Basement waterproof structure and construction method

Abstract

The invention discloses a basement waterproof structure and a construction method. Belongs to the technical field of basement waterproofing. According to the technical key points, the garage comprises a ground, and a catch basin, a sewer well and a garage body are sequentially arranged in the ground from left to right; through cooperative use of a catch basin, a sewer well, a leveling layer, an SBS modified asphalt waterproof coiled material, a drainage plate, first geotechnical cloth, a drainage groove, a first flow meter, second geotechnical cloth, a siphon, a siphon assembly and a connecting pipe, the SBS modified asphalt waterproof coiled material is laid at the top end of a garage main body, so that the top end of the garage main body is completely separated from water; in addition, a drainage plate and a drainage groove are laid on the upper portion of the SBS modified asphalt waterproof coiled material, then underground water at the top end of the garage body is sucked out through a siphon, the design is based on water drainage and assisted by water prevention, the waterproof performance is improved, labor is saved, cost is reduced, and construction is easy.

Description

Technical Field

[0001] The present invention relates to the technical field of basement waterproofing, in particular to a basement waterproofing structure and a construction method. Background Art

[0002] At present, waterproofing of underground projects is a major problem, especially leakage of large underground projects has always been an issue that people attach great importance to and pay attention to; underground projects, as the name suggests, are underground engineering projects, that is, building roofs underground, etc., but on rainy days or urban sprinklers, water will directly leak into the underground project through sudden leakage, making the underground project unable to solidify, and will affect the service life for a long time.

[0003] At present, the waterproof structures used in underground projects are generally painted with waterproof paint. As thermal expansion and contraction occur, the waterproof structure of the structure is poor, and waterproofing is currently the main method. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a basement waterproof structure and construction method. This technical solution solves the problem raised in the above background technology that the waterproof structures currently used in underground projects are generally painted with waterproof paint, which makes the waterproof structure of the structure poor with thermal expansion and contraction, and waterproofing is currently the main focus.

[0005] In order to achieve the above objects, the technical solution adopted by the present invention is: A basement waterproof structure includes a floor, wherein a rainwater well, a sewer well and a garage body are sequentially arranged inside the floor from left to right, a leveling layer is laid on the top of the garage body, an SBS modified asphalt waterproofing membrane is laid on the top of the leveling layer, a drainage board is laid on the top of the SBS modified asphalt waterproofing membrane, a first geotextile is laid on the top of the drainage board, a drainage trough is further arranged on the top of the drainage board, the drainage trough is U-shaped, and a first device for monitoring the water flow in the drainage trough is provided on the drainage trough Flow meter, the outer wall of the drainage trough is paved with a second geotextile, the first geotextile is connected to the second geotextile, a water outlet is provided on one side of the drainage trough and is connected to a siphon tube, the siphon tube is arranged in a Z shape, a siphon assembly is provided in the upper horizontal tube of the siphon tube, a second flow meter located between the siphon assembly and the drainage trough is provided on the upper horizontal tube of the siphon tube, the other end of the siphon tube is connected to the sewer, one side of the sewer is connected to a connecting pipe, and one end of the connecting pipe extends to the inside of the rainwater well.

[0006] Preferably, the main body of the garage is constructed using silicate cement mixed with PNC803 waterproof additive, with a standard dosage of 1%-2% of the weight of silicate cement, which can form a penetrating crystallization waterproof system. The amount of silicate cement is ≥280kg / m³, the sand rate is 35%-45%, and the water-cement ratio is controlled below 0.5.

[0007] Preferably, the SBS modified asphalt waterproof membrane includes an upper SBS modified asphalt layer and a lower SBS modified asphalt layer, the upper surface of the upper SBS modified asphalt layer is evenly distributed with a plurality of transverse U-shaped grooves and a plurality of vertical U-shaped grooves, and the plurality of transverse U-shaped grooves and the plurality of vertical U-shaped grooves are arranged crosswise with each other, and the lower surface of the upper SBS modified asphalt layer is compounded with an upper filament polyester felt base layer, an upper HDPE waterproof layer, a glass fiber felt layer, a lower HDPE waterproof layer and a lower filament polyester felt base layer, and the lower surface of the lower filament polyester felt base layer is bonded and compounded with the upper surface of the lower SBS modified asphalt layer.

