CN110119533A - The calculation method of mud jacking compactness based on display dynamical modeling analysis - Google Patents
The calculation method of mud jacking compactness based on display dynamical modeling analysis Download PDFInfo
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Abstract
The present invention provides a kind of calculation method of mud jacking compactness based on display dynamical modeling analysis, comprising: S1) establish multiple concrete models with different-thickness value H；S2) load load(ing) point is set on each concrete model；S3 the time-domain and frequency-domain curve of common-source point in the first duration) is sampled；S4 the Mintrop wave sound duration T of each concrete model) is calculated1；S5) according to Mintrop wave sound duration T1With complete close Mintrop wave sound duration T2Mintrop wave sound duration rate of change value is obtained with the difference of the first definite value；S6) fitting Mintrop wave sound duration rate of change value and compactness grade obtain first slope value k1With the first values of intercept b1；S7 multiple first slope value k) are fitted1With multiple thickness value H；S8 multiple first values of intercept b) are fitted1It is obtained with multiple thickness value H；S9) according to step S7) and step S8) obtain functional relation between mud jacking compactness C and thickness value H.The calculation method is convenient for calculating mud jacking compactness C according to known parameters, it is therefore prevented that because damaging brought by mud jacking leakiness.
Description
Technical field
The present invention relates to engineering construction construction fields, and in particular, in the hole path pressure grouting construction in bridge construction
A kind of calculation method of the mud jacking compactness based on display dynamical modeling analysis.
Background technique
In recent years, with the rapid development of science and technology, the development that bridge cause is also advanced by leaps and bounds is different types of
Science of bridge building emerges in large numbers one after another, since prestressed concrete is compared with reinforced concrete structure, has that crack resistance is good, rigidity is big, section
The advantages that material saving, reliable structure safety, quality, is gradually taken seriously and is applied in various heavy constructions, and especially
World War II causes steel in short supply, and then prestressed reinforced concrete construction largely replaces steel construction, prestressed concrete technology
Unprecedented development is obtained, all types of Prestressed Concrete Bridges are risen like the mushrooms after rain.
The quality of concrete material can change with the growth of time, and internal structure performance can be because extraneous natural
It is gradually degraded under many factors collective effects such as environment, use environment and material internal factor, defect occurs and even occur
The damage of structure.For Prestressed Concrete Bridges, caused by degradation phenomena is shown mostly due to outer concrete peeling
The corrosion of regular reinforcement, effective prestress is caused to reduce for the corrosion of the presstressed reinforcing steel as caused by mud jacking leakiness thus and concrete
Adhesion strength decline phenomena such as, these phenomenons will affect the applicability of Prestressed Concrete Bridges, durability, even safe
Property, therefore this is the phenomenon that bridge circle must be caused to pay much attention to, therefore after the completion of hole path pressure grouting, it is necessary to grasp the closely knit of mud jacking
Information is spent, to prevent because of various damages brought by mud jacking leakiness.
Summary of the invention
The object of the present invention is to provide a kind of calculation methods of mud jacking compactness based on display dynamical modeling analysis, with pre-
It is anti-that presstressed reinforcing steel corrosion is caused to cause effective prestress to reduce to decline with the adhesion strength of concrete because of mud jacking leakiness
Phenomena such as.
