CN114108420B - Gradient sprinkling type intersection rut repairing method - Google Patents
Gradient sprinkling type intersection rut repairing method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000010426 asphalt Substances 0.000 claims abstract description 58
- 230000008439 repair process Effects 0.000 claims abstract description 15
- 230000006378 damage Effects 0.000 claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 239000004575 stone Substances 0.000 claims description 74
- 230000007480 spreading Effects 0.000 claims description 24
- 238000005096 rolling process Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 4
- 239000010419 fine particle Substances 0.000 claims 3
- 239000011362 coarse particle Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 238000003801 milling Methods 0.000 description 1
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- 239000011387 rubberized asphalt concrete Substances 0.000 description 1
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- 239000002344 surface layer Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
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- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/005—Methods or materials for repairing pavings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
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Abstract
The invention discloses a gradient sprinkling type intersection rut repairing method, which comprises the following repairing steps: step one: cleaning the inside of a rut; step two: measuring all tracks at the intersection by using a line laser track measuring instrument; step three: classifying all ruts; step four: customizing different gradient repair methods for different levels of ruts; step five: detecting an original rut damage area; step six: performing secondary reinforcement repair on the area which does not pass the test, and repeating the fifth step until all the areas pass the test; the grading scheme in the third step comprises the following specific contents: when the maximum groove depth of the rut is in the range of 0mm-15mm (excluding 15), the rut is a first-grade rut; secondary ruts are obtained when the maximum groove depth of the ruts is in the range of 15mm-30mm (excluding 30). The gradient sprinkling type intersection rut repairing method provided by the invention has the advantages of low cost, fast construction and less pollution, and can radically relieve rut phenomenon and remarkably prolong the service life of asphalt pavement of an intersection.
Description
Technical Field
The invention relates to the technical field of road engineering pavement structures, in particular to a gradient sprinkling type intersection rut repairing method.
Background
The existing roads in China are mostly asphalt concrete pavements, rutting damage is easy to occur in the long-term use process, the use function of the pavements is affected, meanwhile, the damage of the asphalt pavements is accelerated, and the service life of the pavements is obviously shortened. This phenomenon is particularly serious near intersections due to the behavior of vehicles frequently starting and stopping at the intersections. The cross section of the rut is close to a sine function, and the vertical section is close to a symmetrical parabola. The existing method for repairing the rut at the intersection mostly adopts the method of milling and re-paving the pavement surface layer of the whole intersection, and the method has the following problems although the effect is instant.
1. The pavement replacement cost is high, the pollution is large, the construction period is long, the social and economic benefits are low, the symptoms and the root causes are not treated, and rut damage still can occur gradually in the follow-up process after the repair is completed.
2. Pavement replacement is not targeted, different damage degrees are cut at the same time, the performance characteristics of materials cannot be fully utilized, and resource waste is caused.
3. If the junction between the new road surface and the old road surface after pavement replacement is not treated, various damages such as water damage, ruts, pits and the like are very easy to occur.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a gradient sprinkling type intersection rut repairing method.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
step one: cleaning the inside of a rut;
step two: measuring all tracks at the intersection by using a line laser track measuring instrument;
step three: classifying all ruts;
step four: customizing different gradient repair methods for different levels of ruts;
step five: carrying out bearing capacity test on the original rut damage area;
step six: performing secondary reinforcement repair on the area which does not pass the test, and repeating the fifth step until all the areas pass the test;
