Fabricated wall mounting method based on heat insulation

Abstract

The invention relates to the technical field of building construction, in particular to a heat-insulation-based fabricated wall installation method which comprises the steps that glue is distributed on the wall face of a first fabricated heat-insulation wall, the first fabricated heat-insulation wall is pushed, pressed and pasted to an installation base face, and a temporary support is installed at the bottom of the first fabricated heat-insulation wall; after the adhesive is cured, a corresponding sound wave attenuation curve is obtained, the characteristic attenuation duration is extracted, and the detection rate of the empty bulge points is obtained; determining an installation adjustment strategy according to the center depth of the maximum hollowing area when the hollowing point detection rate is judged to be substandard; installing an anchoring part, and dismantling the temporary support when the anchoring is judged to meet the preset standard according to the maximum strain value; and according to the designed installation sequence, the subsequent assembly type heat insulation wall body is installed. The wall mounting efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method for installing prefabricated walls based on thermal insulation. Background Technology

[0002] Prefabricated thermal insulation walls, as the core component of modern building energy conservation, are prefabricated composite materials composed of thermal insulation core materials (such as polyurethane foam and vacuum insulation panels) and surface layers (fiber cement boards and metal decorative panels). They have advantages such as low thermal conductivity, factory production, and rapid on-site installation.

[0003] In prefabricated wall installation, hollowing has become a key defect affecting wall performance. Hollowing refers to the local hollowing or separation of the wall surface material (such as tiles, paint, decorative panels, etc.) and the base structure (such as precast concrete walls, keel frames, etc.) due to poor adhesion. However, the traditional detection method, namely the manual tapping method, relies on the experience of workers and has a high rate of missed detection.

[0004] Chinese patent application publication number CN114960999A discloses a construction method for exterior wall insulation boards. The method includes: creating mounting holes on one surface of the insulation board for installing fasteners; splicing and pasting different insulation boards with holes onto the wall; drilling holes in the wall along the direction of the holes, with the fasteners simultaneously passing through the holes in both the mounting and wall sections, and covering the openings of the mounting holes with insulation board covers; and applying a finishing coat to the insulation board.

[0005] It can be seen that the above technical solution relies solely on mechanical anchoring of fasteners, without considering the impact of parameters related to hollow areas after wall adhesion on the installation effect, and without considering the impact of the mechanical properties after anchoring on wall peeling, thus resulting in low wall installation efficiency. Summary of the Invention

[0006] To address this, the present invention provides a prefabricated wall installation method based on thermal insulation, which overcomes the problems of low wall installation efficiency caused by relying solely on mechanical anchoring of fasteners without considering the impact of parameters related to hollowness after wall bonding on the installation effect, and without considering the impact of mechanical properties after anchoring on wall peeling.

[0007] To achieve the above objectives, the present invention provides a prefabricated wall installation method based on thermal insulation, comprising:

[0008] Apply an adhesive of a first preset thickness to the wall surface of the first prefabricated thermal insulation wall, press and stick the first prefabricated thermal insulation wall onto the installation base surface, and install a temporary bracket at the bottom of the first prefabricated thermal insulation wall.

[0009] After the adhesive has cured for a preset curing time, several detection points of the first prefabricated thermal insulation wall are tapped to obtain the corresponding sound wave attenuation curves, and the characteristic attenuation time is extracted to obtain the hollow point detection rate. The characteristic attenuation time is the time required for the sound wave energy generated by tapping each detection point to attenuate to a preset energy based on the energy of the first peak of the sound wave.

[0010] When the detection rate of hollow points of the first prefabricated thermal insulation wall determines that the bonding of the first prefabricated thermal insulation wall meets the preset standard, the area of ​​the largest hollow area is used to make a second determination on whether the bonding of the first prefabricated thermal insulation wall meets the preset standard.

[0011] When the detection rate of hollow points determines that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, the installation adjustment strategy for the first prefabricated thermal insulation wall does not meet the preset standard is determined based on the center depth of the largest hollow area.

[0012] Install the anchors of the first prefabricated thermal insulation wall that meet the preset standards according to the design drawings. Attach strain gauges to the joint between the anchors and the wall, obtain the strain force of the strain gauges, and calculate the maximum strain value. If the anchoring of the first prefabricated thermal insulation wall meets the preset standards based on the maximum strain value, remove the temporary support.

