Composite waterproof wall surface construction method, structure and construction device

Abstract

The invention discloses a composite waterproof wall surface construction method, structure and construction device, and relates to the technical field of constructional engineering waterproofing, and the method comprises the steps that a crack distribution thermodynamic diagram of a wall surface base layer is obtained; based on the crack distribution thermodynamic diagram, nanometer modified polymer cement mortar is laid to construct a base layer reinforcing layer; paving an intelligent polymer self-adhesive film coiled material on the base layer enhancement layer to construct a waterproof main layer; the waterproof main layer is coated with sealant to form a sealing reinforcing layer; and a photocatalytic coating is sprayed on the sealing reinforcing layer to form a protective surface layer. The multi-layer composite waterproof structure is constructed, the waterproof performance, durability and environmental protection performance are considered, the compressive strength is improved through the nano-modified mortar, the temperature-sensitive self-adhesion coiled material adapts to the more severe temperature, automatic construction equipment is adopted, manual errors are reduced, and materials and the technology are optimized so as to cover more scene requirements.

Description

Technical Field

[0001] The present application relates to the technical field of building engineering waterproofing, and particularly relates to a construction method, structure and construction device for a composite waterproof wall surface. Background Art

[0002] The traditional building waterproofing system has long relied on two basic materials, namely coatings and membranes. However, its performance limitations have become increasingly prominent. Traditional waterproof coatings have problems such as insufficient flexibility after curing, easy aging and cracking. Especially at complex joints such as corners and pipe roots, manual brushing is prone to defects such as uneven thickness and missed coating, resulting in a leakage rate as high as 15% - 20%. Although waterproof membranes have the advantage of continuous waterproofing, due to the limitation of physical bonding technology, they are prone to air pockets and debonding under uneven substrates or vibrating environments. The treatment of lap joints relies on hot melt welding technology, and leakage channels are easily formed when the construction accuracy is insufficient.

[0003] In cross - field engineering applications, the existing technical system is difficult to meet the needs of differentiated scenarios. When underground projects bear high water pressure, single - layer waterproof structures are prone to stress damage, and the anti - seepage pressure is generally lower than 0.8 MPa; in industrial factories, the erosion of acid - base media shortens the service life of ordinary waterproof layers to 3 - 5 years; in transportation hubs, due to temperature difference cycles and vibration loads, the risk of joint cracking of traditional materials increases by more than 3 times. More seriously, the existing processes have exceeded VOC emissions and low construction intelligence levels, and cannot meet the development requirements of green buildings and intelligent construction.

[0004] Therefore, in the case of material performance and complex working conditions, traditional waterproof coatings are prone to aging and cracking, the brushing quality depends on manual skills, the waterproof effect at complex parts is poor, and there are limitations in cross - field applications. It is necessary to develop a new type of composite waterproof structure with durability, self - adaptability and intelligence.

[0005] The above content is only used to assist in understanding the technical solution of the present application, and does not represent an admission that the above content is prior art. Summary of the Invention

[0006] The main purpose of the present application is to provide a construction method, structure and construction device for a composite waterproof wall surface, aiming to solve the technical problem of how to develop a new type of composite waterproof structure with durability, self - adaptability and intelligence, given that traditional waterproof coatings are prone to aging and cracking, the brushing quality depends on manual skills, the waterproof effect at complex parts is poor, and there are limitations in cross - field applications.

[0007] To achieve the above object, the present application proposes a method for developing a new type of composite waterproof structure with durability, self - adaptability and intelligence. The method includes:

[0008] Obtain the thermal map of crack distribution on the wall surface substrate;

[0009] Lay a nano-modified polymer cement mortar based on the crack distribution heat map to construct a base strengthening layer;

[0010] Lay an intelligent polymer self-adhesive film coil on the base strengthening layer to construct a main waterproof layer;

[0011] Apply a sealant to the main waterproof layer to form a seal strengthening layer;

[0012] Spray a photocatalytic coating on the seal strengthening layer to form a protective surface layer.

[0013] In one embodiment, before the step of obtaining the crack distribution heat map of the wall base layer, it includes:

[0014] Use an automated ash removal device to remove the floating ash and release agent residue on the wall base layer, and perform targeted cleaning on the oil stain area through laser ablation technology.

[0015] In one embodiment, the step of obtaining the crack distribution heat map of the wall base layer includes:

[0016] Use 3D laser to scan the wall base layer;

[0017] Generate a base BIM model through point cloud processing software, and mark the crack information according to the base BIM model. The crack information at least includes the crack position, length, width, and depth;

[0018] Calculate the risk value based on the crack information and divide the risk level;

[0019] Map the risk level to a color gradient through the base BIM model, and generate a crack distribution heat map covering the surface of the base BIM model.