preferably, the grading scheme in the third step comprises the following specific contents:
when the maximum groove depth of the rut is in the range of 0mm-15mm (excluding 15), the rut is a first-grade rut; when the maximum groove depth of the ruts is in the range of 15mm-30mm (excluding 30), the ruts are secondary ruts; three-stage ruts are formed when the maximum groove depth of the ruts is in the range of 30mm-45mm (excluding 45); when the maximum groove depth of the ruts is greater than 45mm, the ruts are four-level ruts;
preferably, the gradient repair method in the fourth step comprises the following specific contents:
the rut sections were fitted using a sine function and the cross-sectional area at different depth positions i (numbered 0, 1, starting from the rut starting point) at the rut bottom was calculated as follows:
wherein S is i Cross-sectional area in mm at different depth locations i 2 Wherein S is 0 Is the cross-sectional area at the start of the rut; a, a i Depth in mm at position i; t is t i Maximum width of the rut section at position i, in mm;
equally dividing the rut into n table-shaped bodies according to the length along the driving direction, starting from the rut starting point, numbering 1,2 and n, wherein the volume calculation formula of each table-shaped body is as follows:
wherein, l-rank, l=1, 2, 3, 4; v (V) m -volume of mth bench body in mm 3 M=1, 2, n; l is the length of the rut, the unit is m; s is S m -bottom surface area of mth mesa body in mm 2 ；S m-1 The top surface area of the mth mesa body in mm 2 ；
B 1 : when the rut is a primary rut, the rut is equally divided into 2 table bodies along the driving direction, and the high-viscosity rubber asphalt mixture is used for repairing, wherein the volume consumption of the high-viscosity rubber asphalt mixture is as follows
B 2 : when the rut is a secondary rut, the rut is equally divided into 3 table-shaped bodies along the driving direction, high-viscosity rubber asphalt and crushed stone are used for repairing, the crushed stone adopts two specifications of coarse (10 mm-15 mm) and fine (5 mm-10 mm), and a layer of high-viscosity rubber asphalt (the dosage is beta) is sprayed on the bottom of the 2 nd part 2 And/2) immediately thereafter spreading coarse-grained crushed stone (amount alpha 21 ) To the subsequent 3 parts were applied a layer of high viscosity rubber asphalt (amounts of beta respectively 1 、β 2 /2、β 3 ) Immediately thereafter, finely divided crushed stone (in an amount of alpha respectively 12 、α 22 、α 32 ) Calculating the full of high-viscosity rubber asphalt and crushed stone particle sizeIt is sufficient that the following formula is used,
(1) When m=1, 3,α m2 ＝V m ；
(2) When m=2, the number of the groups,α m1 +α m2 ＝V m ，
wherein beta is m The amount of high-viscosity rubberized asphalt required for the mth bench body, in mm 3 The method comprises the steps of carrying out a first treatment on the surface of the Lambda-high viscosity rubber asphalt spreading amount per mm 3 /mm 2 ；α m1 The coarse-grain-diameter crushed stone quantity required for the mth bench body in mm 3 ；α m2 -the amount of fine-particle-size crushed stone required for the mth bench body in mm 3 ；-bulk density of coarse-diameter crushed stone measured in laboratory; ρ 1 -a dense density of coarse-diameter crushed stones measured in the laboratory;
B 3 : when the rut is three-level rut, the rut is equally divided into 4 table bodies along the driving direction, high-viscosity rubber asphalt and crushed stone are used for repairing, the crushed stone adopts three specifications of coarse (25 mm-30 mm), medium (15 mm-20 mm) and fine (5 mm-10 mm), and firstly, the bottoms of the 2 nd and the 3 rd parts are sprayed with a layer of high-viscosity rubber asphalt (the dosage is beta respectively 2 /3、β 3 And 3) immediately spreading coarse-grained broken stone (the dosage is alpha respectively 21 、α 31 ) Then 4 parts are sprayed with a layer of high viscosity rubber asphalt (the dosage is beta respectively 1 /2、β 2 /3、β 3 /3、β 4 And/2) immediately spreading medium-sized crushed stone (the dosage is alpha respectively 12 、α 22 、α 32 、α 42 ) Finally, 4 parts are sprayed with a layer of high-viscosity rubber asphalt (the dosage is beta respectively 1 /2、β 2 /3、β 3 /3、β 4 And/2) immediately spreading fine-grained gravels (the dosage is alpha respectively 13 、α 23 、α 33 、α 43 ) The calculation of the high-viscosity rubber asphalt dosage and the crushed stone grain size dosage meets the following formulas,
(1) When m=1, 4,α m2 +α m3 ＝V m ，/>
(2) When m=2, 3,α m1 +α m2 +α m3 ＝V m ，
wherein alpha is m2 The amount of medium-diameter crushed stone required for the mth bench body in mm 3 ；α m3 -the amount of fine-particle-size crushed stone required for the mth bench body in mm 3 ；-bulk density of medium-diameter crushed stone measured in laboratory; ρ 2 -a dense density of medium-diameter crushed stones measured in the laboratory;
