control during the construction of the post-cast joints, there are many cracking and leakage phenomena in the post-cast joints, especially in areas with high groundwater levels and weakly permeable soil projects; after the post-cast joints are closed, the foundation slab is under the long-term action of underground pressurized water, coupled with insufficient design considerations or poor cleaning of construction debris produced by roughening the concrete on both sides of the post-cast joints, which will leave a huge risk of water seepage. 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 leakage-proof construction method for the post-cast strip of the basement floor slab.

[0006] The present application provides a method for preventing leakage of the post-cast strip of the basement floor using the following technical solution:

[0007] A method for preventing leakage of a post-cast strip of a basement floor, comprising the following steps:

[0008] Steps for determining the location of the post-casting strip: Determine the reserved location of the post-casting strip in advance according to the specific location of the on-site construction;

[0009] Steps for pouring the base slab: pour the foundation slab in the basement, leaving a gap where the post-casting strip position is determined in advance;

[0010] Underground excavation steps before pouring the post-casting strip: excavate a sunken groove below the empty position of the post-casting strip, and the excavation position is located directly below the end of the base plate at the empty position, that is, the end of the base plate at the empty position needs to be directly above the sunken groove;

[0011] Steps for excavating the drainage ditch: excavate a drainage ditch on the ground directly below the vacant position of the reserved post-casting strip, the height of which is lower than the height of the sunken groove, lay a drainage pipe in the drainage ditch, open a water inlet hole on the upper wall of the drainage pipe, and connect the drainage pipe with the sewer;

[0012] Drainage and drainage steps: a water diversion pipe is arranged between the sunken groove and the drainage pipe;

[0013] The construction steps of water collection in the sunken groove are as follows: a water collection device is installed in the sunken groove, and the water collection device is used to collect the infiltration water flowing down from the connection between the post-casting belt and the foundation bottom plate;

[0014] Steps for pouring the post-cast strip: pour concrete at the post-cast strip position reserved in the foundation slab, and pre-embed a water-swelling waterstop strip at the connection between the post-cast strip and the foundation slab.

[0015] By adopting the above technical scheme, the water-swelling waterstop strip can achieve preliminary leakage prevention for the gap at the connection between the foundation floor and the post-cast strip, and the setting of the sunken groove can store and collect the construction debris generated after the pouring of the post-cast strip, so that the construction debris can be uniformly gathered in the sunken groove, so that these construction debris have a place to be stored; and the water collection device collects the seepage water that crosses the water-swelling waterstop strip, guides this part of the seepage water into the drainage ditch, and discharges it from the drainage pipe to the sewer, so as to achieve timely drainage of the seepage water, thereby greatly reducing the hidden danger of water seepage at the post-cast strip, and achieving the effect of improving the leakage problem at the post-cast strip of the basement floor.

[0016] Optionally, the water collecting device includes a water collecting mechanism, a supporting mechanism and a water guiding mechanism; the supporting mechanism is installed in a sunken groove, the water collecting mechanism is installed on the supporting mechanism and is used to collect the seepage water that penetrates from the connection position between the post-cast strip and the foundation bottom plate; the water guiding mechanism is installed in the sunken groove below the supporting mechanism, and the water guiding mechanism is used to discharge the water into the water diversion pipe after the water collecting mechanism collects the water.

[0017] By adopting the above technical scheme, the supporting mechanism supports the water collecting mechanism, so that the water collecting mechanism can support the water collecting mechanism after the weight increases when collecting water, and the water guiding mechanism can discharge the water in the water collecting mechanism to the water diversion pipe in time, so as to achieve the effect of timely draining the infiltrated water between the foundation slab and the post-casting strip; and the water collecting mechanism can separate the infiltrated water from the construction debris accumulated in the sunken groove.

[0018] Optionally, the support mechanism includes a support frame and a sliding plate frame, the sliding plate frame is installed on the support frame, the support frame is installed between the inner walls of the sunken groove, and the water collection mechanism is vertically slidably arranged in the sliding plate frame.

[0019] By adopting the above technical solution, the support frame can support the sliding plate frame, and the water collection mechanism can stably slide vertically in the sliding plate frame, so that the water collection mechanism can move directionally in the vertical direction when the water storage weight increases.

