Basement ground leakage maintenance method and drainage system for maintenance

Abstract

The invention discloses a basement ground leakage maintenance method and a drainage system for maintenance. The method comprises the steps that expansion joints on the periphery of a current maintenance area are cut into a bottom plate structure layer; performing first crack pouring and grouting operation on the cut expansion joint; performing first-time sealing grouting operation on the leakage seam in the bottom plate surface layer of the current maintenance area; a drain opening for punching through the surface layer of the bottom plate is formed in the current maintenance area; a communicating groove is formed between the drain opening and the expansion joint; second-time crack pouring and grouting operation is conducted on the drainage opening, the communicating groove and the expansion joint; and the facing layer of the current maintenance area is recovered. Therefore, an existing expansion joint is fully utilized, the attractiveness of the basement ground is guaranteed, meanwhile, underground water in a current maintenance area can only flow from the unique path of the drainage opening, new leakage is not prone to occurring, and even if new cracks appear again, only grouting is needed to be conducted on the leakage seams of the bottom plate surface layer to reinforce sealing. And extra construction operation is not needed.

Description

Technical Field

[0001] The present invention belongs to the technical field of basement floor leakage repair, and particularly relates to a basement floor leakage repair method and a drainage system for repair. Background Art

[0002] Multi-story and high-rise buildings require deeper foundations. To utilize this height, basements are built under the ground floor of the buildings, which have excellent economic and usage effects. However, the basement floor is prone to water seepage after being used for a period of time, which affects the service life of the basement. When the water seepage is serious, the basement cannot be used directly.

[0003] For the existing leakage of the basement floor, there is a maintenance method of grooving and drainage. However, the principle of grooving is based on experience only, which affects the aesthetics of the basement floor and the grooving position may not be exactly at the leakage point. After restoring the surface layer, new leakage is very likely to occur at the grooving position, and it is necessary to groove again for maintenance; in terms of drainage effect, under the action of gravity, it is very difficult for water to flow to the grooving position, and the drainage effect is poor. Summary of the Invention

[0004] In view of the above defects or deficiencies, the present invention provides a basement floor leakage repair method and a drainage system for repair, aiming to solve at least one of the above technical problems.

[0005] To achieve the above object, in the first aspect of the present invention, a basement floor leakage repair method is provided. The basement floor leakage repair method includes:

[0006] Cut the expansion joints around the current repair area into the bottom plate structural layer to facilitate the laying of the drainage main pipe;

[0007] Perform the first grouting operation on the cut expansion joints. The grouting liquid in the first grouting operation fills into the bottom plate surface layer above the bottom plate structural layer;

[0008] Perform the first sealing grouting operation on the leakage joints on the bottom plate surface layer of the current repair area;

[0009] Open a water discharge port that penetrates the bottom plate surface layer in the current repair area to facilitate the installation of the groundwater lifting device;

[0010] Open a communication groove between the water discharge port and the expansion joint to facilitate the laying of the drainage branch pipe that connects the groundwater lifting device and the drainage main pipe;

[0011] Perform the second grouting operation on the water discharge port, the communication groove and the expansion joint. The grouting liquid in the second grouting operation fills the bottom plate surface layer;

[0012] Restore the decorative layer of the current repair area.

[0013] In an embodiment of the present invention, a water discharge port penetrating the floor surface layer is opened in the current maintenance area for the installation of a groundwater lifting device, including:

[0014] A candidate port penetrating the floor surface layer is opened at the first end of the first leakage seam selected from among multiple leakage seams in the current maintenance area;

[0015] Tracing operation is performed on the first leakage seam at the candidate port;

[0016] When it is determined according to the tracing operation result that the first leakage seam is an independent seam body, the candidate port is determined as the water discharge port of the first leakage seam for the installation of a groundwater lifting device;

[0017] When it is determined according to the tracing operation result that the first leakage seam and other leakage seams are connected trough bodies, the candidate port or the punching at the overflow point of the tracing operation is used as the water discharge port of the connected trough body for the installation of a groundwater lifting device.

[0018] In an embodiment of the present invention, when it is determined according to the tracing operation result that the first leakage seam and other leakage seams are connected trough bodies, using the candidate port or the punching at the overflow point of the tracing operation as the water discharge port of the connected trough body for the installation of a groundwater lifting device includes:

[0019] When there is an overflow from other leakage seams during the tracing operation, it is determined that the first leakage seam and other leakage seams are connected trough bodies;

[0020] Select the one with the best pipe laying path for the drainage branch pipe among the candidate port and the overflow point of the tracing operation;

[0021] If the pipe laying path from the candidate port is the best, a second sealing grouting operation is performed on the overflow point, and the candidate port is used as the water discharge port of the connected trough body;

[0022] If the pipe laying path from the overflow point of the tracing operation is the best, a second sealing grouting operation is performed on the candidate port, and the punching at the overflow point of the tracing operation is used as the water discharge port of the connected trough body.

[0023] In an embodiment of the present invention, after determining the candidate port as the water discharge port of the first leakage seam for the installation of a groundwater lifting device when it is determined according to the tracing operation result that the first leakage seam is an independent seam body, it further includes:

[0024] Continue to open candidate ports and perform tracing operations on other leakage seams.

[0025] In an embodiment of the present invention, opening a candidate port penetrating the floor surface layer at the first end of the first leakage seam selected from among multiple leakage seams in the current maintenance area includes:

[0026] Among the multiple leakage joints in the current maintenance area, a candidate opening that penetrates the floor surface layer is provided at one end of the first leakage joint closest to the expansion joint.

[0027] In an embodiment of the present invention, the first seal grouting operation on the leakage joints on the floor surface layer of the current maintenance area includes:

[0028] Clean the accumulated water in the current maintenance area;

[0029] If leakage occurs again in the current maintenance area, perform the first seal grouting operation on the leakage joints on the floor surface layer of the current maintenance area;

[0030] If no leakage occurs in the current maintenance area, perform slot cutting and the first grouting operation on the expansion joints around the adjacent area.

[0031] In an embodiment of the present invention, before the first grouting operation on the cut expansion joint, it further includes:

[0032] Flush the cut expansion joint.

[0033] In an embodiment of the present invention, the second grouting operation on the drain outlet, communication groove, and expansion joint includes:

[0034] Coat the inner walls of the drain outlet and communication groove with waterproof coating;

[0035] Use mortar to perform the second grouting operation on the drain outlet and communication groove;

[0036] Use the same grouting liquid as the first grouting operation to perform the second grouting operation on the expansion joint.

[0037] In an embodiment of the present invention, the basement floor leakage repair method further includes:

[0038] When the water pressure of the groundwater is greater than the set threshold, the groundwater lifting device is set as a straight pipe lifting device;

[0039] When the water pressure of the groundwater is less than the set threshold, the groundwater lifting device is set as a capillary lifting device.

[0040] To achieve the above object, a second aspect of the present invention provides a drainage system for basement floor leakage repair. Among them, the drainage system for basement floor leakage repair is applied to the basement floor leakage repair method described above and includes:

[0041] A drainage main pipe that can be placed in the expansion joint;

[0042] A groundwater lifting device that can be placed in the drain outlet;

[0043] The drain branch pipe can be placed in the connecting groove and its two ends are respectively butted with the drain main pipe and the groundwater lifting device one by one.

[0044] In an embodiment of the present invention, the groundwater lifting device includes a lifting cylinder body with an open lower end and a docking cover body arranged at the upper end of the lifting cylinder body. A first sealing ring that is hermetically fitted with the hole wall of the drain outlet is sleeved on the outer peripheral side of the lifting cylinder body, and a joint head for docking with the drain branch pipe is provided on the outer peripheral side of the docking cover body and extends outwards.

[0045] In an embodiment of the present invention, the lifting cylinder body includes a straight cylinder section, a capillary cylinder section and a sealing cylinder section arranged in sequence from bottom to top. A first sealing ring is sleeved on the outer peripheral side of the sealing cylinder section. The lower end of the straight cylinder section is open and extends vertically in a straight cylinder shape. There are gaps between the straight cylinder section and the capillary cylinder section and the hole wall of the drain outlet in the circumferential direction. The inner cavity of the capillary cylinder section communicates with the inner cavities of the straight cylinder section and the sealing cylinder section up and down. A plurality of capillary channels are arranged at intervals in the circumferential direction on the outer peripheral side of the capillary cylinder section, and each capillary channel is arranged to be separated from the inner cavity of the capillary cylinder section and communicate with the inner cavity of the sealing cylinder section.

