CN108375511A - Pavement structure parameter acquiring method and system, storage medium and equipment - Google Patents
Pavement structure parameter acquiring method and system, storage medium and equipment Download PDFInfo
- Publication number
- CN108375511A CN108375511A CN201810146282.4A CN201810146282A CN108375511A CN 108375511 A CN108375511 A CN 108375511A CN 201810146282 A CN201810146282 A CN 201810146282A CN 108375511 A CN108375511 A CN 108375511A
- Authority
- CN
- China
- Prior art keywords
- parameter
- deflection basin
- pavement structure
- actual measurement
- basin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The present invention relates to a kind of pavement structure parameter acquiring method and system, computer storage media and equipment, it is related to pavement structure technical field, wherein method includes obtaining the actual measurement deflection basin on road surface, the corresponding actual measurement deflection basin parameter of actual measurement deflection basin is determined according to preset deflection basin parameter model, is obtained and the actual measurement associated actual measurement pavement structure parameter of deflection basin parameter according to the theoretical deflection basin parameter on preset road surface and the incidence relation of pavement structure parameter.Said program is in obtaining pavement structure parametric procedure, the corresponding deflection basin parameter of actual measurement deflection basin is determined by deflection basin parameter model, and according to the incidence relation of theoretical deflection basin parameter and pavement structure parameter, determine the corresponding pavement structure parameter of actual measurement deflection basin parameter, the incidence relation of deflection basin parameter and pavement structure parameter is fully considered, and the corresponding pavement structure parameter of actual measurement deflection basin parameter is obtained using the incidence relation, improve the accuracy for obtaining pavement structure parameter.
Description
Technical field
The present invention relates to pavement structure technical field, more particularly to a kind of pavement structure parameter acquiring method and system,
Storage medium and equipment.
Background technology
Drop hammer deflection meter (Falling Weight Deflectometer, FWD) is current road state-of-the-art in the world
One of surface intensity non-destructive detecting device.When detecting pavement strength using FWD, pass through the flexure that will be measured at FWD different locations
Line can obtain the deflection basin on road surface to value successively, and pavement structure parameter can be calculated according to the FWD deflection basins of acquisition.
In the method for obtaining pavement structure parameter at present, the alternative manner under Layered elastic system is usually used, i.e., will
Pavement structure regards the elastic system being made of from top to bottom several elastic layers and elastic half-space as, according to actual measurement deflection basin with
The difference of setting deflection basin is modified iteration, until meeting iterations, then it is assumed that calculate pavement structure parameter.
However, by the pavement structure parameter acquiring method used at present, the pavement structure parameter and actual result of acquisition
There are larger difference, the accuracy that this method obtains pavement structure parameter is low.
Invention content
Based on this, it is necessary to for above-mentioned pavement structure parameter acquiring method there are the low technical problem of accuracy, provide
A kind of pavement structure parameter acquiring method and system, computer storage media and equipment.
A kind of pavement structure parameter acquiring method, includes the following steps：
Obtain the actual measurement deflection basin on road surface；
The corresponding actual measurement deflection basin parameter of the actual measurement deflection basin is determined according to preset deflection basin parameter model；
It is obtained and the actual measurement according to the theoretical deflection basin parameter on preset road surface and the incidence relation of pavement structure parameter
The associated actual measurement pavement structure parameter of deflection basin parameter.
Above-mentioned pavement structure parameter acquiring method passes through deflection basin parameter model in obtaining pavement structure parametric procedure
Determine the corresponding deflection basin parameter of deflection basin of road surface actual measurement, and according to the pass of theoretical deflection basin parameter and pavement structure parameter
Connection relationship determines the corresponding actual measurement pavement structure parameter of actual measurement deflection basin parameter, has fully considered that deflection basin parameter is tied with road surface
Incidence relation between structure parameter, and the corresponding pavement structure parameter of deflection basin parameter when surveying is obtained using the incidence relation,
Improve the accuracy for obtaining pavement structure parameter.
The building process of the incidence relation includes in one of the embodiments,：
Obtain and include the manifold of different pavement parameter, according to the manifold and preset mechanical model determine it is each not
The corresponding theory deflection basin with road surface structural parameters；
The corresponding theoretical deflection basin of each pavement structure parameter is obtained according to preset deflection basin parameter model to correspond to
Theoretical deflection basin parameter, according to the corresponding theoretical flexure of each pavement structure parameter of different pavement structure parameters and acquisition
Basin parameter builds the incidence relation.
The theoretical deflection basin on road surface is determined by the combination and preset mechanical model of different pavement parameter, to root
The theoretical deflection basin parameter on road surface is obtained according to deflection basin parameter model, and according to different pavement structure parameters and corresponds to acquisition
Incidence relation between the theoretical deflection basin parameter structure pavement structure parameter and theoretical deflection basin parameter on each road surface, overcomes biography
The problem of initial value need to be arranged in system method, and has fully considered the incidence relation between deflection basin parameter and pavement structure parameter, carry
The high accuracy for obtaining pavement structure parameter.
The pavement structure parameter acquiring method further includes in one of the embodiments,：
After obtaining the manifold comprising different pavement parameter, according to pavement structure parameter different in the manifold
Incidence relation between numerical value at deflection basin different location builds deflection basin parameter model.
By considering different pavement parameter to the differentia influence of deflection basin numerical value at different locations, pointedly structure
Deflection basin parameter model is built, so as to accurately obtain the theoretical or corresponding flexure of actual measurement deflection basin according to deflection basin parameter model
Basin parameter, and then pavement structure parameter is obtained using the deflection basin parameter, accuracy is high.
The building process of the incidence relation further includes in one of the embodiments,：
After determining the theoretical deflection basin on road surface, the theoretical deflection basin is fitted according to default correction function and is repaiied
Just；
The theory on the corresponding road surface of theoretical deflection basin on each road surface is obtained according to preset deflection basin parameter model
Deflection basin parameter builds the association according to the theoretical deflection basin parameter on different pavement structure parameters and each road surface of acquisition
The step of relationship includes：The theoretical deflection basin that revised each road surface is obtained according to preset deflection basin parameter model is corresponding
Revised theory deflection basin parameter builds the pass according to different pavement structure parameters and the revised theory deflection basin parameter of acquisition
Connection relationship.
Amendment is fitted to the theoretical deflection basin of acquisition by using default correction function, has fully considered theoretical road surface
The difference of mechanical structure and the practical mechanical structure in road surface makes the error smaller of the theoretical deflection basin of acquisition, is obtained to improve
The accuracy of pavement structure parameter.