[0020] Optionally, the water collection mechanism includes a water collection box, a sliding block, a spring and a touch opening and closing assembly; the water collection box is vertically slidably arranged in a sliding plate frame, a sliding groove is provided on the inner wall of the sliding plate frame in the vertical direction, the sliding block is installed on the side wall of the water collection box and the sliding block and the sliding groove are slidably matched; the spring is installed between the top of the sliding groove and the sliding block and always applies a vertical upward pulling force to the water collection box; a water permeable hole is provided at the lower end of the water collection box, and the touch opening and closing assembly is installed at the water permeable hole; after the water collection box collects the infiltrated water and moves vertically downward to allow the touch opening and closing assembly to touch the water guiding mechanism, the touch opening and closing assembly automatically opens and allows the infiltrated water in the water collection box to flow from the water permeable hole to the water guiding mechanism; when the water in the water collection box is drained or partially drained and moves upward, the touch opening and closing assembly automatically closes.

[0021] By adopting the above technical scheme, when seepage water flows out from the foundation bottom plate and the post-cast joint, it will flow directly into the water collection box for storage; when the stored water gradually increases, the weight of the entire water collection box will increase. At this time, the elastic force of the spring is not enough to support the weight of the water collection box, so that the water collection box will move vertically downward. At this time, the sliding block on the side wall of the water collection box will slide in the sliding groove along the length direction of the sliding groove, and finally the touch opening and closing component on the water collection box will touch the water guide mechanism. At this time, the touch opening and closing component will open the water permeable hole, and the water in the water collection box will be discharged into the water guide mechanism in time, so as to achieve the effect of allowing the water collection box to store seepage water and then automatically discharge it into the water guide mechanism.

[0022] Optionally, the touch opening and closing assembly includes a sliding plug rod, an anti-slip head, an iron sheet and a magnet block; the sliding plug rod is slidably inserted in the water permeable hole and the diameter of the sliding plug rod is smaller than the aperture of the water permeable hole, the anti-slip head is arranged at one end of the sliding plug rod located in the water collecting box and the cross-sectional area of ​​the anti-slip head is larger than the opening area of ​​the water permeable hole; the iron sheet is arranged at the bottom of the anti-slip head, the magnet block is embedded in the bottom wall of the water collecting box and is located directly below the iron sheet, and the iron sheet and the magnet block are magnetically attracted to each other; after the water collecting box moves vertically downward, the sliding plug rod will touch the water guiding mechanism, thereby vertically pushing the sliding plug rod up and finally allowing water to flow into the water guiding mechanism.

[0023] By adopting the above technical scheme, when no infiltrated water enters the water collection box, the iron sheet and the magnet block will be magnetically attracted to keep the anti-slip head tightly attached to the inner bottom wall surface of the water collection box, thereby keeping the water permeable hole in a closed state; when water is stored in the water collection box and the weight increases, the water collection box will move vertically downward, and the sliding plug rod will also move downward with the water collection box; at this time, the sliding plug rod will first touch the water guiding mechanism, and as the water collection box continues to move downward, the sliding plug rod will be forcibly pushed upward by the force, and at this time the iron sheet and the magnet sheet will separate, the anti-slip head will detach from the bottom wall surface of the water collection box, the water permeable hole will open, and the water in the water collection box will flow out of the water permeable hole and into the water guiding mechanism, thereby achieving the effect of automatically allowing the water in the water collection box to flow out.

[0024] Optionally, the water guiding mechanism includes a water guiding pipe, a bracket and an abutment rod; the water guiding pipe is vertically arranged on the bottom wall of the sunken groove, and the lower end of the water guiding pipe is connected to the water guiding pipe; the bracket is arranged inside the water guiding pipe near the upper end opening, the abutment rod is arranged on the bracket and located inside the water guiding pipe, and the central axes of the abutment rod, the sliding plug rod and the water guiding pipe are all on the same vertical line; the cross-sectional diameter of the sliding plug rod is smaller than the inner diameter of the water guiding pipe but larger than the cross-sectional diameter of the abutment rod.