[0046] In an embodiment of the present invention, the capillary cylinder section is set to have the same outer diameter as the straight cylinder section and includes a first capillary cylinder section and a second capillary cylinder section arranged in sequence from bottom to top. The wall thickness of the first capillary cylinder section is greater than that of the straight cylinder section, and the wall thickness of the second capillary cylinder section is greater than that of the first capillary cylinder section. The capillary channel includes an outer ring capillary section and a first inner ring capillary section. The outer ring capillary section is laterally open and extends from the first capillary cylinder section to the second capillary cylinder section. The first inner ring capillary section extends vertically on the second capillary cylinder section and is located inside the outer ring capillary section, so that the first inner ring capillary section is radially communicated with the outer ring capillary section and is vertically communicated with the inner cavity of the sealing cylinder section up and down.

[0047] In an embodiment of the present invention, a first partition part is arranged between the inner cavity of the straight cylinder section and the inner cavity of the first capillary cylinder section, and a plurality of first through holes are arranged at intervals on the first partition part.

[0048] In an embodiment of the present invention, a second partition part is arranged between the inner cavity of the first capillary cylinder section and the inner cavity of the second capillary cylinder section, and a plurality of second through holes are arranged at intervals on the second partition part.

[0049] In an embodiment of the present invention, the cross-sectional shape of the outer capillary section is set as a first circle with an opening, the cross-sectional shape of the first inner capillary section is set as a second circle, the centers of the first circle and the second circle on the same capillary channel are both in the same radial direction of the capillary cylinder section, and the diameter of the second circle is smaller than that of the first circle. A first pair of through sections is further provided on the second capillary cylinder section to radially communicate the outer capillary section and the first inner capillary section through the first pair of through sections. The first pair of through sections is arranged in a constricted neck shape in the cross-section between the first circle and the second circle.

[0050] In an embodiment of the present invention, the capillary cylinder section further includes a third capillary cylinder section located above the second capillary cylinder section. The wall thickness of the third capillary cylinder section is greater than that of the second capillary cylinder section. The capillary channel further includes a second inner capillary section. The outer capillary section extends from the first capillary cylinder section to the second capillary cylinder section and the third capillary cylinder section in sequence. The first inner capillary section extends from the second capillary cylinder section to the third capillary cylinder section, so that the first inner capillary section is radially communicated with the outer capillary section on both the second capillary cylinder section and the third capillary cylinder section. The second inner capillary section is located inside the first inner capillary section and extends vertically on the third capillary cylinder section, so that the second inner capillary section is radially communicated with the first inner capillary section and is vertically communicated with the inner cavity of the sealing cylinder section.

[0051] In an embodiment of the present invention, a check valve device may be provided at the upper end of the inner cavity of the capillary cylinder section and / or at one end where the capillary channel communicates with the inner cavity of the sealing cylinder section.

[0052] In an embodiment of the present invention, the lower end of the docking cover body is detachably inserted into the upper end of the lifting cylinder body to cover the upper opening of the lifting cylinder body, and a second sealing ring is provided between the docking cover body and the lifting cylinder body.

[0053] In an embodiment of the present invention, the number of the joint heads is set to at least two, and at least two of the at least two joint heads are correspondingly arranged one by one among the four evenly distributed points on the outer peripheral side of the docking cover body.

[0054] In an embodiment of the present invention, the drainage system for repairing ground leakage further includes a water pump, and the water pump can be connected to the drainage main pipe for active drainage.

[0055] Through the above technical solutions, the basement ground leakage repair method provided by the present invention has the following beneficial effects:

[0056] When using the above method for repairing basement floor leakage, the expansion joints around the current repair area can be cut into the floor slab structural layer first, and then the first grouting operation is carried out on the cut expansion joints. The grouting liquid in the first grouting operation fills into the floor slab surface layer above the floor slab structural layer. That is, the grouting liquid in the first grouting operation can seal the interlayer gap between the floor slab structural layer and the floor slab surface layer around the current repair area, so that the perimeter of the current repair area is separated from other areas and becomes an independent area. And a first sealing grouting operation is carried out on the leakage joints in the current repair area to make the floor slab surface layer in the area a sealed whole. A drain outlet that penetrates the floor slab surface layer is opened in the current repair area, and a connecting groove is opened between the drain outlet and the expansion joint. Then, after installing a groundwater lifting device in the drain outlet, a drainage branch pipe in the connecting groove, and a drainage main pipe in the expansion joint, the groundwater in the current repair area can be discharged. The above grooving and drainage method makes full use of the existing expansion joints, ensures the aesthetics of the basement floor. At the same time, through the first grouting operation and the first sealing grouting operation, the groundwater in the current repair area can only flow through the only path of the drain outlet, and it is not easy to occur new leaks. Even if new cracks appear again in the current repair area, it only needs to grout and strengthen the seal of the leakage joints on the floor slab surface layer, and there is no need to carry out additional construction operations.

[0057] Other features and advantages of the present invention will be described in detail in the following detailed implementation section. Brief Description of the Drawings

[0058] The drawings are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the specification. Together with the following detailed implementation, they are used to explain the embodiments of the present invention, but do not constitute a limitation to the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts. In the drawings:

[0059] Figure 1 is a schematic structural diagram of a basement building layer in an embodiment of the present invention;

[0060] Figure 2 is a flowchart of a method for repairing basement floor leakage in an embodiment of the present invention;

[0061] Figure 3 is a schematic structural diagram of a basement floor in an embodiment of the present invention;

[0062] Figure 4 is a schematic structural diagram of one of opening a drain outlet and a connecting groove in the current repair area in an embodiment of the present invention;

[0063] Figure 5 is the installation schematic diagram of the drainage system for maintenance according to an embodiment of the present invention;

[0064] Figure 6 is the structural schematic diagram of another structure for opening a drain port and a connecting groove in the current maintenance area according to an embodiment of the present invention;

[0065] Figure 7 is the structural schematic diagram of the groundwater lifting device installed at the drain port according to an embodiment of the present invention;

[0066] Figure 8 is the disassembly schematic diagram of the groundwater lifting device according to an embodiment of the present invention;

[0067] Figure 9 is the longitudinal sectional structural schematic diagram of the groundwater lifting device according to the first embodiment of the present invention;

[0068] Figure 10 is Figure 9 the transverse sectional structural schematic diagrams at positions 1-1, 2-2, 3-3, and 4-4;

[0069] Figure 11 is the structural schematic diagram of the check valve device according to an embodiment of the present invention;

[0070] Figure 12 is the longitudinal sectional structural schematic diagram of the groundwater lifting device according to the second embodiment of the present invention;

[0071] Figure 13 is the structural schematic diagram of the joint head being set as single-pass, double-pass, three-pass, and four-pass according to an embodiment of the present invention.

[0072] Explanation of reference numerals:

[0073] 10 Foundation 11 Waterproof cushion

[0074] 12 Waterproof layer 13 Waterproof protective layer

[0075] 14 Bottom plate structural layer 15 Bottom plate surface layer

[0076] 16 Finishing layer

[0077] 100 Current maintenance area 101 Expansion joint

[0078] 102 Sump 103 Drain port

[0079] 104 Connecting groove 105 Leakage joint

[0080] 200 Drain main pipe 300 Drain branch pipe

[0081] 400 Groundwater lifting device 410 Lifting cylinder

[0082] 411 straight tube section 412 first capillary tube section

[0083] 413 second capillary section 414 third capillary section

[0084] 415 Sealing cylinder section 416 First sealing ring

[0085] 420 capillary channel 421 outer capillary segment

[0086] 422 first inner capillary segment 423 second inner capillary segment

[0087] 424 First Circle 425 Second Circle

[0088] 426 The first pair of through sections 427 The second pair of through sections

[0089] 430 first partition portion 431 first via hole

[0090] 440 second partition portion 441 second via hole

[0091] 450 docking cover 451 joint part

[0092] 452 second sealing ring 453 third sealing ring

[0093] 460 Anti-return device 461 Ring plate

[0094] 462 cusp DETAILED DESCRIPTION

[0095] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0096] The basement floor leakage repair method and the drainage system for repair of the present invention will be described below with reference to the accompanying drawings.