[0020] In one embodiment, the step of laying a nano-modified polymer cement mortar based on the crack distribution heat map to construct a base strengthening layer includes:

[0021] Convert the crack distribution heat map into a construction unit grid;

[0022] Arrange the construction sequence of the construction unit grid based on the color gradient of the construction unit grid;

[0023] Obtain the heat value of the current construction unit grid through the BIM instruction received in real time by the Internet of Things batching plant; the BIM instruction at least includes the grid coordinates, color gradient, heat value, and construction priority of the construction unit grid;

[0024] Adjust the mixing parameters of the nano-modified polymer cement mortar according to the heat value of the current construction unit grid, and lay the corresponding nano-modified polymer cement mortar on the wall base layer to construct a base strengthening layer.

[0025] In one embodiment, the step of laying the intelligent polymer self-adhesive film coil on the base reinforcement layer to construct the waterproof main layer includes:

[0026] Pre-irradiate the intelligent polymer self-adhesive film coil with an ultraviolet light curing device to activate the temperature-sensitive component;

[0027] Project the unfolding trajectory of the intelligent polymer self-adhesive film coil onto the surface of the base reinforcement layer of the BIM model;

[0028] Adjust the laying movement trajectory of the robotic arm based on the microwave dielectric scanning data of the surface of the base reinforcement layer of the BIM model, and lay the intelligent polymer self-adhesive film coil to construct the waterproof main layer;

[0029] Among them, the lap edge distance of the intelligent polymer self-adhesive film coil is monitored in real time by a laser displacement sensor, and the robotic arm performs automatic deviation correction based on a preset lap edge distance.

[0030] In one embodiment, before the step of laying the intelligent polymer self-adhesive film coil on the base reinforcement layer to construct the waterproof main layer, it further includes:

[0031] Detect the base reinforcement layer through the flexible pressure sensor array embedded in the intelligent polymer self-adhesive film coil, monitor and repair the hollow area on the surface of the base reinforcement layer in real time, and eliminate unqualified areas.

[0032] In one embodiment, the step of applying sealant to the waterproof main layer to form a seal reinforcement layer includes:

[0033] Obtain the three-dimensional coordinates of the lap joint of the waterproof main layer through the BIM model;

[0034] Generate a coating trajectory of low-VOC polyurethane sealant based on the three-dimensional coordinates of the lap joint;

[0035] Execute the coating trajectory of the low-VOC polyurethane sealant through an automatic device, and adopt vacuum-assisted infiltration or microwave pre-curing to strengthen the density to form a seal reinforcement layer.

[0036] In one embodiment, the step of spraying photocatalytic coating on the seal reinforcement layer to form a protective surface layer includes:

[0037] Determine the spraying strategy according to the surface type of the seal reinforcement layer, spray photocatalytic waterproof and breathable coating based on the spraying strategy by an automatic device, and feedback and adjust the moving speed of the spray gun through a laser thickness gauge to form a protective surface layer; among them, the surface type of the seal reinforcement layer includes at least a flat area and a curved area, and the flat area adopts an equidistant reciprocating scanning spraying strategy, and the curved area adopts a profiling spiral trajectory spraying strategy.

[0038] In addition, to achieve the above object, the present application also proposes a composite waterproof wall construction structure, which is characterized in that the composite waterproof wall construction structure sequentially includes from inside to outside:

[0039] Base strengthening layer: It is composed of nano-modified polymer cement mortar material and is used to fill the cracks in the base.

[0040] Main waterproof layer: It is composed of the material of intelligent polymer self-adhesive film coil and is used to adapt to the temperature difference change.

[0041] Sealing and strengthening layer: It is composed of low-VOC polyurethane sealant material and is used to fill the lap joints and complex parts.

[0042] Protective surface layer: It is composed of photocatalytic waterproof and breathable coating material.

[0043] In addition, to achieve the above object, the present application also proposes a composite waterproof wall construction device, which includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, and the computer program is configured to implement the steps of the composite waterproof wall construction method as described above.

[0044] One or more technical solutions proposed by the present application have at least the following technical effects:

[0045] The present application obtains the crack distribution thermal map of the wall base; based on the crack distribution thermal map, nano-modified polymer cement mortar is laid to construct the base strengthening layer; an intelligent polymer self-adhesive film coil is laid on the base strengthening layer to construct the main waterproof layer; sealant is applied to the main waterproof layer to form the sealing and strengthening layer; photocatalytic coating is sprayed on the sealing and strengthening layer to form the protective surface layer; compared with the prior art, the base strengthening layer constructed by the present application has durability, the main waterproof layer has self-adaptability, the application of the sealing and strengthening layer and the spraying of the protective surface layer reflect intelligence, and at the same time can prevent seepage and has both waterproof and breathable functions. Description of the Drawings

[0046] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing the embodiments in line with the present application, and are used together with the specification to explain the principles of the present application.

[0047] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings without creative efforts.