[0008] Preferably, the siphon assembly includes two fixed plates fixedly connected to the upper horizontal tube of the siphon tube and arranged at intervals, and a plurality of water flow holes are passed through the two fixed plates transversely, and two semicircular pistons for complementary use are provided inside the upper horizontal tube of the siphon tube, and the two semicircular pistons cooperate to form a circular piston adapted to the inner wall of the upper horizontal tube of the siphon tube, and the arc-shaped outer rings of the two semicircular pistons are in close contact with the inner wall of the siphon tube, and the opposite sides of the two semicircular pistons are also in close contact, and the two semicircular pistons are slidably connected to two horizontally arranged first sliding rods, the two ends of the first sliding rods are respectively fixedly connected to the two fixed plates, the upper horizontal tube of the siphon tube is fixedly connected to the outside of the

[0009] Preferably, two second sliding rods corresponding to the two mounting seats are vertically arranged inside the upper horizontal tube of the siphon tube, the top end of the second sliding rod is directly fixedly connected to the inner wall of the siphon tube, and the bottom end of the second sliding rod is indirectly fixedly connected to the inner wall of the siphon tube through a horizontal block, the two mounting seats are slidingly connected to the two second sliding rods respectively, and the second sliding rod is provided with a spring located between the mounting seat and the horizontal block, the top end of the spring is fixedly connected to the bottom of the mounting seat, and the bottom end of the spring is fixedly connected to the top of the horizontal block.

[0010] Preferably, the semicircular piston includes a semicircular plate slidably connected to the first sliding rod, the outer ring of the semicircular plate is fixedly connected to a matching sealing ring, the arc-shaped outer rings of the two sealing rings are in close contact with the inner wall of the siphon tube, and the opposite sides of the two sealing rings are also in close contact, and one end of the push rod is hinged to one side of the semicircular plate.

[0011] Preferably, the two electric cylinders, the first flow meter and the second flow meter are all electrically connected to an external controller.

[0012] Preferably, the components provided in the siphon are all made of 316 stainless steel or 9Cr18 stainless steel, and each component is coated with waterproof grease.

[0013] Preferably, a check valve is installed at one end of the connecting pipe extending into the interior of the rainwater well, and an observation window is provided at the top of the rainwater well.

[0014] A construction method for a basement waterproof structure: S1. When constructing the main body of the garage, mechanically stir the PNC803 waterproofing additive powder and Portland cement in a dry state for 3 minutes to ensure uniform distribution. Then, after adding water, the total mixing time should be ≥5 minutes. The speed should be controlled at 30-40rpm to avoid caking or stratification. The water temperature should be preferably 20-30℃. In low-temperature environments, warm water should be used and the mixing time should be extended. The mixed concrete should be poured into the main frame of the garage within 1 hour. The vibration should be dense but avoid excessive vibration that may cause aggregate sinking. Focus on strengthening the vibration of permeable areas such as wall joints and wall pipes. Wet curing should begin within 24 hours after pouring. Keep the surface moist for ≥14 days. The curing temperature should be ≥5℃. Plastic film covering and regular water spraying can be used for dual curing. If local leakage is found, PNC803 can be used to prepare a slurry and then be repaired by secondary brushing. S2. For waterproofing, first lay a leveling layer on top of the garage roof. After it has completely solidified, lay SBS modified asphalt waterproof membrane on top of the leveling layer. Lay a drainage board on top of the SBS modified asphalt waterproof membrane to divert underground water leakage. Lay a drainage trough on the SBS modified asphalt waterproof membrane to allow water from the drainage board to flow into the trough. Lay a first geotextile on the drainage board to filter underground water leakage. Lay a second geotextile on the outer wall of the drainage trough. Finally, bond the overlap between the first and second geotextiles. The waterproofing is now complete. S3. To drain water, install a manhole on one side of the garage. Connect a siphon tube between the manhole and the gutter. The siphon tube, in conjunction with its internal siphon assembly, drains the gutter completely into the manhole. The manhole is then connected to the rainwater well, and a check valve is installed at the connection point to facilitate the return of water from the rainwater well to the manhole. S4. The siphon assembly needs to be used in conjunction with the first flow meter and the second flow meter. The first flow meter is used to monitor the amount of water in the drain trough. When the water flow reaches the set value, the first flow meter will transmit the flow signal to the external controller, and the external controller will synchronously start the two electric cylinders to work. The telescopic rods of the two electric cylinders will be extended synchronously, and the cooperation of the two push rods will push the two semicircular pistons to move synchronously toward the drain trough. At this time, a negative pressure will be formed in the siphon tube, and then the external controller will control the telescopic rods of the two electric cylinders to be retracted synchronously, and the cooperation of the two push rods will drive the two semicircular pistons to retreat. After repeating this several times, the negative pressure inside the upper horizontal pipe of the siphon tube will be obvious, and the water in the drain trough will be siphoned into the siphon tube. When the second flow meter detects that the flow in the siphon tube has reached the set value, it will feed back the flow signal to the external controller. The external controller will stagger the time to shut down the two electric cylinders, so that the two semicircular pistons are staggered. At this time, the water in the drain trough will be siphoned into the siphon tube and then discharged into the sewer.