The corresponding reality of the actual measurement deflection basin is determined according to preset deflection basin parameter model in one of the embodiments,
Survey deflection basin parameter the step of include：
Amendment is fitted to the actual measurement deflection basin according to default correction function, according to preset deflection basin parameter model
Determine the corresponding modified actual measurement deflection basin parameter of revised actual measurement deflection basin；
It is obtained and the actual measurement according to the theoretical deflection basin parameter on preset road surface and the incidence relation of pavement structure parameter
The step of deflection basin parameter associated actual measurement pavement structure parameter includes：According to the theoretical deflection basin parameter on preset road surface and road
The incidence relation of face structural parameters obtains and the modified associated actual measurement pavement structure parameter of actual measurement deflection basin parameter.
Amendment is fitted to actual measurement deflection basin by using default correction function, has fully considered road force when actual measurement
The difference of structure and theoretical road surface mechanical structure is learned, and then reduces the mistake of the actual measurement deflection basin and corresponding deflection basin parameter that obtain
Difference, to improve the accuracy for obtaining pavement structure parameter.
The pavement structure parameter acquiring method further includes in one of the embodiments,：
After acquisition with the associated actual measurement pavement structure parameter of the actual measurement deflection basin parameter, according to the actual measurement road surface
Structural parameters and preset mechanical model, which obtain, calculates deflection basin；
Error precision is obtained according to the calculating deflection basin and the actual measurement deflection basin, is preset if the error precision is less than
Precision threshold, then export the actual measurement pavement structure parameter.
Obtain the corresponding calculating deflection basin of actual measurement pavement structure parameter by preset mechanical model, when calculate deflection basin with
When surveying the error precision of deflection basin less than precision threshold, output actual measurement pavement structure parameter, to the actual measurement pavement structure of acquisition
Parameter carries out precision school inspection, it is ensured that the accuracy of the actual measurement pavement structure parameter of acquisition improves pavement structure parameter acquiring side
The reliability of method.
Error precision is being obtained according to the determining deflection basin and the actual measurement deflection basin in one of the embodiments,
After step, further include：
If the error precision is more than preset precision threshold, according to the error precision to the theoretical deflection basin with
The incidence relation of pavement structure parameter is modified.
When by being more than precision threshold in the error precision for calculating deflection basin and actual measurement deflection basin, according to error precision to reason
It is modified by deflection basin parameter and the incidence relation of pavement structure parameter, improves standard when obtaining actual measurement pavement structure parameter
True property, improves the reliability of pavement structure parameter acquiring method.
A kind of pavement structure parameter acquiring system, including：
Survey module, the actual measurement deflection basin for obtaining road surface；
Determining module, for determining the corresponding actual measurement flexure of the actual measurement deflection basin according to preset deflection basin parameter model
Basin parameter；
Acquisition module, for being obtained according to the theoretical deflection basin parameter and the incidence relation of pavement structure parameter on preset road surface
It takes and the associated actual measurement pavement structure parameter of the actual measurement deflection basin parameter.
Above-mentioned pavement structure parameter acquiring system obtains road in obtaining pavement structure parametric procedure by surveying module
The actual measurement deflection basin in face determines actual measurement deflection basin parameter using determining module by deflection basin parameter model, and by obtaining mould
Root tuber determines the corresponding actual measurement road surface of actual measurement deflection basin parameter according to the incidence relation of theoretical deflection basin parameter and pavement structure parameter
Structural parameters have been fully considered the incidence relation between deflection basin parameter and pavement structure parameter, and have been obtained using the incidence relation
The corresponding pavement structure parameter of deflection basin parameter when actual measurement improves the accuracy for obtaining pavement structure parameter.
A kind of computer storage media is stored thereon with computer program, when the computer program is executed by processor
Realize the pavement structure parameter acquiring method.
Above computer storage medium improves the standard for obtaining pavement structure parameter by the computer program of its storage
Exactness.
A kind of computer equipment, including memory, processor and storage can be run on a memory and on a processor
Computer program, the processor realize the pavement structure parameter acquiring method when executing described program.
Above computer equipment improves by the computer program run on the processor and obtains pavement structure ginseng
Several accuracy.
Description of the drawings
Fig. 1 is the applied environment figure of the pavement structure parameter acquiring method of one embodiment；
Fig. 2 is FWD deflection basin curve schematic diagrames；
Fig. 3 is the pavement structure parameter acquiring method flow chart of one embodiment；
Fig. 4 is bituminous paving road structure Layered elastic system mechanical model schematic diagram；
Fig. 5 is the relation schematic diagram of face layer modulus and deflection basin；
Fig. 6 is the relation schematic diagram of base course modulus and deflection basin；
Fig. 7 is the relation schematic diagram of underlayment modulus and deflection basin；
Fig. 8 is the relation schematic diagram of soil modulus and deflection basin；
Fig. 9 is the FWD deflection basin matched curve schematic diagrames of sigmoid functions；
Figure 10 is the pavement structure parameter acquiring method flow chart of another embodiment；
Figure 11 is the pavement structure parameter acquiring system structure diagram of one embodiment.
Specific implementation mode
Technical scheme of the present invention is described in detail with reference to specific embodiment and attached drawing, so that it is more
It is clear.
It is as shown in Figure 1 the applied environment figure of the pavement structure parameter acquiring method of one embodiment.Pavement structure parameter
Acquisition methods can be applied in the system for obtaining pavement structure parameter, and referring to Fig.1, which can be drop hammer deflection meter S10, should
Drop hammer deflection meter S10 includes processor S101, load generating means S102 and sensor S103, wherein load generating means
S102 is connected with processor S101 and is used to generate load, and load generating means S102 may include dropping hammer and loading plate,
Middle sensor S103 be detect flexure device, sensor S103 be connected with processor S101 and be used for deflection basin into
Row detection, and processor S101 carries out operation for road pavement or the relevant parameter of flexure, by using above-mentioned drop hammer type flexure
Instrument 10 can obtain corresponding deflection basin, and with reference to figure 2, Fig. 2 is the FWD deflection basin curve schematic diagrames of one embodiment, wherein S201
For drop hammer deflection meter, S202 is the face layer of pavement structure, and S203 is the base of pavement structure, and S204 is the base of pavement structure
Layer, S205 are the base course of pavement structure, and S206 is deflection basin, and as seen from the figure, drop hammer deflection meter S201 is on different road surfaces
Corresponding deflection basin S206 is generated in structure sheaf, according to deflection basin S206 can obtain with the relevant information of pavement structure, thus have
Necessity analyzes deflection basin S206.