[0048] Figure 1 It is a schematic flow chart provided for Embodiment 1 of the composite waterproof wall construction method of the present application;

[0049] Figure 2 It is a schematic flow chart provided for the second embodiment of the construction method of the composite waterproof wall surface of this application;

[0050] Figure 3 It is a schematic flow chart provided for the third embodiment of the construction method of the composite waterproof wall surface of this application;

[0051] Figure 4 It is a schematic flow chart provided for the fourth embodiment of the construction method of the composite waterproof wall surface of this application;

[0052] Figure 5 It is a schematic flow chart provided for the fifth embodiment of the construction method of the composite waterproof wall surface of this application;

[0053] Figure 6 It is a schematic diagram of the structure of the composite waterproof wall surface of this application;

[0054] Figure 7 It is a schematic diagram of the construction device for the composite waterproof wall surface of this application.

[0055] The realization of the purpose, functional features and advantages of this application will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0056] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of this application and are not used to limit this application.

[0057] To better understand the technical solutions of this application, the following will be described in detail in combination with the drawings of the specification and specific embodiments.

[0058] The main solution of the embodiment of this application is:

[0059] Due to the existing technology in the case of material properties and complex working conditions, it is necessary to develop a new type of composite waterproof structure with durability, self - adaptability and intelligence.

[0060] This application provides a solution, which includes obtaining a thermal map of the crack distribution of the wall surface base layer; laying a nano - modified polymer cement mortar based on the thermal map of the crack distribution to construct a base strengthening layer; laying an intelligent polymer self - adhesive film coil on the base strengthening layer to construct a main waterproof layer; applying a sealant to the main waterproof layer to form a seal strengthening layer; spraying a photocatalytic coating on the seal strengthening layer to form a protective surface layer.

[0061] Based on this, the embodiment of this application provides a construction method for a composite waterproof wall surface, referring to Figure 1 , Figure 1 It is a schematic flow chart of the first embodiment of the construction method of the composite waterproof wall surface of this application.

[0062] In this embodiment, the construction method of the composite waterproof wall surface includes steps S10 to S50:

[0063] Step S10, obtaining a thermal map of the crack distribution on the wall surface base layer;

[0064] It should be noted that the thermal map of the crack distribution is to map the crack detection data into a two-dimensional or three-dimensional model of the building surface through a BIM model, and intuitively reflect the distribution characteristics and risk levels of the cracks through color changes. Compared with the traditional manual detection that takes several days, the generation of the thermal map of the crack distribution only takes a few hours, and the accuracy is increased by more than 50%. The problem areas can be identified at a glance through colors, and intuitive decision-making reduces misjudgment.

[0065] Step S20, laying nano-modified polymer cement mortar based on the thermal map of the crack distribution to construct a base layer reinforcement layer;

[0066] It should be noted that the nano-modified polymer cement mortar includes at least nano-silica, which helps to increase the compressive strength to more than 15 MPa; and the construction of the nano-modified mortar reinforcement layer based on the thermal map of the crack distribution realizes the leap from "homogenization treatment" to "precision repair".

[0067] Step S30, laying an intelligent polymer self-adhesive film coil on the base layer reinforcement layer to construct a main waterproof layer;

[0068] It should be noted that the intelligent polymer self-adhesive film coil contains an integrated temperature-sensitive material, which can adapt to temperature difference changes, solve the problem of winter construction, and ensure the bonding strength; the base material of the intelligent polymer self-adhesive film coil can use renewable materials such as recycled rubber or bio-based polymers, pursuing environmental protection and sustainability.

[0069] Step S40, applying a sealant to the main waterproof layer to form a seal reinforcement layer;

[0070] It should be noted that the sealant includes at least a low-VOC polyurethane sealant, which can fill the lap joints and complex parts, and can improve the colloid filling rate through vacuum-assisted penetration technology to prevent leakage; the emission of VOC during the construction process can be reduced by 30% (meeting the LEED certification), and the measures of the low-carbon process reflect environmental protection and sustainability.

[0071] Step S50, spraying a photocatalytic coating on the seal reinforcement layer to form a protective surface layer.

[0072] It should be noted that the photocatalytic coating uses a TiO2-containing photocatalytic waterproof and breathable coating, which has the functions of waterproofing, air permeability and self-cleaning; based on the four-layer composite structure of the base layer reinforcement layer, the main waterproof layer, the seal reinforcement layer and the protective surface layer, it takes into account waterproofness, durability and environmental protection.

[0073] In this embodiment, a thermal map of the crack distribution of the wall base layer is obtained; a nano-modified polymer cement mortar is laid based on the thermal map of the crack distribution to construct a base layer strengthening layer; an intelligent polymer self-adhesive film coil is laid on the base layer strengthening layer to construct a main waterproof layer; a sealant is applied to the main waterproof layer to form a seal strengthening layer; a photocatalytic coating is sprayed on the seal strengthening layer to form a protective surface layer; the constructed base layer strengthening layer has durability, the main waterproof layer has self-adaptability, the application of the seal strengthening layer and the spraying of the protective surface layer reflect intelligence, and at the same time, seepage can be prevented, and both waterproofing and air permeability are achieved.

