CN118407467A

CN118407467A - Basement waterproof construction method

Info

Publication number: CN118407467A
Application number: CN202410574959.XA
Authority: CN
Inventors: 杨振; 周峰; 刘晟嘉; 董鑫; 齐欣
Original assignee: China Construction Fourth Engineering Division Corp Ltd
Current assignee: China Construction Fourth Engineering Division Corp Ltd
Priority date: 2024-05-10
Filing date: 2024-05-10
Publication date: 2024-07-30

Abstract

The invention discloses a basement waterproof construction method, which belongs to the technical field of building maintenance and repair, and comprises the following steps: s10: preparing construction; s20: searching and marking the leakage part and cleaning sundries; s30: checking the basement bottom plate structure, drilling holes along the leakage part and burying needles; s40: grouting and repairing the water glass curtain; s50: sealing and plugging the high-pressure grouting concrete crack; s60: proportioning according to a certain proportion, and curing and checking after coating a waterproof reinforcing layer; s70: establishing protective preparation measures at the post-cast strip of the bottom plate, and marking leakage points and cracks of the post-cast strip; s80: v-shaped grooves are formed in the penetration positions, water stopping materials are filled in the V-shaped grooves, and holes are drilled beside the leakage points; s90: grouting repairing and brushing waterproof materials. The invention has the beneficial effects that: the existing cracks and leakage points are repaired by using water glass curtain grouting and high-pressure grouting concrete crack sealing, so that the waterproof efficiency and durability of the structure are improved. The waterproof reinforcing layer is accurately proportioned and painted in proportion, so that the long-term waterproof effect is ensured.

Description

Basement waterproof construction method

Technical Field

The invention relates to the technical field of building maintenance and repair, in particular to a basement waterproof construction method.

Background

Although many waterproof technical measures are currently available, various leakage phenomena still occur due to the high permeability characteristics of underground water and the characteristics of the underground space structure. The existing basement waterproof fortification measure is only one-step self-waterproof concrete, the concrete is made of rigid materials, if the concrete is not vibrated in real time, the maintenance is not in place, and the environmental influence in the use process can cause the concrete compactness to not meet the design requirement or the concrete itself to generate cracks, if the penetrating cracks happen, the groundwater can be directly leaked into a room, and the leakage condition occurs; if the crack is a non-penetrating crack, the concrete crack gradually increases with the erosion of the groundwater to the steel bar in the structural concrete until the penetrating crack appears. In basement structures, telescoping post-cast strip is indeed an important focus of waterproofing challenges, whose design and construction quality directly affect the waterproofing performance of the entire building. Post-cast strip is typically left behind in the concrete placement of the structure to compensate for shrinkage of the concrete due to temperature changes or other factors during construction, the location of which is often a potential source of leakage.

Prolonged water exposure exposes the basement floor concrete structure to moisture, resulting in corrosion and erosion of the concrete, compromising its strength and stability. The chemicals in the water may also react with the concrete, further exacerbating the extent of structural damage. The steel bars in the bottom plate rust after soaking in water, so that the bonding force between the steel bars and the concrete is destroyed, and the bearing capacity of the structure is weakened. The rusted steel bars can expand to further damage surrounding concrete, and plays a role in vicious circle in the problem of basement bottom plate leakage. Long-term soaking in water also results in moist basement air, increasing the risk of mold, fungus and bacteria growth, thereby negatively affecting human health. This may lead to respiratory problems, allergic reactions, skin diseases and other health problems associated with the indoor environment. In this case, the waterproofing treatment of the post-cast strip portion is particularly critical. This increases the risk of leakage significantly, since most are not provided with a flexible waterproof layer outside the construction structure. Cold joints exist between most underground two-layer concrete structure bottom plates and fine stone concrete layers, and the structural characteristics easily become channels for water flow channeling, so that the problem of basement leakage is caused. Cold joints are non-preset joints formed during concrete casting due to excessively long casting intervals, and the joints are not effectively sealed, so that moisture can enter the structure along the path to cause leakage.

Disclosure of Invention

In order to overcome the defects of the prior art, the basement waterproof construction method is characterized in that existing cracks and leakage points are repaired by using water glass curtain grouting and high-pressure grouting concrete crack sealing, so that the waterproof efficiency and durability of the structure are greatly improved. The waterproof reinforcing layer is accurately proportioned and painted in proportion, so that the long-term waterproof effect is ensured.