B 4 : when the rut is a four-level rut, the rut is equally divided into 5 table-shaped bodies along the driving direction, high-viscosity rubber asphalt and crushed stone are used for repairing, the crushed stone adopts four specifications of coarse (35 mm-40 mm), medium (20 mm-25 mm), finer (10 mm-15 mm) and fine (5 mm-10 mm), and a layer of high-viscosity rubber asphalt (the dosage is beta) is sprayed on the bottom of the 3 rd part firstly 3 And/4) immediately spreading coarse-grained crushed stone (the dosage is alpha 31 ) Subsequent to sections 2, 3, 4Are sprayed with a layer of high-viscosity rubber asphalt (the dosage is beta respectively 2 /3、β 3 /4、β 4 3) immediately spreading medium-sized crushed stone (the dosage is alpha respectively 22 、α 32 、α 42 ) Then, a layer of high viscosity rubber asphalt (the dosage is beta respectively) is sprayed on 5 parts 1 /2、β 2 /3、β 3 /4、β 4 /3、β 5 And/2) immediately spreading crushed stone with smaller particle diameter (the dosage is alpha respectively 13 、α 23 、α 33 、α 43 、α 53 ) Finally, 5 parts are sprayed with a layer of high-viscosity rubber asphalt (the dosage is beta respectively 1 /2、β 2 /3、β 3 /4、β 4 /3、β 5 And/2) immediately spreading fine-grained gravels (the dosage is alpha respectively 14 、α 24 、α 34 、α 44 、α 54 ) The calculation of the high-viscosity rubber asphalt dosage and the crushed stone grain size dosage meets the following formulas,
(1) When m=3, the number of the groups,α m1 +α m2 +α m3 +α m4 ＝V m ，
(2) When m=2, 4,α m2 +α m3 +α m4 ＝V m ，
(3) When m=1, 5,α m3 +α m4 ＝V m ，/>
wherein alpha is m3 -the amount of finer-particle-size crushed stone required for the mth bench body in mm 3 ；α m4 -the amount of fine-particle-size crushed stone required for the mth bench body in mm 3 ；-bulk density of finer particle size crushed stone measured in laboratory; ρ 3 -the dense density of finer diameter crushed stone measured in the laboratory;
and after the rut repair is finished, vibrating and rolling for 4-6 times in the repair area by using a double-steel-wheel road roller, and finally rolling for 6-8 times in the repair area by using a rubber-wheel road roller.
Preferably, the specific operation steps of the first step are as follows: firstly, using a pavement microwave maintenance vehicle to dry residual moisture in and around a rut; secondly, the sundries and dust inside the ruts are blown away by using a blower.
Preferably, the data to be measured in step two are as follows: a cross-sectional view of the rut, the total length of the rut, and the depth and width of the rut at all points.
Preferably, the fifth specific content is as follows: firstly, performing deflection detection by using a drop hammer deflection instrument, wherein a deflection value smaller than or equal to 1mm is regarded as qualified, and a deflection value larger than 1mm is regarded as unqualified; and (3) parking a heavy truck in the area which is detected by deflection and is away from the driving direction by 200m, starting the heavy truck to advance at the speed of 30km/h, performing braking operation when the heavy truck reaches the starting point of the area, stopping completely, performing starting operation again, returning to the starting position of the truck, repeating the operation for 20 times, and observing whether broken stone loosening occurs in the area, if so, judging that the heavy truck is unqualified, and otherwise, judging that the heavy truck is qualified.
Preferably, the sixth reinforcement repair method is as follows: firstly, heating a repairing area to 120 ℃ by using a microwave heating vehicle, manually scattering a high-viscosity asphalt film with the thickness of 1mm, leveling and spreading the repairing area with crushed stone with the diameter of O-2mm, then vibrating and rolling the repairing area back and forth for 2-4 times by using a double-steel-wheel road roller, and finally rolling the repairing area back and forth for 3-5 times by using a rubber-wheel road roller.
Compared with the prior art, the invention provides a gradient sprinkling type intersection rut repairing method, which has the following beneficial effects:
1. the rut repairing method provided by the invention only needs to repair the rut damage area, has the advantages of low cost, quick construction and less pollution, and fully exerts the hardness and strength of the crushed stone materials and the embedding force between the materials by utilizing the embedding structure formed by gradient sprinkling of the high-viscosity rubber asphalt and the crushed stone, so that the rut phenomenon is relieved from the root, and the service life of the asphalt pavement at the intersection is obviously prolonged.
