Construction method for preventing leakage of bottom plate post-cast strip

Abstract

The invention relates to a construction method for preventing leakage of a bottom plate post-cast strip, which comprises the following steps of: before pouring a bottom plate, paving a water guide pipe at the post-cast strip, communicating one end of the water guide pipe with the post-cast strip, and communicating the other end of the water guide pipe with a water collecting well close to the post-cast strip; before the post-cast strip is cast, connecting an elbow and a vertical pipe at the end part of the water guide pipe at the post-cast strip, and enabling the top of the vertical pipe to be positioned on the top surface of the bottom plate; and a floor drain is mounted at the top of the vertical pipe, so that the anti-seepage construction of the bottom plate post-cast strip is completed. The water guide pipe is arranged in the bottom plate, the post-cast strip is communicated with the water collecting well, underground water seeping from the bottom plate can be guided into the water collecting well through the arrangement of the water guide pipe, and the purpose that the bottom plate does not leak or crack is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of basement engineering, in particular to a construction method for preventing leakage of a post-cast strip of a bottom plate. Background Art

[0002] With the progress of urbanization, basement projects are becoming more and more common in current construction projects, among which the quality of basement construction directly affects the later use function. According to the survey, basement leakage is common in many projects that have been built in the past. The most critical factor causing basement leakage is the seepage of groundwater from the cold joint between the post-casting strip and the first cast concrete. During construction, water-stopping steel plates are generally set on both sides of the post-casting strip to stop water, but the post-casting strip of the basement may still leak due to reasons such as unclean garbage cleaning, deformation of water-stopping steel plates or incomplete welding, and foundation settlement causing the gap between the post-casting strip and the basement to become larger. After the basement leaks, it will cause a series of quality problems such as floor cracking and water accumulation. The construction unit generally adopts grouting, grooving and drainage to plug the leak in the later stage, but the effect is not good. It often takes several years to completely plug the seepage, which greatly wastes manpower and material resources. In addition, the later plugging has a great impact on the appearance of the formed floor, which greatly reduces the owner's satisfaction with the construction unit. This has become a difficult problem that needs to be solved urgently in the industry. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a construction method for preventing leakage of the post-cast strip of the base plate, so as to solve the problems that leakage of the post-cast strip of the existing base plate leads to a series of quality problems and the leakage blocking effect is not good.

[0004] The technical solution to achieve the above purpose is:

[0005] The present invention provides a construction method for preventing leakage of a post-cast strip of a bottom plate, comprising the following steps:

[0006] Before pouring the bottom slab, a water pipe is laid at the post-casting strip, one end of the water pipe is connected to the post-casting strip, and the other end is connected to the water collection well adjacent to the post-casting strip;

[0007] Before pouring the post-cast strip, connect the elbow and the riser at the end of the water pipe located at the post-cast strip, so that the top of the riser is located on the top surface of the base plate;

[0008] A floor drain is installed on the top of the vertical pipe, thus completing the anti-leakage construction of the base plate post-cast strip.

[0009] A further improvement of the construction method for preventing leakage of the post-cast strip of the bottom plate of the present invention is that after the post-cast strip is cast, a drainage groove is arranged on the surface of the post-cast strip.

[0010] A further improvement of the construction method for preventing leakage of the post-cast strip of the bottom plate of the present invention is that when the drainage ditch is arranged, the drainage ditch is arranged at the junction between the post-cast strip and the concrete structure poured first;

[0011] Drainage grooves are also set at the location of the floor drain.

[0012] A further improvement of the construction method for preventing leakage of the bottom plate post-cast strip of the present invention is that before setting the elbow and the riser, the surface of the previously cast concrete structure on both sides of the post-cast strip is roughened, the garbage remaining in the post-cast strip is cleaned, and then it is flushed with water, and the flushing water is discharged into the water collection well through the water guide pipe.

[0013] A further improvement of the construction method for preventing leakage of the post-cast strip of the bottom plate of the present invention is that when arranging the water pipe, a plurality of water pipes are arranged, and the plurality of water pipes are arranged at intervals along the corresponding sides of the water collection well.

[0014] A further improvement of the construction method for preventing leakage of the post-cast strip of the bottom plate of the present invention is that when pouring the bottom plate, both ends of the water guide pipe are wrapped with gauze to prevent concrete from entering.

[0015] A further improvement of the construction method for preventing leakage of the post-cast strip of the bottom plate of the present invention is that it also includes: laying a hydrophobic plate along the post-cast strip, and the laid hydrophobic plate is in a continuous bending shape.

[0016] A further improvement of the construction method for preventing leakage of the post-cast strip of the bottom plate of the present invention is that when the water guide pipe is arranged, the water guide pipe is sloped toward the water collection well.

[0017] The beneficial effects of the construction method for preventing leakage of the post-cast strip of the bottom plate of the present invention are:

[0018] The present invention arranges a water guide pipe in the bottom plate to connect the post-casting strip with the water collection well. The arrangement of the water guide pipe can guide the groundwater seeping from the bottom plate into the water collection well, so as to achieve the purpose of preventing the bottom plate from leaking or cracking.

