Method for calculating optimal spreading amount of road tack coat oil based on interlayer interface three-dimensional characteristics

Abstract

The invention is applicable to the technical field of road construction, and particularly relates to an interlayer interface three-dimensional feature-based road tack coat oil optimal spreading amount calculation method, which comprises the following steps of: acquiring point cloud elevation data of a cement board which is not subjected to interface treatment before and after spreading of an optimal bonding amount of a bonding material; determining the actual measurement quality and the average thickness of the solidified binding material; the theoretical mass of the solidified binding material is determined, and the permeation amount of the binding material is calculated according to the actually measured mass and the theoretical mass; obtaining point cloud elevation data of the cement board; determining the surface area of the cement board interface; and performing conversion to obtain the optimal spreading amount of the cement board. According to the method, the optimal quality of the bonding material under the unit surface area can be accurately calculated, errors caused by traditional estimation depending on experience are avoided, waste or insufficiency of the bonding material is avoided through scientific calculation of the spreading amount, material use is optimized, the construction cost is reduced, and the optimal bonding effect of the bonding material on interfaces with different roughness is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of road construction, and in particular relates to a method for calculating the optimal spreading amount of road tack coat oil based on three-dimensional characteristics of interlayer interfaces. Background Art

[0002] To ensure road quality, highway asphalt pavement design specifications require that the bonding performance between the surface layer and the base layer meet regulatory standards. This requires the proper application of binder across the interlayer interface. Currently, the same amount of binder is often applied between layers of varying treatment levels. This results in varying binder thicknesses per unit surface area between layers of varying treatment levels, making it difficult to achieve optimal bonding.

[0003] To address this issue, existing technologies often adjust the amount of adhesive applied at the interface based on engineering experience to achieve optimal bonding. However, this method struggles to accurately quantify the optimal adhesive thickness at the interface, and using this technique makes it difficult to guarantee interlayer bonding performance in harsh environments and on heavily trafficked roads.

[0004] Therefore, how to quantify the mass of adhesive spread per surface area of ​​the interlayer interface, calculate the optimal amount of adhesive spread at the interlayer interface with different roughness, and accurately quantify the optimal adhesive thickness of the interface to improve the interlayer bonding performance are issues that need to be solved urgently. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface, aiming to solve the problem that the existing technology is difficult to accurately quantify the optimal adhesive thickness of the interface and difficult to ensure the interlayer bonding performance in harsh environments and heavy traffic roads.

[0006] The present invention is achieved by a method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface, the method comprising:

[0007] Obtain cement board without interface treatment Optimal bonding amount of adhesive Point cloud elevation data before and after spreading;

[0008] Determine the measured quality of the adhesive after curing based on point cloud elevation data and average thickness ;

[0009] Determine the theoretical mass of the cured binder , according to the measured quality and theoretical quality Calculate the penetration of the adhesive ;

[0010] Obtaining cement board with interface treatment Point cloud elevation data;

[0011] Determine cement slab based on point cloud elevation data Surface area of ​​the interface ;

[0012] Cement board based Surface area of ​​the interface , penetration and average thickness Converted to cement board The best spreading amount .

[0013] Preferably, the cement board without interface treatment is obtained Optimal bonding amount of adhesive In the step of generating point cloud elevation data before and after spreading, cement board Without any treatment, the cement board is collected using 3D laser detection equipment The point cloud elevation data is used to adjust the cement board with the preset optimal spreading amount. Spread evenly, wait until the adhesive is completely solidified, and use 3D laser detection equipment to collect the cement board The point cloud elevation data is processed to reduce noise.

[0014] Preferably, the smooth function is used to perform noise reduction processing through Matlab software, the .x1sx format of the point cloud elevation data is converted into the point cloud .ply format, and the iterative closest point algorithm in MATLAB is called to align the point cloud elevation data before and after the binder is spread, and the aligned result is converted into elevation data.