[0013] Install the subsequent prefabricated insulated walls according to the design installation sequence, and seal the gaps between adjacent prefabricated insulated walls with sealant.

[0014] Furthermore, the detection rate of hollow spots in the first prefabricated thermal insulation wall is used to determine whether the bonding of the first prefabricated thermal insulation wall meets the preset standards, wherein...

[0015] If the detection rate of hollow spots is less than the first preset detection rate of hollow spots, it is determined that the bonding of the first prefabricated thermal insulation wall meets the preset standard.

[0016] If the detection rate of hollow points is greater than or equal to the first preset hollow point detection rate and less than the second preset hollow point detection rate, it is determined that the bonding of the first prefabricated thermal insulation wall meets the preset standard, and the bonding of the first prefabricated thermal insulation wall meets the preset standard again based on the maximum hollow area of ​​the first prefabricated thermal insulation wall.

[0017] If the detection rate of hollow points is greater than or equal to the second preset hollow point detection rate, it is determined that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, and the installation adjustment strategy when the bonding of the first prefabricated thermal insulation wall does not meet the preset standard is determined according to the center depth of the maximum hollow area of ​​the first prefabricated thermal insulation wall.

[0018] Furthermore, the hollow point detection rate is the ratio of the number of detection points whose characteristic decay time is greater than the preset decay time to the total number of detection points, wherein the detection points whose characteristic decay time is greater than the preset decay time are recorded as hollow points.

[0019] Furthermore, based on the area of ​​the largest hollow area, a second determination is made as to whether the adhesion of the first prefabricated thermal insulation wall meets the preset standard, wherein...

[0020] If the maximum hollow area is less than the preset hollow area, then the bonding of the first prefabricated thermal insulation wall is determined to meet the preset standard.

[0021] If the area of ​​the maximum hollow area is greater than or equal to the area of ​​the preset hollow area, it is determined that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, and the first preset thickness of the adhesive is increased according to the difference between the area of ​​the maximum hollow area and the area of ​​the preset hollow area.

[0022] The area of ​​the hollow region was obtained using an infrared thermal imager.

[0023] Furthermore, several thickness increase methods are provided for increasing the first preset thickness of the adhesive application, and each thickness increase method increases the first preset thickness by a different amount.

[0024] Furthermore, based on the center depth of the largest hollow area, an installation adjustment strategy is determined when the adhesion of the first prefabricated thermal insulation wall does not meet the preset standards.

[0025] If the center depth is less than the preset depth, the pushing force during the installation of the thermal insulation wall will be increased according to the difference between the preset depth and the center depth.

[0026] If the center depth is greater than or equal to the preset depth, the drilling depth of the expansion bolt is increased according to the ratio of the center depth to the preset depth; the center depth of the maximum hollow area is obtained by an ultrasonic detector.

[0027] Furthermore, the increase in the drilling depth of the expansion bolt is positively correlated with the depth ratio, wherein the depth ratio is the ratio of the center depth to the preset depth.

[0028] Furthermore, based on the fact that the maximum strain value of the first prefabricated thermal insulation wall is greater than or equal to the first preset strain value, it is determined that the anchoring of the first prefabricated thermal insulation wall does not meet the preset standard.

[0029] Furthermore, when the maximum strain value of the first prefabricated thermal insulation wall is greater than or equal to the first preset strain value and less than the second preset strain value, the torque of the anchor is increased according to the difference between the maximum strain value and the first preset strain value; and when the maximum strain value of the first prefabricated thermal insulation wall is greater than or equal to the second preset strain value, the anchor is replaced.

[0030] The second preset strain value is greater than the first preset strain value.

[0031] Furthermore, the process of obtaining the maximum strain value of the first prefabricated thermal insulation wall includes:

[0032] Strain gauges are attached to the joint between the anchor and the wall;

[0033] A preset load parallel to the first prefabricated thermal insulation wall is applied to the surface of the first prefabricated thermal insulation wall at a preset distance from the anchor point;

[0034] Record the strain force of each strain gauge to obtain the maximum strain value.