[0015] Compared with the existing technology, the present invention provides a basement waterproof structure and construction method, which has the following beneficial effects: 1. The present invention is provided with a rainwater well, a sewer well, a leveling layer, an SBS modified asphalt waterproof membrane, a drainage board, a first geotextile, a drainage trough, a first flow meter, a second geotextile, a siphon, a siphon assembly, a second flow meter and a connecting pipe. By laying the SBS modified asphalt waterproof membrane on the top of the garage body, the top of the garage body is completely separated from water. The SBS modified asphalt waterproof membrane is made of asphalt, so it effectively prevents the problem of thermal expansion and contraction. In addition, a drainage board and a drainage trough are laid on the top of the SBS modified asphalt waterproof membrane, and then the groundwater on the top of the garage body is sucked out through the siphon. This design is mainly hydrophobic and supplemented by waterproofing, which improves waterproof performance, saves labor, reduces costs, and is simple to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A; Figure 3 4 is a cross-sectional view of the SBS modified asphalt waterproof membrane of the present invention; Figure 4 Schematic diagram of the top structure of the upper SBS modified asphalt layer in the present invention; Figure 5 It is a cross-sectional view of the upper horizontal tube of the siphon tube of the present invention; Figure 6 It is a structural schematic diagram of the siphon component in the present invention.

[0017] The numbers in the figure are: 1. Ground; 2. Rainwater well; 3. Sewer well; 4. Garage body; 5. Leveling layer; 6. SBS modified asphalt waterproofing membrane; 601. Upper SBS modified asphalt layer; 602. Lower SBS modified asphalt layer; 603. Horizontal U-shaped groove; 604. Vertical U-shaped groove; 605. Upper filament polyester felt base layer; 606. Upper HDPE waterproofing layer; 607. Fiberglass felt layer; 608. Lower HDPE waterproofing layer; 609. Lower filament polyester felt base layer; 7. Drainage board; 8. First geotextile ; 9. Drainage trough; 10. First flow meter; 11. Second geotextile; 12. Siphon; 13. Siphon assembly; 1301. Fixed plate; 1302. Water hole; 1303. Semicircular piston; 1304. First slide bar; 1305. Protective box; 1306. Electric cylinder; 1307. Mounting seat; 1308. Push rod; 14. Second flow meter; 15. Connecting pipe; 16. Second slide bar; 17. Spring; 18. Sealing ring; 19. Check valve; 20. Observation window; 21. Semicircular plate. DETAILED DESCRIPTION

[0018] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0019] Example 1 Please refer to Figures 1 to 6 As shown, a basement waterproofing structure and construction method include a floor 1, wherein a rainwater well 2, a sewer well 3, and a garage body 4 are sequentially arranged inside the floor 1 from left to right. A leveling layer 5 is laid on the top of the garage body 4, and an SBS modified asphalt waterproofing membrane 6 is laid on the top of the leveling layer 5. A drainage board 7 is laid on the top of the SBS modified asphalt waterproofing membrane 6, and a first geotextile 8 is laid on the top of the drainage board 7. A drainage trough 9 is also provided on the top of the drainage board 7. The drainage trough 9 is U-shaped and is provided with a first flow meter 1 for monitoring the water flow in the drainage trough 9. 0, the outer wall of the drainage trough 9 is paved with a second geotextile 11, the first geotextile 8 is connected to the second geotextile 11, a water outlet is provided on one side of the drainage trough 9 and is connected to a siphon tube 12, the siphon tube 12 is arranged in a Z shape, a siphon assembly 13 is arranged in the upper horizontal tube of the siphon tube 12, a second flow meter 14 is provided on the upper horizontal tube of the siphon tube 12 and is located between the siphon assembly 13 and the drainage trough 9, the other end of the siphon tube 12 is conductively connected to the sewer well 3, and one side of the sewer well 3 is conductively connected to a connecting pipe 15, and one end of the connecting pipe 15 extends to the inside of the rainwater well 2.

[0020] Those skilled in the art will understand that, when performing waterproofing treatment, the present invention first lays a leveling layer 5 on top of the garage body 4 roof, and then lays an SBS modified asphalt waterproof membrane 6 on top of the leveling layer 5 after it is completely solidified, and then lays a drainage board 7 on top of the SBS modified asphalt waterproof membrane 6 to facilitate diversion of underground water leakage, and then lays a drainage trough 9 on the SBS modified asphalt waterproof membrane 6 so that the water in the drainage board 7 can flow into the drainage trough 9. At this time, the first geotextile 8 is laid on the drainage board 7 to facilitate filtering of underground seepage water, and then the second geotextile 11 is laid on the outer wall of the drainage trough 9, and then the overlap between the first geotextile 8 and the second geotextile 11 is bonded, and the waterproofing treatment is completed.

[0021] In addition, a rainwater well 2, a sewage well 3 and a garage body 4 are first constructed, and then covered with soil to form the ground 1.

[0022] Example 2 Furthermore, the garage body 4 is constructed using silicate cement mixed with PNC803 waterproof additive, with a standard dosage of 1%-2% of the weight of silicate cement, which can form a permeable crystallization waterproof system. The silicate cement dosage is ≥280kg / m³, the sand ratio is 35%-45%, and the water-cement ratio is controlled below 0.5.