[0074] In a feasible implementation manner, before step S10, it includes: using an automated dust cleaning device to remove the floating dust and the residual release agent on the wall base layer, and performing targeted cleaning on the oil stain area through laser ablation technology.

[0075] It should be noted that after removing the surface floating dust with nylon bristles, after carefully cleaning the residual release agent, a filter can be used to collect the dust to avoid secondary pollution; after the dust cleaning device has completed the preliminary cleaning, the oil stain area is detected and the types of oil stains are classified, and the laser cleaning device automatically locates the oil stain area and strips the pollutants in the oil stain area layer by layer according to the preset path; through the precise coordination of the automated dust cleaning and laser ablation technologies, the wall base layer has achieved three breakthroughs in high efficiency, non-damage, and environmental protection.

[0076] Further, referring to Figure 2 , the second embodiment of the composite waterproof wall construction method of this application provides a process schematic diagram. Based on the above Figure 2 shown example diagram, the step of "obtaining the thermal map of the crack distribution of the wall base layer" in step S10 is further refined, including steps A201 to A204:

[0077] Step A201, scanning the wall base layer with a three-dimensional laser;

[0078] It should be noted that the scanning sites are set by using the multi-site scanning method, spherical targets are arranged to achieve automatic alignment of multi-view point clouds, and synchronous image collection is performed through a high-definition pixel panoramic camera to achieve millimeter-level precision scanning.

[0079] Step A202, generating a base layer BIM model through point cloud processing software, and marking the crack information according to the base layer BIM model, where the crack information at least includes the crack position, length, width, and depth;

[0080] It should be noted that after preprocessing the point cloud through point cloud processing software, the point cloud data is imported to construct a parametric wall base layer BIM model, and the crack information is extracted and marked; for the crack information, 10% of the area can be randomly selected for ground truth comparison, and the parameter error is verified manually.

[0081] Step A203: Calculate the risk value based on the crack information and divide the risk levels.

[0082] It should be noted that, based on the multi-factor weighting formula of the crack information, by selecting different weight coefficients, the risk value is calculated and the risk levels are divided. Different disposal strategies are adopted for different risk levels.

[0083] Specifically, assume that the multi-factor weighting formula of the crack information is R = αW + βD + γL + δρ, where the weight coefficients are α = 0.4, β = 0.3, γ = 0.2, δ = 0.1. The variable W is the crack width (mm), and its threshold is 3 mm. D is the depth ratio (crack depth / base course thickness, %), L is the crack length (m), and ρ is the crack density per unit area (number of cracks / ㎡). Calculate the risk value R: When the R value ranges from 0 to 30, it is classified as low risk, and the disposal strategy of monitoring and observation, and routine maintenance is adopted; when the R value ranges from 30 to 70, it is classified as medium risk, and the disposal strategy of local reinforcement and priority repair is adopted; when the R value is greater than 70, it is classified as high risk, and the disposal strategy of emergency repair and structural safety assessment is adopted.

[0084] Step A204: Map the risk levels to color gradients through the base course BIM model, and generate a crack distribution heat map covering the surface of the base course BIM model.

[0085] It should be noted that the wall base course is divided into 10 cm × 10 cm grid units, and the weighted average value of the crack risk value in each unit is calculated to divide the risk levels. The low risk is mapped to blue, the medium risk is mapped to yellow, and the high risk is mapped to red; through the API development plug-in, the heat map data is written into the BIM model parameters. When a grid unit is selected, an information box pops up to display the crack details, such as location, parameters, risk value, etc., and the high-risk area is refreshed in real time for warning; in addition, the layer transparency can be set according to the risk level to avoid model occlusion.

[0086] Further, referring to Figure 3 This application's third embodiment of the composite waterproof wall construction method provides a flow schematic diagram. Based on the above Figure 3 shown example diagram, the step of "laying nano-modified polymer cement mortar based on the crack distribution heat map to construct the base course strengthening layer" in step S20 is further refined, including steps A301 to A304:

[0087] Step A301: Convert the crack distribution heat map into a construction unit grid.

[0088] It should be noted that the size of the construction unit grid is set based on the construction equipment to ensure that a single construction covers a complete unit.

[0089] Step A302, arrange the construction sequence of the construction unit grids based on the color gradient of the construction unit grids;

[0090] It should be noted that the RGB color gradient of the crack distribution heat map is mapped to the risk level. For example, red corresponds to high risk, yellow is mapped to medium risk, and blue is mapped to low risk; extract the RGB values of each pixel in the crack distribution heat map, convert them to heat values (0-100) according to the color coding rule, calculate the average heat value of the construction unit grid, and arrange them from high to low according to the average heat value of the construction unit grid to generate a construction queue; if the average heat values of the construction unit grids are the same, they are arranged in descending order according to the maximum crack width within the grid. At the same time, continuous high-risk grids can be merged into super grids to improve construction efficiency.