As shown in figure 3, the embodiment of the present invention provides a kind of pavement structure parameter acquiring method, this method is to be applied to drop hammer
It is illustrated in formula benkelman beams deflectometer, it may include following steps：
Step S301：Obtain the actual measurement deflection basin on road surface；
Step S302：The actual measurement deflection basin for obtaining road surface, the actual measurement flexure is determined according to the deflection basin parameter model
The corresponding actual measurement deflection basin parameter of basin；
Step S303：According to the incidence relation of the theoretical deflection basin parameter on preset road surface and pavement structure parameter obtain with
The associated actual measurement pavement structure parameter of actual measurement deflection basin parameter.
Before step S301, the theoretical deflection basin on road surface can be predefined, in one embodiment, is obtained comprising difference
The manifold of pavement structure parameter, and determine that each different pavement parameter is corresponding according to the manifold and preset mechanical model
Theoretical deflection basin, i.e., the deflection basin on different type road surface under standard load effect.Pass through the combination of different pavement parameter
And preset mechanical model determines the theoretical deflection basin on road surface, is determined that corresponding road surface theory is curved when to for different road surfaces
Heavy basin, the theoretical deflection basin and its corresponding deflection basin parameter on wherein road surface correspond to large database concept with the manifold, are not necessarily to
Artificial setting initial value, overcomes the problem of road surface initial parameter value is arranged in conventional method, to improve acquisition pavement structure
The accuracy of parameter.Wherein, preset mechanical model can be laminated resilient mechanical model, finite element or discrete element mechanical model etc.
Mechanical model is illustrated by laminated resilient mechanical model of preset mechanical model below to keep scheme relatively sharp, is led to
Layered elastic system setting theoretical road surface structure is crossed, the arbitrary theoretical construct number of plies, phase can be correspondingly arranged according to practical pavement structure
Than traditional technology, most multipotency realizes the inverse of four layers of pavement structure, and the situation that inverse result precision is low, improves and obtains road
The accuracy and reasonability of face structural parameters, applicability higher.
To keep the concept of above-mentioned Layered elastic system mechanical model apparent, Fig. 4 is can refer to, Fig. 4 is bituminous paving roadbed
Structure Layered elastic system mechanical model schematic diagram, wherein ignoring each structural material anisotropy of bituminous paving, non-homogeneous etc.
It influences, asphalt pavement structure is reduced to ideal structural model, wherein HiThickness, E for road surface structare layeriFor the modulus of resilience,
μiFor Poisson's ratio.In the ideal structural model, asphalt pavement structure is divided into many different-thickness H from top to bottomiHorizontal junction
Each layer of structure layer, wherein bituminous paving is horizontally oriented unlimited extension, vertical limited, and roadbed is semi-infinite body, base course water
Square infinitely extend to vertically downward direction；Wherein, each layer of bituminous paving roadbed is from completely continuous, uniform respectively to same
Property perfect elastic material composition, modulus of resilience E can be used at this timeiWith Poisson's ratio μiParameter characterizes each structure sheaf of bituminous paving
Elastic parameter；Closely coupled between each structure sheaf of bituminous paving, the stress and displacement on each layer interface are completely continuous, and interlayer connects
The state of touching is to continuously contact with completely or each structure interlayer vertical stress and displacement are completely continuous, but each structure interlayer is not deposited
In frictional resistance, contact status between layers are to be completely smooth；Infinity, structure basecoat exist each layer of bituminous paving in the horizontal direction
Stress, deformation and the displacement of unlimited depths are negligible.
Similarly, deflection basin parameter model can be pre-established before step S301, in one embodiment, pass through acquisition
The manifold for including different pavement parameter, according to number at pavement structure parameter different in the manifold and deflection basin different location
Incidence relation between value considers different pavement parameter to the differentia influence of deflection basin numerical value at different locations, needle
Deflection basin parameter model is established to property, it is corresponding curved so as to obtain theoretical deflection basin according to structure deflection basin parameter model
Heavy basin parameter.Wherein, the specific targets of deflection basin parameter, that is, deflection basin reflect the physical mechanics information of pavement structure, commonly
Deflection basin parameter model includes：Deflection value Di(i=1~9), flexure is than index DRi=Di+1/Di(i=1~8), flexure poor index
DDi=D1-Di+1(i=1~8), curvature class index CIi=Di+1-Di+2(i=1~7), form factor index Fi=(Di-Di+2)/
Di+1(i=1~7), slope class index Si=(Di-Di+2)/(ri+2-ri) (i=1~7), area class index AREA1=6 (D1+2D3
+2D5+D6)/D1、AREA2=6 (D3+2D4+D5)/D1、AREA3=6 (D5+D6+D7)/D1、AREA4=6 (D1+D3)/2D1、AREA5
=(D6+D7)/D1And AREA6=(5D1-2D3-2D5-D6)/2。
To make, according to the incidence relation between numerical value at different pavement parameter and deflection basin different location, to build flexure
The process of basin parameter model is apparent, provides such as Fig. 5 to road surface structare layer modulus shown in Fig. 8 and the signal of the relationship of deflection basin
Figure, wherein Dd are the decrement of deflection value, and W is the distance apart from load center, and Eac is face layer modulus, and Eb is base course modulus,
Esb is underlayment modulus, and Esg is soil modulus.As seen from the figure, the influence of face layer modulus Eac road pavement deflection values is with measuring point
Increase away from load centre distance W and reduce, wherein face floor modulus Eac adjust the distance load center distance W in the areas 0~33cm
Interior flexure influence degree is maximum, and the change rate of deflection value reduction amount Dd is also maximum, and the distance W at load center of adjusting the distance is
Flexure influence degree is very small after 150cm, and both less than the 5% of deflection value decrement；Base course modulus Eb road pavement deflection values
Influence reduces with increase of the measuring point away from load centre distance, wherein the adjust the distance distance W at load center of base course modulus Eb exist
Flexure influence degree in the sections 0~81cm is maximum, and the amplitude of variation of deflection value reduction amount Dd is also maximum, load center of adjusting the distance
Distance W after 81cm flexure influence degree it is very small, deflection value decrement Dd is both less than 3%；Underlayment modulus Esb satisfies the need
The influence degree of face deflection basin is less than the influence that face layer modulus Eac and base course modulus Eb are generated on the whole, apart from load center
Distance W in the sections 0~20cm, underlayment modulus Esb is to the influence degree of deflection value as measuring point is away from load centre distance
Increase and increase, and in sections of the distance W after 20~127cm apart from load center, the influence of underlayment modulus Esb
Reduce with increase of the measuring point away from load centre distance Dd, and finally levels off to zero；Soil modulus Esg road pavement deflection basins
Influence degree is much larger than other structures layer modulus, and as distance of the measuring point away from load center Dd increases and increases, lotus of adjusting the distance
Deflection value influences of the distance W at load center after 127cm tends towards stability.As shown in the figure, for different road surface structare layers,
When modulus increases same percentage, the deflection value decrement Dd at load center is respectively present different variation degree, and flexure
The influence curve of basin increases more and more closely with modulus, i.e., the change rate with deflection value decrement Db at position is with modulus
Increase and reduce, after the modulus of each structure sheaf reaches certain value, deflection value becomes will be in stabilization.According to pavement layer modulus and flexure
The numerical value the change of divergence of basin at different locations, you can build corresponding deflection basin parameter model, and on this basis, it is contemplated that
Numerical value differentia influence of the different pavement structure parameters to deflection basin at different locations, includes the parameter of each type of deflection basin
It is influenced by different pavement parameter, establishes corresponding deflection basin parameter model.