[0015] Preferably, the measured quality of the adhesive after curing is determined based on the point cloud elevation data. and average thickness In the step, Matlab algorithm is used to calculate the cement board C1 before the adhesive is spread and the cement board after the interface treatment. Cross-sectional length of each row and , use the equivalent trapezoidal calculation formula to calculate the cement board Surface area and cement board Surface area , divide the point cloud elevation data into several small square areas, and calculate the absolute value of the difference between the mean value of the point cloud elevation data of each small area before and after the adhesive is spread Mean of the absolute values ​​of the differences from the mean The product of the area of the small region, and the density of the binder evaporation residue is taken as the measured mass of the binder after solidification .

[0016] Preferably, the cement board is treated at the interface The product of the surface area of the cement board , the penetration amount and the average thickness is converted into the optimal spreading amount of the binder on the cement board . The spreading mass of the binder on the cement board is calculated The product of the surface area of the cement board and the solid content C of the binder is taken as the theoretical mass of the binder after solidification The surface area A1 of the cement board is calculated The ratio of the absolute value of the difference between A1 and A2 to A1 is taken as the penetration amount of the binder on the cement board The product of the volume of the binder evaporation residue, and S is taken as the optimal spreading amount of the binder on the cement board . .

[0017] Preferably, when the cement board is treated at the interface, a shot blasting machine is used to treat the cement board twice at a walking speed of 10 m / s.

[0018] Preferably, the point cloud elevation data of the cement board C1 after noise reduction and before binder spreading is ; The point cloud elevation data of the cement board C1 after binder spreading is ( ); The point cloud elevation data of the cement board C2 is (i = 1, 2,…, 60001; j = 1, 2,…, 60001).

[0019] Preferably, , , A1 and A2 are calculated according to the following formulas:

[0020] wherein, ​Indicates cement concrete panel before spreading the binder The elevation point cloud data The length of the cross section, in mm; Indicates cement concrete panel before spreading the binder The data of the elevation point cloud data in row i and column j, in mm;

[0021] ;

[0022] Among them, A1 represents the cement concrete panel before the bonding material is spread Surface area in mm 2 ;

[0023] Indicates cement concrete panel before spreading the binder The elevation point cloud data The length of the cross section, in mm;

[0024] ;

[0025] in, Represents cement concrete panel after interface treatment The elevation point cloud data The length of the cross section, in mm;

[0026] Cement concrete panel The data of the elevation point cloud data in row i and column j, in mm;

[0027] ;

[0028] Among them, A2 represents the cement concrete panel after interface treatment Surface area in mm 2 ;

[0029] Represents cement concrete panel after interface treatment The elevation point cloud data The length of the cross section in mm.

[0030] Preferably, measured quality Expressed as:

[0031] ;

[0032] in, Indicates the measured mass of the binder after curing, in kg; represents the evaporation residue mass of the cementitious material, in Kg / m3, represents the height difference average of the area in the row and the column, in mm.

[0033] The optimal spreading amount of the road tack coat oil is preferably represented by:

[0034] ;

[0035] wherein, represents the spreading amount of the cementitious material on the cement concrete panel after treatment, in Kg / m 2 , represents the density of the evaporation residue of the cementitious material, in Kg / m 3 , represents the height difference average of the cement panel C1 before and after the spreading of the cementitious material, in mm, and S represents the surface area of the cement concrete panel after treatment, in mm 2 , represents the penetration amount of the cementitious material on the cement panel, in Kg / m 2 , and C represents the solid content of the cementitious material, in %.

[0036] The method for calculating the optimal spreading amount of the road tack coat oil based on the three-dimensional characteristics of the interlayer interface provided by the present application can accurately calculate the optimal mass of the cementitious material under a unit surface area based on the three-dimensional laser technology for measuring the interface roughness, avoid the errors of the traditional experience estimation, and avoid the waste or deficiency of the cementitious material through scientific calculation of the spreading amount, optimize the material use, reduce the construction cost, ensure the optimal bonding effect of the cementitious material on different roughness interfaces, improve the consistency and stability of the construction quality, propose the concept of interface penetration amount t, obtain the cementitious material penetration amount under a unit surface of different roughness interfaces through relevant calculation methods, adjust the optimal spreading amount of the cementitious material on the interface according to the penetration amount, and be suitable for different types of interlayer interfaces and can be used in various engineering scenes, and has good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 The flowchart of the method for calculating the optimal spreading amount of the road tack coat oil based on the three-dimensional characteristics of the interlayer interface provided by the present application is provided. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0039] like Figure 1 FIG. 1 is a flow chart of a method for calculating an optimal spreading amount of road tack oil based on three-dimensional features of an interlayer interface according to an embodiment of the present invention. The method includes:

[0040] Obtain cement board without interface treatment Optimal bonding amount of adhesive Point cloud elevation data before and after spreading.