[0097] like Figures 2 to 5 As shown, the present invention provides a basement floor leakage repair method, wherein the basement floor leakage repair method comprises:

[0098] Step S100 , the expansion joints 101 around the current maintenance area 100 are cut into the bottom plate structure layer 14 so as to lay out the drainage main pipe 200 .

[0099] Specifically, expansion joints 101 in a tic-tac-toe pattern are usually provided on the basement floor. If there is a leakage phenomenon in a certain blank space (especially in the central area of the blank space), this blank space is determined as the current repair area 100. In order to facilitate the subsequent placement of the built-in drainage main pipe 200 and the grouting liquid for the first grouting operation to seal the interlayer gap between the floor structure layer 14 and the floor surface layer 15 around the current repair area 100, an expansion operation can be performed on the expansion joints 101 around the current repair area 100. The expansion operation can not only widen the width of the expansion joint 101 but also deepen the depth of the expansion joint 101. The expansion joint 101 can be widened up to 20 mm at most. The drainage main pipe 200 includes, but is not limited to, a 10-mm PVC pipe. The expansion joint 101 can be deepened to extend into the floor structure layer 14 and be located above the steel bars in the floor structure layer 14 without damaging the steel bars in the floor structure layer 14. It should be noted specifically that referring to Figure 1 , the existing basement is successively provided with a foundation 10, a waterproof cushion layer 11, a waterproof layer 12, a waterproof protective layer 13, a floor structure layer 14 (reinforced concrete structure), a floor surface layer 15, and a decorative surface layer 16 from bottom to top.

[0100] More specifically, a sump 102 is usually provided in the basement. The drainage main pipe 200 can be directed to the sump 102 to collect the lifted groundwater in the sump 102. When the sump 102 is far from the current repair area 100, the expansion joint 101 between the sump 102 and the current repair area 100 can also be expanded to facilitate the drainage main pipe 200 to direct the groundwater discharged from the current repair area 100 to the sump 102. And if the sump 102 is set deviating from the expansion joint 101, a new slit can also be opened between the sump 102 and the expansion joint 101 to facilitate pipe laying. Of course, the present invention does not limit where the groundwater in the drainage main pipe 200 is discharged, as long as it can be discharged.

[0101] In addition, the expansion joints 101 around the current repair area 100 all need to be deepened into the floor structure layer 14, but it is not limited that the drainage main pipe 200 needs to be arranged. As long as there is at least one side of the expansion joints 101 around with the drainage main pipe 200 arranged, it is also acceptable. And preferably, the drainage main pipe 200 is arranged in the expansion joint 101 on the side close to the sump 102. Of course, it is also acceptable that the expansion joints 101 around are all provided with the drainage main pipe 200, which can be specifically determined according to the subsequent settings of the drain outlet 103 and the communication groove 104. At the same time, the arrangement of the drainage main pipe 200 can be before the first grouting operation, or after the first grouting operation and before the second grouting operation. The ports of the drainage main pipe 200 can be butt-jointed or blocked.

[0102] Step S200 , performing the first grouting operation on the expansion joint 101 after the cutting, wherein the grouting liquid in the first grouting operation is filled into the bottom plate surface layer 15 above the bottom plate structure layer 14 .

[0103] It can be understood that after the expansion joint 101 is cut, grouting liquid is injected into the expansion joint 101 around the current maintenance area 100, and the injection height of the grouting liquid reaches the bottom plate surface layer 15, so that the grouting liquid can enter the interlayer gap between the bottom plate structure layer 14 and the bottom plate surface layer 15, and the interlayer gap is blocked to block the flow of groundwater in the interlayer gap, thereby separating the surrounding area of ​​the current maintenance area 100 from other areas and forming an independent area. It should be specially noted that if the drainage main 200 is laid after the first grouting and grouting operation, the injection height of the first grouting and grouting operation needs to reserve the pipe laying height, and the grouting liquid in the first grouting and grouting operation includes but is not limited to polyurea grouting liquid or epoxy grouting liquid for seam beautification.

[0104] Step S300 , performing the first sealing grouting operation on the leakage seam 105 on the bottom plate surface layer 15 of the current maintenance area 100 .

[0105] It can be understood that after an obvious leakage seam 105 is found on the bottom plate surface layer 15 of the current maintenance area 100, the leakage seam 105 can be subjected to the first sealing grouting operation to strengthen the sealing of the leakage seam 105, so that the bottom plate surface layer 15 of the current maintenance area 100 becomes an integral structure, and the groundwater in the current maintenance area 100 cannot gush out from the bottom plate surface layer 15. In addition, the first sealing grouting operation needs to pay attention to controlling the grouting amount, and the slurry should not invade the interlayer gap between the bottom plate structure layer 14 and the bottom plate surface layer 15 too much. The first sealing grouting operation includes but is not limited to using polyurea grouting liquid or epoxy grouting liquid.

[0106] Specifically, the steps of the first sealing grouting operation may be to drill holes first and then grout. Since the leakage seam 105 is not a straight seam but is approximately in the shape of a tree branch, the holes may be drilled alternately on the left and right sides of the leakage seam 105, and the drilling angle may be set to be inclined toward the leakage seam 105 from top to bottom.

[0107] Step S400, a drain hole 103 penetrating the bottom plate surface layer 15 is opened in the current maintenance area 100 for installation of the groundwater lifting device 400.

[0108] Understandably, the opening of the drain outlet 103 creates a unique drainage path within the current maintenance area 100. Installing the groundwater lifting device 400 within the drain outlet 103 enables the groundwater entering the drain outlet 103 to be lifted by the groundwater lifting device 400 and enter the subsequent drainage branch pipe 300. Due to the inherent pressure of the groundwater, if the water pressure is high enough, automatic drainage can be achieved through the groundwater lifting device 400, the drainage branch pipe 300, and the drainage main pipe 200 without the need for power; if the water pressure is low, a water pump can be connected to the drainage main pipe 200 at the sump 102 to achieve active drainage.

[0109] Specifically, it is only necessary to punch through the floor surface layer 15 for the drain outlet 103, without punching through to the floor structural layer 14, that is, the drain outlet 103 only needs to be punched to the interlayer gap between the floor structural layer 14 and the floor surface layer 15. More specifically, the number of drain outlets 103 within the current maintenance area 100 can be one or multiple. In the case of less leakage and only one leakage seam 105, the number of drain outlets 103 can be one, and the punching of the drain outlet 103 can be selected at the end of the leakage seam 105 that is closer to the drainage main pipe 200; in the case of larger leakage or multiple leakage seams 105, the number of drain outlets 103 can be multiple.

[0110] Step S500, a communication groove 104 is provided between the drain outlet 103 and the expansion joint 101 for laying the drainage branch pipe 300 that connects the groundwater lifting device 400 and the drainage main pipe 200.

[0111] Understandably, in order to connect the groundwater lifting device 400 at the drain outlet 103 to the drainage main pipe 200 within the expansion joint 101, the communication groove 104 can be opened first, and then the drainage branch pipe 300 can be laid. The communication groove 104 should be set perpendicular to the expansion joint 101 that communicates with it to minimize the pipe laying distance. Specifically, both ends of the drainage branch pipe 300 can be docked with the drainage main pipe 200 and the groundwater lifting device 400 respectively.

[0112] Step S600, a second grouting operation is performed on the drain outlet 103, the communication groove 104, and the expansion joint 101. Among them, the grouting liquid in the second grouting operation fills the floor surface layer 15.

[0113] Specifically, before the second crack filling and grouting operation, the groundwater lifting device 400, the main drainage pipe 200, and the branch drainage pipe 300 are all installed in place. At the same time, the materials used in the second crack filling and grouting operation can be inconsistent at different positions. For example, the crack filling and grouting materials for the water discharge port 103 and the communication groove 104 located within the current maintenance area 100 can be set to be the same as the material of the floor surface layer 15, and the crack filling and grouting materials for the expansion joints 101 around the current maintenance area 100 can be set to be the materials for beautifying joints, which are the same as those used in the first crack filling and grouting operation.