The embodiment of the present invention provides a kind of calculation method of mud jacking compactness based on display dynamical modeling analysis, the meter
Calculation method is the following steps are included: S1) multiple Rectangular Concrete models with different-thickness value H are established using modeling software, and
Select maximum two faces of area as basal plane on the surface of each concrete model, in each concrete model
Multiple bellowss parallel to each other are embedded according to fixed spacing, the center line of multiple bellowss is located in the same plane；
S2) load load(ing) point is set on any basal plane of each concrete model, and be applied on the load load(ing) point
The long load of timing；S3 it) is determined and the load on another basal plane parallel with the basal plane where the load load(ing) point
The corresponding common-source point of load(ing) point, mud jacking the compactness C, the mud jacking compactness C that the bellows is arranged have multiple compactness
Grade, adjusts the compactness grade of the mud jacking compactness C of the bellows, and samples in the first duration the common-source point described
The first time of load load(ing) point bootstrap loading load lights the time-domain and frequency-domain when bellows is in corresponding compactness grade
Curve；S4 it) is calculated at the bellows in each concrete model based on the time-domain and frequency-domain curve using modeling software
Mintrop wave sound duration T when different compactness grades1；S5) by each Mintrop wave sound duration T1It is in complete divided by the bellows
Close close Mintrop wave sound duration T complete in real time2Head when afterwards with the difference of the first definite value as the bellows difference compactness grade
Wave sound duration rate of change value；S6 the Mintrop wave sound duration rate of change value and the compactness etc. of each concrete model) are fitted
Grade obtains the first matched curve, and the first slope value k of the first matched curve is obtained according to the first matched curve1With the first values of intercept
b1；S7) it is fitted the first slope value k of multiple concrete models1Is obtained with the thickness value H of multiple concrete models
Two matched curves；S8) it is fitted the first values of intercept b of multiple concrete models1With the thickness of multiple concrete models
Value H obtains third matched curve；S9) show that the mud jacking is closely knit based on second matched curve and the third matched curve
Spend the functional relation between the C and thickness value H of the concrete model: T1/T2- 1=(0.001H-0.0541) C+ (- 0.0011H
+ 0.0632), in formula: T1Headed by wave sound duration, T2For complete close Mintrop wave sound duration, H is the thickness of concrete model, and C is that mud jacking is close
Solidity.
Specifically, step S2) described in load load(ing) point the surface of any one bellows is set.
Specifically, step S3) described in compactness grade include: complete empty, 1/4 closely knit, 1/2 closely knit, 3/4 closely knit, Quan Mi
It is real.
Specifically, step S3) described between common-source point and the load load(ing) point distance it is minimum.
Specifically, step S5) described in the first definite value be 1.
Specifically, step S7) in the multiple concrete models of fitting first slope value k1With multiple concrete
The thickness value H of model obtains the second matched curve, further includes: calculates second matched curve using the modeling software
Coefficient of determination.
Specifically, step S8) in the multiple concrete models of fitting the first values of intercept b1With multiple concrete
The thickness value H of model obtains third matched curve, further includes: calculates the third matched curve using the modeling software
Coefficient of determination.
The calculation method of mud jacking compactness provided by the invention based on display dynamical modeling analysis, based in modeling software
Apply load on multiple Rectangular Concrete models of the different-thickness of foundation, and corresponding with the point of load on each concrete model
Common-source point on the bellows that measures in concrete model be in the time-domain and frequency-domain curve sampled when different compactness grade C, and
Each concrete model is calculated in different compactness grades according to the time-domain and frequency-domain curve of sampling using modeling software
Mintrop wave sound duration T1, according to Mintrop wave sound duration T1Divided by complete close Mintrop wave sound duration T2Quotient and the difference of the first definite value obtain not
With Mintrop wave sound duration rate of change value when compactness grade, Mintrop wave sound duration rate of change value and compactness grade are fitted
To the first matched curve, the first matched curve of multiple concrete models that modeling software fits is studied, obtains each coagulation
It is in linear function linear relationship between the Mintrop wave sound duration rate of change value and mud jacking compactness C of soil model, is obtained in order to further
Functional relation between mud jacking compactness C and known parameters Concrete Thick angle value H out, by the first fitting of multiple concrete models
The first slope value k of curve1With the first values of intercept b1It is fitted respectively with the thickness value H of concrete model, obtains multiple coagulations
The first slope value k of the first matched curve of the thickness value H and multiple concrete models of soil1Between it is in a linear relationship, second is quasi-
Close the first values of intercept b of the first matched curve of the thickness value H and multiple concrete models of curve and multiple concrete1Between be in
The third matched curve of linear relationship, analyzes the second matched curve and third matched curve obtains mud jacking compactness C and concrete
Functional relation between the thickness value H of model.