[0091] Specifically, obtain the wall heat map data to get the construction unit grids of different colors. The IDs of the construction unit grids are arranged based on the descending order of red, yellow, and blue. When there are multiple colors in a construction unit grid, extract the RGB values of each pixel in the construction unit grid, calculate the average heat value of the construction unit grid, and insert the construction unit grid with multiple colors into the arrangement order of the pure-color construction unit grids based on the average heat value; in addition, when the average heat value of a construction unit grid is 50, its grid ID is G-05-12, and the average heat values of its adjacent grids G-05-11 and G-06-12 are both 50, then these three construction unit grids are merged into a super grid SG-05-12, and the robotic arm path is optimized, thereby reducing the path length, shortening the construction time, and improving the processing speed.

[0092] Step A303, obtain the heat value of the current construction unit grid through the BIM instruction received in real time by the Internet of Things batching plant; the BIM instruction at least includes the grid coordinates, color gradient, heat value, and construction priority of the construction unit grid;

[0093] It should be noted that the BIM model pushes the data of the current construction unit grid to the control terminal of the batching plant through the API. The industrial control computer built into the batching plant parses the instruction to achieve full-cycle quality control based on the Internet of Things and BIM technologies.

[0094] Step A304, adjust the mixing parameters of the nano-modified polymer cement mortar according to the heat value of the current construction unit grid, and lay the corresponding nano-modified polymer cement mortar on the wall base layer to construct a base layer strengthening layer.

[0095] Specifically, it is assumed that when the thermal value is 0 to 30, the dosage of nano-SiO2 is adjusted to 8% to 10%, and the obtained fiber type is polypropylene fiber for preventing microcracks; when the thermal value is 30 to 70, the dosage of nano-SiO2 is adjusted to 12% to 15%, and the obtained fiber type is basalt fiber for resisting flexural tension; when the thermal value is greater than 70, the dosage of nano-SiO2 is adjusted to 15% + silane coupling agent, and the obtained fiber type is steel fiber for resisting shear and enhancing penetration.

[0096] Further, referring to Figure 4 , the fourth embodiment of the composite waterproof wall construction method of the present application provides a process schematic diagram. Based on the above Figure 4 shown example diagram, the step of "laying the intelligent polymer self-adhesive film coil on the base reinforcement layer to construct the waterproof main layer" in step S30 is further refined, including steps A401 to A403:

[0097] Step A401, pre-irradiate the intelligent polymer self-adhesive film coil through an ultraviolet light curing device to activate the thermosensitive component;

[0098] It should be noted that the bonding strength of the coil changes with temperature. After pre-irradiation, the thixotropy of the coil is improved.

[0099] Step A402, project the unfolding trajectory of the intelligent polymer self-adhesive film coil onto the surface of the base reinforcement layer of the BIM model;

[0100] Step A403, adjust the paving movement trajectory of the robotic arm based on the microwave dielectric scanning data of the surface of the base reinforcement layer of the BIM model, and lay the intelligent polymer self-adhesive film coil to construct the waterproof main layer; wherein, the overlap edge distance of the intelligent polymer self-adhesive film coil is monitored in real time by a laser displacement sensor, and the robotic arm performs automatic deviation correction based on the preset overlap edge distance.

[0101] It should be noted that a microwave dielectric scanner is used to detect the density of the reinforcement layer and generate a dielectric constant distribution map. For the high-risk area marked in red, the robotic arm is triggered to decelerate; for different dielectric constants, the robotic arm adopts different response strategies; the edge distance of the coil is measured in real time by a laser displacement sensor, the actual overlap width is calculated, and the deviation range is obtained based on the preset overlap edge distance and the actual overlap width. The robotic arm adopts the corresponding deviation correction logic according to the deviation range to lay the intelligent polymer self-adhesive film coil to construct the waterproof main layer, which reflects the full-link intelligence of the materials, construction and detection of the waterproof main layer; at the material level, the film integrated with thermosensitive materials can break through the temperature limit, such as adapting to -30°C to 60°C to expand the construction window period and ensure the bonding strength.

[0102] Specifically, in an underground utility tunnel project in a coastal city, it is necessary to lay a waterproof main layer in a low-temperature and humid environment (temperature -10°C to 40°C, humidity > 90%). The bonding strength of traditional coiled materials drops sharply at low temperatures, and air pockets are likely to occur on complex base surfaces. In this embodiment, through ultraviolet-activated thermosensitive adhesive film, BIM projection paving, and dynamic deviation correction technologies, all-weather adaptable construction is achieved. Among them, a servo motor can be used to drive the coiled material to pass through the ultraviolet light source irradiation area at a constant speed to pre-activate the thermosensitive adhesive film. The thermosensitive response range is dynamically adjusted within -30 to 60°C, reducing the viscosity of the adhesive film from 5000 cP (unactivated) to 800 cP (after activation), and exhausting and densifying. After the pre-activation is completed, a low-temperature bonding test can be carried out. After the verification test passes, the BIM model is input into the three-dimensional scanning model of the base layer reinforcement layer (accuracy ±0.5 mm), surface normal vector data is extracted, and the unfolding trajectory of the coiled material is generated. For the plane area: a straight path, with a spacing of 400 mm; for the curved surface area: a geodesic spiral path (pitch 50 mm when the radius of curvature > 1 m, pitch 30 mm when < 1 m). The trajectory is projected onto the surface of the base layer for error calibration, such as using AR projection positioning. Then, microwave dielectric scanning is carried out, and the risk level is judged according to the node constant, and different robotic arm response strategies are adopted. At the same time, a double laser displacement sensor is used to monitor the lap margin in real time. For example, in the high-risk area (grid ID: G-05-12, dielectric constant ε = 5.8): the speed of the robotic arm is 0.3 m / min, and the grouting pressure is 0.8 MPa (epoxy resin, viscosity 150 cP);