[0114] Step S700, restore the decorative surface layer 16 of the current maintenance area 100.

[0115] When using the above-mentioned method for repairing basement floor leakage, the expansion joints 101 around the current maintenance area 100 can be cut into the floor structure layer 14 first, and then the first crack filling and grouting operation is carried out on the cut expansion joints 101. The grouting liquid in the first crack filling and grouting operation is filled into the floor surface layer 15 above the floor structure layer 14. That is, the grouting liquid in the first crack filling and grouting operation can seal the interlayer gap between the floor structure layer 14 and the floor surface layer 15 around the current maintenance area 100, so that the perimeter of the current maintenance area 100 is separated from other areas and becomes an independent area. And the first sealing grouting operation is carried out on the leakage cracks 105 within the current maintenance area 100 to make the floor surface layer 15 within the area a sealed whole. A water discharge port 103 that penetrates the floor surface layer 15 is opened in the current maintenance area 100, and a communication groove 104 is opened between the water discharge port 103 and the expansion joint 101. Then, after installing the groundwater lifting device 400 in the water discharge port 103, the branch drainage pipe 300 in the communication groove 104, and the main drainage pipe 200 in the expansion joint 101, the groundwater within the current maintenance area 100 can be discharged. The above-mentioned grooving and drainage method makes full use of the existing expansion joints 101, ensuring the aesthetics of the basement floor. At the same time, through the first crack filling and grouting operation and the first sealing grouting operation, the groundwater within the current maintenance area 100 can only flow through the only path of the water discharge port 103, and it is not easy to have new leaks. Even if new cracks appear again within the current maintenance area 100, it only needs to carry out grouting to strengthen the seal on the leakage cracks 105 of the floor surface layer 15, and there is no need to perform additional construction operations.

[0116] In an embodiment of the present invention, step S400, opening a water discharge port 103 that penetrates the floor surface layer 15 in the current maintenance area 100 for installing the groundwater lifting device 400 includes:

[0117] Step S410, select the first end of the first leakage crack among the multiple leakage cracks 105 in the current maintenance area 100 and open a candidate port that penetrates the floor surface layer 15.

[0118] Understandably, there may be multiple leakage seams 105 in the current repair area 100. After the first sealing grouting operation is performed on the multiple leakage seams 105 respectively, a hole can be drilled at any end (i.e., the first end) of any one of the leakage seams 105 (i.e., the first leakage seam) for the candidate opening, and the candidate opening is for the candidate of the water discharge port 103. It should be particularly noted that when the first sealing grouting operation is performed on the multiple leakage seams 105, in order to be able to judge whether there is an internal connection between the multiple leakage seams 105 later, the leakage seams 105 without the candidate opening drilled can be reserved with a reserved overflow port.

[0119] Step S420, perform a tracing operation on the first leakage seam at the candidate opening.

[0120] Specifically, a grouting machine can be used to inject a colored tracing liquid from the candidate opening or an air compressor can be used to inject a colored tracing gas from the candidate opening to facilitate the confirmation of whether there is any other leakage seam 105 communicating with the first leakage seam.

[0121] Step S430, when it is determined according to the tracing operation result that the first leakage seam is an independent seam body, determine the candidate opening as the water discharge port 103 of the first leakage seam for the installation of the groundwater lifting device 400.

[0122] Understandably, after the tracing operation, there is a first situation in the tracing operation result. If there is no overflow of the tracing liquid or tracing gas in the current repair area 100, it means that the first leakage seam is an independent seam body, and the opened candidate opening can be determined as the water discharge port 103 of the first leakage seam.

[0123] Step S440, when it is determined according to the tracing operation result that the first leakage seam and other leakage seams 105 are connected seam bodies, use the candidate opening or the drilled hole at the overflow point of the tracing operation as the water discharge port 103 of the connected seam body for the installation of the groundwater lifting device 400.

[0124] Understandably, after the tracing operation, there is a second situation in the result of the tracing operation. There is an overflow of the tracing liquid or the tracing gas in the current repair area 100, indicating that the first leakage seam is not an independent seam body and is also set as a connected seam body with other leakage seams 105. At this time, one of the candidate ports and the overflow point of the tracing operation can be selected as the location of the water discharge port 103. If the candidate port is selected, no hole is drilled at the overflow point of the tracing operation, and the overflow point is grouted and sealed; if the overflow point of the tracing operation is selected, the candidate port can be grouted and sealed, and a hole is drilled at the overflow point to form the water discharge port 103. It should be noted that if the overflow point of the tracing operation is the aforementioned reserved overflow port, the hole for the water discharge port 103 can be directly drilled. If the overflow point of the tracing operation is not the aforementioned reserved overflow port but an unknown hidden leakage seam 105, the overflow point should be grouted and sealed first, and then the hole for the water discharge port 103 is drilled at the overflow point.

[0125] Thus, through the tracing operation, it can be determined whether there is a connected seam body, so that the connected seam bodies can share the same water discharge port 103, achieving the purpose of reducing the number of water discharge ports 103 and the groundwater lifting device 400. In particular, the above operation can also find the hidden leakage seam 105 in the current repair area 100. The first sealing grouting operation can only grout and seal the obvious leakage seams 105 observed from the surface layer. If the tracing liquid or the tracing gas does not overflow from the reserved overflow port but from other positions, it proves that the hidden leakage seam 105 is connected to the first leakage seam.

[0126] In addition, if the groundwater water pressure is particularly high, the leakage is serious, and the water seepage volume is large, refer to Figure 6 , grid distributed drainage can be adopted in the current repair area 100, that is, without performing a tracing operation, multiple water discharge ports 103 are directly opened in the current leakage area according to the grid distribution.

[0127] In an embodiment of the present invention, in step S440, when it is determined according to the result of the tracing operation that the first leakage seam and other leakage seams 105 are connected seam bodies, drilling the candidate port or the overflow point of the tracing operation as the water discharge port 103 for the groundwater lifting device 400 to be installed includes:

[0128] Step S450, when there is an overflow from other leakage seams 105 in the tracing operation, determine that the first leakage seam and other leakage seams 105 are connected seam bodies.

[0129] Step S460, select the one with the best layout path of the drainage branch pipe 300 among the candidate port and the overflow point of the tracing operation.

[0130] Step S470, if the pipe laying path from the alternative port is the best, perform a second sealed grouting operation on the overflow point, and use the alternative port as the water discharge port 103 for the communicating joint body.

[0131] Step S480, if the pipe laying path from the overflow point of the tracer operation is the best, perform a second sealed grouting operation on the alternative port, and use the drilled hole at the overflow point of the tracer operation as the water discharge port 103 for the communicating joint body.

[0132] Specifically, by selecting the one with the best pipe laying path between the alternative port and the overflow point of the tracer operation as the position of the water discharge port 103, the drainage path can be optimized and the drainage rate can be increased. Measuring the best pipe laying path can be that the length of the drainage branch pipe 300 is the shortest, that is, the distance from the water discharge port 103 to the nearest drainage main pipe 200 is the shortest; or it can be that the distance from the water discharge port 103 to the sump 102 is the shortest, that is, the sum of the drainage branch pipe 300 and the drainage main pipe 200 between the water discharge port 103 and the sump 102 is the shortest, and the specific selection is based on actual requirements. It should be noted that in step S480, if the overflow point of the tracer operation is the aforementioned reserved overflow port, the water discharge port 103 can be directly drilled. If the overflow point of the tracer operation is not the aforementioned reserved overflow port but an unknown hidden leakage joint 105, the overflow point should be grouted and sealed first, and then the water discharge port 103 should be drilled at the overflow point.

[0133] In an embodiment of the present invention, in step S430, when it is determined according to the tracer operation result that the first leakage joint is an independent joint body, determining the alternative port as the water discharge port 103 of the first leakage joint, after the installation of the groundwater lifting device 400, further includes:

[0134] Continue to open alternative ports and perform tracer operations on other leakage joints 105.