The technical scheme adopted for solving the technical problems is as follows: in a basement waterproofing method, the improvement comprising the steps of:

s10: preparing construction, determining required materials, and establishing perfect construction measures;

S20: searching and marking the leakage part and cleaning sundries;

s30: checking the basement bottom plate structure, drilling holes along the leakage part and burying needles;

s40: grouting and repairing the water glass curtain;

s50: sealing and plugging the high-pressure grouting concrete crack;

S60: proportioning according to a certain proportion, and curing and checking after coating a waterproof reinforcing layer;

s70: establishing protective preparation measures at the post-cast strip of the bottom plate, and marking leakage points and cracks of the post-cast strip;

S80: v-shaped grooves are formed in the penetration positions, water stopping materials are filled in the V-shaped grooves, and holes are drilled beside the leakage points;

s90: grouting repairing and brushing waterproof materials.

Further, the specific steps of the step S20 are as follows:

S201: manually checking and marking the penetration points and cracks, and pumping away accumulated water by using a water pump to ensure that the ground is as dry as possible so as to clean the bottom better;

S202: using a broom and an iron shovel to clean up sundries and scale at the leaking part, wherein firm sundries are scraped by the iron shovel, and smaller sundries are cleaned by the broom;

S203: the leakage part is thoroughly cleaned by using a high-pressure cleaner and cleaning solution to remove residual impurities, so that the surface of the new stubble of concrete is ensured to be completely clean, and the bonding effect of the grouting material and the original structure is improved.

Further, the specific steps of the step S30 are as follows:

s301: checking the basement bottom plate structure, determining the position of drilling holes penetrating through the basement bottom plate, and ensuring that the prepared grouting pipe, grouting pump and water tap are complete in equipment and normal in function;

S302: drilling along two sides of the crack by using a drilling tool, and using a drill bit with the diameter of 13-15 mm, wherein the drilling hole must pass through the crack but not penetrate through the whole structure, and the penetration intersection depth of the drilling hole and the crack is less than or equal to 400mm;

s303: installing a water stop needle in the drill hole, arranging expansion rubber behind the needle, and tightening by a special inner hexagonal wrench, so that no gap and no water leakage exist between the periphery of the grouting nozzle and the drill hole;

s304: the special grouting pipe is buried in a hole penetrating the bottom plate, and the upright faucet is arranged above the pipe, so that the stability and the tightness of the grouting pipe are ensured.

Further, the step S40 specifically includes the steps of:

S401: according to the proportion of the water glass liquid material and the cement, the prepared grouting material is ensured to be uniform, proper grouting pressure is selected according to the compaction condition and the structure thickness of the reinforced part, the initial pressure is usually controlled to be 0.3MPa, and the final pressure is controlled to be within 1 MPa;

s402: when the water level below the bottom plate structure is too high, the water tap is opened to perform water level pressure relief until no water is discharged, the water taps on all grouting pipes are closed, the control can be opened one by one during grouting,

S403: sequentially carrying out high-pressure grouting along the basement bottom plate structure from left to right, opening water taps of two adjacent grouting pipes, and keeping the rest in a closed state, and grouting with one pipe until grout is emitted from the adjacent grouting pipe;

S404: sequentially completing grouting of the whole bottom plate structure, and ensuring that grouting uniformly covers the whole basement bottom plate area;

s405: after grouting is completed, thorough inspection is carried out to ensure that the grouting effect of each grouting hole is good;

S406: and (3) in the areas with poor slurry leakage and grouting effects, repairing and trimming the slurry, and plugging grouting holes by using corresponding materials to ensure the structural integrity of the bottom plate.

Further, the step S50 specifically includes the steps of:

s501: injecting clean water into the grouting nozzle by using a high-pressure grouting machine, observing the condition of a water outlet point, cleaning dust in the seam, and ensuring the cleaning of the seam;

s502: sealing the surface of the crack with water seepage during the seam washing by using a plugging device 50 or seam sealing glue to prevent the slurry leakage phenomenon during the chemical slurry filling;

s503: using a high-pressure grouting machine to pour epoxy grouting liquid into the grouting holes, sequentially performing from top to bottom in a vertical plane and from one end in a plane, maintaining the pressure of the adjacent holes after grouting is started for 3-5 minutes, stopping grouting of the holes, and re-grouting the adjacent grouting holes;

S505: after the completion of grouting and no water leakage are confirmed, the exposed grouting nozzle can be removed or knocked off, and the immobilized and overflowed grouting liquid is cleaned up, so that the grouting machine is prevented from being blocked;

s506, repairing and sealing the grouting opening by using the plugging device 50 material, so as to ensure the integrity and the tightness of the water-stopping engineering.