[0025] By adopting the above technical solution, when the water collection box moves vertically downward with the sliding plug rod, the sliding plug rod will first abut against the abutment rod; as the water collection box continues to move, the sliding plug rod will be forced to be pushed vertically upward because the end of the sliding plug rod is blocked by the abutment rod; at this time, after the water permeable hole is forced to open, water will flow down from the water permeable hole, directly flowing the water from the water permeable hole into the water guide pipe, and then from the water guide pipe to the water diversion pipe, and finally into the drainage ditch, and discharged to the sewer through the drainage pipe, achieving a more intuitive and convenient drainage effect.

[0026] Optionally, an extension pipe connected to the water permeable hole is provided on the lower box wall of the water collecting box, a part of the rod section of the sliding plug rod is inserted in the extension pipe, and the cross-sectional outer diameter of the extension pipe is smaller than the cross-sectional inner diameter of the water conduit.

[0027] By adopting the above technical solution, the setting of the extension pipe can allow the extension pipe to directly enter the water pipe when the water collection box moves downward, allowing the extension pipe and the water pipe to be docked, thereby avoiding splashing of water when flowing out of the water permeable hole to a certain extent.

[0028] Optionally, a waterproof sealing ring is provided on the anti-slip head at a circumferential position of the sliding plug rod.

[0029] By adopting the above technical solution, the provision of the waterproof sealing ring can achieve a better sealing effect of the water permeable hole when the anti-slip head is attached to the bottom wall of the water collecting box.

[0030] Optionally, an iron net bag is provided on the inner wall of the sunken groove.

[0031] By adopting the above technical solution, the provision of the iron net bag can allow the construction debris produced by roughening the concrete on both sides of the post-cast strip to gather when it falls, and can also prevent these construction debris from directly hitting the inner wall of the sunken groove, thereby avoiding damage to the inner wall of the sunken groove by being hit to a certain extent.

[0032] Optionally, two adjacent sunken grooves are connected to each other, and a position between the two adjacent sunken grooves is an inclined surface.

[0033] By adopting the above technical solution, the position between two adjacent sunken grooves is an inclined surface, which can prevent construction debris from remaining between the two sunken grooves and allow the construction debris to be effectively collected in the sunken grooves.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. The water-swelling waterstop strip can achieve preliminary anti-leakage for the gap between the foundation slab and the post-casting strip, and the setting of the sunken groove can store and collect the construction debris generated after the post-casting strip is poured, so that the construction debris can be uniformly collected in the sunken groove, so that these construction debris can have a place to be stored; and the water collection device collects the seepage water that crosses the water-swelling waterstop strip, guides this part of the seepage water into the drainage ditch, and discharges it from the drainage pipe to the sewer, so as to achieve timely drainage of the seepage water, thereby greatly reducing the hidden danger of water seepage at the post-casting strip, and achieving the effect of improving the leakage problem at the post-casting strip of the basement floor;

[0036] 2. When seepage water flows out from the foundation bottom plate and the post-casting strip, it will flow directly into the water collection box for storage; when the stored water gradually increases, the weight of the entire water collection box will increase. At this time, the elastic force of the spring is not enough to support the weight of the water collection box, so the water collection box will move vertically downward. At this time, the sliding block on the side wall of the water collection box will slide in the sliding groove along the length direction of the sliding groove, and finally the touch opening and closing component on the water collection box will touch the water guide mechanism. At this time, the touch opening and closing component will open the water permeable hole, and the water in the water collection box will be discharged into the water guide mechanism in time, so as to achieve the effect of automatically discharging the seepage water stored in the water collection box into the water guide mechanism;

[0037] 3. When no infiltrated water enters the water collection box, the iron sheet and the magnet block will be magnetically attracted to keep the anti-slip head tightly attached to the inner bottom wall surface of the water collection box, thereby keeping the water permeable hole in a closed state; when water is stored in the water collection box and the weight increases, the water collection box will move vertically downward, and the sliding plug rod will also move downward with the water collection box; at this time, the sliding plug rod will first touch the water guide mechanism, and as the water collection box continues to move downward, the sliding plug rod will be forced to be pushed upward, and the iron sheet and the magnet sheet will separate, the anti-slip head will detach from the bottom wall surface of the water collection box, the water permeable hole will open, and the water in the water collection box will flow out of the water permeable hole and into the water guide mechanism, thereby achieving the effect of automatically letting the water in the water collection box flow out. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0039] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A

[0040] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part B.