[0041] Determine the measured quality of the adhesive after curing based on point cloud elevation data and average thickness .

[0042] Determine the theoretical mass of the cured binder , according to the measured quality and theoretical quality Calculate the penetration of the adhesive .

[0043] Obtaining cement board with interface treatment Point cloud elevation data.

[0044] Determine the cement board based on point cloud elevation data Surface area of ​​the interface .

[0045] Cement board based Surface area of ​​the interface , penetration and average thickness Converted to cement board The best spreading amount .

[0046] In this example, two indoor C50 cement boards were prepared with reference to the General Code for Concrete Structures. The boards were sized 300 mm * 300 mm * 50 mm and were numbered C1 and C2. Cement board C1 was not treated in any way, while cement board C2 was subjected to interface treatment to increase interface roughness. A three-dimensional laser detection device was used to collect point cloud elevation data of cement boards C1 and C2. A certain binder was evenly spread on cement board C1 at an optimal spreading rate. After the binder was completely cured, the point cloud elevation data of cement board C1 was collected using a three-dimensional laser detection device. Cement board C2 was treated twice using a shot blasting machine at a travel speed of 10 m / s. The laser cross-section projection interval in the acquisition parameters of the three-dimensional laser detection device was 0.05 mm * 0.05 mm.

[0047] Based on Matlab software, the smooth function is used to denoise the data, the.x1sx format of the elevation data is converted into point cloud.ply format, and the iterative closest point (ICP) algorithm in MATLAB is called to register the point cloud elevation data before and after the binder spreading, and the registered results are converted into elevation data;

[0048] The point cloud elevation data of cement board C1 before binder spreading after denoising and registration is (i = 1, 2,…, 60001; j = 1, 2,…, 60001); The point cloud elevation data of cement board C1 after binder spreading is ( = 1, 2,…, 60001; = 1,2,…, 60001);The point cloud elevation data of cement board C2 is (i = 1, 2,…, 60001; j = 1, 2,…, 60001)。

[0049] The calculation uses Matlab algorithm to calculate the cement board C1 before binder spreading and the cement concrete panel after interface treatment The cross-sectional length of each row And , the surface area A1 and A2 of the cement board are calculated using the equivalent trapezoidal calculation formula.

[0050] 、 , the calculation formula of A1 and A2 is as follows:

[0051] ;

[0052] Wherein, represents the length of the cross section of the elevation point cloud data of the cement concrete panel before binder spreading, unit: mm;

[0053] represents the data of the i-th row and the j-th column of the elevation point cloud data of the cement concrete panel before binder spreading, unit: mm.

[0054] ;

[0055] Wherein, A1 represents the surface area of the cement concrete panel before binder spreading, unit: mm 2 ;​

[0056] represents the length of the cross section of the elevation point cloud data of the cement concrete panel before binder spreading represents the length of the cross section of the elevation point cloud data of the cement concrete panel after interface treatment

[0057] ;

[0058] wherein, represents the length of the cross section of the elevation point cloud data of the cement concrete panel after interface treatment represents the length of the cross section of the elevation point cloud data of the cement concrete panel after interface treatment

[0059] represents the data of the i-th row and the j-th column of the elevation point cloud data of the cement concrete panel

[0060] ;

[0061] wherein, A2 represents the surface area of the cement concrete panel after interface treatment 2 ;

[0062] represents the length of the cross section of the elevation point cloud data of the cement concrete panel after interface treatment represents the length of the cross section of the elevation point cloud data of the cement concrete panel after interface treatment