Further, the step S60 specifically includes the steps of:

s601: the coating is directly constructed on the structural layer, and the coating is required to be washed clean by clean water before construction until a clean concrete base surface is exposed;

s602: proportioning according to the mixing ratio of cement to powder of 1:0.325, wherein the dosage of each preparation should be used up within 20-30 minutes;

s603: the coating is carried out twice, and when the coating is carried out on a large surface, the interval between the two coating is not less than 4 hours;

S604: after finishing brushing, wet curing is carried out for 24 hours by using clear water;

s605: and sprinkling water on the vertical surfaces for multiple times, so as to avoid flushing the unreacted and solidified coating by large water, keep uniform sprinkling water, moisten the coating without accumulated water, and reserve 3-5 hours of intervals between every two times of moist water so as to promote the normal reaction and solidification of the coating.

Further, the step S70 specifically includes the steps of:

S701: building a fence around the construction area to isolate the construction area from the outside, ensure construction safety and prevent materials and sundries from falling off to influence traffic;

s702: removing the concrete cushion layer in the traffic lane area so as to facilitate subsequent waterproof construction;

s703: draining water in the affected area before construction to ensure no accumulated water;

S704: after cleaning, the leakage points and cracks are required to be marked so as to determine the key areas of construction and ensure that the waterproof material can accurately cover the areas.

Further, the step S80 specifically includes the steps of:

S801: removing the structural joint into a V-shaped groove with the width of 3cm to 5cm and the depth of 4cm to 5cm, thoroughly cleaning, and creating a good substrate for the subsequent filling material and the water stop strip;

S802: filling the V-shaped groove with a plugging device 50 and a polyurethane cement material, embedding a water stop bar, and grouting two sides of a structural joint after the material is solidified to reach a certain strength so as to enhance the waterproof effect;

S803: marking the positions of grouting holes on one side of a construction joint by using red spray paint, and adjusting the hole site spacing according to water leakage pressure, water leakage amount, gap size and grouting materials, wherein the hole site spacing is kept between 300mm and 500 mm;

S804: and (3) drilling holes at an angle of 45 degrees at a position 3-4 cm beside the leakage point by using an electric drill according to the marked position, wherein the aperture is 10mm generally, and the depth is 1/2-1/3 of the thickness of the structural layer, and installing a grouting nozzle after finishing, so that proper embedding and fastening are ensured.

Further, the step S90 specifically includes the steps of:

S901: the grouting nozzle is connected with an electric grouting pump, the pressure is monitored through a pressure gauge arranged at one end in the grouting process, a modified epoxy grouting material is used for grouting, the grouting nozzle is removed after grouting is completed, and a plugging device 50 is used for sealing the hole;

S902: coating a special functional back water pressure waterproof material with the thickness of 2mm on the treated structure, so that the integrity and the waterproof effect of the waterproof layer are enhanced;

S903: after the waterproof treatment is finished, the concrete cushion layer with the thickness of 150mm is poured again, a drainage stone layer is reserved at the position of the post-pouring belt, drainage ditches are reserved at two sides of a traffic lane, and the upper layer is sealed by using a cast iron drainage grate so as to ensure good drainage performance.

Further, in the step S901, grouting is performed in the order from bottom to top to left to right, the acrylic acid salt is poured from the first grouting hole at the bottom and the first grouting hole at the left, the pouring of the second grouting hole is started after the pouring is completed, the pouring is stopped from the first grouting hole at the second row until the second grouting hole at the second row is out or the first grouting hole at the third row is out, the pouring is changed to the second grouting hole at the second row until the third grouting hole is out, and so on.