[0041] In the figure, 1. foundation base plate; 2. sunken groove; 3. drainage ditch; 31. drainage pipe; 311. water diversion pipe; 4. water collecting device; 5. water collection mechanism; 51. water collection box; 511. water permeable hole; 52. sliding block; 53. spring; 54. touch opening and closing component; 541. sliding plug rod; 542. anti-slip head; 543. iron sheet; 544. magnet block; 6. supporting mechanism; 61. supporting frame; 62. sliding plate frame; 621. sliding groove; 7. water diversion mechanism; 71. water diversion pipe; 72. bracket; 73. abutment rod; 8. extension pipe; 9. waterproof sealing ring; 10. iron net bag. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0043] A method for preventing leakage of post-cast strips in basement slabs, referring to Figure 1 , 2 , including the following steps:

[0044] Steps for determining the location of the post-casting strip: Determine the reserved location of the post-casting strip in advance according to the specific location of the on-site construction;

[0045] Base slab pouring steps: pour the foundation base slab 1 in the basement, leaving a gap according to the location of the post-casting strip determined in advance;

[0046] Underground excavation step before pouring the post-casting strip: excavate a sunken groove 2 below the empty position of the post-casting strip, and the excavation position is located directly below the plate end of the foundation bottom plate 1 at the empty position, that is, the plate end of the foundation bottom plate 1 at the empty position needs to be located directly above the sunken groove 2, so one post-casting strip corresponds to two sunken grooves 2, and the two adjacent sunken grooves 2 are connected to each other, and the position between the two adjacent sunken grooves 2 is an inclined surface, so that it is not easy for construction debris to remain at the position between the two sunken grooves, and the construction debris can be effectively collected in the sunken groove;

[0047] The step of excavating the drainage ditch 3 is as follows: the drainage ditch 3 is excavated on the ground directly below the vacant position of the reserved post-casting strip, the height of the drainage ditch 3 is lower than the height of the sunken groove 2, a drainage pipe 31 is laid in the drainage ditch 3, a water inlet hole is provided on the upper pipe wall of the drainage pipe 31, and the drainage pipe 31 is connected to the sewer;

[0048] Drainage and drainage step: a water diversion pipe 311 is arranged between the sunken groove 2 and the drainage pipe 31;

[0049] Water collection construction steps in the sunken groove 2: a water collection device 4 is installed in the sunken groove 2, and the water collection device 4 is used to collect the infiltration water flowing down from the connection between the post-casting belt and the foundation bottom plate 1, and one end of the water diversion pipe 311 is connected to the water collection device 4 in the sunken groove 2, and the other end is connected to the drainage ditch 3;

[0050] Post-cast strip pouring steps: pour concrete at the post-cast strip position reserved in the foundation slab 1, and pre-bury a water-swelling waterstop strip at the connection between the post-cast strip and the foundation slab 1.

[0051] Combination Figure 1 , 2 , the water collection construction step in the sunken groove 2 includes setting a water collection device 4, and the specific structure of the water collection device 4 is explained below: the water collection device 4 includes a water collection mechanism 5, a supporting mechanism 6 and a water guiding mechanism 7, the supporting mechanism 6 is installed in the sunken groove 2, and the water collection mechanism 5 is installed on the supporting mechanism 6; the water collection mechanism 5 is mainly stably set in the sunken groove 2 by the supporting mechanism 6, and the water guiding mechanism 7 is installed in the sunken groove 2 and is located directly below the supporting mechanism 6 and the water collection mechanism 5, and the water guiding mechanism 7 is connected with the water diversion pipe 311, that is, after the water collection mechanism 5 collects the infiltrated water, the water collection mechanism 5 will directly discharge this part of the water into the water guiding mechanism 7, and then discharge it from the water guiding mechanism 7 to the water diversion pipe 311, and then discharge it from the water diversion pipe 311 into the drainage ditch 3, and finally enter the drainage pipe 31 from the drainage ditch 3. Since the drainage pipe 31 is connected with the sewer pipe, this part of the water will be directly discharged into the sewer pipe.