Different pavement parameter pair is being determined according to the combination and laminated resilient mechanical model of different pavement parameter
After the theoretical deflection basin answered, it is curved the corresponding theory of each pavement structure parameter can be obtained according to the deflection basin parameter model of structure
The theoretical deflection basin parameter on the heavy corresponding road surface of basin, and according to each theoretical deflection basin of different pavement structure parameters and acquisition
Parameter builds the incidence relation of the theoretical deflection basin parameter and pavement structure parameter on road surface, i.e., on the basis of big data analysis,
For the large data sets of the different pavement of composition, theoretical flexure of the corresponding pavement structure parameter in analysis road surface to the road surface
Various influences of basin parameter, to build the incidence relation.By after determining the theoretical deflection basin on road surface, according to structure
Deflection basin parameter model obtain the theoretical deflection basin parameter on road surface, and according to different pavement structure parameters and corresponding obtain
Incidence relation between the theoretical deflection basin parameter structure pavement structure parameter and theoretical deflection basin parameter on each road surface, both overcame
The problems such as initial value need to be arranged in conventional method, and there are the more solutions and locally optimal solution of nonlinear optimization, and fully considered curved
Heavy incidence relation between basin parameter and pavement structure parameter improves the accuracy for obtaining pavement structure parameter.
Mechanics situation based on practical road surface not fully meets ideal Layered elastic system, therefore, on structure road surface
Theoretical deflection basin parameter and pavement structure parameter incidence relation when, it is necessary to according to default correction function to the theory of acquisition
Deflection basin is fitted amendment, and corresponding revised theory deflection basin parameter, Jin Ergen are obtained according to revised theoretical deflection basin
The incidence relation is rebuild according to the revised theory deflection basin parameter of different pavement structure parameters and acquisition；Similarly, exist
After obtaining actual measurement deflection basin, amendment, and then basis can be fitted to the actual measurement deflection basin of acquisition according to default correction function
Revised actual measurement deflection basin calculates corresponding actual measurement deflection basin parameter.By considering road surface mechanical structure and theoretical road surface mechanics
The difference of structure, and amendment is fitted to the theoretical deflection basin of acquisition and actual measurement deflection basin using correction function is preset, make to obtain
Error smaller between the theoretical deflection basin that takes and actual measurement deflection basin and actual numerical value, improve the theoretical deflection basin parameter of structure with
The accuracy of the incidence relation of pavement structure parameter, to improve the accuracy for obtaining pavement structure parameter.Wherein, can pass through
Sigmoid curves, probability curve, long hill curve, sine curve, second-degree parabola, circular curve, exponential curve, secondary fraction are bent
The function pairs deflection basin curve such as line and cubic curve is fitted amendment.
In one embodiment, true according to the manifold comprising different pavement parameter of acquisition and preset mechanical model
The theoretical deflection basin on fixed each road surface, and be fitted using each theoretical deflection basin of sigmoid function pairs, i.e., to flexure pelvic curvature
Line is fitted amendment, and the corresponding theoretical deflection basin ginseng of revised road surface theory deflection basin is obtained according to deflection basin parameter model
Number, and then pavement structure parameter is built according to the corresponding revised theory deflection basin parameter of different pavement parameter and each road surface
With the incidence relation of road surface theory deflection basin；Similarly, after the actual measurement deflection basin for obtaining road surface, using sigmoid functions
Amendment is fitted to actual measurement deflection basin, and then the corresponding reality of revised actual measurement deflection basin is obtained according to deflection basin parameter model
Survey deflection basin parameter.Wherein, by using sigmoid functions, fully considered that drop hammer deflection meter is limited by loading plate, nothing
Method acquires the factor of the pavement deflection value between certain distance, is corrected by being fitted, will be reduced to the flexure pelvic curvature of recessed (convex) shape
Line is reduced to actual sigmoid curve, further increases the modified effect of fitting, improves accuracy.Wherein sigmoid function pairs are curved
The model of fit that heavy pelvic curvature line is fitted is：
Wherein, y is pavement deflection value, and x is the position different away from load center, and a, b and c are different parameters.To make to lead to
It crosses sigmoid function pair deflection basin curves to be fitted, the effect for obtaining corresponding matched curve is apparent, provides such as table 1
Shown in survey deflection basin data and sigmoid functions as shown in Figure 9 FWD deflection basin matched curve schematic diagrames, according to table 1
Data and Fig. 9 in matched curve, can verify and modified effect is fitted by sigmoid functions, it will be apparent that, fitting
Effect is good.Wherein, it in calculating process, can be fitted by 1stOpt1.5 programs, be as shown in table 1 one embodiment
Survey deflection basin：
| Sensor number | D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 |
| Away from centre distance/cm | 0 | 20 | 30 | 60 | 90 | 120 | 150 | 180 | 210 |
| D/ μm of deflection value | 117 | 93 | 85 | 72 | 54 | 40 | 34 | 24 | 21 |
It is whether accurate that the actual measurement pavement structure parameter taken is seized for school, in one embodiment, is being obtained and actual measurement flexure
After the actual measurement pavement structure parameter of basin parameter association, it can be obtained according to the actual measurement pavement structure parameter and preset mechanical model
Deflection basin is calculated, and then the calculating deflection basin is compared with actual measurement deflection basin, obtains error precision.By curved according to calculating
Heavy basin and the error precision surveyed between deflection basin judge whether actual measurement pavement structure parameter is accurate, improves pavement structure parameter
The reliability of acquisition methods.Wherein, the error precision between both above-mentioned deflection basin is calculated using mean square error, if obtain
Error precision is less than preset precision threshold, then confirms that actual measurement pavement structure parameter meets computational accuracy requirement, can directly export
Pavement structure parameter；If the error precision obtained is more than preset precision threshold, according to the multigroup of the error precision or acquisition
The corresponding error precision of actual measurement pavement structure parameter is modified theoretical deflection basin and the incidence relation of pavement structure parameter, i.e.,
The road surface theory deflection basin parameter that builds in advance and the relational model of pavement structure parameter are not fixed model, but according to comprising
What the big data manifold of different pavement parameter and the big data manifold of corresponding road surface theory deflection basin parameter were built, it is obtaining
When taking and determining that actual measurement pavement structure parameter is unsatisfactory for required precision, which is corrected according to error precision, i.e., is being counted greatly
According to the incidence relation on analysis foundation, is rebuild, revised actual measurement pavement structure parameter correspondence is obtained to repeat step
Calculating deflection basin, until error precision meets the requirements.The accuracy for ensuring the actual measurement pavement structure parameter of acquisition, overcomes biography
The problem of road surface initial parameter value need to be arranged in system method, and is closed by using the random selection adjustment in direction association of big data method
System, compared to the mode of conventional iterative method only correction result, the problem of overcoming local convergence, determination is optimal under gamut
Solution, to improve the reliability of pavement structure parameter acquiring method.