2. The track grading repairing method provided by the invention is characterized in that different repairing methods are customized according to local conditions and aiming at track injuries with different depths, and the track is subjected to subsection analysis by utilizing a mathematical method, the required material consumption is calculated, and gradient sprinkling is performed, so that the track injuries with different depths can be repaired pertinently, and the waste of resources can be greatly reduced.
3. The rut repairing method provided by the invention improves the bonding effect with the old pavement by utilizing the viscosity and the waterproofness of the high-viscosity rubber asphalt and the embedding and extruding force between the broken stone, and has the advantages of high strength and good waterproofness, and prolongs the service life of the asphalt pavement at the intersection.
4. According to the detection and reinforcement method provided by the invention, after the repairing of the track damage area is completed, deflection detection and broken stone loosening detection are carried out, the detection result is used for reflecting whether the repairing area is compacted or not, the construction effect is checked, the construction quality is ensured, the secondary reinforcement operation is carried out on the area which does not pass through, the repairing effect is improved, and the driving safety of the road surface is obviously improved.
The gradient sprinkling type intersection rut repairing method provided by the invention has the advantages of low cost, fast construction and less pollution, and can radically relieve rut phenomenon and remarkably prolong the service life of asphalt pavement of an intersection.
Drawings
FIG. 1 is a flow chart of a repair method;
FIG. 2 is a schematic representation of rut induced failure of a facing and substrate;
FIG. 3 is a top view of a split four-level rut;
FIG. 4 is a longitudinal cross-sectional view of a split four-level rut;
in the figure: 1-1 primary rut, 1-2 secondary rut, 1-3 tertiary rut, and 1-4 quaternary rut.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Taking a certain road section as an example, the total length of the road section is 712 meters, the road section is an urban secondary trunk road, four lanes are two-way, and the width of a traffic lane is 15m. At the intersection, partial rut damage exists, one rut is repaired by a gradient sprinkling type intersection rut repairing method, and the specific repairing steps are as follows:
step one: the microwave maintenance vehicle on the road surface is started to dry the residual moisture in and around the rut, and then the sundries and dust in the rut are blown away by using a blower.
Step two: the rut is detected by using a linear laser rut measuring instrument, and a section image of the rut, the total length of the rut and depth and width data of all positions of the rut are obtained.
Step three: the maximum groove depth of the rut is 50mm, and the rut is four-level ruts 1-4, as shown in figure 2. Dividing the total track length L=2000 mm measured in the second step into five table bodies 1-5 according to the length of 400mm, numbering the endpoints of each table body to be i=0, i=1, i=2, i= 3,i =4 and i=5, and obtaining the depth a at each endpoint 1 、a 2 、a 3 、a 4 And the track width t corresponding to each end point position 0 、t 1 、t 2 、t 3 、t 4 、t 5 As shown in fig. 3 and 4. According to the formulaCalculating the cross-sectional area S of each end point 0 、S 1 、S 2 、S 3 、S 4 、S 5 According to the formula-> n=l+1, and the volume V of each table body is calculated 1 、V 2 、V 3 、V 4 、V 5 。
The high-viscosity rubber asphalt consumption and the crushed stone particle size consumption required by each table body are calculated according to the following formula:
(1) When m=3, the number of the groups,α m1 +α m2 +α m3 +α m4 ＝V m ，
(2) When m=2, 4,α m2 +α m3 +α m4 ＝V m ，
(3) When m=1, 5,α m3 +α m4 ＝V m ，/>
step four: when the rut is a four-level rut, the rut is equally divided into 5 table-shaped bodies along the driving direction, high-viscosity rubber asphalt and crushed stone are used for repairing, the crushed stone adopts four specifications of coarse (35 mm-40 mm), medium (20 mm-25 mm), finer (10 mm-15 mm) and fine (5 mm-10 mm), and a layer of high-viscosity rubber asphalt (the dosage is beta) is sprayed on the bottom of the 3 rd part firstly 3 And/4) immediately spreading coarse-grained crushed stone (the dosage is alpha 31 ) Then, the parts 2, 3 and 4 are sprayed with a layer of high-viscosity rubber asphalt (the dosage is beta respectively 2 /3、β 3 /4、β 4 3) immediately spreading medium-sized crushed stone (the dosage is alpha respectively 22 、α 32 、α 42 ) Then, a layer of high viscosity rubber asphalt (the dosage is beta respectively) is sprayed on 5 parts 1 /2、β 2 /3、β 3 /4、β 4 /3、β 5 And/2) immediately spreading crushed stone with smaller particle diameter (the dosage is alpha respectively 13 、α 23 、α 33 、α 43 、α 53 ) Finally, 5 parts are sprayed with a layer of high-viscosity rubber asphalt (the dosage is beta respectively 1 /2、β 2 /3、β 3 /4、β 4 /3、β 5 And/2) immediately spreading fine-grained gravels (the dosage is alpha respectively 14 、α 24 、α 34 、α 44 、α 54 ) Ensuring that the 3 rd part is sprayed with four layers of asphalt and four layers of broken stone; sprinkling three layers of asphalt and three layers of gravels on the parts 2 and 4; and (3) sprinkling two layers of asphalt and two layers of gravels on the 1 st part and the 5 th part. And gradient sprinkling cloth is formed, so that resource waste is avoided.