[0052] Combination Figure 2 , 3The supporting mechanism 6 includes a supporting frame 61 and a sliding plate frame 62. The sliding plate frame 62 is installed on the supporting frame 61. The supporting frame 61 is installed between the inner walls of the sunken groove 2. The water collecting mechanism 5 is vertically slidably arranged in the sliding plate frame 62. It is worth noting that the sliding plate frame 62 is a rectangular plate frame in this embodiment, that is, it is composed of four vertically arranged plate bodies. The water collection mechanism 5 includes a water collection box 51, a sliding block 52, a spring 53 and a touch opening and closing component 54; the water collection box 51 is vertically slidably arranged in the sliding plate frame 62 and the upper end of the water collection box 51 is opened, and a sliding groove 621 is provided on the inner wall of the sliding plate frame 62 along the vertical direction, and a plurality of sliding grooves 621 are vertically provided on the inner wall of the sliding plate frame 62, and the sliding block 52 is installed on the side wall of the water collection box 51 and the sliding block 52 is slidably matched with the sliding groove 621; the spring 53 is installed between the top of the sliding groove 621 and the sliding block 52 and always applies a vertical upward pulling force to the water collection box 51, that is, one end of the spring 53 is in contact with the inner wall of the sliding groove 621 The top wall is connected and the other end is connected to the block wall of the sliding block 52. When the water collecting box 51 is in a state where no seepage water is collected, the spring 53 lifts the water collecting box 51 so that the water collecting box 51 is in a suspended state; a water permeable hole 511 is opened at the lower end of the water collecting box 51, and the touch opening and closing component 54 is installed at the water permeable hole 511; after the water collecting box 51 collects the seepage water and moves vertically downward to allow the touch opening and closing component 54 to touch the water guiding mechanism 7, the touch opening and closing component 54 automatically opens and allows the seepage water in the water collecting box 51 to flow from the water permeable hole 511 to the water guiding mechanism 7; when the water in the water collecting box 51 is drained or partially drained and moves upward, the touch opening and closing component 54 automatically closes.

[0053] When seepage water flows out from the foundation bottom plate 1 and the post-cast joint, it will flow directly into the water collection box 51 for storage; when the stored water gradually increases, the weight of the entire water collection box 51 will increase. At this time, the elastic force of the spring 53 is not enough to support the weight of the water collection box 51, so that the water collection box 51 will move vertically downward. At this time, the sliding block 52 on the side wall of the water collection box 51 will slide in the sliding groove 621 along the length direction of the sliding groove 621, and finally the touch opening and closing component 54 on the water collection box 51 will touch the water guide mechanism 7. At this time, the touch opening and closing component 54 will open the water permeable hole 511, and the water in the water collection box 51 will be discharged into the water guide mechanism 7 in time, so as to achieve the effect of allowing the water collection box 51 to store the seepage water and then automatically discharge it into the water guide mechanism 7. When the water in the water collection box 51 is completely or partially drained, the water collection box 51 will be lifted up again and away from the water guide mechanism 7 under the action of the rebound force of the spring 53. At this time, the touch opening and closing component 54 will automatically close, allowing the water collection box 51 to collect the infiltrated water again.

[0054] Combination Figure 2 , 3The touch opening and closing component 54 includes a sliding plug rod 541, an anti-slip head 542, an iron sheet 543 and a magnet block 544; the sliding plug rod 541 is slidably inserted in the water permeable hole 511 and the diameter of the sliding plug rod 541 is smaller than the aperture of the water permeable hole 511. In order to prevent the sliding plug rod 541 from deviating in the water permeable hole 511, a plurality of guide blocks are arranged on the inner wall of the water permeable hole 511, that is, the sliding plug rod 541 will not deviate in the horizontal direction after being between the plurality of guide blocks, and the guide blocks do not completely block the water permeable hole 511, so the guide blocks will not affect the normal circulation of water in the water permeable hole 511; the anti-slip head 542 is arranged when the sliding plug rod 541 is located in the water collection box 51 one end of the anti-slip head 542 and the cross-sectional area of ​​the anti-slip head 542 is larger than the opening area of ​​the water permeable hole 511; the iron sheet 543 is arranged at the bottom of the anti-slip head 542, and the magnet block 544 is embedded in the inner bottom wall of the water collection box 51 and is located directly below the iron sheet 543, and the iron sheet 543 and the magnet block 544 are magnetically attracted to each other; in order to allow the anti-slip head 542 to better seal the water permeable hole 511 after the iron sheet 543 and the magnet block 544 are magnetically attracted, a waterproof sealing ring 9 is arranged on the anti-slip head 542 at a circumferential position of the sliding plug rod 541; after the water collection box 51 moves vertically downward, the sliding plug rod 541 will touch the water guiding mechanism 7, thereby vertically pushing the sliding plug rod 541 up and finally allowing water to flow into the water guiding mechanism 7.