[0063] The three-dimensional point cloud elevation data is divided into a plurality of square small areas, and the absolute value of the difference between the mean values of the point cloud elevation data of each small area before and after binder spreading and the mean value of the absolute value of the difference between the mean values The product of the area of the small area, and the binder evaporation residue density is taken as the measured quality of the binder after solidification ;

[0064] The size of the square small area is 0.2mm*0.2mm; , and The calculation formula is as follows:

[0065] ;

[0066] wherein, represents the mean value of the height difference of the area of the p-th row and the q-th column, in mm;

[0067] ​​​​​represents the elevation of the point cloud data of the pth row and the qth column in the region before the binder is spread, in mm;

[0068] represents the elevation of the point cloud data of the pth row and the qth column in the region after the binder is spread, in mm.

[0069] ;

[0070] wherein, represents the average height difference of the cement board C1 before and after the binder is spread, in mm;

[0071] represents the average height difference of the pth row and the qth column region, in mm;

[0072] p represents the total number of rows in which the cement board C1 is divided into a plurality of regions;

[0073] q represents the total number of columns in which the cement board C1 is divided into a plurality of regions.

[0074] ;

[0075] wherein, represents the measured mass of the binder after solidification, in Kg;

[0076] represents the evaporation residue mass of the binder, in Kg / m 3 ;

[0077] represents the average height difference of the pth row and the qth column region, in mm.

[0078] The binder spreading mass on the cement concrete panel is calculated, the product of and the solid content C of the binder is taken as the theoretical mass of the binder after solidification , the surface area A1 of the cement board C1 is calculated, and the absolute value of the difference between and is taken as the penetration amount of the binder to the cement board ;

[0079] , and t are calculated according to the following formula:

[0080] ;

[0081] wherein, represents the binder spreading mass on the cement concrete panel , in Kg;

[0082] optimum spreading amount of the binder, unit: m 2 ;

[0083] ;

[0084] wherein, theoretical mass of the binder after solidification, unit: Kg

[0085] the spreading mass of the binder on the cement concrete panel , unit: Kg

[0086] C represents the solid content of the binder, unit: %

[0087] ;

[0088] wherein, penetration amount of the binder into the cement panel, unit: Kg / m 2 ;

[0089] theoretical mass of the binder after solidification, unit: Kg

[0090] measured mass of the binder after solidification, unit: Kg

[0091] volume of the binder evaporation residue, and the ratio of the product of the solid content C of the binder and the penetration amount of the binder into the cement panel optimum spreading amount of the cement panel C2 .

[0092] The calculation formula is:

[0093] ;

[0094] wherein, spreading amount of the cement concrete panel after interface treatment, unit: Kg / m 2 ;

[0095] density of the binder evaporation residue, unit: Kg / m 3 ;

[0096] represents the average height difference of the cement panel C1 before and after the binder spreading, unit: mm

[0097] S represents the cement concrete panel after interface treatment The surface area of ​​the product is in mm+;

[0098] Indicates the penetration of the binder into the cement board, the unit is Kg / m 2 ;

[0099] C represents the solid content of the binder, in %.

[0100] In a specific embodiment of the present invention:

[0101] Step 1: Prepare two indoor C50 cement boards according to the General Code for Concrete Structures. The size of the cement boards is 300mm*300mm*50mm, and they are numbered C1 and C2 respectively.

[0102] Step 2: The cement board C1 was not treated in any way, and the interface of the cement board C2 was treated using a PWJ270 horizontal movable shot blasting machine produced by Henan Yuxin Company. The test shot material was cast steel shot with a particle size of 1.2 mm, the shot blasting machine travel speed was 10 m / min, and the shot blasting times were 2 times.

[0103] Step 3: Use a 3D laser detection device to collect point cloud elevation data of cement slabs C1 and C2. The laser cross-section projection interval of the 3D laser detection device is 0.05mm*0.05mm.

[0104] Step 4: Use solid content C of 65% and evaporation residue density 1030Kg / m 3 The SBS modified asphalt binder is spread at an optimal rate of 1.65 kg / m 2 The cement board C1 is evenly spread. After the adhesive is completely cured, the point cloud elevation data of the cement board C2 is collected using a 3D laser detection device.