To keep technical scheme of the present invention apparent, one embodiment pavement structure parameter acquiring as shown in Figure 10 is provided
Method flow diagram, including：
Step S1001：According to the manifold comprising different pavement parameter and Layered elastic system mechanical model, obtain each
The theoretical deflection basin on a road surface；Calculate road surface of the corresponding road surface of each different pavement parameter under standard load effect
Deflection basin, the theoretical deflection basin that can be obtained by sigmoid function pairs are fitted amendment；
Step S1002：The corresponding theoretical deflection basin parameter of each theoretical deflection basin is determined according to deflection basin parameter model；Its
It is middle that deflection basin parameter model is built according to the incidence relation of pavement structure parameter and deflection basin different location numerical value；
Step S1003：According to different pavement parameter and corresponding each road surface theory deflection basin parameter, road surface is built
Incidence relation between structural parameters and theoretical deflection basin parameter；
Step S1004：Actual measurement deflection basin is obtained, determines that the corresponding actual measurement of actual measurement deflection basin is curved according to deflection basin parameter model
Heavy basin parameter；Deflection basin is surveyed by sigmoid function pairs and is fitted amendment, and then is obtained corresponding correct and surveyed deflection basin
Corresponding actual measurement deflection basin parameter；
Step S1005：It obtains and surveys according to the theoretical deflection basin parameter on road surface and the incidence relation of pavement structure parameter
The associated actual measurement pavement structure parameter of deflection basin parameter；
Step S1006：According to actual measurement pavement structure parameter and Layered elastic system mechanical model, obtains and calculate deflection basin；
Step S1007：Comparing calculation deflection basin and actual measurement deflection basin obtain error precision and judge to survey pavement structure ginseng
Several accuracys.It is obtained by mean square error and calculates deflection basin and survey the error precision between deflection basin, if error precision is less than
Precision threshold, it is determined that actual measurement pavement structure parameter is accurate parameter, output actual measurement pavement structure parameter, if error precision is big
In precision threshold, then it is modified according to incidence relation of the error precision between theoretical deflection basin parameter and pavement structure parameter,
And step S1004-S1006 is re-executed, and until error precision is met the requirements, current actual measurement pavement structure parameter is exported, it can be same
When obtain the corresponding pavement structure parameter of multigroup actual measurement deflection basin, determine each actual measurement pavement structure parameter through the above steps
Precision meets preset requirement, that is, thinks the process for completing to obtain pavement structure parameter.Wherein precision threshold can be according to practical feelings
Depending on condition.
By the pavement structure parameter acquiring method of any one above-mentioned embodiment, pavement structure parametric procedure is being obtained
In, the corresponding deflection basin parameter of deflection basin of road surface actual measurement is determined by deflection basin parameter model, and according to theoretical deflection basin
The incidence relation of parameter and pavement structure parameter determines the corresponding actual measurement pavement structure parameter of actual measurement deflection basin parameter, fully examines
The incidence relation between deflection basin parameter and pavement structure parameter is considered, and has obtained deflection basin when surveying using the incidence relation and join
The corresponding pavement structure parameter of number, improves the accuracy for obtaining pavement structure parameter.
To make the effect of technical scheme of the present invention become apparent from, with regard to the technical program in the proving ring for having different pavement
The efficiency of inverse process of road pavement structural parameters is illustrated on road.
Wherein, the part circuit structure of the test track and the corresponding surface layer structure type of each circuit structure, base
Structure type, underlayment structure type and soil matrix type are as shown in table 2：
Wherein, circuit structure STR is asphalt concrete pavement structure, and circuit structure YB-STR is cement-concrete road
Face structure.It uses technical solution of the present invention road pavement structural parameters in the case where class of loading is 50KN to carry out inverting, obtains
Deflection basin, actual measurement pavement structure parameter calculating deflection basin corresponding with actual measurement pavement structure parameter are surveyed, and uses mean square error
Inversion accuracy is set smaller than 10%, i.e., is combined by the road surface structare layer modulus that inverting obtains by norm controlling accuracy rating,
It calculates deflection basin and is less than 10% with the whole difference for surveying deflection basin, and the inversion result of acquisition is as shown in table 3：
It can be seen that for different pavement structures using the technical program, obtained inversion accuracy is equal
Within 10%, inversion result is reasonable and tallies with the actual situation, i.e., the pavement structure parameter provided through the embodiment of the present invention obtains
Method is taken, has fully considered the incidence relation between deflection basin parameter and pavement structure parameter, and obtain in fact using the incidence relation
The corresponding pavement structure parameter of deflection basin parameter when survey, improves the accuracy for obtaining pavement structure parameter, and inversion result closes
Reason.
For the low problem of accuracy existing for conventional pav structural parameters acquiring technology, it there is a need to and a kind of road surface is provided
Structural parameters obtain system, and as shown in figure 11, which may include：
Survey module 1101, the actual measurement deflection basin for obtaining road surface；
Determining module 1102, for determining the corresponding actual measurement of the actual measurement deflection basin according to preset deflection basin parameter model
Deflection basin parameter；
Acquisition module 1103, for according to the theoretical deflection basin parameter on preset road surface and being associated with for pavement structure parameter
System obtains and the associated actual measurement pavement structure parameter of the actual measurement deflection basin parameter.