[0055] When no infiltrated water enters the water collection box 51, the iron sheet 543 and the magnet block 544 will be magnetically attracted to each other, so that the anti-slip head 542 will be tightly attached to the inner bottom wall surface of the water collection box 51, thereby keeping the water permeable hole 511 in a closed state; when water is stored in the water collection box 51 and the weight increases, the water collection box 51 will move downward vertically, and the sliding plug rod 541 will also move downward with the water collection box 51; at this time, the sliding plug rod 541 will first touch the water guide mechanism 7, and as the water collection box 51 continues to move downward, the sliding plug rod 541 will be forced to be pushed upward, and at this time the iron sheet 543 will separate from the magnet sheet 543, and the anti-slip head 542 will be pressed downward. 542 will be separated from the bottom wall surface of the water collection box 51, the water hole 511 will open, and the water in the water collection box 51 will flow out from the water hole 511 and flow into the water guide mechanism 7, so as to achieve the effect of automatically letting the water in the water collection box 51 flow out; and after the water in the water collection box 51 is drained and the weight is reduced, the spring 53 rebounds and lifts the water collection box 51 up again. At this time, under the action of the gravity of the sliding plug rod 541 and the magnetic attraction of the iron sheet 543 and the magnet sheet 543, the anti-detachment head 542 will be driven to move down and stick to the inner bottom wall of the water collection box 51. At this time, the waterproof sealing ring 9 will cover the water hole 511, and the water hole 511 will be in a closed state again. Thus, the effect of the water collection box 51 can open the water hole 511 as long as it moves down, and the water hole 511 will automatically close after moving up.

[0056] Combination Figure 2 , 3The water guiding mechanism 7 includes a water guiding pipe 71, a bracket 72 and an abutting rod 73; the water guiding pipe 71 is vertically arranged on the bottom wall of the sunken groove 2, and the lower end of the water guiding pipe 71 is connected with the water diversion pipe 311; the bracket 72 is arranged inside the water guiding pipe 71 near the upper end opening, and the bracket 72 is rod-shaped so as not to affect the normal flow of water inside the water guiding pipe 71, the abutting rod 73 is arranged on the bracket 72 and is located inside the water guiding pipe 71, and the central axes of the abutting rod 73, the sliding plug rod 541 and the water guiding pipe 71 are all on the same vertical line; the cross-sectional diameter of the sliding plug rod 541 is smaller than the inner diameter of the water guiding pipe 71 but larger than the cross-sectional diameter of the abutting rod 73.

[0057] When the water collecting box 51 moves vertically downward with the sliding plug rod 541, the sliding plug rod 541 will first abut against the abutting rod 73; as the water collecting box 51 continues to move, the sliding plug rod 541 will be forced to be pushed vertically upward because the end of the sliding plug rod 541 is blocked by the abutting rod 73; at this time, after the water permeable hole 511 is forced to open, water will flow down from the water permeable hole 511, and directly flow the water from the water permeable hole 511 into the water guide pipe 71, and then flow from the water guide pipe 71 to the water diversion pipe 311, and finally flow into the drainage ditch 3, and be discharged to the sewer through the drainage pipe 31, thereby achieving a more intuitive and convenient drainage effect. In this embodiment, in order to prevent water from leaking when flowing from the water permeable hole 511 into the water conduit 71, an extension pipe 8 connected to the water permeable hole 511 is provided on the lower wall of the water header box 51, a portion of the rod section of the sliding plug rod 541 is inserted into the extension pipe 8, and the cross-sectional outer diameter of the extension pipe 8 is smaller than the cross-sectional inner diameter of the water conduit 71, and a portion of the guide block also extends into the extension pipe 8. That is, the provision of the extension pipe 8 allows the extension pipe 8 to directly enter the water conduit 71 when the water header box 51 moves downward, so that the extension pipe 8 and the water conduit 71 are connected, thereby preventing water from splashing out when flowing out of the water permeable hole 511 to a certain extent.