The calculation method of mud jacking compactness C provided by the invention based on display dynamical modeling analysis is obtained by modeling software
Functional relation between mud jacking compactness C and the known thickness value H of concrete model out, convenient for being calculated according to known parameters
Mud jacking compactness C, the detailed information for having grasped the mud jacking compactness C after the completion of hole path pressure grouting can prevent because mud jacking is not close
It phenomena such as corrosion of presstressed reinforcing steel caused by fact causes effective prestress to reduce to decline with the adhesion strength of concrete, prevents
The damage of mud jacking leakiness bring.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the calculation method for the mud jacking compactness based on display dynamical modeling analysis that embodiment of the present invention provides
Flow chart；
Fig. 2 is in the calculation method for the mud jacking compactness based on display dynamical modeling analysis that embodiment of the present invention provides
Concrete model thickness value is the illustraton of model of 30cm；
Fig. 3 is in the calculation method for the mud jacking compactness based on display dynamical modeling analysis that embodiment of the present invention provides
The illustraton of model that concrete model thickness value is 30cm is 1/4 close real-time time-domain and frequency-domain curve graph in bellows compactness grade；
Fig. 4 is in the calculation method for the mud jacking compactness based on display dynamical modeling analysis that embodiment of the present invention provides
The illustraton of model that concrete model thickness value is 30cm is complete close real-time time-domain and frequency-domain curve graph in bellows compactness grade；
Fig. 5 is in the calculation method for the mud jacking compactness based on display dynamical modeling analysis that embodiment of the present invention provides
Concrete model thickness value is the first matched curve figure of 18cm；
Fig. 6 is in the calculation method for the mud jacking compactness based on display dynamical modeling analysis that embodiment of the present invention provides
Concrete model thickness value is the first matched curve figure of 30cm；
Fig. 7 is in the calculation method for the mud jacking compactness based on display dynamical modeling analysis that embodiment of the present invention provides
Second matched curve figure；
Fig. 8 is in the calculation method for the mud jacking compactness based on display dynamical modeling analysis that embodiment of the present invention provides
Third matched curve figure.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually needle
For direction shown in the drawings either for it is vertical, on vertical or gravity direction for each component mutual alignment relation
Word is described.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment of the present invention provides a kind of calculation method of mud jacking compactness based on display dynamical modeling analysis, such as schemes
1 show based on display dynamical modeling analysis mud jacking compactness calculation method flow chart, the calculation method include with
Lower step: S1) multiple Rectangular Concrete models with different-thickness value H are established using modeling software, and each described mixed
The surface of solidifying soil model selects maximum two faces of area as basal plane, according to fixed spacing in each concrete model
Multiple bellowss parallel to each other are embedded in, the center line of multiple bellowss is located in the same plane；S2) each described
Load load(ing) point is set on any basal plane of concrete model, and is applied to the long load of timing on the load load(ing) point；
S3) and the load load(ing) point where the parallel another basal plane of basal plane on determine it is corresponding total with the load load(ing) point
Shot point is arranged mud jacking the compactness C, the mud jacking compactness C of the bellows with multiple compactness grades, adjusts the wave
The compactness grade of the mud jacking compactness C of line pipe, and sample the common-source point in the first duration and add certainly in the load load(ing) point
The first time for carrying load lights the time-domain and frequency-domain curve when bellows is in corresponding compactness grade；S4) it is based on institute
It states the bellows that time-domain and frequency-domain curve is calculated using modeling software in each concrete model and is in different compactness etc.
Mintrop wave sound duration T when grade1；S5) by each Mintrop wave sound duration T1Complete close close head complete in real time is in divided by the bellows
Wave sound duration T2Mintrop wave sound duration change rate when afterwards with the difference of the first definite value as the bellows difference compactness grade
Value；S6 it) is fitted the Mintrop wave sound duration rate of change value of each concrete model and compactness grade obtains the first fitting
Curve obtains the first slope value k of the first matched curve according to the first matched curve1With the first values of intercept b1；S7 it) is fitted multiple
The first slope value k of the concrete model1The second matched curve is obtained with the thickness value H of multiple concrete models；S8)
It is fitted the first values of intercept b of multiple concrete models1Show that third is fitted with the thickness value H of multiple concrete models
Curve；S9 the mud jacking compactness C and the concrete) are obtained based on second matched curve and the third matched curve
Functional relation between the thickness value H of model: T1/T2- 1=(0.001H-0.0541) C+ (- 0.0011H+0.0632), in formula:
T1Headed by wave sound duration, T2For complete close Mintrop wave sound duration, H is the thickness of concrete model, and C is mud jacking compactness.