Wherein, actual measurement module 1101 can predefine the theoretical deflection basin on road surface, in one embodiment, survey module
1101 obtain and include the manifold of different pavement parameter, and are determined and each do not gone the same way according to the manifold and preset mechanical model
The corresponding theoretical deflection basin of face structural parameters, i.e., the deflection basin on different type road surface under standard load effect.Survey module
1101 determine the theoretical deflection basin on road surface by the combination and preset mechanical model of different pavement parameter, to for not
It is determined that corresponding road surface theory deflection basin, the theoretical deflection basin and its corresponding deflection basin parameter on wherein road surface are equal when with road surface
Large database concept is corresponded to the manifold, without artificial setting initial value, overcomes traditional technology setting road surface initial parameter value
The problem of, to improve the accuracy for obtaining pavement structure parameter.Wherein, preset mechanical model can be laminated resilient mechanics
The mechanical models such as model, finite element or discrete element mechanical model, to keep scheme relatively sharp, below with preset mechanical model
It is illustrated for laminated resilient mechanical model, theoretical road surface structure is arranged by Layered elastic system, actual measurement module 1101 can root
Factually border pavement structure is correspondingly arranged the arbitrary theoretical construct number of plies, anti-compared to traditional technology most multipotency four layers of pavement structure of realization
It calculates, and the situation that inverse result precision is low, improves the accuracy and reasonability for obtaining pavement structure parameter, applicability is more
It is high.
Similarly, actual measurement module 1101 can also pre-establish deflection basin parameter model, in one embodiment, survey module
1101 obtain the manifold for including different pavement parameter, different from deflection basin according to pavement structure parameter different in the manifold
Incidence relation at position between numerical value considers difference of the different pavement parameter to deflection basin numerical value at different locations
It influences, targetedly establishes deflection basin parameter model, so as to obtain theoretical deflection basin according to structure deflection basin parameter model
Corresponding deflection basin parameter.Wherein, the specific targets of deflection basin parameter, that is, deflection basin reflect the physical mechanics letter of pavement structure
Breath, common deflection basin parameter model include：Deflection value Di(i=1~9), flexure is than index DRi=Di+1/Di(i=1~8),
Flexure poor index DDi=D1-Di+1(i=1~8), curvature class index CIi=Di+1-Di+2(i=1~7), form factor index Fi
=(Di-Di+2)/Di+1(i=1~7), slope class index Si=(Di-Di+2)/(ri+2-ri) (i=1~7), area class index
AREA1=6 (D1+2D3+2D5+D6)/D1、AREA2=6 (D3+2D4+D5)/D1、AREA3=6 (D5+D6+D7)/D1、AREA4=6 (D1
+D3)/2D1、AREA5=(D6+D7)/D1And AREA6=(5D1-2D3-2D5-D6)/2。
Different pavement parameter pair is being determined according to the combination and laminated resilient mechanical model of different pavement parameter
After the theoretical deflection basin answered, actual measurement module 1101 can also obtain each pavement structure according to the deflection basin parameter model of structure and join
The theoretical deflection basin parameter on the corresponding road surface of the corresponding theory deflection basin of number, and according to different pavement structure parameters and acquisition
The incidence relation of the theoretical deflection basin parameter and pavement structure parameter on each theory deflection basin parameter structure road surface, i.e., in big data
On the basis of analysis, for the large data sets of the different pavement of composition, the corresponding pavement structure parameter in analysis road surface is to this
Various influences of the theoretical deflection basin parameter on road surface, to build the incidence relation.Road is being determined by surveying module 1101
After the theoretical deflection basin in face, the theoretical deflection basin parameter on road surface is obtained according to the deflection basin parameter model of structure, and according to not
The theoretical deflection basin parameter structure pavement structure parameter and theory of same pavement structure parameter and the corresponding each road surface obtained are curved
Incidence relation between heavy basin parameter, initial value need to be arranged by both having overcome traditional technology, and there are more solutions of nonlinear optimization and parts
The problems such as optimal solution, and fully considered the incidence relation between deflection basin parameter and pavement structure parameter, it improves and obtains road
The accuracy of face structural parameters.
Mechanics situation based on practical road surface not fully meets ideal Layered elastic system, therefore, on structure road surface
Theoretical deflection basin parameter and pavement structure parameter incidence relation when, actual measurement module 1101 can also be according to default correction function pair
The theoretical deflection basin of acquisition is fitted amendment, and obtaining corresponding revised theory deflection basin according to revised theoretical deflection basin joins
Number, and then the incidence relation is rebuild according to the revised theory deflection basin parameter of different pavement structure parameters and acquisition；
Similarly, actual measurement module 1101, can be according to default correction function to the actual measurement deflection basin of acquisition after obtaining actual measurement deflection basin
It is fitted amendment, and then corresponding actual measurement deflection basin parameter is calculated according to revised actual measurement deflection basin.By considering road surface
The difference of mechanical structure and theoretical road surface mechanical structure, and it is curved to the theoretical deflection basin of acquisition and actual measurement using correction function is preset
Heavy basin is fitted amendment, makes the error smaller between the theoretical deflection basin of acquisition and actual measurement deflection basin and actual numerical value, improves
The accuracy of the theoretical deflection basin parameter of structure and the incidence relation of pavement structure parameter obtains pavement structure ginseng to improve
Several accuracy.It wherein, can be bent by sigmoid curves, probability curve, long hill curve, sine curve, second-degree parabola, circle
The function pairs deflection basin curves such as line, exponential curve, secondary fraction curve and cubic curve are fitted amendment.
It is whether accurate that the actual measurement pavement structure parameter taken is seized for school, in one embodiment, is being obtained and actual measurement flexure
After the actual measurement pavement structure parameter of basin parameter association, acquisition module 1103 can be according to the actual measurement pavement structure parameter and preset
Mechanical model, which obtains, calculates deflection basin, and then the calculating deflection basin is compared with actual measurement deflection basin, obtains error precision.It is logical
It crosses and judges whether actual measurement pavement structure parameter is accurate, improves according to the error precision calculated between deflection basin and actual measurement deflection basin
The reliability of pavement structure parameter acquiring system.Wherein, the error between both above-mentioned deflection basin is calculated using mean square error
Precision confirms that actual measurement pavement structure parameter meets computational accuracy and wants if the error precision obtained is less than preset precision threshold
It asks, can directly export pavement structure parameter；If the error precision obtained is more than preset precision threshold, according to the error precision
Or the corresponding error precision of multigroup actual measurement pavement structure parameter obtained being associated with to theoretical deflection basin and pavement structure parameter
System is modified, i.e., the road surface theory deflection basin parameter built in advance and the relational model of pavement structure parameter are not stent
Type, but according to the big data of the big data manifold comprising different pavement parameter and corresponding road surface theory deflection basin parameter
Manifold structure, when obtaining and determining that actual measurement pavement structure parameter is unsatisfactory for required precision, which is corrected according to error precision
Connection relationship rebuilds the incidence relation that is, on the basis of big data analysis, to repeat to realize each functions of modules of this system,
The corresponding calculating deflection basin of revised actual measurement pavement structure parameter is obtained again, until error precision is met the requirements.It ensures
The accuracy of the actual measurement pavement structure parameter of acquisition, overcomes the problems, such as that road surface initial parameter value need to be arranged in traditional technology, and pass through
Adjustment in direction incidence relation is randomly choosed using big data method, compared to the mode of conventional iterative technology only correction result, gram
The problem of having taken local convergence determines optimal solution, to improve the reliable of pavement structure parameter acquiring system under gamut
Property.