[0023] It will be understood by those skilled in the art that when the garage body 4 in the present invention is constructed, the frame of the garage body 4 is first built, and then the PNC803 waterproof additive powder and silicate cement are mechanically stirred in a dry state for 3 minutes to ensure uniform distribution. Then, after adding water, the total stirring time is ≥5 minutes, and the speed is controlled at 30-40rpm to avoid agglomeration or stratification. The water temperature is preferably 20-30°C. In a low temperature environment <5°C, warm water needs to be used and the stirring time needs to be extended. After mixing, the concrete needs to be poured into the frame of the garage body 4 within 1 hour.

[0024] In addition, the vibration needs to be dense but avoid excessive vibration that may cause the aggregate to sink. Focus on strengthening the vibration of wall joints, wall pipes and other easily seepage areas. Start wet curing within 24 hours after pouring, keep the surface moist for ≥14 days, and the curing temperature ≥5°C. Double curing can be achieved by covering with plastic film + spraying water regularly. If local leakage is found, PNC803 can be used to prepare a slurry for secondary brushing and repair.

[0025] Example 3 Furthermore, the SBS modified asphalt waterproof membrane 6 includes an upper SBS modified asphalt layer 601 and a lower SBS modified asphalt layer 602. The upper surface of the upper SBS modified asphalt layer 601 is evenly distributed with a plurality of transverse U-shaped grooves 603 and a plurality of vertical U-shaped grooves 604. The plurality of transverse U-shaped grooves 603 and the plurality of vertical U-shaped grooves 604 are arranged crosswise with each other. The lower surface of the upper SBS modified asphalt layer 601 is compounded with an upper filament polyester felt base layer 605, an upper HDPE waterproof layer 606, a glass fiber felt layer 607, a lower HDPE waterproof layer 608 and a lower filament polyester felt base layer 609. The lower surface of the lower filament polyester felt base layer 609 is bonded and compounded with the upper surface of the lower SBS modified asphalt layer 602.

[0026] It can be understood by those skilled in the art that the SBS modified asphalt waterproof membrane 6 used in the present invention not only has all the properties of ordinary asphalt waterproof membrane, but also has better waterproof performance, excellent salt and alkali resistance and resistance to chloride ion penetration, can maintain good waterproof performance for a long time in a high salt and alkali environment, has a long service life, fully meets the requirements of the concrete surface coating for resistance to chloride ion penetration, and can effectively protect the main body of the building structure from erosion by corrosive media, thereby extending the service life of the building.

[0027] In addition, the transverse U-shaped groove 603 and the vertical U-shaped groove 604 can play a role in diversion and prevent the accumulation of water. SBS modified asphalt has a certain self-healing ability, is very stable to saline water, can enhance salt and alkali resistance and resistance to chloride ion penetration, and can maintain good waterproof performance in a high saline and alkali environment for a long time. Using SBS modified asphalt as the surface layer and bottom layer of the waterproof membrane can not only achieve high-strength welding and laying, but also achieve seamless welding between multiple rolls of waterproof membrane. The upper filament polyester felt base layer 605, the upper HDPE waterproof layer 606, the glass fiber felt layer 607, the lower HDPE waterproof layer 608 and the lower filament polyester felt base layer 609 constitute an intermediate composite reinforcement layer, which can significantly enhance the strength of the waterproof membrane, improve the performance of anti-particle puncture, and meet the requirements of high tensile strength and high tear resistance.

[0028] Example 4 Furthermore, the siphon assembly 13 includes two fixed plates 1301 fixedly connected to the upper horizontal tube of the siphon tube 12 and arranged at intervals, and a plurality of water flow holes 1302 are horizontally penetrated on the two fixed plates 1301. Two semicircular pistons 1303 for matching are provided inside the upper horizontal tube of the siphon tube 12. The two semicircular pistons 1303 cooperate to form a circular piston adapted to the inner wall of the upper horizontal tube of the siphon tube 12. The arc-shaped outer rings of the two semicircular pistons 1303 are in close contact with the inner wall of the siphon tube 12, and the opposite sides of the two semicircular pistons 1303 are also in close contact. The two semicircular pistons 1303 are both slidably connected. Two horizontally arranged first sliding rods 1304 are connected, and the two ends of the first sliding rods 1304 are respectively fixedly connected to the two fixed plates 1301. The upper horizontal tube of the siphon tube 12 is fixedly connected to the outside with a protection box 1305. The protection box 1305 is fixedly connected with two electric cylinders 1306 corresponding to the two semicircular pistons 1303 respectively. The telescopic rods of the two electric cylinders 1306 extend to the inside of the siphon tube 12 and are fixedly connected with a mounting seat 1307. The telescopic rod of the electric cylinder 1306 is slidably connected to the siphon tube 12, and a push rod 1308 is hinged between the two mounting seats 1307 and the two semicircular pistons 1303.