[0105] Step 5: Use the smooth function in Matlab software to reduce noise on the data. Convert the .x1sx format of the elevation data of cement board C1 before the application of the binder collected in steps 3 and 4 into the point cloud .ply format. Call the iterative closest point (ICP) algorithm in MATLAB to align the point cloud elevation data before and after the application of the binder, and convert the alignment result into elevation data. The size of cement board C1 is 300mm*300mm. The data volume of each data set is 60001*60001, totaling 3600120001 data points.

[0106] The point cloud elevation data of the cement board C1 before the adhesive is spread after noise reduction and registration is: (i = 1, 2,…,60001; j = 1, 2,…, 60001); The point cloud elevation data of the cement board C1 after the adhesive is spread is ( = 1, 2,…, 60001; = 1,2,…, 60001); The point cloud elevation data of cement board C2 is (i = 1, 2,…, 60001; j = 1, 2,…, 60001).

[0107] Step 6: Calculate the cement board C1 before the adhesive is spread and the cement concrete panel after interface treatment using Matlab algorithm Cross-sectional length of each row and , use the equivalent trapezoidal calculation formula to calculate the surface areas A1 and A2 of the cement board. The specific calculation formula is:

[0108] ;

[0109] in, Indicates cement concrete panel before spreading the binder The elevation point cloud data The length of the cross section, in mm;

[0110] Indicates cement concrete panel before spreading the binder The data of the elevation point cloud data in row i and column j is in mm.

[0111] ;

[0112] Among them, A1 represents the cement concrete panel before the bonding material is spread Surface area in mm 2 ;

[0113] Indicates cement concrete panel before spreading the binder The elevation point cloud data The length of the cross section in mm.

[0114] ;

[0115] in, Represents cement concrete panel after interface treatment The elevation point cloud data The length of the cross section, in mm;

[0116] represents the elevation point cloud data of the cement concrete panel after interface treatment, unit: mm.

[0117] ;

[0118] wherein A2 represents the surface area of the cement concrete panel after interface treatment, unit: mm 2 ;

[0119] represents the length of the cross section of the elevation point cloud data of the cement concrete panel after interface treatment, unit: mm.

[0120] According to the formula, the surface area A1 of the cement concrete panel before binder spreading is 98640mm 2 , and the surface area A2 of the cement concrete panel after interface treatment is 138733mm 2 .

[0121] Step seven: divide the point cloud elevation data into a plurality of square small areas with a size of 0.2mm*0.2mm, a total of 1501*1501 areas, calculate the absolute value of the difference between the mean value of the point cloud elevation data of each small area before and after binder spreading and the mean value of the absolute value of the difference , take the product of the area of the small area, and the binder evaporation residue density as the measured quality of the binder after solidification , and the calculation formula is as follows:

[0122] ;

[0123] wherein, represents the mean value of the height difference of the area in the pth row and the qth column, unit: mm;

[0124] represents the elevation of the point cloud data in the u row and the v column in the area before binder spreading, unit: mm;

[0125] represents the elevation of the point cloud data in the u row and the v column in the area after binder spreading, unit: mm.

[0126] ;

[0127] wherein,​ represents the average height difference of cement board C1 before and after the binder spreading, in mm;

[0128] represents the average height difference of the region in the pth row and qth column, in mm;

[0129] p represents the total number of rows in which the cement board C1 is divided into several regions;

[0130] q represents the total number of columns in which the cement board C1 is divided into several regions.

[0131] ;

[0132] wherein, represents the measured mass of the binder after solidification, in Kg;

[0133] represents the evaporation residue mass of the binder, in Kg / m 3 ;

[0134] represents the average height difference of the region in the pth row and qth column, in mm.

[0135] According to the formula, the measured mass of the binder after solidification of the cement board C1 is 0.0849 Kg, and the average height difference of the cement board C1 before and after the binder spreading is 0.95 mm.