[0103] The lap width is 85 mm (target value 80 mm, actual value 83 mm → deviation correction +2 steps); in the low-risk area (grid ID: G-03-15, dielectric constant ε = 7.7): the speed of the robotic arm is 1.2 m / min, without grouting; the lap width is 79 mm (target value 80 mm, actual value 79 mm → deviation correction +1 step). In addition, air pockets (pressure < 5 kPa) are detected through a piezoresistive sensor array, and for the air pocket areas, unmanned aerial vehicle grouting repair is adopted. This solution can construct in all weather conditions, accurately and efficiently, making the paving effect significantly higher than that of manual work, and greatly reducing the leakage risk.

[0104] In a feasible implementation manner, before the step S30 of "constructing a waterproof main layer by paving an intelligent polymer self-adhesive film coiled material based on the base layer reinforcement layer", it further includes:

[0105] Detecting the base layer reinforcement layer through a flexible piezoresistive sensor array embedded in the intelligent polymer self-adhesive film coiled material, real-time monitoring and repairing the air pocket areas on the surface of the base layer reinforcement layer, and eliminating unqualified areas.

[0106] It should be noted that the sensor is embedded in the back layer of the intelligent polymer self-adhesive film coil through a hot pressing process to ensure that the waterproof performance of the coil is not affected; feature extraction is performed based on the data collected by the sensor to determine the hollow area and the dense area; when the pressure distribution entropy value is greater than 3.5, it is determined as the hollow area, and when the pressure distribution entropy value is less than 2.0, it is determined as the dense area; the hollow thermal map is displayed in real time through the BIM model platform. If the red mapping indicates that the probability of hollowing is greater than 90%, immediate repair is required; if the yellow mapping indicates that the probability of hollowing is between 50% and 90%, manual review is required; if the green mapping indicates that the probability of hollowing is less than 50%, it belongs to the qualified area; the repair of the hollow area can be achieved through a micro high-pressure grouting pump for minimally invasive grouting repair.

[0107] Furthermore, referring to Figure 5 , the fifth embodiment of the composite waterproof wall construction method of the present application provides a process schematic diagram. Based on the Figure 5 shown example diagram, the step of "applying sealant to the waterproof main layer to form a seal strengthening layer" in step S40 is further refined, including steps A501 to A503:

[0108] Step A501, obtaining the three-dimensional coordinates of the lap joint of the waterproof main layer through the BIM model;

[0109] It should be noted that for the BIM model, an API development plug-in is used to read the geometric data of the tower joint in the waterproof main layer file, and the following parameters are extracted, such as the center line coordinates, joint width, joint depth, etc.; the coordinate data is converted into G code that can be recognized by the robotic arm, and metadata is added to each tower joint in the BIM model.

[0110] Step A502, generating a low-VOC polyurethane sealant application trajectory based on the three-dimensional coordinates of the lap joint;

[0111] It should be noted that based on the trajectory planning algorithm and the three-dimensional coordinates of the lap joint, the amplitude is calculated at a preset frequency to generate a Z-shaped route. For the processing of complex nodes, a space spiral filling algorithm and cross joints can be used. The cross joints are sorted in the priority order from the main joint to the secondary joint to avoid colloid accumulation.

[0112] Step A503, executing the low-VOC polyurethane sealant application trajectory through an automatic device, and adopting vacuum-assisted penetration or microwave pre-curing to strengthen the density and shorten the sealing time to form a seal strengthening layer.

[0113] It should be noted that in vacuum-assisted penetration, the vacuum chamber is integrated with the end tool of the robotic arm, and a multi-stage vacuum pump is provided; the equipment parameters of the microwave pre-curing technology at least include a microwave generator and a customized waveguide array. The gluing speed of the robotic arm is much faster than that of manual work, which can effectively shorten the construction period of some engineering projects, and strengthen the quality by constructing a seal strengthening layer to improve the anti-risk ability against extreme scenarios.

[0114] In a feasible implementation, the step S50 of "spraying a photocatalytic coating on the sealing reinforcement layer to form a protective surface layer" includes:

[0115] Determine the spraying strategy according to the surface type of the sealing reinforcement layer, spray a photocatalytic waterproof and breathable coating based on the spraying strategy by using automatic equipment, and form a protective surface layer by feedback adjustment of the moving speed of the spray gun through a laser thickness gauge; wherein, the surface type of the sealing reinforcement layer at least includes a flat area and a curved area, the flat area adopts an equidistant reciprocating scanning spraying strategy, and the curved area adopts a profiling spiral trajectory spraying strategy.