[0029] It will be understood by those skilled in the art that, when draining water, the present invention installs a sewer well 3 on one side of the garage body 4, and connects a siphon tube 12 between the sewer well 3 and the drainage trough 9. Through the cooperation of the siphon tube 12 and its internal siphon component 13, the water in the drainage trough 9 is completely discharged into the sewer well 3, and then the sewer well 3 and the rainwater well 2 are connected, and a check valve 19 is installed at the connection point to facilitate the water in the rainwater well 2 to flow back to the sewer well 3.

[0030] In addition, the siphon assembly 13 needs to be used in conjunction with the first flow meter 10 and the second flow meter 14. The first flow meter 10 is used to monitor the water volume in the drain trough 9. When the water flow reaches the set value, the first flow meter 10 will transmit the flow signal to the external controller, and the external controller will synchronously start the two electric cylinders 1306 to work. The telescopic rods of the two electric cylinders 1306 will be extended synchronously, and the two push rods 1308 will cooperate to push the two semicircular pistons 1303 to slide on the two first sliding rods 1304 respectively, so that the two semicircular pistons 1303 move synchronously toward the drain trough 9. At this time, negative pressure will be formed in the siphon tube 12. Then the external controller will control the telescopic rods of the two electric cylinders 1306 to retract synchronously, and drive the two semicircular pistons 1303 to retreat through the cooperation of the two push rods 1308. After repeated several times, the negative pressure inside the upper horizontal tube of the siphon tube 12 is obvious, and the water in the drainage trough 9 will be siphoned into the siphon tube 12. When the second flow meter 14 detects that the flow in the siphon tube 12 reaches the set value, the flow signal will be fed back to the external controller. The external controller will stagger the time to shut down the two electric cylinders 1306, so that the two semicircular pistons 1303 are staggered. At this time, the water in the drainage trough 9 will be siphoned into the siphon tube 12 and then discharged into the sewer well 3.

[0031] A sealing sleeve is provided at the position where the siphon tube 12 is slidably connected to the telescopic rod of the electric cylinder 1306 to ensure the sealing of the telescopic rod of the electric cylinder 1306 when it moves up and down, thereby preventing water from overflowing.

[0032] Example 5 Furthermore, two second slide bars 16 corresponding to the two mounting seats 1307 are vertically arranged inside the upper horizontal tube of the siphon tube 12. The top end of the second slide bar 16 is directly fixedly connected to the inner wall of the siphon tube 12, and the bottom end of the second slide bar 16 is indirectly fixedly connected to the inner wall of the siphon tube 12 through a horizontal block. The two mounting seats 1307 are slidingly connected to the two second slide bars 16 respectively. The second slide bar 16 is provided with a spring 17 located between the mounting seat 1307 and the horizontal block. The top end of the spring 17 is fixedly connected to the bottom of the mounting seat 1307, and the bottom end of the spring 17 is fixedly connected to the top of the horizontal block.

[0033] Those skilled in the art will appreciate that, in the present invention, the second slide bar 16 is provided to provide a guide and reinforcement function for the mounting seat 1307 , so that the mounting seat 1307 is more stable when moving up and down.

[0034] In addition, the mounting seat 1307 compresses the spring 17 during the descent process, and the mounting seat 1307 is rebounded by the spring 17 during the ascent process, making the entire process smoother and avoiding jamming.

[0035] Example 6 Furthermore, the semicircular piston 1303 includes a semicircular plate 21 slidably connected to the first sliding rod 1304, and the outer ring of the semicircular plate 21 is fixedly connected to a corresponding sealing ring 18. The arc-shaped outer rings of the two sealing rings 18 are in close contact with the inner wall of the siphon tube 12, and the opposite sides of the two sealing rings 18 are also in close contact. One end of the push rod 1308 is hinged to one side of the semicircular plate 21.

[0036] It will be understood by those skilled in the art that the sealing ring 18 provided in the present invention can ensure the airtightness between the two semicircular plates 21 and the inner wall of the siphon tube 12 when the two semicircular plates 21 move back and forth on the inner wall of the siphon tube 12. At the same time, it can ensure the airtightness between the two semicircular plates 21 to prevent gas leakage, thereby facilitating the formation of negative pressure in the upper horizontal tube of the siphon tube 12.

[0037] In addition, a sealing sleeve is provided at the position where the semicircular plate 21 is slidably connected to the first slide rod 1304 to ensure the air tightness of the connection when the semicircular plate 21 moves back and forth on the first slide rod 1304, thereby ensuring that the two semicircular pistons 1303 can stably form a negative pressure in the upper horizontal tube of the siphon tube 12.

[0038] Example 7 Furthermore, the two electric cylinders 1306 , the first flow meter 10 , and the second flow meter 14 are all electrically connected to an external controller.

[0039] It will be understood by those skilled in the art that, during the entire working process of the present invention, the external controller can automatically start and stop the two electric cylinders 1306 according to the flow signals of the first flow meter 10 and the second flow meter 14 to help the siphon tube 12 form a siphon negative pressure, and the entire process operates automatically.