Step five: and (3) performing deflection detection by using a drop hammer deflection instrument, wherein the deflection value is less than or equal to 1mm, then parking a heavy truck at the position, deviating from the driving direction by 200m, of the region, starting the heavy truck to advance at the speed of 30km/h, performing braking operation when the heavy truck reaches the starting point of the region, performing starting operation after stopping completely, returning to the starting position of the truck, and repeating the operation for 20 times, wherein broken stones are loose, and secondary reinforcement is needed.
Step six: heating the area to 120 ℃ by using a microwave heating vehicle, improving the cohesiveness and fluidity between asphalt and crushed stone, manually scattering a high-viscosity asphalt film with the thickness of 1mm, leveling and paving the area by using crushed stone with the diameter of 0-2mm, vibrating and rolling the area back and forth for 2-4 times by using a double-steel-wheel road roller, and finally rolling the area back and forth for 3-5 times by using a rubber-wheel road roller. The purpose is to carry out secondary compaction to this region, improves the bulk strength and the bearing capacity of structure. And after the reinforcement is finished, repeating the fifth step, and finishing the repairing of the ruts if the ruts are qualified.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. A gradient sprinkling type intersection rut repairing method is characterized by comprising the following repairing steps:
step one: cleaning the inside of a rut;
step two: measuring all tracks at the intersection by using a line laser track measuring instrument;
step three: classifying all ruts;
step four: customizing different gradient repair methods for different levels of ruts;
step five: detecting an original rut damage area;
step six: performing secondary reinforcement repair on the area which does not pass the test, and repeating the fifth step until all the areas pass the test;
the specific operation steps of the first step are as follows: firstly, using a pavement microwave maintenance vehicle to dry residual moisture in and around a rut; secondly, using a blower to blow away sundries and dust in the ruts;
the data to be measured in the second step are as follows: a rut cross-sectional view, a rut total length, and a rut depth and width throughout;
the grading scheme in the third step comprises the following specific contents:
when the maximum groove depth of the ruts is smaller than 15mm, the ruts are primary ruts; when the maximum groove depth of the ruts is more than or equal to 15mm and less than 30mm, the ruts are secondary ruts; when the maximum groove depth of the ruts is more than or equal to 30mm and less than 45mm, the ruts are three-stage ruts; when the maximum groove depth of the ruts is more than or equal to 45mm, the ruts are four-stage ruts;
the gradient repair method in the fourth step comprises the following specific contents:
the rut sections were fitted using a sine function and the cross-sectional area at different depth positions i (numbered 0, 1, starting from the rut starting point) at the rut bottom was calculated as follows:
wherein S is i Cross-sectional area in mm at different depth locations i 2 Wherein S is 0 Is the cross-sectional area at the start of the rut; a, a i Depth in mm at position i; t is t i -maximum width of the rut section at position i in mm;
equally dividing the rut into n table-shaped bodies according to the length along the driving direction, starting from the rut starting point, numbering 1,2 and n, wherein the volume calculation formula of each table-shaped body is as follows:
wherein, l-rank, l=1, 2, 3, 4; v (V) m -volume of mth bench body in mm 3 M=1, 2, n; l-length of ruts, unit m; s is S m -bottom surface area of mth bench body in mm 2 ；S m-1 -top surface area of mth mesa body in mm 2 ；
B 1 : when the rut is a primary rut, the rut is equally divided into 2 table bodies along the driving direction, and the high-viscosity rubber asphalt mixture is used for repairing, so that the rubber is high in viscosityThe volume and the dosage of the asphalt mixture are as follows