[0035] Compared with existing technologies, the advantages of this invention are as follows: This invention improves detection accuracy by accurately detecting the location and area of ​​hollow areas through quantified sound wave attenuation characteristics and infrared thermal imaging technology; it detects the wall adhesion effect based on the detection rate of hollow points and verifies it in conjunction with the maximum area of ​​the hollow area; and when the standard is not met, it dynamically optimizes the wall installation parameters based on the center depth of the maximum hollow area. For shallow hollow areas, it increases the pushing force to eliminate incomplete adhesive filling; for deep hollow areas, it increases the drilling depth of expansion bolts according to the depth ratio to ensure that the anchoring end penetrates into a solid installation base, achieving precise repair. Simultaneously, it ensures anchoring reliability through strain monitoring, and precisely adjusts the torque or replaces anchors based on strain thresholds to improve anchoring performance, thereby improving the efficiency of wall installation.

[0036] Furthermore, when the detection rate of hollow spots is lower than the first preset threshold, the present invention directly determines that the bonding is qualified, avoiding over-testing and shortening the acceptance process; when the detection rate of hollow spots is between the first and second thresholds, a secondary determination is introduced based on the area of ​​the largest hollow spot, reducing false judgments and increasing the rigor of the test; when the detection rate of hollow spots is too high, it is clearly determined that the standard is not met, and a targeted installation adjustment strategy is formulated based on the center depth of the largest hollow spot area, thereby improving the installation reliability of the prefabricated thermal insulation wall.

[0037] Furthermore, the present invention uses the area of ​​the preset hollow area as the criterion to ensure that the maximum hollow area does not exceed the standard; the adhesive coating thickness is increased according to the area difference gradient to enhance the bonding density and solve the problem of insufficient bonding force caused by the adhesive layer being too thin, thereby improving the bonding reliability between the wall and the installation base.

[0038] Furthermore, the present invention dynamically adjusts the increase of the first preset thickness of the adhesive application based on the difference between the maximum hollow area and the preset hollow area, thereby achieving precise control of the increase of the first preset thickness of the adhesive application.

[0039] Furthermore, this invention sets a strain threshold as the anchorage judgment benchmark, objectively quantifies the anchorage effect, intelligently identifies anchorage points with substandard mechanical properties, attaches strain gauges at the junction of the anchor and the wall to accurately capture stress concentration points, applies a load parallel to the wall surface to reflect the anchorage bearing capacity, ensures the reliability of the evaluation indicators, and makes timely corrections when the judgment is substandard, thereby improving the durability of prefabricated walls. Attached Figure Description

[0040] Figure 1 This is a flowchart of a prefabricated wall installation method based on thermal insulation, according to an embodiment of the present invention.

[0041] Figure 2 This is a flowchart illustrating how the bonding of the first prefabricated thermal insulation wall conforms to a preset standard based on the detection rate of hollow spots, as described in an embodiment of the present invention.

[0042] Figure 3 This is a flowchart illustrating the installation adjustment strategy for determining when the bonding of the first prefabricated thermal insulation wall does not meet the preset standards, as described in this embodiment of the invention.

[0043] Figure 4 This is a flowchart illustrating how to determine if the anchorage of the first prefabricated thermal insulation wall does not meet a preset standard, as per an embodiment of the present invention. Detailed Implementation

[0044] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0045] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0046] It should be noted that the data in this embodiment are all derived from a comprehensive analysis and evaluation of historical test data and corresponding historical test results from the three months prior to this test. Those skilled in the art will understand that the method described in this invention can determine the above-mentioned parameters in the following ways: selecting the value with the highest proportion based on the data distribution as the preset standard parameter; using weighted summation to obtain the value as the preset standard parameter; substituting each historical data point into a specific formula and using the value obtained by that formula as the preset standard parameter; or other selection methods, as long as the method described in this invention can clearly define different specific situations in the single-item judgment process through the obtained values.

[0047] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The flowcharts shown are respectively: a flowchart of the prefabricated wall installation method based on thermal insulation according to an embodiment of the present invention; a flowchart of determining whether the bonding of the first prefabricated thermal insulation wall meets the preset standard based on the detection rate of hollow points according to an embodiment of the present invention; a flowchart of the installation adjustment strategy when the bonding of the first prefabricated thermal insulation wall does not meet the preset standard according to an embodiment of the present invention; and a flowchart of determining that the anchoring of the first prefabricated thermal insulation wall does not meet the preset standard according to an embodiment of the present invention.