[0135] It can be understood that there may be multiple leakage joints 105 in the current maintenance area 100. After the first leakage joint among the multiple leakage joints 105 is determined to be an independent joint body through the tracer operation, continue to prepare for and perform the tracer operation on the next leakage joint 105 among the multiple leakage joints 105, so as to explore whether the next leakage joint 105 is an independent joint body or a communicating joint body with other leakage joints 105, and further determine whether the next leakage joint 105 is provided with a separate water discharge port 103 or shares the water discharge port 103 with other leakage joints 105 until all the leakage joints 105 have corresponding water discharge ports 103.

[0136] In an embodiment of the present invention, in step S410, selecting the first end of the first leakage joint among the multiple leakage joints 105 in the current maintenance area 100 to open an alternative port that penetrates the bottom surface layer 15 includes:

[0137] Among the multiple leakage joints 105 in the current maintenance area 100, a candidate opening that penetrates the floor surface layer 15 is opened at one end of the first leakage joint closest to the expansion joint 101.

[0138] Understandably, by selecting one end of the first leakage joint closest to the expansion joint 101 to open the candidate opening, the distance for opening the communication groove 104 can be made the shortest, which is beneficial to ensuring the integrity of the floor surface layer 15.

[0139] In an embodiment of the present invention, step S300, the first sealing grouting operation on the leakage joints 105 on the floor surface layer 15 of the current maintenance area 100 includes:

[0140] Step S310, clean the accumulated water in the current maintenance area 100.

[0141] Step S320, if leakage occurs again in the current maintenance area 100, perform the first sealing grouting operation on the leakage joints 105 on the floor surface layer 15 of the current maintenance area 100.

[0142] Step S330, if no leakage occurs again in the current maintenance area 100, perform slot cutting and the first grouting operation on the expansion joints 101 around the adjacent area.

[0143] Specifically, some leakage traces on the basement floor may occur in the expansion joint 101 area, and the leakage traces span at least two blank spaces. One of the blank spaces can be selected as the current maintenance area 100 first. After step S200, since the first grouting operation can separate the current maintenance area 100 from other areas and make it an independent area, after cleaning the accumulated water in the current maintenance area 100, if leakage occurs again in the current maintenance area 100, it proves that there are leakage joints 105 in the current maintenance area 100 and the first sealing grouting operation can continue; if no leakage occurs again in the current maintenance area 100, it proves that there are no leakage joints 105 in the current maintenance area 100, and the previous leakage traces may be caused by the leakage of the leakage joints 105 in another blank space. At this time, another adjacent blank space can be selected and return to execute step S100, perform slot cutting on the expansion joints 101 around, and perform the first grouting operation after slot cutting to explore again whether there are leakage joints 105 that produce leakage traces in the current blank space until a blank space with leakage joints 105 that produce leakage traces is found.

[0144] In an embodiment of the present invention, before step S300, performing the first grouting operation on the cut expansion joint 101 further includes:

[0145] Flush the expansion joint 101 after cutting the slit.

[0146] Understandably, flushing can clean impurities such as dust in the expansion joint 101, so as to improve the strength of subsequent joint grouting operations. Specifically, high-pressure water can be used for flushing.

[0147] In an embodiment of the present invention, step S600, the second joint grouting operation for the drain outlet 103, the communication groove 104, and the expansion joint 101 includes:

[0148] Step S610, coat the inner walls of the drain outlet 103 and the communication groove 104 with waterproof coating.

[0149] Specifically, the inner walls of the drain outlet 103 and the communication groove 104 can be coated with waterproof coating, specifically a 2-mm-thick special function backwater pressure waterproof coating, so as to achieve the purpose of improving the anti-seepage ability of the entire unit. At the same time, waterproof coating construction can also be carried out within a range of 1 m outside the drain outlet 103 and the communication groove 104.

[0150] Step S620, use mortar to perform the second joint grouting operation on the drain outlet 103 and the communication groove 104.

[0151] Step S630, use the same grouting liquid as the first joint grouting operation to perform the second joint grouting operation on the expansion joint 101.

[0152] Understandably, the drain outlet 103 and the communication groove 104 belong to the current maintenance area 100. Using the same mortar material as the floor surface layer 15 of the floor slab and selecting the same grouting liquid as the first joint grouting operation for the second joint grouting operation of the expansion joint 101 are both beneficial to ensuring aesthetics and structural integrity. The grouting liquid for the second joint grouting operation and the first joint grouting operation can include but are not limited to polyurea grouting liquid or epoxy grouting liquid for beautifying joints. It should be particularly noted that step S630 includes but is not limited to being after step S620, and other reasonable sequences are also acceptable.

[0153] In an embodiment of the present invention, the basement floor leakage repair method further includes:

[0154] When the water pressure of the groundwater is greater than the set threshold, the groundwater lifting device 400 is set as a straight pipe lifting device;

[0155] When the water pressure of the groundwater is less than the set threshold, the groundwater lifting device 400 is set as a capillary lifting device.

[0156] Understandably, when the groundwater hydraulic pressure is relatively high, selecting a straight pipe lifting device as the groundwater lifting device 400 is conducive to improving the drainage efficiency; when the groundwater hydraulic pressure is relatively low, selecting a capillary lifting device as the groundwater lifting device 400 is conducive to the lifting of groundwater due to its capillary self-priming performance.

[0157] Specifically, the basement floor leakage repair method provided by the present invention includes the following steps:

[0158] 1. Cut the expansion joints around the current repair area into the floor slab structural layer for laying the drainage main pipe.

[0159] 2. Flush the cut expansion joints, which can be flushed with a high-pressure water gun, and it is required that there are no impurities such as dust in the joints.

[0160] 3. Conduct the first grouting operation for the cut expansion joints. Among them, the grouting liquid in the first grouting operation is filled into the floor slab surface layer above the floor slab structural layer.

[0161] 4. Clean up the accumulated water in the current repair area.

[0162] 5. If leakage occurs again in the current repair area, conduct the first sealing grouting operation on the leakage joints on the floor slab surface layer of the current repair area.

[0163] 6. Select a first end of the first leakage joint among multiple leakage joints in the current repair area to open a candidate port that penetrates the floor slab surface layer.

[0164] 7. Conduct a tracing operation on the first leakage joint at the candidate port.

[0165] 8. In the case where it is determined according to the tracing operation result that the first leakage joint is an independent joint body, determine the candidate port as the drain port of the first leakage joint for installing the groundwater lifting device; or in the case where it is determined according to the tracing operation result that the first leakage joint and other leakage joints are connected troughs, use the candidate port or the punching at the overflow point of the tracing operation as the drain port of the connected trough for installing the groundwater lifting device.

[0166] 9. Continue to open candidate ports and conduct tracing operations on other leakage joints until corresponding drain ports are opened for all leakage joints in the current repair area.

[0167] 10. Open a connecting trough between the drain port and the expansion joint.

[0168] 11. Install the drainage main pipe, drainage branch pipe and groundwater lifting device.

[0169] 12. Conduct the second caulking grouting operation on the water discharge port, connecting groove and expansion joint. Among them, the grouting liquid in the second caulking grouting operation fills the floor surface layer.

[0170] 13. Restore the decorative layer of the current maintenance area.

[0171] In addition, referring to Figures 3 to 6 , the present invention also provides a drainage system for repairing basement floor leakage. Among them, the drainage system for repairing basement floor leakage is applied to the basement floor leakage repair method described above, and includes:

[0172] A main drainage pipe 200, which can be placed in the expansion joint 101;

[0173] A groundwater lifting device 400, which can be placed in the water discharge port 103;

[0174] A branch drainage pipe 300, which can be placed in the connecting groove 104 and is respectively butted with the main drainage pipe 200 and the groundwater lifting device 400 at both ends one by one.