[0058] Combination Figure 1 An iron net bag 10 is arranged on the inner wall of the sunken groove 2; the arrangement of the iron net bag 10 can collect the construction debris produced by roughening the concrete on both sides of the post-cast strip when it falls, and can also prevent these construction debris from directly hitting the inner wall of the sunken groove 2, thereby avoiding the inner wall of the sunken groove 2 from being hit and damaged to a certain extent.

[0059] The implementation principle of the embodiment of the present application is as follows: the water-swelling waterstop strip can achieve preliminary leakage prevention for the gap at the connection between the foundation slab 1 and the post-cast strip, and the setting of the sunken groove 2 can store and collect the construction debris generated after the casting of the post-cast strip, so that the construction debris can be uniformly gathered in the sunken groove 2, so that these construction debris have a place to be stored; and the water collection device 4 collects the infiltrated water that passes over the water-swelling waterstop strip, guides this part of the infiltrated water into the drainage ditch 3, and discharges it from the drainage pipe 31 to the sewer, so as to achieve timely drainage of the infiltrated water, thereby greatly reducing the hidden danger of water seepage at the post-cast strip, and achieving the effect of improving the leakage problem at the post-cast strip of the basement floor.

[0060] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for preventing leakage of post-cast strips of basement slabs. It is characterized in that The following steps are involved: Steps for determining the location of the post-casting strip: Determine the reserved location of the post-casting strip in advance according to the specific location of the on-site construction; Base slab pouring steps: pouring the foundation base slab (1) in the basement, leaving a gap at the location of the post-casting strip determined in advance; Underground excavation step before pouring the post-casting strip: excavating a sunken groove (2) below the empty position of the post-casting strip, the excavation position is located directly below the end of the base plate (1) at the empty position, that is, the end of the base plate (1) at the empty position needs to be directly above the sunken groove (2); The step of digging a drainage ditch (3): digging a drainage ditch (3) on the ground directly below the vacant position of the reserved post-casting strip, wherein the height of the drainage ditch (3) is lower than the height of the sunken groove (2), laying a drainage pipe (31) in the drainage ditch (3), and providing a water inlet hole on the upper pipe wall of the drainage pipe (31), wherein the drainage pipe (31) is connected to the sewer; Drainage and drainage step: arranging a water diversion pipe (311) between the sunken groove (2) and the drainage pipe (31); The water collection construction steps in the sunken groove (2) are as follows: a water collection device (4) is installed in the sunken groove (2), and the water collection device (4) is used to collect the seepage water flowing down from the connection between the post-casting strip and the foundation bottom plate (1); The step of pouring the post-cast strip is as follows: concrete is poured at the post-cast strip position reserved on the foundation slab (1), and a water-swelling water stop strip is pre-buried at the connection between the post-cast strip and the foundation slab (1).

2. A method for preventing leakage of post-cast strips of basement floor according to claim 1, It is characterized in that The water collecting device (4) comprises a water collecting mechanism (5), a supporting mechanism (6) and a water guiding mechanism (7); the supporting mechanism (6) is installed in the sunken groove (2), the water collecting mechanism (5) is installed on the supporting mechanism (6) and is used to collect the seepage water that seeps out from the connection position between the post-casting strip and the foundation bottom plate (1); the water guiding mechanism (7) is installed in the sunken groove (2) below the supporting mechanism (6), and the water guiding mechanism (7) is used to discharge the water into the water guide pipe (311) after the water collecting mechanism (5) collects the water.

3. A method for preventing leakage of post-cast strips of basement floor according to claim 2, It is characterized in that The support mechanism (6) comprises a support frame (61) and a sliding plate frame (62), wherein the sliding plate frame (62) is mounted on the support frame (61), and the support frame (61) is mounted between the inner walls of the sunken groove (2), and the water collection mechanism (5) is vertically slidably arranged in the sliding plate frame (62).