[0048] This invention provides a method for installing prefabricated walls based on thermal insulation, comprising:

[0049] Step S1: Apply adhesive of a first preset thickness to the wall surface of the first prefabricated thermal insulation wall, press and stick the first prefabricated thermal insulation wall onto the installation base surface, and install a temporary bracket at the bottom of the first prefabricated thermal insulation wall.

[0050] Step S2: After the polymer cement mortar has cured for a preset curing time of 3 hours, use a rubber hammer to tap several test points of the first prefabricated thermal insulation wall, and use a sound sensor and analysis software LabVIEW Sound and Vibration to obtain the sound wave attenuation curve corresponding to each test point, extract the characteristic attenuation time, and calculate the hollow point detection rate. The characteristic attenuation time is the time required for the sound wave energy generated by tapping each test point to attenuate to a preset energy based on the energy of the first peak of the sound wave.

[0051] Step S3: When the detection rate of hollow points of the first prefabricated thermal insulation wall determines that the bonding of the first prefabricated thermal insulation wall meets the preset standard, a second determination is made based on the area of ​​the largest hollow area to determine whether the bonding of the first prefabricated thermal insulation wall meets the preset standard.

[0052] Step S4: When the detection rate of hollow points determines that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, the installation adjustment strategy for the bonding of the first prefabricated thermal insulation wall does not meet the preset standard is determined based on the center depth of the largest hollow area.

[0053] Step S5: Install the anchors of the first prefabricated thermal insulation wall that meet the preset standards according to the design drawings. Attach strain gauges to the joint between the anchors and the wall, obtain the strain force of the strain gauges, calculate the maximum strain value, and remove the temporary support when the anchoring of the first prefabricated thermal insulation wall meets the preset standards based on the maximum strain value.

[0054] Step S6: Install the subsequent prefabricated thermal insulation walls according to the design installation sequence, and seal the gaps between adjacent prefabricated thermal insulation walls with polyurethane sealant.

[0055] It should be noted that the data in this embodiment are all results obtained through preliminary experiments prior to this test. Each preset value can be adjusted according to specific usage, as long as the obtained values ​​clearly define different specific situations in the single-item judgment process. The preset values ​​set in this embodiment are all obtained from preliminary experiments, including the correction coefficients, which were also selected through experimental verification.

[0056] Specifically, the range of the striking force of the rubber hammer on the first prefabricated thermal insulation wall is (20N, 50N), and in this embodiment, the striking force is selected as 30N.

[0057] Specifically, the adhesive is polymer cement mortar.

[0058] Specifically, the preset energy in step S3 is 10% of the peak energy.

[0059] Specifically, the detection rate of hollow spots in the first prefabricated thermal insulation wall is used to determine whether the bonding of the first prefabricated thermal insulation wall meets the preset standards.

[0060] If the detection rate of hollow spots is less than the first preset hollow spot detection rate of 0.25, then it is determined that the bonding of the first prefabricated thermal insulation wall meets the preset standard.

[0061] If the detection rate of hollow points is greater than or equal to the first preset hollow point detection rate and less than the second preset hollow point detection rate of 0.55, then it is determined that the bonding of the first prefabricated thermal insulation wall meets the preset standard, and the bonding of the first prefabricated thermal insulation wall meets the preset standard again based on the area of ​​the largest hollow area of ​​the first prefabricated thermal insulation wall.

[0062] If the detection rate of hollow points is greater than or equal to the second preset hollow point detection rate, it is determined that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, and the installation adjustment strategy when the bonding of the first prefabricated thermal insulation wall does not meet the preset standard is determined according to the center depth of the maximum hollow area of ​​the first prefabricated thermal insulation wall.

[0063] Specifically, the first preset hollow point detection rate is in the range of (0.15, 0.30), and the second preset hollow point detection rate is in the range of (0.35, 0.60). Preferably, the first preset hollow point detection rate is selected as 0.25, and the second preset hollow point detection rate is selected as 0.55.