[0175] It can be understood that since the drainage system for repairing basement floor leakage adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0176] Referring to Figure 5 , Figure 7 , Figure 8 and Figure 12 , in an embodiment of the present invention, the groundwater lifting device 400 includes a lifting cylinder body 410 with an open lower end and a docking cover body 450 arranged at the upper end of the lifting cylinder body 410. A first sealing ring 416 that is hermetically fitted with the hole wall of the water discharge port 103 is sleeved on the outer peripheral side of the lifting cylinder body 410. A joint head 451 that is butted with the branch drainage pipe 300 is provided on the outer peripheral side of the docking cover body 450 extending out. Then, through the addition of the first sealing ring 416, the gap between the hole wall of the water discharge port 103 and the lifting cylinder body 410 can be sealed, so as to ensure that groundwater can only flow from the inner cavity of the lifting cylinder body 410 to the inner cavity of the docking cover body 450, the inner cavity of the joint head 451, and the branch drainage pipe 300 in sequence. Specifically, the number of the first sealing rings 416 can be at least two. At least two first sealing grooves for at least two first sealing rings 416 to be respectively sleeved are provided on the outer peripheral side of the lifting cylinder body 410. A third sealing ring 453 can be sleeved on the outer peripheral side of the joint head 451 to facilitate the sealing docking with the branch drainage pipe 300.

[0177] Referring to Figure 7 and Figures 9 to 11, in the first embodiment of the present invention, the lifting cylinder 410 includes a straight cylinder section 411, a capillary cylinder section, and a sealing cylinder section 415 arranged in sequence from bottom to top. A first sealing ring 416 is sleeved on the outer peripheral side of the sealing cylinder section 415. The lower end of the straight cylinder section 411 is open and extends in a straight cylinder shape in the vertical direction. There are gaps between the straight cylinder section 411 and the capillary cylinder section and the hole wall of the water discharge port 103 in the circumferential direction. The inner cavity of the capillary cylinder section communicates with the inner cavities of the straight cylinder section 411 and the sealing cylinder section 415 up and down. A plurality of capillary channels 420 are arranged at intervals on the outer peripheral side of the capillary cylinder section in the circumferential direction. Each capillary channel 420 is arranged to be separated from the inner cavity of the capillary cylinder section and communicate with the inner cavity of the sealing cylinder section 415. The above arrangement enables the groundwater lifting device 400 to be a capillary lifting device. When the groundwater surges, there are two paths. One is the inner cavity of the straight cylinder section 411 - the inner cavity of the capillary cylinder section - the inner cavity of the sealing cylinder section 415 for the case where the groundwater pressure is relatively large. The other is the capillary channel 420 - the inner cavity of the sealing cylinder section 415 for the case where the groundwater pressure is relatively small. At the same time, the inner cavities of the straight cylinder section 411, the capillary cylinder section, and the sealing cylinder section 415 communicate with each other up and down, so that it can also have the function of precipitating the sediment in the inner cavity of the sealing cylinder section 415.

[0178] In addition, referring to Figure 12 , in the second embodiment of the present invention, the lifting cylinder 410 includes a straight cylinder section 411 and a sealing cylinder section 415 arranged in sequence from bottom to top, and there is no capillary cylinder section. Thus, the groundwater lifting device 400 can be a straight pipe lifting device, which is particularly suitable for the case where the groundwater water pressure is relatively large.

[0179] Please refer to again Figure 7 and Figures 9 to 11, in the first embodiment of the present invention, the capillary cylinder section is set to have the same outer diameter as the straight cylinder section 411 and includes a first capillary cylinder section 412 and a second capillary cylinder section 413 arranged in sequence from bottom to top. The wall thickness of the first capillary cylinder section 412 is greater than that of the straight cylinder section 411, so that an outer ring capillary section 421 can be constructed on the first capillary cylinder section 412. The wall thickness of the second capillary cylinder section 413 is greater than that of the first capillary cylinder section 412, so that an outer ring capillary section 421 and a first inner ring capillary section 422 arranged from outside to inside can be constructed on the second capillary cylinder section 413. And the inner cavity diameters of the straight cylinder section 411, the first capillary cylinder section 412, and the second capillary cylinder section 413 gradually become smaller, showing a two-stage step setting. The capillary channel 420 includes an outer ring capillary section 421 and a first inner ring capillary section 422. The outer ring capillary section 421 is arranged with a lateral opening and extends from the first capillary cylinder section 412 to the second capillary cylinder section 413. The first inner ring capillary section 422 vertically extends on the second capillary cylinder section 413 and is located inside the outer ring capillary section 421, so that the first inner ring capillary section 422 is radially in communication with the outer ring capillary section 421 and is vertically in communication with the inner cavity of the sealing cylinder section 415. That is, groundwater can enter the outer ring capillary section 421 from the lateral opening of the outer ring capillary section 421, and then enter the inner cavity of the sealing cylinder section 415 through the first inner ring capillary section 422. Since the outer ring capillary section 421 exists in the first capillary cylinder section 412 and the second capillary cylinder section 413, and the first inner ring capillary section 422 only exists in the second capillary cylinder section 413, the length of the first inner ring capillary section 422 is less than that of the outer ring capillary section 421, making the capillary self-suction effect obvious. In order to realize the vertical communication between the first inner ring capillary section 422 and the inner cavity of the sealing cylinder section 415, the inner diameter of the second capillary cylinder section 413 can be set to be smaller than the inner diameter of the sealing cylinder section 415, so that there is space in the inner cavity of the sealing cylinder section 415 to communicate with the upper end of the first inner ring capillary section 422. Of course, the present invention is not limited to this. It is also possible to only provide one capillary cylinder section, and it is not necessary to provide an entire section of opening on the outer peripheral side of the entire capillary cylinder section for groundwater to enter. As long as there is a local entrance, it is sufficient.

[0180] In the first embodiment of the present invention, a first partition portion 430 is provided between the inner cavity of the straight cylinder section 411 and the inner cavity of the first capillary cylinder section 412, and a plurality of first through holes 431 are provided at intervals on the first partition portion 430; a second partition portion 440 is provided between the inner cavity of the first capillary cylinder section 412 and the inner cavity of the second capillary cylinder section 413, and a plurality of second through holes 441 are provided at intervals on the second partition portion 440. The addition of the first partition portion 430 and the second partition portion 440, on the one hand, plays a role in strengthening the structure, and on the other hand, can play a role in blocking sediment when groundwater surges. Specifically, the aperture of the first through hole 431 can be set to be larger than the aperture of the second through hole 441 to achieve step-by-step filtration.

[0181] In the first embodiment of the present invention, the cross-sectional shape of the outer capillary section 421 is set as a first circle 424 with an opening, and the cross-sectional shape of the first inner capillary section 422 is set as a second circle 425. The centers of the first circle 424 and the second circle 425 on the same capillary channel 420 are in the same radial direction of the capillary cylinder section, so as to make the upward flow of groundwater smoother. And the diameter of the second circle 425 is smaller than that of the first circle 424 to enhance the capillary self-absorption effect. A first pair of through sections 426 are also provided on the second capillary cylinder section 413 to radially communicate the outer capillary section 421 and the first inner capillary section 422 through the first pair of through sections 426. The first pair of through sections 426 are arranged with a necking in the cross-section between the first circle 424 and the second circle 425. It should be specifically noted that the above-mentioned necking means that the widths of the first pair of through sections 426 in the cross-section are smaller than the diameters of the first circle 424 and the second circle 425. The addition of the first pair of through sections 426 can, on the one hand, make the lifting cylinder 410 have more solid parts at the circumferential position where the first pair of through sections 426 are located, playing a role in ensuring strength, and on the other hand, can play a role in enhancing the capillary self-absorption effect. In addition, the cross-sectional shapes of the outer capillary section 421 and the first inner capillary section 422 can also be set as approximately other shapes, such as: square, triangle, etc., as long as the cross-sectional area of the first inner capillary section 422 is smaller than that of the outer capillary section 421. And if there is no first pair of through sections 426 between the outer capillary section 421 and the first inner capillary section 422, it is also possible for them to communicate directly.