A kind of calculation method of mud jacking compactness based on display dynamical modeling analysis provided by the invention, it is soft by modeling
Part establishes the multiple concrete models of different-thickness, and carries out loaded load simulation to each model, obtain mud jacking compactness C with
Mintrop wave sound duration T1Divided by complete close Mintrop wave sound duration T2Afterwards between the difference of the first definite value (i.e. Mintrop wave sound duration rate of change value)
The first matched curve that linear function relationship, i.e. Mintrop wave sound duration rate of change value and compactness grade fit is that linear function is bent
Line is fitted Concrete Thick angle value H and the to obtain the functional relation between mud jacking compactness C and known Concrete Thick angle value H
The first slope value k of one matched curve1And the first values of intercept b of Concrete Thick angle value H and the first matched curve1One is obtained respectively
The second matched curve and third matched curve of secondary function curve, are obtained by the second matched curve and the third matched curve
Functional relation between mud jacking compactness C and the thickness value H of concrete model, T1/T2- 1=(0.001H-0.0541) C+ (-
0.0011H+0.0632), according to the functional relation, letter is established between mud jacking compactness C and the thickness value H of concrete model
Number relationship, it may be convenient to calculate mud jacking compactness C, can be prevented according to calculated mud jacking compactness C because mud jacking is not close
Phenomena such as corrosion of presstressed reinforcing steel caused by fact causes effective prestress to reduce to decline with the adhesion strength of concrete.
Subsequent record and analysis for convenience, specifically, step S2) described in load load(ing) point be arranged at any one
The surface of bellows.
Time-domain and frequency-domain curve when sampling different compactness grades, for the accuracy and uniformity of sampling, specifically,
Step S3) described in compactness grade include: complete empty, 1/4 closely knit, 1/2 closely knit, 3/4 closely knit, Quan Mishi.It is not right in the present invention
Compactness grade is limited, and the determination of compactness grade is determined according to specific simulated experiment.
In order to facilitate the sampling of time-domain and frequency-domain curve, specifically, step S3) described in common-source point and the load load(ing) point
Between distance it is minimum.
Mintrop wave sound duration T1Divided by complete close Mintrop wave sound duration T2Value be all larger than 1, for convenience observe data between correlation
Property, specifically, step S5) described in the first definite value be 1.
In order to determine the goodness of fit of the second matched curve, specifically, step S7) in the multiple concrete models of fitting
First slope value k1The second matched curve is obtained with the thickness value H of multiple concrete models, further includes: is built using described
Mould software calculates the coefficient of determination of second matched curve.Utilize the judgement system for the second matched curve that modeling software obtains
Count the goodness of fit to determine the second matched curve.
In order to determine the goodness of fit of third matched curve, specifically, step S8) in the multiple concrete models of fitting
The first values of intercept b1Third matched curve is obtained with the thickness value H of multiple concrete models, further includes: is built using described
Mould software calculates the coefficient of determination of the third matched curve.Utilize the judgement system for the third matched curve that modeling software obtains
Count the goodness of fit to determine third matched curve.
In one embodiment, multiple concrete models that different-thickness is established using Abaqus software, such as Fig. 2 institute
Show, the concrete model that thickness value H is 18cm, 25cm, 30cm, 35cm, 40cm, 45cm, 50cm, 55cm is established respectively, to every
One concrete model carries out grid dividing, and grid dividing is having a size of 0.005m, and in the load load(ing) point of each concrete model
On be applied to the load of a length of 50 μ s of timing, choose common-source point on the basal plane parallel with load load(ing) point, sample for convenience,
Distance is minimum between the common-source point and load load(ing) point of selection, and common-source point is a length of in common-source point sampling first after choosing
0.0003s, first time point are time-domain and frequency-domain curve when 0.0000001s plays different compactness grades, as Figure 3-Figure 4,
The 1/4 closely knit and complete close real-time time-domain and frequency-domain curve that concrete model thickness value is 30cm is sampled, time-domain and frequency-domain curve is based on
When calculating the Mintrop wave sound when bellows in each concrete model is in different compactness grades by modeling software
Value T1, by compactness ranking score are as follows: and complete empty, 1/4 closely knit, 1/2 closely knit, 3/4 closely knit, Quan Mishi, wherein full sky is 0, Quan Mishi
It is 1, specific such as table 1:
Mintrop wave sound duration when 1 difference compactness grade of table
Seek changing rule for convenience, by each Mintrop wave sound duration T1It is in complete close complete in real time divided by the bellows
Close Mintrop wave sound duration T2Mintrop wave sound duration when afterwards with the difference of the first definite value as the bellows difference compactness grade becomes
Rate value, the first definite value is 1, such as table 2.