[0019] The invention is easy to operate and can be constructed on site using local materials.

[0020] The present invention can reduce the cost of later bottom plate plugging and floor repair, and greatly reduces labor and material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figures 1 to 4 It is a schematic diagram of the decomposed steps of the construction method for preventing leakage of the post-cast strip of the base plate of the present invention.

[0022] Figure 5 It is a top view of the post-cast strip in the construction method for preventing leakage of the post-cast strip of the base plate of the present invention.

[0023] Figure 6The present invention is a flow chart of the construction method for preventing leakage of the post-cast strip of the base plate. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] See also Figure 1 The present invention provides a construction method for preventing leakage of the post-casting strip of the base plate. The water guide pipe is buried before the base plate construction to connect the post-casting strip and the water collection well. Before the post-casting strip is cast, the debris in the post-casting strip is cleaned and the post-casting strip is rinsed with clean water. The rinse water is led to the water collection well by the water guide pipe. After rinsing, the water guide pipe is connected to the elbow and extends to the base plate surface. A floor drain is set at the upper end of the vertical pipe of the water guide pipe. When the post-casting strip of the base plate is cast, a drainage ditch is set on the surface. During the later construction and operation, if there is leakage at the post-casting strip, the groundwater will flow to the drainage ditch, and then converge to the floor drain through the drainage ditch and lead to the water collection well. Finally, it is discharged to the municipal pipe network through the self-priming pump in the water collection well, so as to achieve the purpose of no water stains on the surface of the base plate. The present invention solves the quality problems such as easy leakage of the post-casting strip of the base plate and cracking of the base plate surface layer. The construction method for preventing leakage of the post-casting strip of the base plate of the present invention is explained below in conjunction with the accompanying drawings.

[0026] See also Figure 1 , showing a schematic diagram of the decomposition steps of the construction method of the bottom plate post-casting belt leakage prevention of the present invention. Figure 6 , showing a flow chart of the construction method for preventing leakage of the bottom plate post-casting belt of the present invention. Figure 1 and Figure 6 , the construction method for preventing leakage of the post-cast strip of the base plate of the present invention is described.

[0027] like Figure 1 and Figure 6 As shown, the construction method for preventing leakage of the bottom plate post-cast strip of the present invention comprises the following steps:

[0028] Before pouring the bottom plate 13, a water pipe 21 is laid at the post-casting strip 12, one end of the water pipe 21 is connected to the post-casting strip 12, and the other end is connected to the water collection well 11 adjacent to the post-casting strip 12;

[0029] Combination Figure 2 As shown, before pouring the post-cast strip 12, the elbow 22 and the riser 23 are connected at the end of the water guide pipe 21 located at the post-cast strip, so that the top of the riser 23 is located on the top surface of the bottom plate 13;

[0030] A floor drain 24 is installed on the top of the vertical pipe 23, thereby completing the anti-leakage construction of the bottom plate post-cast zone.

[0031] In a specific embodiment of the present invention, before pouring the bottom plate 13, the bottom plate reinforcement is tied at the position of the bottom plate 13. While tying the bottom plate reinforcement, a water pipe 21 is set. Preferably, the water pipe 21 is a PVC pipe with a diameter of φ100mm.

[0032] Combination Figure 5 As shown, when the water pipe 21 is provided, a plurality of water pipes 21 are provided, and the plurality of water pipes 21 are provided at intervals along the corresponding sides of the water collection well 11 .

[0033] Furthermore, when the water pipe 21 is arranged, the water pipe 21 is sloped toward the water collection well 11. This facilitates the water in the water pipe 21 to be discharged into the water collection well 11. Preferably, the water pipe 21 is sloped toward the water collection well 11 by 1%.

[0034] In a specific embodiment of the present invention, when pouring the bottom plate 13, gauze is used to wrap both ends of the water pipe 21 to prevent concrete from entering. The bottom plate 13 formed by pouring buries the water pipe 21.

[0035] When pouring the bottom plate 13 , a water stop steel plate 121 is buried at the location of the post-cast strip 12 , so that a portion of the water stop steel plate 121 is left at the location of the post-cast strip 12 .

[0036] In a specific embodiment of the present invention, before setting the elbow 22 and the riser 23, the surface of the pre-cast concrete structure on both sides of the post-cast strip 12 is roughened, the garbage remaining in the post-cast strip 12 is cleaned, and then flushed with water. The flushing water is discharged into the collection well 11 through the water pipe 21.

[0037] Before pouring concrete into the post-casting strip 12, the concrete structures on both sides of the post-casting strip 12 are roughened, the rust on the steel is removed, and the concrete fragments, garbage, dust, etc. remaining in the post-casting strip are manually cleaned up, and then rinsed with clean water, and the flushing water is led to the water collection well 11 through the water guide pipe 21.