[0040] In addition, the working principles and connection relationships between the electric cylinder 1306, the first flow meter 10, the second flow meter 14 and the external controller used in the present invention are all existing technologies, and therefore will not be elaborated on here.

[0041] Example 8 Furthermore, all components provided in the siphon tube 12 are made of 316 stainless steel or 9Cr18 stainless steel, and each component is coated with waterproof grease.

[0042] It will be understood by those skilled in the art that water often flows in the siphon tube 12 of the present invention, so the components provided in the siphon tube 12 are all made of 316 stainless steel or 9Cr18 stainless steel, and each component is coated with waterproof grease to prevent the components from rusting due to soaking in water and ensure that the components can work stably.

[0043] In addition, both 316 stainless steel and 9Cr18 stainless steel have strong corrosion resistance, especially 316 stainless steel, because it contains 2%-3% molybdenum, which significantly improves its resistance to chloride corrosion. It is especially suitable for harsh environments such as seawater and chemical media, but it needs to be used with waterproof grease to extend its life.

[0044] Example 9 Furthermore, a check valve 19 is installed at one end of the connecting pipe 15 extending into the interior of the rainwater well 2 , and an observation window 20 is provided at the top of the rainwater well 3 .

[0045] Those skilled in the art will appreciate that the check valve 19 provided in the present invention facilitates the water in the rainwater well 2 to flow back to the sewer well 3 , and the observation window 20 provided facilitates observation of the water level in the sewer well 3 .

[0046] A construction method for a basement waterproof structure: S1. When constructing the main body of garage 4, mechanically mix the properly proportioned PNC803 waterproofing additive powder and Portland cement in a dry state for 3 minutes to ensure uniform distribution. Then, after adding water, the total mixing time should be ≥ 5 minutes. The rotation speed should be controlled at 30-40 rpm to avoid caking or stratification. The water temperature should be preferably 20-30°C. In low-temperature environments <5°C, warm water should be used and the mixing time should be extended. The mixed concrete should be poured into the frame of garage main body 4 within 1 hour. Vibration should be dense but avoid excessive vibration that may cause aggregate sinking. Focus on strengthening vibration in leaky areas such as wall joints and wall pipes. Wet curing should begin within 24 hours after pouring, and the surface should be kept moist for ≥ 14 days. The curing temperature should be ≥ 5°C. Plastic film covering and regular water spraying can be used for dual curing. If localized leaks are found, PNC803 can be used to prepare a slurry and then be repaired by secondary application. S2. During the waterproofing process, a leveling layer 5 is first laid on top of the roof of the garage body 4. After it is completely solidified, an SBS modified asphalt waterproof membrane 6 is laid on top of the leveling layer 5. A drainage board 7 is then laid on top of the SBS modified asphalt waterproof membrane 6 to divert underground water leakage. A drainage trough 9 is then laid on the SBS modified asphalt waterproof membrane 6 so that water from the drainage board 7 can flow into the drainage trough 9. At this time, a first geotextile 8 is laid on the drainage board 7 to filter underground seepage water. A second geotextile 11 is then laid on the outer wall of the drainage trough 9. The overlap between the first geotextile 8 and the second geotextile 11 is then bonded. The waterproofing process is now complete. S3. To drain water, install a manhole 3 on one side of the garage body 4. A siphon tube 12 is connected between the manhole 3 and the gutter 9. The siphon tube 12 cooperates with the siphon assembly 13 within the manhole 12 to drain the water from the gutter 9 completely into the manhole 3. The manhole 3 is then connected to the rainwater well 2, and a check valve 19 is installed at the connection point to facilitate the return of water from the rainwater well 2 to the manhole 3. S4. The siphon assembly 13 needs to be used in conjunction with the first flow meter 10 and the second flow meter 14. The first flow meter 10 is used to monitor the amount of water in the drain trough 9. When the water flow reaches the set value, the first flow meter 10 will transmit the flow signal to the external controller, and the external controller will synchronously start the two electric cylinders 1306 to work. The telescopic rods of the two electric cylinders 1306 will be extended synchronously, and the two semicircular pistons 1303 will be pushed synchronously toward the drain trough 9 through the cooperation of the two push rods 1308. At this time, negative pressure will be formed in the siphon tube 12, and then the external controller will control the two electric cylinders 1306 to move synchronously. The telescopic rod of the cylinder 1306 is retracted synchronously, and the two semicircular pistons 1303 are driven to retreat through the cooperation of the two push rods 1308. After repeated several times, the negative pressure inside the upper horizontal tube of the siphon tube 12 is obvious, and the water in the drainage trough 9 will be siphoned into the siphon tube 12. When the second flow meter 14 detects that the flow in the siphon tube 12 reaches the set value, the flow signal is fed back to the external controller. The external controller will stagger the time to shut down the two electric cylinders 1306, so that the two semicircular pistons 1303 are staggered. At this time, the water in the drainage trough 9 will be siphoned into the siphon tube 12 and then discharged into the sewer well 3.