4. A method for preventing leakage of post-cast strips of basement floor according to claim 3, It is characterized in that The water collection mechanism (5) comprises a water collection box (51), a sliding block (52), a spring (53) and a touch opening and closing assembly (54); the water collection box (51) is vertically slidably arranged in a sliding plate frame (62); a sliding groove (621) is provided on the inner wall of the sliding plate frame (62) along the vertical direction; the sliding block (52) is installed on the side wall of the water collection box (51) and the sliding block (52) and the sliding groove (621) are slidably matched; the spring (53) is installed between the top of the sliding groove (621) and the sliding block (52) and is always moved toward the water collection box. (51) applies a vertical upward pulling force; a water permeable hole (511) is opened at the lower end of the water collection box (51), and the touch opening and closing component (54) is installed at the water permeable hole (511); after the water collection box (51) collects the infiltrated water and moves vertically downward to allow the touch opening and closing component (54) to touch the water guide mechanism (7), the touch opening and closing component (54) automatically opens and allows the infiltrated water in the water collection box (51) to flow from the water permeable hole (511) to the water guide mechanism (7); when the water in the water collection box (51) is completely or partially drained and moves upward, the touch opening and closing component (54) automatically closes.

5. A method for preventing leakage of post-cast strips of basement floor according to claim 4, It is characterized in that The touch opening and closing assembly (54) comprises a sliding plug rod (541), an anti-slipping head (542), an iron sheet (543) and a magnet block (544); the sliding plug rod (541) is slidably inserted in the water permeable hole (511), and the diameter of the sliding plug rod (541) is smaller than the hole diameter of the water permeable hole (511); the anti-slipping head (542) is arranged at one end of the sliding plug rod (541) located in the water collection box (51), and the cross-sectional area of ​​the anti-slipping head (542) is larger than the cross-sectional area of ​​the water permeable hole (511). ) opening area; the iron sheet (543) is arranged at the bottom of the anti-slip head (542); the magnet block (544) is embedded in the inner bottom wall of the water collection box (51) and is located directly below the iron sheet (543); the iron sheet (543) and the magnet block (544) are magnetically attracted to each other; after the water collection box (51) moves vertically downward, the sliding plug rod (541) touches the water guide mechanism (7), thereby pushing the sliding plug rod (541) vertically upward and finally allowing water to flow into the water guide mechanism (7).

6. A method for preventing leakage of post-cast strips of basement floor according to claim 5, It is characterized in that The water guide mechanism (7) comprises a water guide pipe (71), a bracket (72) and an abutment rod (73); the water guide pipe (71) is vertically arranged on the bottom wall of the sunken groove (2), and the lower end of the water guide pipe (71) is connected to the water guide pipe (311); the bracket (72) is arranged inside the water guide pipe (71) close to the upper end opening, the abutment rod (73) is arranged on the bracket (72) and located inside the water guide pipe (71), and the central axes of the abutment rod (73), the sliding plug rod (541) and the water guide pipe (71) are all on the same vertical line; the cross-sectional diameter of the sliding plug rod (541) is smaller than the inner diameter of the water guide pipe (71) but larger than the cross-sectional diameter of the abutment rod (73).

7. A method for preventing leakage of post-cast strips of basement floor according to claim 6, It is characterized in that An extension pipe (8) connected to the water permeable hole (511) is provided on the lower wall of the water collecting box (51), a portion of the sliding plug rod (541) is inserted into the extension pipe (8), and the cross-sectional outer diameter of the extension pipe (8) is smaller than the cross-sectional inner diameter of the water conduit (71).

8. A method for preventing leakage of post-cast strips of basement floor according to claim 5, It is characterized in that A waterproof sealing ring (9) is provided on the anti-slip head (542) at a circumferential position of the sliding plug rod (541).

9. A method for preventing leakage of post-cast strips of basement floor according to claim 1, It is characterized in that An iron net bag (10) is arranged on the inner wall of the sunken groove (2).

10. A method for preventing leakage of post-cast strips of basement floor according to claim 1, It is characterized in that Two adjacent sunken grooves (2) are connected to each other, and the position between the two adjacent sunken grooves (2) is an inclined surface.

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