The beneficial effects of the invention are as follows: the existing cracks and leakage points are repaired by using water glass curtain grouting and high-pressure grouting concrete crack sealing, so that the waterproof efficiency and durability of the structure are greatly improved. The waterproof reinforcing layer is accurately proportioned and painted in proportion, so that the long-term waterproof effect is ensured.

Drawings

FIG. 1 is a flow chart of a basement waterproofing method of the present invention;

FIG. 2 is a schematic plan view of curtain grouting for a basement waterproofing construction method of the present invention;

FIG. 3 is a schematic illustration of a curtain grouting cross-section of a basement waterproofing method of the present invention;

Fig. 4 is a schematic diagram of crack grouting waterproofing of a basement waterproofing construction method of the present invention.

Detailed Description

The invention will be further described with reference to the drawings and examples.

The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the invention can be interactively combined on the premise of no contradiction and conflict.

Referring to fig. 1 to 4, the present invention provides a basement waterproofing method, which in this embodiment comprises the following steps:

S20: searching and marking the leakage part and cleaning sundries;

S30: checking the structure of the basement floor 10, drilling holes along the leaking part and burying needles 80;

s40: grouting and repairing the water glass curtain;

s50: sealing and plugging the high-pressure grouting concrete crack;

S60: proportioning according to a certain proportion, and curing and checking after coating the waterproof reinforcing layer 60;

s70: establishing protective preparation measures at the post-cast strip of the bottom plate 10, and marking leakage points and cracks of the post-cast strip;

s90: grouting repairing and brushing waterproof materials.

According to the invention, through the series of operations, the leakage problem is solved immediately, the long-term waterproof effect and the continuous stability of the structure are emphasized, and the comprehensive protection is provided for the building structure. The existing cracks and leakage points are repaired by using water glass curtain grouting and high-pressure grouting concrete crack sealing, so that the waterproof efficiency and durability of the structure are greatly improved. The waterproof reinforcing layer 60 is precisely proportioned and painted, thus guaranteeing the long-term waterproof effect.

The step S20 specifically comprises the following steps:

By manually inspecting and marking the penetration points and cracks, the areas that need repair can be more accurately determined, thereby avoiding omission and repeated work. The water suction pump is used for pumping away the accumulated water, so that the ground is ensured to be dry, better working conditions are created for subsequent cleaning and repairing work, and the adhesive effect of the repairing material and the performance of the waterproof layer are improved. The leakage part is thoroughly cleaned by using the high-pressure cleaning machine and the cleaning solution, so that residual impurities can be removed, the surface of the new stubble of concrete is ensured to be completely clean, the bonding effect of the grouting material is improved, and the integrity and long-term effectiveness of the waterproof layer are ensured.

Further, the specific steps of the step S30 are as follows:

S301: checking the structure of the basement bottom plate 10, determining the position of drilling holes penetrating through the basement bottom plate 10, and ensuring that the prepared grouting pipe 20, grouting pump and water tap 30 are complete in equipment and normal in function;

S302: drilling along two sides of the crack by using a drilling tool, wherein the drilling must pass through the crack but not penetrate through the whole structure by using a drill bit with the diameter of 14mm, and the penetration intersection depth of the drilling and the crack is 380mm;

S303: a water stop needle 80 is arranged in the drill hole, and expansion rubber is arranged behind the needle 80 and is screwed by a special inner hexagonal wrench, so that no gap and no water leakage exist between the periphery of the grouting nozzle and the drill hole;

S304: the special grouting pipe 20 is buried in a hole penetrating the bottom plate 10, and the upright faucet 30 is installed above the pipe, so that stability and sealing performance of the grouting pipe 20 are ensured.

Specifically, the drilling angle is 45 degrees, the drilling depth is 500mm, and the drill bit depth is 500mm. The spacing between the boreholes should be controlled at 50cm. Using the drilling technique of the specific diameter and depth described above, it is ensured that the drill hole passes through the fracture without compromising the integrity of the entire structure, which helps the grouting material to better penetrate and close the fracture. By controlling the interval between the drill holes, the grouting material can be ensured to uniformly cover the whole area to be repaired, and the comprehensiveness and uniformity of the waterproof effect are improved. By installing the water stop needle 80 in the drilled hole and fastening by using the expansion rubber, the sealing performance and the waterproof effect in the grouting process are ensured, the leakage of grouting material is avoided, and the integrity and the durability of the waterproof layer are improved.