[0182] In the first embodiment of the present invention, the capillary cylinder section further includes a third capillary cylinder section 414 located above the second capillary cylinder section 413. The wall thickness of the third capillary cylinder section 414 is greater than that of the second capillary cylinder section 413, so that an outer ring capillary section 421, a first inner ring capillary section 422, and a second inner ring capillary section 423 can be constructed on the third capillary cylinder section 414 in sequence from outside to inside. Moreover, the inner cavity diameters of the straight cylinder section 411, the first capillary cylinder section 412, the second capillary cylinder section 413, and the third capillary cylinder section 414 gradually decrease, showing a three-level step setting. The capillary channel 420 further includes the second inner ring capillary section 423. The outer ring capillary section 421 extends from the first capillary cylinder section 412 to the second capillary cylinder section 413 and the third capillary cylinder section 414 in sequence. The first inner ring capillary section 422 extends from the second capillary cylinder section 413 to the third capillary cylinder section 414, so that the first inner ring capillary section 422 is radially in communication with the outer ring capillary section 421 on both the second capillary cylinder section 413 and the third capillary cylinder section 414. The second inner ring capillary section 423 is located inside the first inner ring capillary section 422 and extends vertically on the third capillary cylinder section 414, so that the second inner ring capillary section 423 is radially in communication with the first inner ring capillary section 422 and is vertically in communication with the inner cavity of the sealing cylinder section 415. That is, groundwater can enter the outer ring capillary section 421 from the lateral opening of the outer ring capillary section 421, and then enter the inner cavity of the sealing cylinder section 415 through the first inner ring capillary section 422 and the second inner ring capillary section 423 in sequence. Since the outer ring capillary section 421 exists in the first capillary cylinder section 412, the second capillary cylinder section 413, and the third capillary cylinder section 414, the first inner ring capillary section 422 exists in the second capillary cylinder section 413 and the third capillary cylinder section 414, and the second inner ring capillary section 423 only exists in the third capillary cylinder section 414, the lengths of the second inner ring capillary section 423, the first inner ring capillary section 422, and the outer ring capillary section 421 are set to gradually decrease, making the capillary self-absorption effect more obvious.

[0183] In the first embodiment of the present invention, the second inner ring capillary sections 423 of the plurality of capillary channels 420 are arranged in a ring surrounding the inner cavity of the third capillary cylinder section 414 in a cross-section. Moreover, a second communication section 427 is further provided on the third capillary cylinder section 414. Each first inner ring capillary section 422 is radially in communication with the second inner ring capillary section 423 through the corresponding second communication section 427. The second communication section 427 is arranged in a necking shape between the second circle 425 and the ring in a cross-section. The above-mentioned necking means that the width of the second communication section 427 in the cross-section is smaller than the diameter of the second circle 425.

[0184] In the first embodiment of the present invention, a check valve device 460 can be provided at the upper end of the inner cavity of the capillary cylinder section and / or at one end where the capillary channel 420 is in communication with the inner cavity of the sealing cylinder section 415. By adding the check valve device 460, the phenomenon of groundwater backflow can be avoided.

[0185] Specifically, the check valve device 460 can be provided on a rubber or silicone part, and includes an annular plate portion 461 that fits against the inner wall and a cusp portion 462 provided on the annular plate portion 461. The entire inner circumference of the annular plate portion 461 is connected with the cusp portion 462. The center of the cusp portion 462 is set as a tip, and the tip can protrude upward under the bending and forming action of the cusp portion 462. The cusp portion 462 can be provided with a split seam at the tip. The groundwater flowing upward can apply force on the lower side of the tip to open the split seam, while the groundwater force on the upper side of the tip can only make the tip fit tighter and cannot open the split seam, thus realizing check valve function. At the same time, the annular plate portion 461 can be connected to the inner wall by threads.

[0186] More specifically, a check valve device 460 can be provided at the upper end of the inner cavity of the capillary tube section, and a check valve device 460 can also be provided at the upper end of each first inner ring capillary section 422.

[0187] Please refer to again Figure 8 , in an embodiment of the present invention, the lower end of the docking cover body 450 is detachably inserted into the upper end of the lifting cylinder 410 to cover the upper opening of the lifting cylinder 410, and a second sealing ring 452 is provided between the docking cover body 450 and the lifting cylinder 410. Setting the docking cover body 450 and the lifting cylinder 410 to be detachably connected facilitates the installation at the water discharge port 103 and the docking with the drainage branch pipe 300. The addition of the second sealing ring 452 can play a sealing role between the docking cover body 450 and the lifting cylinder 410. Specifically, the number of the second sealing rings 452 can be at least two, and at least two second sealing grooves for at least two second sealing rings 452 to be sleeved correspondingly one by one are provided on the outer peripheral side of the docking cover body 450.

[0188] Furthermore, the lifting cylinder 410 provided in the first embodiment of the present invention can be set as a 3D printed part to be easily formed and processed.

[0189] Refer to Figure 8 and Figure 13 , in an embodiment of the present invention, the number of the connection heads 451 is set to be at least two, and at least two of the at least two connection heads 451 are correspondingly arranged at at least two of the four evenly distributed points on the outer peripheral side of the docking cover body 450, so that the groundwater lifting device 400 can be connected to at least two drainage branch pipes 300. Specifically, the number of the connection heads 451 can be set to one, two, three, and four to achieve single-pass, double-pass, three-pass, and four-pass respectively.

[0190] In an embodiment of the present invention, the drainage system for ground leakage repair further includes a water pump. The water pump can be connected to the drainage main pipe 200 to actively drain water, so as to improve the drainage efficiency and drainage effect, and is particularly suitable for the situation with a large amount of leakage and low water pressure. Specifically, the water pump housing is connected to the drainage main pipe 200 at the catch basin 102.

[0191] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0192] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0193] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0194] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for repairing basement floor leakage, characterized in that, The method for repairing the leakage of the basement floor includes: Cut the expansion joints (101) around the current repair area (100) into the floor slab structural layer (14) for laying the main drainage pipe (200); Perform the first grouting operation on the cut expansion joints (101), wherein the grouting liquid in the first grouting operation fills into the floor slab surface layer (15) above the floor slab structural layer (14); Perform the first sealing grouting operation on the leakage joints (105) on the floor slab surface layer (15) of the current repair area (100); Open a drain outlet (103) that penetrates the floor slab surface layer (15) in the current repair area (100) for installing the groundwater lifting device (400); Open a communication groove (104) between the drain outlet (103) and the expansion joint (101) for laying the drainage branch pipe (300) that connects the groundwater lifting device (400) and the main drainage pipe (200); Perform the second grouting operation on the drain outlet (103), the communication groove (104) and the expansion joint (101), wherein the grouting liquid in the second grouting operation fills the floor slab surface layer (15); Restore the decorative surface layer (16) of the current repair area (100).

2. The basement floor leakage repair method according to claim 1, characterized in that, The step of opening a drain outlet (103) that penetrates the floor slab surface layer (15) in the current repair area (100) for installing the groundwater lifting device (400) includes: Select the first end of the first leakage joint among the multiple leakage joints (105) in the current repair area (100) to open a candidate port that penetrates the floor slab surface layer (15); Perform a tracing operation on the first leakage joint at the candidate port; When it is determined according to the tracing operation result that the first leakage joint is an independent joint body, determine the candidate port as the drain outlet (103) of the first leakage joint for installing the groundwater lifting device (400); When it is determined according to the tracing operation result that the first leakage joint and other leakage joints (105) are connected joint bodies, use the candidate port or the drilled hole at the overflow point of the tracing operation as the drain outlet (103) of the connected joint body for installing the groundwater lifting device (400).

3. The basement floor leakage repair method according to claim 2, wherein, The step of when it is determined according to the tracing operation result that the first leakage joint and other leakage joints (105) are connected joint bodies, using the candidate port or the drilled hole at the overflow point of the tracing operation as the drain outlet (103) of the connected joint body for installing the groundwater lifting device (400) includes: When there is an overflow from other leakage joints (105) during the tracing operation, determine that the first leakage joint and other leakage joints (105) are connected joint bodies; Select the one with the best pipe laying path for the drainage branch pipe (300) among the candidate port and the overflow point of the tracing operation; If the pipe laying path from the candidate port is the best, perform the second sealing grouting operation on the overflow point and use the candidate port as the drain outlet (103) of the connected joint body; If the pipe laying path from the overflow point of the tracing operation is the best, perform the second sealing grouting operation on the candidate port and use the drilled hole at the overflow point of the tracing operation as the drain outlet (103) of the connected joint body.