[0047] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A basement waterproof structure, comprising a ground surface (1), characterized in that: Inside the ground (1), there are arranged a rainwater well (2), a sewer well (3) and a garage body (4) in sequence from left to right. A leveling layer (5) is laid on the top of the garage body (4). An SBS modified asphalt waterproofing membrane (6) is laid on the top of the leveling layer (5). A drainage board (7) is laid on the top of the SBS modified asphalt waterproofing membrane (6). A first geotextile (8) is laid on the top of the drainage board (7). A drainage trough (9) is also provided on the top of the drainage board (7). The drainage trough (9) is arranged in a U shape. A first flow meter (10) for monitoring the water flow in the drainage trough (9) is provided on the drainage trough (9). The outer wall of the drainage trough (9) is provided with a first flow meter (10) for monitoring the water flow in the drainage trough (9). A second geotextile (11) is laid, the first geotextile (8) is connected to the second geotextile (11), a water outlet is provided on one side of the drainage trough (9) and is connected to a siphon (12), the siphon (12) is arranged in a Z shape, a siphon assembly (13) is arranged in the upper horizontal pipe of the siphon (12), a second flow meter (14) is provided on the upper horizontal pipe of the siphon (12) and is located between the siphon assembly (13) and the drainage trough (9), the other end of the siphon (12) is connected to the sewer (3), and a connecting pipe (15) is connected to one side of the sewer (3), and one end of the connecting pipe (15) extends to the inside of the rainwater well (2).

2. A basement waterproof structure according to claim 1, characterized in that: The silicate cement used in the construction of the garage body (4) is mixed with PNC803 waterproof additive, the standard dosage of which is 1%-2% of the weight of silicate cement, which can form a permeable crystallization waterproof system. The silicate cement dosage is ≥280kg / m³, the sand ratio is 35%-45%, and the water-cement ratio is controlled below 0.

5.

3. A basement waterproof structure according to claim 1, characterized in that: The SBS modified asphalt waterproofing membrane (6) comprises an upper SBS modified asphalt layer (601) and a lower SBS modified asphalt layer (602); the upper surface of the upper SBS modified asphalt layer (601) is uniformly distributed with a plurality of transverse U-shaped grooves (603) and a plurality of vertical U-shaped grooves (604); the plurality of transverse U-shaped grooves (603) and the plurality of vertical U-shaped grooves (604) are arranged crosswise; the lower surface of the upper SBS modified asphalt layer (601) is composited with an upper filament polyester felt base layer (605), an upper HDPE waterproofing layer (606), a glass fiber felt layer (607), a lower HDPE waterproofing layer (608) and a lower filament polyester felt base layer (609); the lower surface of the lower filament polyester felt base layer (609) is bonded and composited with the upper surface of the lower SBS modified asphalt layer (602).

4. A basement waterproof structure according to claim 1, characterized in that: The siphon assembly (13) includes two fixed plates (1301) fixedly connected to the upper horizontal tube of the siphon tube (12) and arranged at intervals. A plurality of water flow holes (1302) are horizontally penetrated on the two fixed plates (1301). Two semicircular pistons (1303) for matching are arranged inside the upper horizontal tube of the siphon tube (12). The two semicircular pistons (1303) cooperate to form a circular piston that matches the inner wall of the upper horizontal tube of the siphon tube (12). The arc-shaped outer rings of the two semicircular pistons (1303) are in close contact with the inner wall of the siphon tube (12). The opposite sides of the two semicircular pistons (1303) are also in close contact. Two horizontal pistons (1303) are slidably connected to the two semicircular pistons (1303). A first sliding rod (1304) is provided, and both ends of the first sliding rod (1304) are respectively fixedly connected to two fixed plates (1301); a protection box (1305) is fixedly connected to the outside of the upper horizontal tube of the siphon tube (12); two electric cylinders (1306) corresponding to the two semicircular pistons (1303) are fixedly connected inside the protection box (1305); the telescopic rods of the two electric cylinders (1306) extend into the interior of the siphon tube (12) and are fixedly connected to a mounting seat (1307); the telescopic rods of the electric cylinders (1306) are slidably connected to the siphon tube (12); and push rods (1308) are respectively hinged between the two mounting seats (1307) and the two semicircular pistons (1303).

5. A basement waterproof structure according to claim 4, characterized in that: Two second slide bars (16) corresponding to the two mounting seats (1307) are vertically arranged inside the upper horizontal tube of the siphon tube (12), the top end of the second slide bar (16) is directly fixedly connected to the inner wall of the siphon tube (12), and the bottom end of the second slide bar (16) is indirectly fixedly connected to the inner wall of the siphon tube (12) through a horizontal block. The two mounting seats (1307) are slidingly connected to the two second slide bars (16) respectively, and a spring (17) is sleeved on the second slide bar (16) and is located between the mounting seat (1307) and the horizontal block. The top end of the spring (17) is fixedly connected to the bottom of the mounting seat (1307), and the bottom end of the spring (17) is fixedly connected to the top of the horizontal block.