Further, the step S40 specifically includes the steps of:

s402: when the water level below the bottom plate 10 is too high, the water tap 30 is opened to release the water level until no water is discharged, the water taps 30 on all grouting pipes 20 are closed, the control can be opened one by one during grouting,

S403: high-pressure grouting is sequentially carried out along the structure of the basement bottom plate 10 from left to right, the water taps 30 of two adjacent grouting pipes 20 are opened, and the rest of the grouting pipes are kept in a closed state, and grouting is started by one pipe until grout is emitted from the adjacent grouting pipes 20;

S404: sequentially completing grouting of the whole bottom plate 10 structure, and ensuring that grouting uniformly covers the whole basement bottom plate 10 area;

S406: and (3) in areas with poor slurry leakage and grouting effects, repairing and trimming the slurry, and plugging grouting holes by using corresponding materials to ensure the structural integrity of the bottom plate 10.

Water glass liquid material: cement = liquid: powder=1:0.35, and the water glass has good permeability and cohesiveness, and is suitable for waterproof and reinforcement engineering. The silicate gel can be generated by reacting with cement, so that cracks and holes in the structure can be effectively filled, and the compactness and strength of the structure are improved. When grouting operation is performed, grouting pressure and flow rate should be monitored to avoid structural damage caused by excessive pressure. Quality control of grouting materials is key to ensuring repairing effect, water glass and cement with qualified quality should be selected, and mixing proportion and grouting technology must be executed strictly according to engineering requirements. After the entire grouting process is completed, a sufficient curing period is required to ensure that the grouting material achieves the intended waterproof and reinforcing effects.

Further, the step S50 specifically includes the steps of:

s503: using a high-pressure grouting machine to pour epoxy grouting liquid 70 into the grouting holes, keeping the pressure of the adjacent holes for 5 minutes after grouting is started according to the sequence from the vertical face to the bottom and from one end of the plane, stopping grouting of the holes, and re-grouting the adjacent grouting holes;

s505: after the completion of grouting and no water leakage are confirmed, the exposed grouting nozzle can be removed or knocked off, and the immobilized and overflowed grouting liquid 70 is cleaned up, so that the grouting machine is prevented from being blocked;

The high-pressure grouting machine is used for injecting clean water to clean the gaps, impurities and dust in the gaps are removed, the grouting material is ensured to be better attached to the surfaces of the gaps, and the durability and the effectiveness of the repairing effect are improved. The sealing of the water seepage cracks prevents slurry from running, so that grouting materials can be prevented from running away from the cracks when chemical slurry is injected, the maximum benefit of the grouting materials is ensured, and environmental pollution and material waste caused by slurry running of the materials are avoided. The sequential steps and pressure control of the epoxy grouting 70 help ensure uniform grouting throughout the repair area, improving the sealing performance of the cracks and crevices. The method can effectively and evenly distribute grouting liquid in the area needing reinforcement so as to achieve good reinforcement and sealing effects. The fixed overflows are cleaned after grouting, the tidy and beautiful area after grouting can be ensured, and the cured grouting liquid is prevented from hardening and possibly blocking grouting equipment, so that the normal use of the equipment is maintained. The plugging device 50 is used for repairing and sealing the grouting opening, which is an important step for finally ensuring the integrity and the tightness of the water-stopping engineering. By performing professional plugging treatment on the grouting holes, the cracks and the gaps can be finally ensured to be effectively sealed, and the waterproof effect is ensured for a long time.

The step S60 specifically comprises the following steps:

S602: mixing according to the mixing ratio of 1:0.325, wherein the dosage of each mixing should be used up within 30 minutes;

S603: the coating is carried out twice, and when the coating is carried out on a large surface, the interval between the two coating is 3 hours;

S605: and sprinkling water on the vertical surfaces for multiple times, so as to avoid flushing the unreacted and solidified coating by large water, keep uniform sprinkling water, moisten the coating without accumulated water, and keep a 3-hour interval between every two times of moist water so as to promote the normal reaction and solidification of the coating.