[0064] Specifically, when the detection rate of hollow points is lower than the first preset detection rate, the hollow areas are scattered and isolated, and will not form a continuous failure channel; when the comparison result is in the range, it indicates that there is a risk of local hollow clustering, and the maximum hollow area is introduced for secondary judgment to verify the wall's bonding effect; when the detection rate of hollow points is higher than the second preset detection rate, the hollow points are dense, forming a continuous weak zone, and the edges of the hollow areas are prone to shear cracks that extend to detachment.

[0065] Specifically, the hollow point detection rate is the ratio of the number of detection points with a characteristic decay time greater than the preset decay time of 1.5s to the total number of detection points, wherein the detection points with a characteristic decay time greater than the preset decay time are recorded as hollow points.

[0066] Specifically, the hollow area forms an acoustic reflection interface due to the air gap, and the sound waves generated by the strike are reflected and resonated multiple times in the cavity, resulting in a longer energy decay time.

[0067] Specifically, the adhesion of the first prefabricated thermal insulation wall is determined a second time based on the area of ​​the largest hollow area to determine whether it meets the preset standard.

[0068] If the area of ​​the maximum hollow area is less than the preset hollow area of ​​70cm 2 If so, it is determined that the bonding of the first prefabricated thermal insulation wall conforms to the preset standard;

[0069] If the area of ​​the maximum hollow area is greater than or equal to the area of ​​the preset hollow area, it is determined that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, and the first preset thickness of the adhesive is increased according to the difference between the area of ​​the maximum hollow area and the area of ​​the preset hollow area.

[0070] The area of ​​the hollow region is obtained by an infrared thermal imager, which can be a FLIRT540 or any other type, as long as it meets the requirements for area acquisition.

[0071] In this embodiment, the area of ​​the pre-defined hollow region is selected as 70cm². 2 However, the above values ​​are not limited to these, and those skilled in the art can adjust the values ​​according to actual needs.

[0072] Specifically, if the area of ​​the largest hollow area is smaller than the preset hollow area, it is considered a shallow hollow area. The hollow area is located inside the adhesive layer or at the interface between the adhesive layer and the wall panel. The cause is often insufficient pushing pressure, resulting in incomplete filling of the adhesive or the presence of air bubbles. If the area of ​​the largest hollow area is greater than or equal to the preset hollow area, it is considered a shallow hollow area. The hollow area extends to the concrete of the installation base, indicating that the installation base is loose and needs to be reinforced by anchoring to compensate for the defects of the installation base.

[0073] Specifically, several thickness-increasing methods are provided for increasing the first preset thickness of the adhesive application, wherein,

[0074] If the area difference is less than the first preset area difference of 10cm 2 Then, the first preset thickness of the adhesive application is increased to the corresponding value using the first preset coefficient of 1.02;

[0075] If the area difference is greater than or equal to the first preset area difference and less than the second preset area difference of 35cm 2 Then, the first preset thickness of the adhesive application is increased to the corresponding value using the second preset coefficient of 1.04;

[0076] If the area difference is greater than or equal to the second preset area difference, then the first preset thickness of the adhesive application is increased to the corresponding value using the third preset coefficient 1.06;

[0077] The area difference is the difference between the area of ​​the maximum hollow area and the area of ​​the preset hollow area.

[0078] Specifically, the installation adjustment strategy for when the adhesion of the first prefabricated thermal insulation wall does not meet the preset standard is determined based on the center depth of the largest hollow area.

[0079] If the center depth is less than the preset depth by 20mm, the pushing force during the installation of the thermal insulation wall will be increased according to the difference between the preset depth and the center depth.

[0080] If the center depth is greater than or equal to the preset depth, the drilling depth of the expansion bolt is increased according to the ratio of the center depth to the preset depth; the center depth of the maximum hollow area is obtained by an ultrasonic detector.

[0081] Specifically, the center depth of the largest hollow area is the depth at the geometric center point of the largest hollow area.

[0082] Specifically, when the center depth is less than the preset depth, it indicates that the hollow area is mainly caused by insufficient adhesive pressure, and the pushing pressure needs to be increased to compensate for the interface bonding defects; when the center depth is greater than or equal to the preset depth, it indicates that the mounting base is structurally loose, and the drilling depth of the expansion bolts needs to be increased to make the anchoring point penetrate into the dense mounting base.