[0136] Step eight: Calculate the spreading mass of the binder on the cement concrete panel , the product of A1 and the solid content C of the binder is taken as the theoretical mass of the binder after solidification , and the absolute value of the difference between A2 and A1 is taken as the penetration amount of the binder to the cement board , and the calculation formula is as follows:

[0137] ;

[0138] wherein, represents the spreading mass of the binder on the cement concrete panel , in Kg;

[0139] represents the optimal spreading amount of the binder, in m 2 ;

[0140] ; ​​​​​

[0141] Wherein, M1 represents the theoretical mass of the binder after solidification, unit: Kg;

[0142] M2 represents the mass of the binder spread on the cement concrete panel C1, unit: Kg;

[0143] C represents the solid content of the binder, unit: %;

[0144] ;

[0145] Wherein, M3 represents the penetration amount of the binder to the cement panel, unit: Kg / m 2 ;

[0146] M1 represents the theoretical mass of the binder after solidification, unit: Kg;

[0147] M4 represents the measured mass of the binder after solidification, unit: Kg;

[0148] A1 represents the surface area of the cement concrete panel before the binder is spread, unit: mm 2 ;

[0149] According to the formula, the penetration amount of the binder to the cement panel is 0.1176 Kg / m 2 .

[0150] Step nine: according to the density of the binder evaporation residue , , A1, A2, the solid content C of the binder, the optimal spreading amount s2 of the cement panel C2 is calculated, and the calculation formula is as follows:

[0151] ;

[0152] Wherein, M5 represents the spreading amount of the cement concrete panel after the interface treatment, unit: Kg / m 2 ;

[0153] M6 represents the density of the binder evaporation residue, unit: Kg / m 3 ;

[0154] M7 represents the average height difference of the cement panel C1 before and after the binder is spread, unit: mm;

[0155] A1 represents the surface area of the cement concrete panel Surface area in mm 2 ;

[0156] A2 represents the cement concrete panel after interface treatment Surface area in mm 2 ;

[0157] Indicates the penetration of the binder into the cement board, the unit is Kg / m 2 ;

[0158] C represents the solid content of the binder, in %.

[0159] According to the formula, the cement concrete panel after interface treatment The best spreading amount 2.373Kg / m 2 .

[0160] To verify the optimal binder thickness result, refer to step 4 to evenly spread the SBS modified asphalt binder on the cement board C2 with the optimal spreading amount s2. After the binder is completely cured, use a three-dimensional laser detection device to collect the point cloud elevation data of the cement board C2.

[0161] Refer to step 5 to perform noise reduction and registration on cement board C2. The point cloud elevation data of cement board C2 after the adhesive is spread is: ( = 1, 2,…, 60001; = 1, 2,…, 60001).

[0162] Refer to step 7 to calculate the average height difference of the C2 interface of the cement board before and after the adhesive is spread The specific calculation formula is

[0163]

[0164] in, It represents the average height difference of cement board C2 before and after the adhesive is spread, in mm;

[0165] It represents the elevation of the point cloud data in row p and column q in the area before the adhesive is spread, in mm;

[0166] It represents the elevation of the point cloud data in the p-th row and q-th column in the area after the adhesive is spread, in mm.

[0167] p represents the total number of rows into which the cement board C1 is divided;

[0168] q represents the total column number of the cement board C1 being divided into several regions.

[0169] According to the formula, the average height difference of the cement board C2 before and after the binder spreading is 0.90mm.

[0170] From the results, it can be seen that the optimal spreading amount of the interface of the cement board with different treatment degrees is determined by using the method, and the error is only 5.3%.

[0171] In summary, the optimal binder thickness of the interface of the cement board with different treatment degrees after the treatment is accurately quantified.

[0172] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface, characterized in that: The method comprises: Obtain cement board without interface treatment Optimal bonding amount of adhesive Point cloud elevation data before and after spreading; Determine the measured quality of the adhesive after curing based on point cloud elevation data and average thickness ; Determine the theoretical mass of the cured binder , according to the measured quality and theoretical quality Calculate the penetration of the adhesive ; Obtaining cement board with interface treatment Point cloud elevation data; Determine the cement board based on point cloud elevation data Surface area of ​​the interface ; Cement board based Surface area of ​​the interface , penetration and average thickness Converted to cement board The best spreading amount .

2. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 1 is characterized in that: The cement board without interface treatment is obtained Optimal bonding amount of adhesive In the step of generating point cloud elevation data before and after spreading, cement board Without any treatment, the cement board is collected using 3D laser detection equipment The point cloud elevation data is used to adjust the cement board with the preset optimal spreading amount. Spread evenly, wait until the adhesive is completely solidified, and use 3D laser detection equipment to collect the cement board The point cloud elevation data is processed to reduce noise.

3. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 2 is characterized in that: The smooth function was used in Matlab software to perform noise reduction, and the .x1sx format of the point cloud elevation data was converted into the .ply format of the point cloud. The iterative closest point algorithm in MATLAB was called to align the point cloud elevation data before and after the binder was spread, and the alignment results were converted into elevation data.

4. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 1 is characterized in that: The measured quality of the adhesive after curing is determined based on the point cloud elevation data and average thickness In the step, Matlab algorithm is used to calculate the cement board C1 before the adhesive is spread and the cement board after the interface treatment. Cross-sectional length of each row and , use the equivalent trapezoidal calculation formula to calculate the cement board Surface area and cement board Surface area , divide the point cloud elevation data into several small square areas, and calculate the absolute value of the difference between the mean value of the point cloud elevation data of each small area before and after the adhesive is spread Mean of the absolute values ​​of the differences from the mean , the area of ​​the small area, and density of binder evaporation residue The product of is taken as the measured mass of the binder after curing .

5. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 4 is characterized in that: Cement board based Surface area of ​​the interface , penetration and average thickness Converted to cement board The best spreading amount In the step of calculating the bonding material in cement board Spreading quality ,Will The product of the solid content C of the binder is the theoretical mass of the binder after curing. , calculate cement board The surface area A1 will and The ratio of the absolute value of the difference between the two values ​​and A1 is used as the penetration rate of the binder into the cement board. , the volume of the binder evaporation residue, The ratio of the product of S and the solid content C of the binder plus the penetration of the binder into the cement board As cement board The best spreading amount .

6. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 1 is characterized in that: Cement board When performing interface treatment, use a shot blasting machine at a speed of 10m / s for 2 times.

7. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 1, characterized in that: The point cloud elevation data of the cement board C1 before the adhesive is spread after noise reduction and registration is: ; The point cloud elevation data of the cement board C1 after the adhesive is spread is ( ); The point cloud elevation data of cement board C2 is (i = 1, 2,…, 60001; j = 1, 2,…, 60001).

8. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 4 is characterized in that: 、 , A1, and A2 are calculated as follows: ； in, Indicates cement concrete panel before spreading the binder The elevation point cloud data The length of the cross section, in mm; Indicates cement concrete panel before spreading the binder The data of the elevation point cloud data in row i and column j, in mm; ； Among them, A1 represents the cement concrete panel before the bonding material is spread Surface area in mm 2 ; Indicates cement concrete panel before spreading the binder The elevation point cloud data The length of the cross section, in mm; ； in, Represents cement concrete panel after interface treatment The elevation point cloud data The length of the cross section, in mm; Cement concrete panel The data of the elevation point cloud data in row i and column j, in mm; ； Among them, A2 represents the cement concrete panel after interface treatment Surface area in mm 2 ; Represents cement concrete panel after interface treatment The elevation point cloud data The length of the cross section in mm.

9. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 4, characterized in that: Measured quality Expressed as: ； in, Indicates the measured mass of the binder after curing, in kg; Indicates the mass of the evaporation residue of the binder, in kg / m 3 , Indicates the Rank The mean height difference of the column area, in mm.

10. The method for calculating the optimal spreading amount of road tack oil based on the three-dimensional characteristics of the interlayer interface according to claim 1, characterized in that: Optimal spreading amount Expressed as: ； in, Represents cement concrete panel after interface treatment Spreading amount, unit is Kg / m 2 , Indicates the density of the binder evaporation residue, unit is Kg / m 3 , It represents the average height difference of cement board C1 before and after the bonding material is spread, in mm, and S represents the cement concrete panel after interface treatment. Surface area in mm 2 , Indicates the penetration of the binder into the cement board, the unit is Kg / m 2 , C represents the solid content of the binder, in %.

Images