The step S70 specifically comprises the following steps:

Further, the step S80 specifically includes the steps of:

s801: removing the structural joint into a V-shaped groove with the width of 3cm and the depth of 4cm, and thoroughly cleaning the groove to create a good substrate for the subsequent filling material and the water stop strip 40;

S802: filling the V-shaped groove with a plugging device 50 and polyurethane cement materials, embedding a water stop strip 40, and grouting two sides of a structural joint after the materials are solidified to reach a certain strength so as to enhance the waterproof effect;

S803: marking the positions of grouting holes on one side of a construction joint by using red spray paint, and adjusting the hole site spacing according to water leakage pressure, water leakage amount, gap size and grouting materials to keep 300mm spacing;

S804: and (3) drilling holes at an angle of 45 degrees at a position 3cm beside the leakage point by using an electric drill according to the marked position, wherein the aperture is 10mm generally, and the depth is 1/2 of the thickness of the structural layer, and installing a grouting nozzle after finishing to ensure proper embedding and fastening.

The V-shaped grooves are removed from the structural joints and cleaned, which helps to ensure that the filling material has sufficient attachment area and embedding space, thereby improving the bonding strength of the water stop strip 40 and the filling material and enhancing the durability of the waterproof layer.

The V-shaped grooves are filled with the plugging composition 50 and the polyurethane cement material and the water stop strips 40 are embedded in the V-shaped grooves, and the materials have high bonding strength and water resistance and can effectively block the permeation path of water flow. The solidified material can form a firm waterproof layer, and the grouting treatment further enhances the waterproof effect of the structural joint. The 45-degree angle of the drilling hole is favorable for the grouting material to better penetrate into the deep part of the gap, and the fastening of the grouting nozzle ensures that the grouting material cannot run off, so that the stability of the grouting effect is improved.

The step S90 specifically comprises the following steps:

The grouting nozzle is connected with the electric grouting pump, and the modified epoxy grouting material is used for grouting to fill the cracks and the tiny gaps in the gaps, so that a firm waterproof layer is formed. Grouting is performed in a sequence from bottom to top to left to right, wherein acrylic acid salt starts to be infused from the first grouting hole at the bottom and the first grouting hole at the left, a second row of grouting holes starts to be infused after the grouting is completed, grouting is stopped from the first grouting hole at the second row until the second grouting hole at the second row is out of slurry or the first grouting hole at the third row is out of slurry, grouting is changed to the second grouting hole at the second row until the third grouting hole is out of slurry, and the like. Monitoring the pressure during grouting helps ensure uniform filling of the grouting material, while the plugging device 50 is used to close the holes after removal of the grouting nozzle to prevent water from re-penetrating. The grouting device is favorable for ensuring the uniformity and pressure control of grouting, improving the compactness and durability of a waterproof layer, and meanwhile, the closed holes ensure the clean structure surface after grouting, so that the requirement for future maintenance is reduced.

While the preferred embodiment of the present application has been described in detail, the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present application, and the equivalent modifications or substitutions are included in the scope of the present application as defined in the appended claims.

Claims

1. The basement waterproof construction method is characterized by comprising the following steps of:

S20: searching and marking the leakage part and cleaning sundries;

s40: grouting and repairing the water glass curtain;

s50: sealing and plugging the high-pressure grouting concrete crack;

s90: grouting repairing and brushing waterproof materials.

2. The basement waterproofing method according to claim 1, wherein the step S20 comprises the following specific steps:

3. The basement waterproofing method according to claim 1, wherein the step S30 comprises the following specific steps:

4. The basement waterproofing method according to claim 1, wherein the step S40 comprises the following specific steps:

5. The basement waterproofing method according to claim 1, wherein the step S50 comprises the following specific steps:

6. The basement waterproofing method according to claim 1, wherein the step S60 comprises the following specific steps:

7. The basement waterproofing method according to claim 1, wherein the step S70 specifically comprises the steps of:

8. The basement waterproofing method according to claim 1, wherein the step S80 specifically comprises the steps of:

9. The basement waterproofing method according to claim 1, wherein the step S90 specifically comprises the steps of:

10. The method according to claim 9, wherein in the step S901, grouting is performed in the order of from bottom to top to left to right, wherein the first grouting holes on the left side are filled with acrylic acid salt, the second grouting holes are filled after the filling, the grouting is stopped from the first grouting holes on the second row until the second grouting holes on the second row are filled or the grouting is stopped from the first grouting holes on the third row, the grouting is changed from the second grouting holes on the second row until the grouting is changed from the third grouting holes on the third row, and so on.