[0116] It should be noted that the spraying strategy of the profiling spiral trajectory for the curved area can perfectly fit the curve, effectively improving the construction qualification rate; the method of feedback adjustment by using a laser thickness gauge can accurately control the film thickness uniformity and reduce material waste; the precise construction of the protective surface layer is realized through intelligent recognition, dynamic programming and closed-loop control.

[0117] It should be noted that the application scenarios of the composite waterproof wall structure of the present application at least include building walls in conventional scenarios such as residential buildings and commercial buildings; high-temperature and high-pressure environments in underground projects such as basements, subway tunnels and utility tunnels; scenarios with large temperature differences and frequent vibrations in transportation infrastructure such as bridge piers, culverts and wharves; scenarios with chemical corrosion resistance requirements in industrial and energy facilities such as chemical plants and oil storage tank enclosures; scenarios with high requirements for environmental protection and air permeability in green and historical buildings such as prefabricated buildings and ancient building restorations; solving the cross-field application limitations of the insufficient high-water-pressure resistance of traditional single waterproof layers in underground engineering scenarios and the poor chemical corrosion resistance of ordinary materials in industrial facilities.

[0118] Specifically, the application scenario of the composite waterproof wall structure of the present application is a utility tunnel, the test condition is a water pressure of 0.5 MPa for 72 hours, and the test result based on the standard of GB 50108 is no leakage; when the application scenario is a bridge pier, the test condition is 100 freeze-thaw cycles at -30°C to 60°C, and the test result under the ASTM C666 standard is no displacement of the lap joint; when the application scenario is a chemical plant, the test condition is an acidic environment with pH = 2 for 6 months, and the test result under the ISO 2812 standard is no corrosion and peeling of the waterproof layer; when the application scenario is a prefabricated building, the simulation condition is a 10-level wind simulation, and the test result under the EN 13373 standard is no cracking of the protective surface layer; the composite waterproof wall structure of the present application can cross-field adapt to the requirements of various scenarios through material and process optimization.

[0119] It should be noted that the above examples are only for understanding the present application and do not constitute a limitation on the construction method of the composite waterproof wall surface of the present application. Based on this technical concept, more forms of simple transformations are within the protection scope of the present application.

[0120] As Figure 6 shown, the present application also provides a composite waterproof wall surface structure, characterized in that the composite waterproof wall surface construction structure includes, from inside to outside in sequence:

[0121] Base strengthening layer: composed of nano-modified polymer cement mortar material, used to fill the cracks in the base;

[0122] Main waterproof layer: composed of intelligent polymer self-adhesive film coil material, used to adapt to temperature difference changes;

[0123] Sealing and strengthening layer: composed of low-VOC polyurethane sealant material, used to fill the lap joints and complex parts;

[0124] Protective surface layer: composed of photocatalytic waterproof and breathable coating material.

[0125] As Figure 7 shown, the present application also provides a composite waterproof wall surface construction device, and the composite waterproof wall surface construction device includes:

[0126] Crack heat map generation module 10, used to obtain the crack distribution heat map of the wall base;

[0127] Base strengthening layer laying module 20, used to lay nano-modified polymer cement mortar based on the crack distribution heat map to construct the base strengthening layer;

[0128] Main waterproof layer paving module 30, used to pave the intelligent polymer self-adhesive film coil on the base strengthening layer to construct the main waterproof layer;

[0129] Sealing and strengthening layer coating module 40, used to coat the main waterproof layer with sealant to form the sealing and strengthening layer;

[0130] Protective surface layer spraying module 50, used to spray photocatalytic coating on the sealing and strengthening layer to form the protective surface layer.

[0131] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative position relationship and movement conditions between components in a certain specific posture. If this specific posture changes, then the directional indications will also change accordingly.

[0132] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or is impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0133] The above are only some embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the specification and drawings of the present application under the technical concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A construction method for a composite waterproof wall surface, characterized in that, The method includes: Obtaining a thermal map of the crack distribution of the wall base layer; Laying nano-modified polymer cement mortar based on the thermal map of the crack distribution to construct a base strengthening layer; Laying an intelligent polymer self-adhesive film coil on the base strengthening layer to construct a main waterproof layer; Applying sealant to the main waterproof layer to form a seal strengthening layer; Spraying photocatalytic coating on the seal strengthening layer to form a protective surface layer.

2. The composite waterproof wall construction method according to claim 1, characterized in that, Before the step of obtaining the thermal map of the crack distribution of the wall base layer, it includes: Using an automated ash removal device to remove the floating ash and release agent residue on the wall base layer, and performing targeted cleaning on the oil stain area through laser ablation technology.