[0083] Specifically, the increase in the drilling depth of the expansion bolt is positively correlated with the depth ratio. This positive correlation can be linear or nonlinear. The slope of the linear positive correlation is not specifically limited. It can be understood that the larger the depth ratio, the greater the increase in the drilling depth of the expansion bolt. The depth ratio is the ratio of the center depth to the preset depth.

[0084] Specifically, the preset depth is 20mm, but the above value is not limited to this, and those skilled in the art can adjust the value according to actual needs.

[0085] Specifically, the anchorage of the first prefabricated thermal insulation wall is determined to meet a preset standard based on the maximum strain value of the first prefabricated thermal insulation wall.

[0086] If the maximum strain value is less than the first preset strain value of 180με, then the anchoring of the first prefabricated thermal insulation wall is determined to meet the preset standard.

[0087] If the maximum strain value is greater than or equal to the first preset strain value and less than the second preset strain value of 320με, it is determined that the anchoring of the first prefabricated thermal insulation wall does not meet the preset standard, and the torque of the anchor is increased according to the difference between the maximum strain value and the first preset strain value.

[0088] If the maximum strain value is greater than or equal to the second preset strain value, it is determined that the anchoring of the first prefabricated thermal insulation wall does not meet the preset standard, and the anchor is replaced.

[0089] The second preset strain value is greater than the first preset strain value.

[0090] In this embodiment, the first preset strain value is selected as 180με and the second preset strain value is selected as 320με. However, the above values ​​are not limited to these, and those skilled in the art can adjust the values ​​according to actual needs.

[0091] Specifically, when the strain value is lower than the first preset strain value, it indicates that the anchor only produces recoverable elastic deformation under load, and there is no plastic slip or damage at the anchoring interface; when the strain value is in the range, it enters the elastic-plastic transition zone, which will produce micro-slip, and increasing the torque can restore the interface compressive stress and inhibit slip development; when the strain value is greater than the second preset strain value, the anchor produces plastic deformation, and the anchor needs to be replaced.

[0092] Specifically, the process of obtaining the maximum strain value of the first prefabricated thermal insulation wall includes:

[0093] Strain gauges are attached to the joint between the anchor and the wall;

[0094] A preset load of 150N is applied to the surface of the first prefabricated thermal insulation wall at a preset distance of 100mm from the anchor point, parallel to the first prefabricated thermal insulation wall. The loading rate is less than 5N / s, and the load holding time is 30s.

[0095] Record the strain force of each strain gauge to obtain the maximum strain value.

[0096] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0097] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A prefabricated wall installation method based on thermal insulation, characterized in that, include: Apply an adhesive of a first preset thickness to the wall surface of the first prefabricated thermal insulation wall, press and stick the first prefabricated thermal insulation wall onto the installation base surface, and install a temporary bracket at the bottom of the first prefabricated thermal insulation wall. After the adhesive has cured for a preset curing time, several detection points of the first prefabricated thermal insulation wall are tapped to obtain the corresponding sound wave attenuation curves, and the characteristic attenuation time is extracted to obtain the hollow point detection rate. The characteristic attenuation time is the time required for the sound wave energy generated by tapping each detection point to attenuate to a preset energy based on the energy of the first peak of the sound wave. When the detection rate of hollow points of the first prefabricated thermal insulation wall determines that the bonding of the first prefabricated thermal insulation wall meets the preset standard, the area of ​​the largest hollow area is used to make a second determination on whether the bonding of the first prefabricated thermal insulation wall meets the preset standard. When the detection rate of hollow points determines that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, the installation adjustment strategy for the first prefabricated thermal insulation wall does not meet the preset standard is determined based on the center depth of the largest hollow area. Install the anchors of the first prefabricated thermal insulation wall that meet the preset standards according to the design drawings. Attach strain gauges to the joint between the anchors and the wall, obtain the strain force of the strain gauges, and calculate the maximum strain value. If the anchoring of the first prefabricated thermal insulation wall meets the preset standards based on the maximum strain value, remove the temporary support. Install the subsequent prefabricated insulated walls according to the design installation sequence, and seal the gaps between adjacent prefabricated insulated walls with sealant.