4. The method for repairing basement floor leakage according to claim 2, characterized in that, When it is determined that the first leakage seam is an independent seam body according to the results of the tracing operation, determining the candidate port as the water discharge port (103) of the first leakage seam, and after the installation of the groundwater lifting device (400), it further includes: Continuing to open candidate ports and perform tracing operations on other leakage seams (105); And / or, the selection of the first end of the first leakage seam among the multiple leakage seams (105) in the current maintenance area (100) and opening a candidate port that penetrates the bottom floor surface layer (15) includes: Selecting the end of the first leakage seam closest to the expansion joint (101) among the multiple leakage seams (105) in the current maintenance area (100) and opening a candidate port that penetrates the bottom floor surface layer (15).

5. The method for repairing basement floor leakage according to claim 1, characterized in that, The first sealing grouting operation on the leakage seams (105) on the bottom floor surface layer (15) of the current maintenance area (100) includes: Clearing the accumulated water in the current maintenance area (100); If leakage occurs again in the current maintenance area (100), performing the first sealing grouting operation on the leakage seams (105) on the bottom floor surface layer (15) of the current maintenance area (100); If leakage no longer occurs in the current maintenance area (100), performing slot cutting and the first grouting operation on the expansion joints (101) around the adjacent area; And / or, before performing the first grouting operation on the cut expansion joints (101), it further includes: Flushing the cut expansion joints (101).

6. The method for repairing basement floor leakage according to any one of claims 1 to 5, characterized in that, The second grouting operation on the water discharge port (103), the connecting groove (104), and the expansion joint (101) includes: Coating the inner walls of the water discharge port (103) and the connecting groove (104) with waterproof paint; Performing the second grouting operation on the water discharge port (103) and the connecting groove (104) with mortar; Performing the second grouting operation on the expansion joint (101) with the same grouting liquid as the first grouting operation.

7. The method for repairing basement floor leakage according to any one of claims 1 to 5, characterized in that, The basement floor leakage repair method further includes: When the water pressure of the groundwater is greater than the set threshold, the groundwater lifting device (400) is set as a straight pipe lifting device; When the water pressure of the groundwater is less than the set threshold, the groundwater lifting device (400) is set as a capillary lifting device.

8. A drainage system for repairing basement floor leakage, characterized in that, The drainage system for basement floor leakage repair is applied to the basement floor leakage repair method according to any one of claims 1 to 7, and includes: A drainage main pipe (200), which can be placed in the expansion joint (101); A groundwater lifting device (400), which can be placed in the water discharge port (103); Drainage branch pipes (300), which can be placed in the connecting groove (104) and are respectively connected to the drainage main pipe (200) and the groundwater lifting device (400) in a one-to-one manner at both ends.

9. The drainage system for repairing ground leakage according to claim 8, characterized in that, The groundwater lifting device (400) includes a lifting cylinder body (410) with an open lower end, and a docking cover body (450) provided at the upper end of the lifting cylinder body (410). A first sealing ring (416) that is hermetically fitted to the hole wall of the water discharge port (103) is sleeved on the outer peripheral side of the lifting cylinder body (410). A joint portion (451) that is docked with the drainage branch pipe (300) is provided extending outwards on the outer peripheral side of the docking cover body (450).

10. The drainage system for repairing ground leakage according to claim 9, characterized in that, The lifting cylinder body (410) includes a straight cylinder section (411), a capillary cylinder section, and a sealing cylinder section (415) that are sequentially arranged from bottom to top. The first sealing ring (416) is sleeved on the outer peripheral side of the sealing cylinder section (415). The lower end of the straight cylinder section (411) is open and extends in a straight cylinder shape in the vertical direction. There are gaps between the circumferences of the straight cylinder section (411) and the capillary cylinder section and the hole wall of the water discharge port (103). The inner cavity of the capillary cylinder section communicates with the inner cavities of the straight cylinder section (411) and the sealing cylinder section (415) up and down. A plurality of capillary channels (420) are provided at intervals in the circumferential direction on the outer peripheral side of the capillary cylinder section. Each capillary channel (420) is provided to be separated from the inner cavity of the capillary cylinder section and communicate with the inner cavity of the sealing cylinder section (415).

11. The drainage system for repairing ground leakage according to claim 10, characterized in that, The capillary cylinder section is set to have the same outer diameter as the straight cylinder section (411) and includes a first capillary cylinder section (412) and a second capillary cylinder section (413) that are sequentially arranged from bottom to top. The wall thickness of the first capillary cylinder section (412) is greater than the wall thickness of the straight cylinder section (411). The wall thickness of the second capillary cylinder section (413) is greater than the wall thickness of the first capillary cylinder section (412). The capillary channel (420) includes an outer ring capillary section (421) and a first inner ring capillary section (422). The outer ring capillary section (421) is provided with a lateral opening and extends from the first capillary cylinder section (412) to the second capillary cylinder section (413). The first inner ring capillary section (422) extends vertically on the second capillary cylinder section (413) and is located inside the outer ring capillary section (421), so that the first inner ring capillary section (422) is radially communicated with the outer ring capillary section (421) and vertically communicated with the inner cavity of the sealing cylinder section (415).

12. The drainage system for repairing ground leakage according to claim 11, characterized in that, A first partition portion (430) is provided between the inner cavity of the straight cylinder section (411) and the inner cavity of the first capillary cylinder section (412). A plurality of first through holes (431) are provided at intervals on the first partition portion (430); and / or, a second partition portion (440) is provided between the inner cavity of the first capillary cylinder section (412) and the inner cavity of the second capillary cylinder section (413). A plurality of second through holes (441) are provided at intervals on the second partition portion (440); And / or, the cross-sectional shape of the outer capillary section (421) is set as a first circle (424) with an opening, the cross-sectional shape of the first inner capillary section (422) is set as a second circle (425), the centers of the first circle (424) and the second circle (425) on the same capillary channel (420) are both in the same radial direction of the capillary cylinder section, and the diameter of the second circle (425) is smaller than that of the first circle (424). A first pair of through sections (426) are further provided on the second capillary cylinder section (413) to radially communicate the outer capillary section (421) and the first inner capillary section (422) through the first pair of through sections (426), and the first pair of through sections (426) are arranged in a necking shape in the cross-section between the first circle (424) and the second circle (425).

13. The drainage system for ground leakage repair according to claim 11, characterized in that, The capillary cylinder section further includes a third capillary cylinder section (414) located above the second capillary cylinder section (413). The wall thickness of the third capillary cylinder section (414) is greater than that of the second capillary cylinder section (413). The capillary channel (420) further includes a second inner capillary section (423). The outer capillary section (421) extends from the first capillary cylinder section (412) to the second capillary cylinder section (413) and the third capillary cylinder section (414) in sequence. The first inner capillary section (422) extends from the second capillary cylinder section (413) to the third capillary cylinder section (414) so that the first inner capillary section (422) is radially communicated with the outer capillary section (421) on both the second capillary cylinder section (413) and the third capillary cylinder section (414). The second inner capillary section (423) is located inside the first inner capillary section (422) and extends vertically on the third capillary cylinder section (414) so that the second inner capillary section (423) is radially communicated with the first inner capillary section (422) and vertically communicated with the inner cavity of the sealing cylinder section (415).

14. The drainage system for repairing ground leakage according to claim 10, characterized in that, A check valve device (460) may be provided at the upper end of the inner cavity of the capillary cylinder section and / or at one end where the capillary channel (420) communicates with the inner cavity of the sealing cylinder section (415).

15. The drainage system for repairing ground leakage according to claim 9, characterized in that, The lower end of the docking cover body (450) is detachably inserted into the upper end of the lifting cylinder body (410) to cover the upper end opening of the lifting cylinder body (410), and a second sealing ring (452) is provided between the docking cover body (450) and the lifting cylinder body (410). The number of the connection heads (451) is set to at least two, and at least two of the at least two connection heads (451) are correspondingly arranged by selecting at least two from four points evenly distributed on the outer peripheral side of the docking cover body (450).

16. The drainage system for repairing ground leakage according to any one of claims 8 to 15, characterized in that, The drainage system for ground leakage repair further includes a water pump, and the water pump can be connected to the drainage main pipe (200) for active drainage.

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