B 2 : when the rut is a secondary rut, the rut is equally divided into 3 table-shaped bodies along the driving direction, high-viscosity rubber asphalt and crushed stone are used for repairing, the crushed stone adopts two specifications of 10mm-15mm coarse grain size and 5mm-10mm fine grain size, a layer of high-viscosity rubber asphalt is sprayed on the bottom of the 2 nd part, and the dosage is beta 2 And/2, immediately thereafter, spreading coarse-grained crushed stone, an amount of alpha 21 Then spraying a layer of high-viscosity rubber asphalt on 3 parts, wherein the dosage is beta respectively 1 、β 2 /2、β 3 Immediately thereafter, finely divided crushed stone is filled in an amount of alpha 12 、α 22 、α 32 The calculation of the high-viscosity rubber asphalt dosage and the crushed stone grain size dosage meets the following formulas,
(1) When m=1, 3,α m2 ＝V m ；
(2) When m=2, the number of the groups,α m1 +α m2 ＝V m ，/>
wherein beta is m The amount of high-viscosity rubber asphalt required for the mth bench body, in mm 3 The method comprises the steps of carrying out a first treatment on the surface of the Lambda-high viscosity rubber asphalt spreading amount per mm 3 /mm 2 ；α m1 The amount of coarse-grain-diameter crushed stone required for the mth bench body in mm 3 ；α m2 The amount of fine-particle-size crushed stone required for the mth bench body in mm 3 ；-bulk density of coarse-diameter crushed stone measured in laboratory; ρ 1 Laboratory testing of coarse-grain diameter crushed stonesThe obtained compact density;
B 3 : when the rut is three-level rut, the rut is equally divided into 4 table bodies along the driving direction, high-viscosity rubber asphalt and crushed stone are used for repairing, the crushed stone adopts three specifications of 25mm-30mm coarse grain size, 15mm-20mm medium grain size and 5mm-10mm fine grain size, and firstly, the bottoms of the 2 nd and the 3 rd parts are sprayed with a layer of high-viscosity rubber asphalt with the dosage of beta respectively 2 /3、β 3 And 3, immediately spreading coarse grain, crushing stone, and the dosage is alpha respectively 21 、α 31 Then 4 parts are sprayed with a layer of high-viscosity rubber asphalt with the dosage of beta respectively 1 /2、β 2 /3、β 3 /3、β 4 And 2, immediately spreading medium-grain-size gravels with the dosage of alpha respectively 12 、α 22 、α 32 、α 42 Finally, 4 parts are sprayed with a layer of high-viscosity rubber asphalt with the dosage of beta respectively 1 /2、β 2 /3、β 3 /3、β 4 And 2, immediately spreading crushed stone with fine particle size with the dosage of alpha respectively 13 、α 23 、α 33 、α 43 The calculation of the high-viscosity rubber asphalt dosage and the crushed stone grain size dosage meets the following formulas,
(1) When m=1, 4,α m2 +α m3 ＝V m ，/>
(2) When m=2, 3,α m1 +α m2 +α m3 ＝V m ，
wherein alpha is m2 -mth bench body stationThe required medium-grain diameter crushed stone dosage is in mm 3 ；α m3 The amount of fine-particle-size crushed stone required for the mth bench body in mm 3 ；-bulk density of medium-diameter crushed stone measured in laboratory; ρ 2 -the dense density of medium-diameter crushed stones measured in the laboratory;
B 4 : when the rut is a four-level rut, the rut is equally divided into 5 table bodies along the driving direction, high-viscosity rubber asphalt and gravels are used for repairing the rut, the gravels adopt four specifications of coarse particle size of 35mm-40mm, medium particle size of 20mm-25mm, finer particle size of 10mm-15mm and fine particle size of 5mm-10mm, a layer of high-viscosity rubber asphalt is sprayed on the bottom of the 3 rd part firstly, and the dosage is beta 3 And/4, immediately spreading coarse grain, crushing stone with alpha 31 Then spraying a layer of high-viscosity rubber asphalt on the parts 2, 3 and 4, wherein the dosage is beta respectively 2 /3、β 3 /4、β 4 And 3, immediately spreading medium-grain-size gravels with the dosage of alpha