2. The prefabricated wall installation method based on thermal insulation according to claim 1, characterized in that, The detection rate of hollow spots in the first prefabricated thermal insulation wall is used to determine whether the bonding of the first prefabricated thermal insulation wall meets the preset standards. If the detection rate of hollow spots is less than the first preset detection rate of hollow spots, it is determined that the bonding of the first prefabricated thermal insulation wall meets the preset standard. If the detection rate of hollow points is greater than or equal to the first preset hollow point detection rate and less than the second preset hollow point detection rate, it is determined that the bonding of the first prefabricated thermal insulation wall meets the preset standard, and the bonding of the first prefabricated thermal insulation wall meets the preset standard again based on the maximum hollow area of ​​the first prefabricated thermal insulation wall. If the detection rate of hollow points is greater than or equal to the second preset hollow point detection rate, it is determined that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, and the installation adjustment strategy when the bonding of the first prefabricated thermal insulation wall does not meet the preset standard is determined according to the center depth of the maximum hollow area of ​​the first prefabricated thermal insulation wall.

3. The prefabricated wall installation method based on thermal insulation according to claim 2, characterized in that, The hollow point detection rate is the ratio of the number of detection points whose characteristic decay time is greater than the preset decay time to the total number of detection points, wherein the detection points whose characteristic decay time is greater than the preset decay time are recorded as hollow points.

4. The prefabricated wall installation method based on thermal insulation according to claim 3, characterized in that, Based on the area of ​​the largest hollow area, a secondary determination is made as to whether the bonding of the first prefabricated thermal insulation wall meets the preset standard. If the maximum hollow area is less than the preset hollow area, then the bonding of the first prefabricated thermal insulation wall is determined to meet the preset standard. If the area of ​​the maximum hollow area is greater than or equal to the area of ​​the preset hollow area, it is determined that the bonding of the first prefabricated thermal insulation wall does not meet the preset standard, and the first preset thickness of the adhesive is increased according to the difference between the area of ​​the maximum hollow area and the area of ​​the preset hollow area. The area of ​​the hollow region was obtained using an infrared thermal imager.

5. The prefabricated wall installation method based on thermal insulation according to claim 4, characterized in that, Several thickness increase methods are provided for increasing the first preset thickness of the adhesive coating, and each thickness increase method increases the first preset thickness by a different amount.

6. The prefabricated wall installation method based on thermal insulation according to claim 5, characterized in that, The installation adjustment strategy for when the adhesion of the first prefabricated thermal insulation wall does not meet the preset standard is determined based on the center depth of the largest hollow area. If the center depth is less than the preset depth, the pushing force during the installation of the thermal insulation wall will be increased according to the difference between the preset depth and the center depth. If the center depth is greater than or equal to the preset depth, the drilling depth of the expansion bolt is increased according to the ratio of the center depth to the preset depth; the center depth of the maximum hollow area is obtained by an ultrasonic detector.

7. The prefabricated wall installation method based on thermal insulation according to claim 6, characterized in that, The increase in the drilling depth of the expansion bolt is positively correlated with the depth ratio, where the depth ratio is the ratio of the center depth to the preset depth.

8. The prefabricated wall installation method based on thermal insulation according to claim 7, characterized in that, The anchorage of the first prefabricated thermal insulation wall is determined to be non-compliant with the preset standard based on the fact that the maximum strain value of the first prefabricated thermal insulation wall is greater than or equal to the first preset strain value.

9. The prefabricated wall installation method based on thermal insulation according to claim 8, characterized in that, When the maximum strain value of the first prefabricated thermal insulation wall is greater than or equal to the first preset strain value and less than the second preset strain value, the torque of the anchor is increased according to the difference between the maximum strain value and the first preset strain value; and when the maximum strain value of the first prefabricated thermal insulation wall is greater than or equal to the second preset strain value, the anchor is replaced. The second preset strain value is greater than the first preset strain value.

10. The prefabricated wall installation method based on thermal insulation according to claim 9, characterized in that, The process of obtaining the maximum strain value of the first prefabricated thermal insulation wall includes: Strain gauges are attached to the joint between the anchor and the wall; A preset load parallel to the first prefabricated thermal insulation wall is applied to the surface of the first prefabricated thermal insulation wall at a preset distance from the anchor point; Record the strain force of each strain gauge to obtain the maximum strain value.

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