6. A basement waterproof structure according to claim 4, characterized in that: The semicircular piston (1303) includes a semicircular plate (21) slidably connected to a first sliding rod (1304), the outer ring of the semicircular plate (21) is fixedly connected to a matching sealing ring (18), the arc-shaped outer rings of the two sealing rings (18) are in close contact with the inner wall of the siphon tube (12), and the opposite sides of the two sealing rings (18) are also in close contact, and one end of the push rod (1308) is hinged to one side of the semicircular plate (21).

7. The basement waterproof structure according to claim 4, characterized in that: The two electric cylinders (1306), the first flow meter (10) and the second flow meter (14) are all electrically connected to an external controller.

8. The basement waterproof structure according to claim 1, characterized in that: The components provided in the siphon tube (12) are all made of 316 stainless steel or 9Cr18 stainless steel, and each component is coated with waterproof grease.

9. The basement waterproof structure according to claim 1, characterized in that: A check valve (19) is installed at one end of the connecting pipe (15) extending into the interior of the rainwater well (2), and an observation window (20) is provided at the top of the rainwater well (3).

10. A construction method for a basement waterproof structure, characterized in that ； S1. When constructing the main body of the garage (4), mechanically stir the PNC803 waterproof additive powder and silicate cement in a dry state for 3 minutes to ensure uniform distribution. Then, after adding water, the total stirring time should be ≥5 minutes. The speed should be controlled at 30-40rpm to avoid caking or stratification. The water temperature should be 20-30℃. In low temperature environments (<5℃), warm water should be used and the stirring time should be extended. After mixing, the concrete should be poured into the frame of the main body of the garage (4) within 1 hour. The vibration should be dense but avoid excessive vibration that causes the aggregate to sink. Focus on strengthening the vibration of the wall joints, wall pipes and other easily seepage areas. Start wet curing within 24 hours after pouring, keep the surface moist for ≥14 days, and the curing temperature should be ≥5℃. Plastic film covering + regular water spraying can be used for double curing. If local leakage is found, PNC803 can be used to make a slurry for secondary brushing and repair. S2. During the waterproofing treatment, a leveling layer (5) is first laid on the top plate of the garage body (4). After it is completely solidified, an SBS modified asphalt waterproof membrane (6) is laid on the top of the leveling layer (5). Then, a drainage board (7) is laid on the top of the SBS modified asphalt waterproof membrane (6) to facilitate diversion of underground water leakage. Then, a drainage trough (9) is laid on the SBS modified asphalt waterproof membrane (6) so that the water in the drainage board (7) can flow into the drainage trough (9). At this time, a first geotextile (8) is laid on the drainage board (7) to facilitate filtering of underground seepage water. Then, a second geotextile (11) is laid on the outer wall of the drainage trough (9). Then, the overlap between the first geotextile (8) and the second geotextile (11) is bonded. At this time, the waterproofing treatment is completed. S3. When draining, a sewer well (3) is installed on one side of the garage body (4), and a siphon (12) is connected between the sewer well (3) and the drainage trough (9). The water in the drainage trough (9) is completely discharged into the sewer well (3) through the cooperation of the siphon (12) and its internal siphon assembly (13). Then, the sewer well (3) and the rainwater well (2) are connected, and a check valve (19) is installed at the connection point to facilitate the water in the rainwater well (2) to flow back to the sewer well (3); S4. The siphon assembly (13) needs to be used in conjunction with the first flow meter (10) and the second flow meter (14). The first flow meter (10) is used to monitor the amount of water in the drain trough (9). When the water flow reaches the set value, the first flow meter (10) will transmit the flow signal to the external controller, and the external controller will synchronously start the two electric cylinders (1306) to work. The telescopic rods of the two electric cylinders (1306) will be extended synchronously, and the two semicircular pistons (1303) will be pushed synchronously toward the drain trough (9) through the cooperation of the two push rods (1308). At this time, negative pressure will be formed in the siphon tube (12), and then the external controller will control the two electric cylinders. The telescopic rods (1306) are retracted synchronously, and the two semicircular pistons (1303) are driven to retreat by the cooperation of the two push rods (1308). After repeated several times, the negative pressure inside the upper horizontal pipe of the siphon tube (12) is obvious, and the water in the drainage trough (9) will be siphoned into the siphon tube (12). When the second flow meter (14) detects that the flow in the siphon tube (12) reaches the set value, the flow signal is fed back to the external controller, and the external controller will stagger the time to shut down the two electric cylinders (1306), so that the two semicircular pistons (1303) are staggered. At this time, the water in the drainage trough (9) will be siphoned into the siphon tube (12) and then discharged into the sewer (3).

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