Mintrop wave sound duration rate of change value when 2 difference compactness grade of table
Mintrop wave sound duration rate of change value and compactness grade obtain the first matched curve in fitting table 2, such as Fig. 5-Fig. 6 institute
Show, show that concrete model thickness value H is the first matched curve of 18cm: T1/T2- 1=-0.0359C+0.0459, concrete mould
Type thickness value H is the first matched curve of 30cm: T1/T2- 1=-0.00303C+0.0281；According to the different-thickness value fitted
The first matched curve of concrete model of H obtains the first slope value k of the first matched curve of different-thickness value H1With first section
Away from value b1, such as table 3 and table 4.
The first slope value of the first matched curve of 3 different-thickness value H of table
As shown in fig. 7, being fitted multiple first slope value k1The second matched curve is obtained with thickness value H, obtains the second fitting
Slope of a curve is 0.001H-0.0541, and the coefficient of determination R of the second matched curve is calculated by modeling software2=
0.9243, show that the second matched curve has significant linear relationship.
First values of intercept of the first matched curve of 4 different-thickness value H of table
As shown in figure 8, the multiple first values of intercept b of fitting1Third matched curve is obtained with thickness value H, show that third is fitted
Intercept-the 0.0011H+0.0632 of curve, the coefficient of determination R of third matched curve is calculated by modeling software2=
0.9356, show that third matched curve has significant linear relationship.
The values of intercept that the slope value and third matched curve being fitted based on the second matched curve are fitted leads to Abaqus pairs
Different-thickness value H, the different closely knit grade of mud jacking concrete model carry out modeling Analysis and can obtain, T1, thickness value H,
The theoretical calculation formula of mud jacking compactness C is as follows:
T1/T2- 1=(0.001H-0.0541) C+ (- 0.0011H+0.0632).
Mud jacking compactness C can be calculated by above-mentioned formula, presstressed reinforcing steel caused by due to mud jacking leakiness can be prevented
Phenomena such as corrosion causes effective prestress to reduce to decline with the adhesion strength of concrete prevents mud jacking leakiness bring from damaging
Evil.
The calculation method of mud jacking compactness provided by the invention based on display dynamical modeling analysis, based in modeling software
Apply load on multiple Rectangular Concrete models of the different-thickness of foundation, and corresponding with the point of load on each concrete model
Common-source point on the bellows that measures in concrete model be in the time-domain and frequency-domain curve sampled when different compactness grade C, and
Each concrete model is calculated in different compactness grades according to the time-domain and frequency-domain curve of sampling using modeling software
Mintrop wave sound duration T1, according to Mintrop wave sound duration T1Divided by complete close Mintrop wave sound duration T2Quotient and the difference of the first definite value obtain not
With Mintrop wave sound duration rate of change value when compactness grade, Mintrop wave sound duration rate of change value and compactness grade are fitted
To the first matched curve, the first matched curve of multiple concrete models that modeling software fits is studied, obtains each coagulation
It is in linear function linear relationship between the Mintrop wave sound duration rate of change value and mud jacking compactness C of soil model, is obtained in order to further
Functional relation between mud jacking compactness C and known parameters Concrete Thick angle value H out, by the first fitting of multiple concrete models
The first slope value k of curve1With the first values of intercept b1It is fitted respectively with the thickness value H of concrete model, obtains multiple coagulations
The first slope value k of the first matched curve of the thickness value H and multiple concrete models of soil1Between it is in a linear relationship second fitting
It is in line between first values of intercept b1 of the first matched curve of the thickness value H and multiple concrete models of curve and multiple concrete
The third matched curve of sexual intercourse, analyzes the second matched curve and third matched curve obtains mud jacking compactness C and concrete mould
Functional relation between the thickness value H of type.