The pavement structure parameter acquiring system of any one above-mentioned embodiment is led in obtaining pavement structure parametric procedure
The actual measurement deflection basin that actual measurement module 1101 obtains road surface is crossed, is determined and is surveyed by deflection basin parameter model using determining module 1102
Deflection basin parameter, and determined according to the incidence relation of theoretical deflection basin parameter and pavement structure parameter by acquisition module 1103
The corresponding actual measurement pavement structure parameter of deflection basin parameter is surveyed, has fully considered the pass between deflection basin parameter and pavement structure parameter
Connection relationship, and the corresponding pavement structure parameter of deflection basin parameter when surveying is obtained using the incidence relation, it improves and obtains road
The accuracy of face structural parameters.
The pavement structure parameter acquiring system of the present invention and the pavement structure parameter acquiring method of the present invention correspond,
The technical characteristic and advantage that the embodiment of above-mentioned pavement structure parameter acquiring method illustrates are suitable for pavement structure and join
In the embodiment of number acquisition system, hereby give notice that.
The present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, which is handled
Device realizes the pavement structure parameter acquiring method in above-mentioned any embodiment when executing.Performed by the computer readable storage medium
Method it is identical as the pavement structure parameter acquiring method in above-described embodiment, details are not described herein again.
The more specific example (non-exhaustive list) of computer-readable medium includes following：It is connected up with one or more
Electrical connection section (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
The present invention also provides a kind of computer equipment, including memory, processor and storage on a memory and can located
The computer program run on reason device, the processor realize the pavement structure in above-mentioned any embodiment when executing described program
Parameter acquiring method.The pavement structure parameter in the method and above-described embodiment performed by processor in the computer equipment obtains
Take method identical, details are not described herein again.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of pavement structure parameter acquiring method, which is characterized in that include the following steps：
Obtain the actual measurement deflection basin on road surface；
The corresponding actual measurement deflection basin parameter of the actual measurement deflection basin is determined according to preset deflection basin parameter model；
It is obtained and the actual measurement flexure according to the theoretical deflection basin parameter on preset road surface and the incidence relation of pavement structure parameter
The actual measurement pavement structure parameter of basin parameter association.
2. pavement structure parameter acquiring method according to claim 1, which is characterized in that the structure of the incidence relation
Journey includes：
It obtains and includes the manifold of different pavement parameter, determined and each do not gone the same way according to the manifold and preset mechanical model
The corresponding theoretical deflection basin of face structural parameters；
The corresponding reason of the corresponding theory deflection basin of each pavement structure parameter is obtained according to preset deflection basin parameter model
By deflection basin parameter, according to the corresponding theoretical deflection basin ginseng of each pavement structure parameter of different pavement structure parameters and acquisition
Number builds the incidence relation.
3. pavement structure parameter acquiring method according to claim 2, which is characterized in that further include：
Obtain comprising different pavement parameter manifold after, according to pavement structure parameter different in the manifold with it is curved
Incidence relation at heavy basin different location between numerical value builds deflection basin parameter model.
4. pavement structure parameter acquiring method according to claim 2, which is characterized in that the structure of the incidence relation
Journey further includes：
After determining the theoretical deflection basin on road surface, amendment is fitted to the theoretical deflection basin according to default correction function；
The theoretical flexure on the corresponding road surface of theoretical deflection basin on each road surface is obtained according to preset deflection basin parameter model
Basin parameter builds the incidence relation according to the theoretical deflection basin parameter on different pavement structure parameters and each road surface of acquisition
The step of include：The corresponding amendment of theoretical deflection basin on revised each road surface is obtained according to preset deflection basin parameter model
Theoretical deflection basin parameter builds described be associated with according to different pavement structure parameters with the revised theory deflection basin parameter of acquisition
System.
5. pavement structure parameter acquiring method according to claim 1, which is characterized in that according to preset deflection basin parameter
Model determines that the step of actual measurement deflection basin corresponding actual measurement deflection basin parameter includes：
Amendment is fitted to the actual measurement deflection basin according to default correction function, is determined according to preset deflection basin parameter model
The corresponding modified actual measurement deflection basin parameter of revised actual measurement deflection basin；
It is obtained and the actual measurement flexure according to the theoretical deflection basin parameter on preset road surface and the incidence relation of pavement structure parameter
The step of actual measurement pavement structure parameter of basin parameter association includes：It is tied according to the theoretical deflection basin parameter on preset road surface and road surface
The incidence relation of structure parameter obtains and the modified associated actual measurement pavement structure parameter of actual measurement deflection basin parameter.
6. the pavement structure parameter acquiring method according to claim 1 to 5 any one, which is characterized in that further include：
After acquisition with the associated actual measurement pavement structure parameter of the actual measurement deflection basin parameter, according to the actual measurement pavement structure
Parameter and preset mechanical model, which obtain, calculates deflection basin；
Error precision is obtained according to the calculating deflection basin and the actual measurement deflection basin, if the error precision is less than preset essence
Threshold value is spent, then exports the actual measurement pavement structure parameter.
7. pavement structure parameter acquiring method according to claim 6, which is characterized in that according to the determining deflection basin
After the step of obtaining error precision with the actual measurement deflection basin, further include：
If the error precision is more than preset precision threshold, according to the error precision to the theoretical deflection basin on the road surface
The incidence relation of parameter and pavement structure parameter is modified.
8. a kind of pavement structure parameter acquiring system, which is characterized in that including：
Survey module, the actual measurement deflection basin for obtaining road surface；
Determining module, for determining that the corresponding actual measurement deflection basin of the actual measurement deflection basin is joined according to preset deflection basin parameter model
Number；
Acquisition module, for according to the incidence relation of the theoretical deflection basin parameter on preset road surface and pavement structure parameter obtain with
The associated actual measurement pavement structure parameter of actual measurement deflection basin parameter.
9. a kind of computer storage media, is stored thereon with computer program, which is characterized in that the computer program is handled
The pavement structure parameter acquiring method described in claim 1 to 7 any one is realized when device executes.