3. The construction method of the composite waterproof wall surface according to claim 2, characterized in that, The step of obtaining the thermal map of the crack distribution of the wall base layer includes: Scanning the wall base layer with a three-dimensional laser; Generating a base BIM model through point cloud processing software, and marking crack information according to the base BIM model, where the crack information at least includes crack position, length, width, and depth; Calculating a risk value based on the crack information and dividing the risk level; Mapping the risk level to a color gradient through the base BIM model, and generating a thermal map of the crack distribution covering the surface of the base BIM model based on the color gradient.

4. The composite waterproof wall construction method according to claim 3, characterized in that, The step of laying nano-modified polymer cement mortar based on the thermal map of the crack distribution to construct a base strengthening layer includes: Converting the thermal map of the crack distribution into a construction unit grid; Arranging the construction sequence of the construction unit grid based on the color gradient of the construction unit grid; Obtaining the thermal value of the current construction unit grid through the BIM instruction received in real time by the Internet of Things batching plant; the BIM instruction at least includes the grid coordinates, color gradient, thermal value, and construction priority of the construction unit grid; Adjusting the mixing parameters of the nano-modified polymer cement mortar according to the thermal value of the current construction unit grid, and laying the corresponding nano-modified polymer cement mortar on the wall base layer to construct a base strengthening layer.

5. The construction method of the composite waterproof wall surface according to claim 4, characterized in that The step of laying an intelligent polymer self-adhesive film coil on the base strengthening layer to construct a main waterproof layer includes: Pre-irradiating the intelligent polymer self-adhesive film coil through an ultraviolet light curing device to activate the temperature-sensitive component; Projecting the unfolding trajectory of the intelligent polymer self-adhesive film coil onto the surface of the base strengthening layer of the BIM model; Adjusting the laying movement trajectory of the robotic arm based on the microwave dielectric scanning data on the surface of the base strengthening layer of the BIM model, and laying the intelligent polymer self-adhesive film coil to construct a main waterproof layer; wherein, the lap edge distance of the intelligent polymer self-adhesive film coil is monitored in real time through a laser displacement sensor, and the robotic arm performs automatic deviation correction based on the preset lap edge distance.

6. The construction method of the composite waterproof wall surface according to claim 5, characterized in that, Before the step of laying an intelligent polymer self-adhesive film coil on the base strengthening layer to construct a main waterproof layer, it also includes: Detecting the base strengthening layer through the flexible pressure sensor array embedded in the intelligent polymer self-adhesive film coil, monitoring and repairing the hollow area on the surface of the base strengthening layer in real time, and eliminating unqualified areas.

7. The composite waterproof wall construction method according to claim 6, characterized in that, The step of applying sealant to the main waterproof layer to form a seal strengthening layer includes: Obtaining the three-dimensional coordinates of the lap joint of the main waterproof layer through the BIM model; Generate the application trajectory of the low-VOC polyurethane sealant based on the three-dimensional coordinates of the lapped joint; Execute the application trajectory of the low-VOC polyurethane sealant through an automatic device, and adopt the vacuum-assisted penetration or microwave pre-curing method to enhance the density to form a seal strengthening layer.

8. The construction method of the composite waterproof wall surface according to claim 7, characterized in that, The step of spraying the photocatalytic coating on the seal strengthening layer to form a protective surface layer includes: Determine the spraying strategy according to the surface type of the seal strengthening layer, spray the photocatalytic waterproof and breathable coating based on the spraying strategy by an automatic device, and feedback and adjust the moving speed of the spray gun through a laser thickness gauge to form a protective surface layer; wherein, the surface type of the seal strengthening layer at least includes a flat area and a curved area, the flat area adopts an equidistant reciprocating scanning spraying strategy, and the curved area adopts a profiling spiral trajectory spraying strategy.

9. A composite waterproof wall structure prepared by the method according to claim 1, characterized in that, The composite waterproof wall construction structure sequentially includes from inside to outside: Base strengthening layer: composed of a nano-modified polymer cement mortar material, used to fill the cracks in the base; Main waterproof layer: composed of the material of an intelligent polymer self-adhesive film coil, used to adapt to temperature difference changes; Seal strengthening layer: composed of a low-VOC polyurethane sealant material, used to fill the lapped joint and complex parts; Protective surface layer: composed of a photocatalytic waterproof and breathable coating material.

10. A composite waterproof wall construction device, characterized in that, The composite waterproof wall construction device includes: Crack heat map generation module, used to obtain the crack distribution heat map of the wall base; Base strengthening layer laying module, used to lay the nano-modified polymer cement mortar based on the crack distribution heat map to construct the base strengthening layer; Main waterproof layer paving module, used to pave the intelligent polymer self-adhesive film coil on the base strengthening layer to construct the main waterproof layer; Seal strengthening layer coating module, used to apply sealant to the main waterproof layer to form a seal strengthening layer; Protective surface layer spraying module, used to spray photocatalytic coating on the seal strengthening layer to form a protective surface layer.

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