The calculation method of mud jacking compactness C provided by the invention based on display dynamical modeling analysis is obtained by modeling software
Functional relation between mud jacking compactness C and the known thickness value H of concrete model out, convenient for being calculated according to known parameters
Mud jacking compactness C, the detailed information for having grasped the mud jacking compactness C after the completion of hole path pressure grouting can prevent because mud jacking is not close
It phenomena such as corrosion of presstressed reinforcing steel caused by fact causes effective prestress to reduce to decline with the adhesion strength of concrete, prevents
The damage of mud jacking leakiness bring.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (7)
1. a kind of calculation method of the mud jacking compactness based on display dynamical modeling analysis, which is characterized in that the calculation method
The following steps are included:
S1 multiple Rectangular Concrete models with different-thickness value H) are established using modeling software, and in each concrete
The surface of model selects maximum two faces of area as basal plane, is embedded in each concrete model according to fixed spacing
The center line of multiple bellowss parallel to each other, multiple bellowss is located in the same plane；
S2) load load(ing) point is set on any basal plane of each concrete model, and applied on the load load(ing) point
Add to the long load of timing；
S3 it) is determined on another basal plane parallel with the basal plane where the load load(ing) point corresponding with the load load(ing) point
Common-source point, the mud jacking compactness C of the bellows is set, and the mud jacking compactness C has multiple compactness grades, adjusts institute
It states the compactness grade of the mud jacking compactness C of bellows, and samples in the first duration the common-source point in the load load(ing) point
The first time of bootstrap loading load lights the time-domain and frequency-domain curve when bellows is in corresponding compactness grade；
S4) bellows in each concrete model is calculated using modeling software based on the time-domain and frequency-domain curve to be in
Mintrop wave sound duration T when different compactness grades1；
S5) by each Mintrop wave sound duration T1Complete close close Mintrop wave sound duration T complete in real time is in divided by the bellows2Afterwards with
Mintrop wave sound duration rate of change value when the difference of first definite value is as the bellows difference compactness grade；
S6 it) is fitted the Mintrop wave sound duration rate of change value of each concrete model and compactness grade obtains the first fitting
Curve obtains the first slope value k of the first matched curve according to the first matched curve1With the first values of intercept b1；
S7) it is fitted the first slope value k of multiple concrete models1Is obtained with the thickness value H of multiple concrete models
Two matched curves；
S8) it is fitted the first values of intercept b of multiple concrete models1Is obtained with the thickness value H of multiple concrete models
Three matched curves；
S9 the mud jacking compactness C and the concrete) are obtained based on second matched curve and the third matched curve
Functional relation between the thickness value H of model:
T1/T2- 1=(0.001H-0.0541) C+ (- 0.0011H+0.0632)
In formula: T1Headed by wave sound duration, T2For complete close Mintrop wave sound duration, H is the thickness of concrete model, and C is mud jacking compactness.
2. calculation method according to claim 1, which is characterized in that step S2) described in load load(ing) point setting it is in office
It anticipates the surface of a bellows.
3. calculation method according to claim 1, which is characterized in that step S3) described in compactness grade include: complete
Empty, 1/4 closely knit, 1/2 closely knit, 3/4 closely knit, Quan Mishi.
4. calculation method according to claim 1, which is characterized in that step S3) described in common-source point add with the load
Distance is minimum between loading point.
5. calculation method according to claim 1, which is characterized in that step S5) described in the first definite value be 1.
6. calculation method according to claim 1, which is characterized in that step S7) in the multiple concrete models of fitting
First slope value k1The second matched curve is obtained with the thickness value H of multiple concrete models, further includes: is built using described
Mould software calculates the coefficient of determination of second matched curve.
7. calculation method according to claim 1, which is characterized in that step S8) in the multiple concrete models of fitting
The first values of intercept b1Third matched curve is obtained with the thickness value H of multiple concrete models, further includes: is built using described
Mould software calculates the coefficient of determination of the third matched curve.
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