[0038] After flushing is completed, an elbow 22 and a vertical pipe 23 are connected to the end of the water pipe 21, extending to the top surface of the base plate 13, and a floor drain 24 is set at the upper end of the vertical pipe 23. The water on the surface of the base plate 13 can be introduced into the vertical pipe 23 and the water pipe 21 through the floor drain 24, and then discharged into the water collection well 11.

[0039] In a specific embodiment of the present invention, Figure 3 As shown, after the post-cast strip is cast, a drainage ditch 25 is provided on the surface of the post-cast strip structure 14 .

[0040] Combination Figure 5 As shown, when the drainage groove 25 is set, the drainage groove 25 is set at the junction between the post-cast strip structure 14 and the first cast concrete structure;

[0041] A drainage groove 25 is also provided at the location of the floor drain 24 .

[0042] After pouring concrete in the post-cast strip 12 to form the post-cast strip structure 14, before the post-cast strip structure 14 initially sets, a steel pipe is used to roll the surface of the post-cast strip structure 14 to form a drainage groove 25, and the formed drainage groove 25 has a width of 50 mm and a depth of 25 mm.

[0043] The drainage groove 25 provided at the floor drain 24 is communicated with the drainage groove 25 provided at the junction.

[0044] In a specific embodiment of the present invention, Figure 4 As shown, it also includes: laying a hydrophobic plate 26 along the post-cast strip structure 14, and the laid hydrophobic plate 26 is in a continuous bending shape.

[0045] The width of the laid hydrophobic plate 26 is 1 meter, the thickness of the hydrophobic plate 26 is 40 mm, and the convex points of the hydrophobic plate 26 are arranged downward.

[0046] After the hydrophobic plate 26 is set, the floor is poured on the bottom plate 13 .

[0047] If there is leakage in the post-cast joint of the base plate during the later construction and operation stages, the groundwater will remain in the drainage ditch, flow to the floor drain through the drainage ditch and then into the collection well. Finally, the water can be discharged to the municipal pipeline network through the self-priming pump in the collection well, thus achieving the effect of preventing the base plate from leaking.

[0048] The construction method of the present invention is applicable to all post-cast strips of base plates, and can save the amount of hydrophobic plates.

[0049] The construction method of the invention can solve the leakage problem of the post-cast strip of the bottom plate.

[0050] The construction method of the present invention can greatly reduce the occurrence of floor cracking in the later stage.

[0051] The construction method of the invention is easy to operate and can be constructed on site using local materials.

[0052] Water pipes can be made of waste PVC pipes to achieve the purpose of waste utilization.

[0053] The construction process of the present invention is less affected by the external environment, such as weather and other factors. No pollution, construction waste, etc. will be generated during construction, and it is a safe and reliable construction method with obvious environmental benefits.

[0054] The present invention can reduce the cost of later bottom plate plugging and floor repair, and greatly reduces labor and material costs.

[0055] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A construction method for preventing leakage of a post-cast strip of a base plate, characterized in that: The steps include: Before pouring the bottom slab, a water pipe is laid at the post-casting strip, one end of the water pipe is connected to the post-casting strip, and the other end is connected to the water collection well adjacent to the post-casting strip; Before pouring the post-cast strip, connect the elbow and the riser at the end of the water pipe located at the post-cast strip, so that the top of the riser is located on the top surface of the base plate; A floor drain is installed on the top of the vertical pipe, thus completing the anti-leakage construction of the base plate post-cast strip.

2. The construction method for preventing leakage of the post-cast strip of the bottom plate according to claim 1, characterized in that: After the post-cast strip is poured, a drainage ditch is set on the surface of the post-cast strip.

3. The construction method for preventing leakage of the post-cast strip of the bottom plate as claimed in claim 2, characterized in that: When setting the drainage ditch, set it at the junction between the post-cast strip and the first cast concrete structure; Drainage grooves are also set at the location of the floor drain.

4. The construction method for preventing leakage of the post-cast strip of the bottom plate according to claim 1, characterized in that: Before setting the elbow and the riser, the surface of the first poured concrete structure on both sides of the post-cast strip is roughened, the garbage remaining in the post-cast strip is cleaned, and then it is flushed with water, and the flushing water is discharged into the water collection well through the water pipe.

5. The construction method for preventing leakage of the post-cast strip of the bottom plate according to claim 1, characterized in that: When setting the water pipes, multiple water pipes are set, and the multiple water pipes are set at intervals along the corresponding sides of the water collection well.

6. The construction method for preventing leakage of the post-cast strip of the bottom plate according to claim 1, characterized in that: When pouring the base slab, wrap both ends of the water pipe with gauze to prevent concrete from entering.

7. The construction method for preventing leakage of the post-cast strip of the bottom plate according to claim 1, characterized in that: Also includes: Drain plates are laid along the post-cast strips, and the laid drain plates are in a continuously curved shape.

8. The construction method for preventing leakage of the post-cast strip of the bottom plate according to claim 1, characterized in that: When setting up the water pipe, make sure it slopes towards the water collection well.

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