10. a kind of computer equipment, including memory, processor and storage are on a memory and the meter that can run on a processor
Calculation machine program, which is characterized in that the processor realizes the road described in claim 1 to 7 any one when executing described program
Face structural parameters acquisition methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810146282.4A CN108375511A (en) | 2018-02-12 | 2018-02-12 | Pavement structure parameter acquiring method and system, storage medium and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810146282.4A CN108375511A (en) | 2018-02-12 | 2018-02-12 | Pavement structure parameter acquiring method and system, storage medium and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108375511A true CN108375511A (en) | 2018-08-07 |
Family
ID=63017907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810146282.4A Pending CN108375511A (en) | 2018-02-12 | 2018-02-12 | Pavement structure parameter acquiring method and system, storage medium and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108375511A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799155A (en) * | 2019-01-22 | 2019-05-24 | 北京市道路工程质量监督站(北京市公路工程质量检测中心) | A kind of existing bituminous pavement damage detecting method |
| CN110348153A (en) * | 2019-07-17 | 2019-10-18 | 上海市城市建设设计研究总院（集团）有限公司 | A kind of composite pavement damage method of discrimination |
| CN113447342A (en) * | 2021-06-28 | 2021-09-28 | 哈尔滨工业大学 | Method for identifying modulus of each layer and contact state between layers of asphalt pavement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1576817A (en) * | 2004-09-07 | 2005-02-09 | 长安大学 | Modulus anti-inference method for rock-fill roadbed |
| CN102505622A (en) * | 2011-10-10 | 2012-06-20 | 同济大学 | Method for pavement condition nondestructive detection based on FWD |
| CN104792975A (en) * | 2015-04-03 | 2015-07-22 | 山东省交通科学研究所 | Asphalt pavement structure layer modulus inversion method |
| CN106384349A (en) * | 2016-09-20 | 2017-02-08 | 广州肖宁道路工程技术研究事务所有限公司 | Tire and road surface contact stress distribution and stress concentration detection method |
-
2018
- 2018-02-12 CN CN201810146282.4A patent/CN108375511A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1576817A (en) * | 2004-09-07 | 2005-02-09 | 长安大学 | Modulus anti-inference method for rock-fill roadbed |
| CN102505622A (en) * | 2011-10-10 | 2012-06-20 | 同济大学 | Method for pavement condition nondestructive detection based on FWD |
| CN104792975A (en) * | 2015-04-03 | 2015-07-22 | 山东省交通科学研究所 | Asphalt pavement structure layer modulus inversion method |
| CN106384349A (en) * | 2016-09-20 | 2017-02-08 | 广州肖宁道路工程技术研究事务所有限公司 | Tire and road surface contact stress distribution and stress concentration detection method |
Non-Patent Citations (5)
| Title |
|---|
| 丛波日等: "基于弯沉盆参数的半刚性基层沥青路面结构层", 《中外公路》 * |
| 周岚等: "基于弯沉盆的高速公路沥青混凝土路面结构状况评价研究", 《公路》 * |
| 张万龙 等: "《数学建模方法与案例》", 31 January 2014, 国防工业出版社 * |
| 李怀月: "基于FWD 弯沉参数的沥青路面结构承载力评价方法", 《中南公路工程》 * |
| 邓苗毅: "《结构静力有限元模型修正研究与应用》", 31 October 2015 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799155A (en) * | 2019-01-22 | 2019-05-24 | 北京市道路工程质量监督站(北京市公路工程质量检测中心) | A kind of existing bituminous pavement damage detecting method |
| CN110348153A (en) * | 2019-07-17 | 2019-10-18 | 上海市城市建设设计研究总院（集团）有限公司 | A kind of composite pavement damage method of discrimination |
| CN110348153B (en) * | 2019-07-17 | 2023-10-17 | 上海市城市建设设计研究总院（集团）有限公司 | Composite pavement damage judging method |
| CN113447342A (en) * | 2021-06-28 | 2021-09-28 | 哈尔滨工业大学 | Method for identifying modulus of each layer and contact state between layers of asphalt pavement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108375511A (en) | Pavement structure parameter acquiring method and system, storage medium and equipment | |
| CN103210397B (en) | There is the oil reservoir method of roughening keeping transport | |
| Ching et al. | Linking site investigation efforts to final design savings with simplified reliability-based design methods | |
| CN112417573A (en) | Multi-objective optimization method for shield tunneling underneath existing tunnel construction based on GA-LSSVM and NSGA-II | |
| CN102175213B (en) | GPS leveling height transfer method | |
| CN104652347A (en) | Method for evaluating relation between non-static water level and population affected by submerging in mountain region | |
| Nasimifar et al. | Computation of pavement vertical surface deflections from traffic speed deflectometer data: evaluation of current methods | |
| CN106257541A (en) | A kind of modification method of bridge finite element model | |
| Haider et al. | Impact of systematic axle load measurement error on pavement design using mechanistic-empirical pavement design guide | |
| Azizian et al. | Investigation of the Effects of DEM Creation Methods on the Performance of a Semidistributed Model: TOPMODEL | |
| Xu et al. | Coupling a regional climate model and a distributed hydrological model to assess future water resources in Jinhua River Basin, East China | |
| Castillo et al. | Importance of heterogeneity in asphalt pavement modeling | |
| Bingeman et al. | Validation of the hydrological processes in a hydrological model | |
| CN108589491B (en) | Method for setting depth of rigid layer for modulus inversion of asphalt pavement | |
| Goldstein et al. | Effect of spatial resolution in modeling stormwater runoff for an urban block | |
| Chen et al. | Innovative approach for pavement runoff characterization | |
| Meles Bitew et al. | Dynamic domain kinematic modelling for predicting interflow over leaky impeding layers | |
| CN110457772A (en) | The DEM of a kind of combination planar curvature and steepest direction of fall flows to estimation method | |
| Cheng et al. | Time and Flow Characteristics of Component Hydrographs Related to Rainfall–Streamflow Observations | |
| Pan et al. | Downscaling 1-km topographic index distributions to a finer resolution for the TOPMODEL-based GCM hydrological modeling | |
| Lapides et al. | Analytical solutions to runoff on hillslopes with curvature: numerical and laboratory verification | |
| CN114757049A (en) | Method for analyzing and verifying necessity of upgrading and transforming drainage basin sewage treatment plant | |
| Isaacson et al. | USGS streamflow data and modeling sand-bed rivers | |
| Hess et al. | Evapotranspiration void space accounting method | |
| Pan et al. | Numerical study of typhoon-induced storm surge in the Yangtze Estuary of China using a coupled 3D model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180807 |
|
| RJ01 | Rejection of invention patent application after publication |