respectively 22 、α 32 、α 42 Then spraying a layer of high-viscosity rubber asphalt on 5 parts, the dosage of the high-viscosity rubber asphalt is beta respectively 1 /2、β 2 /3、β 3 /4、β 4 /3、β 5 And 2, immediately spreading crushed stone with smaller particle diameter, wherein the dosage is alpha respectively 13 、α 23 、α 33 、α 43 、α 53 Finally, spraying a layer of high-viscosity rubber asphalt on 5 parts with the dosage of beta respectively 1 /2、β 2 /3、β 3 /4、β 4 /3、β 5 And 2, immediately spreading crushed stone with fine particle size with the dosage of alpha respectively 14 、α 24 、α 34 、α 44 、α 54 The calculation of the high-viscosity rubber asphalt dosage and the crushed stone grain size dosage meets the following formulas,
(1) When m=3, the number of the groups,α m1 +α m2 +α m3 +α m4 ＝V m ，
(2) When m=2, 4,α m2 +α m3 +α m4 ＝V m ，
(3) When m=1, 5,α m3 +α m4 ＝V m ，/>
wherein alpha is m3 The amount of finer-particle-size crushed stone required for the mth bench body in mm 3 ；α m4 The amount of fine-particle-size crushed stone required for the mth bench body in mm 3 ；-bulk density of finer-particle size crushed stone measured in laboratory; ρ 3 -the dense density of finer diameter crushed stone measured in laboratory;
after the rut is repaired, vibrating and rolling the rut for 4-6 times back and forth in a repairing area by using a double-steel-wheel road roller, and finally rolling the rut for 6-8 times back and forth in the repairing area by using a rubber-wheel road roller;
the fifth specific content of the step is as follows: firstly, performing deflection detection by using a drop hammer deflection instrument, wherein a deflection value smaller than or equal to 1mm is regarded as qualified, and a deflection value larger than 1mm is regarded as unqualified; for the area passing through deflection detection, parking a heavy truck in the area at a position 200m away from the driving direction, starting the heavy truck to advance at a speed of 30km/h, performing braking operation when the heavy truck reaches the starting point of the area, stopping completely, then performing starting operation, returning to the starting position of the truck, repeating the operation for 20 times, and observing whether broken stone loosening occurs in the area, if broken stone loosening occurs, determining that the broken stone loosening is unqualified, otherwise, determining that the broken stone loosening is qualified;
the sixth reinforcement repairing method comprises the following steps: firstly, heating a repairing area to 120 ℃ by using a microwave heating vehicle, manually scattering a high-viscosity asphalt film with the thickness of 1mm, leveling and spreading the repairing area with crushed stone with the diameter of 0-2mm, then vibrating and rolling the repairing area back and forth for 2-4 times by using a double-steel-wheel road roller, and finally rolling the repairing area back and forth for 3-5 times by using a rubber-wheel road roller.
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| JP2003064608A (en) * | 2001-08-27 | 2003-03-05 | Hisashi Sudo | Repairing method of paved road surface using adjusting block |
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| CN112878135A (en) * | 2021-03-24 | 2021-06-01 | 合肥工业大学 | Intersection anti-rutting road surface deformation judgment and construction method based on ground penetrating radar |
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| JP2003064608A (en) * | 2001-08-27 | 2003-03-05 | Hisashi Sudo | Repairing method of paved road surface using adjusting block |
| CN102704366A (en) * | 2012-02-01 | 2012-10-03 | 华南理工大学 | High-performance rubberized asphalt composite seal coat and construction method thereof |
| CN108710730A (en) * | 2018-04-28 | 2018-10-26 | 东南大学 | Track cross section type identification based on multiple spot detection data and index extraction method |
| CN110306413A (en) * | 2018-11-30 | 2019-10-08 | 武汉滨湖电子有限责任公司 | A kind of high-precision track measuring device and measuring method based on monocular |
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