CN112539994A - Linear road accelerated loading test method and system based on fatigue damage - Google Patents
Linear road accelerated loading test method and system based on fatigue damage Download PDFInfo
- Publication number
- CN112539994A CN112539994A CN202011521183.3A CN202011521183A CN112539994A CN 112539994 A CN112539994 A CN 112539994A CN 202011521183 A CN202011521183 A CN 202011521183A CN 112539994 A CN112539994 A CN 112539994A
- Authority
- CN
- China
- Prior art keywords
- loading
- road
- temperature
- total
- accelerated
- 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
Images
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
- G01N3/02—Details
-
- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a fatigue damage-based linear road accelerated loading test method and a system, wherein the method comprises the following steps: acquiring a total traffic prediction result of a road; converting the total traffic into the total loading frequency of the acceleration loading device under the action of standard axle load; acquiring a full-year real service temperature field of a road, and calculating the damage proportion of each temperature section; calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device corresponding to each temperature section according to the total loading frequency and the damage proportion of each temperature section; and carrying out an accelerated loading test based on fatigue damage according to the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section, thereby realizing the accelerated loading test of the road. The fatigue test method is suitable for fatigue research of an accelerated loading test, can effectively realize the accelerated loading test based on fatigue damage, and has important value and practical significance.
Description
Technical Field
The invention relates to the technical field of road engineering, in particular to a method and a system for a linear road accelerated loading test based on fatigue damage.
Background
With the increasing traffic volume, the overloading phenomenon on the road is common, so that the problem of asphalt pavement diseases in China is more serious. Under the coupling action of repeated traffic load and environmental temperature, the structural strength of the asphalt pavement is gradually reduced. When the repeated action of the load exceeds a certain number of times, the stress generated by the pavement exceeds the structural resistance after the strength is reduced, so that the pavement is subjected to fatigue crack, and the pavement is damaged. Therefore, it is very important to study the fatigue damage characteristics of the asphalt pavement under the coupling action of temperature and load.
The linear road accelerated loading test device is used for simulating accelerated loading tests of roads with different load types, different materials and different structures in special region environments. The test is used for simulating real conditions, and a long-term rule can be obtained in a short-term test, so that the method is the most effective method for testing the performance of the asphalt pavement at present.
The linear road accelerated loading test device can realize the simulation of comprehensive service conditions such as various environmental factors, vehicle loads and the like, but at present, the linear accelerated loading test device has not a complete test system, the accelerated loading test technology research is not complete, the research on the coupling effect of the temperature and the vehicle load in the road accelerated loading test needs to be carried out urgently, the asphalt pavement accelerated loading fatigue test system is determined, and the technical preparation is provided for carrying out the application research in the related industries in the future.
Disclosure of Invention
The invention provides a method and a system for a linear road accelerated loading test based on fatigue damage, which aim to solve the technical problem that the conventional linear accelerated loading test device has no complete test system and cannot systematically realize an accelerated loading test according to a fatigue damage mechanism. Therefore, an accelerated loading fatigue test system of the asphalt pavement is determined, and technical preparation is provided for developing application research in related industries in the future.
In order to solve the technical problems, the invention provides the following technical scheme:
on one hand, the invention provides a linear road accelerated loading test method based on fatigue damage, which comprises the following steps:
acquiring a total traffic prediction result of a road;
converting the traffic total prediction result into the total loading frequency of the accelerated loading device under the action of standard axle load;
acquiring a full-year real service temperature field of a road, and calculating the damage proportion of each temperature section;
calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage proportion of each temperature section;
and carrying out an accelerated loading test based on fatigue damage according to the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section, thereby realizing the accelerated loading test of the road.
Further, the obtaining of the total traffic prediction result of the road includes:
and predicting the future traffic total of the road by combining the analysis data of traffic attraction and transfer according to the road data and the road development rule to obtain the traffic total prediction result of the road.
Further, the converting the total traffic prediction result into the total loading frequency of the acceleration loading device under the action of the standard axle load includes:
calculating the total traffic flow in each lane according to the total traffic prediction result and the number of lanes of the road;
and respectively converting the total traffic flow in each lane into the loading frequency of the corresponding single lane under the standard axle load action of the accelerated loading test device according to the following axle load conversion formula:
wherein, CroadFor loading frequency, CsIs the total traffic flow of a single lane,
is a heavy duty gain factor.
Further, acquiring a full-year real service temperature field of a road and calculating the damage proportion of each temperature section, wherein the method comprises the following steps:
acquiring annual air temperature data of a region where a road is located, and drawing a temperature spectrum;
respectively acquiring annual temperature data of a region where a road is located according to a preset threshold value, wherein the annual temperature data comprise high-temperature data, medium-temperature data and low-temperature data; and calculating a high temperature time ratio, a medium temperature time ratio and a low temperature time ratio.
Further, calculating the loading frequency, the loading capacity and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage ratio of each temperature section, and the method comprises the following steps:
and calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage proportion of each temperature section, in combination with a damage degree model and through a fatigue damage equivalence principle.
In another aspect, the present invention provides a fatigue damage-based linear road accelerated loading test system, including:
the road traffic total quantity acquisition module is used for acquiring a traffic total quantity prediction result of a road;
the total loading frequency calculation module is used for converting the total traffic prediction result predicted by the road total traffic prediction module into the total loading frequency of the accelerated loading device under the action of standard axle load;
the damage proportion calculation module of each temperature section is used for acquiring the annual real service temperature field of the road and calculating the damage proportion of each temperature section;
the test parameter calculation module is used for calculating the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency calculated by the total loading frequency calculation module and the damage occupation ratio of each temperature section calculated by the damage occupation ratio calculation module;
and the accelerated loading test device is used for carrying out an accelerated loading test based on fatigue damage according to the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section calculated by the test parameter calculation module, so as to realize the accelerated loading test of the road.
Further, the total road traffic amount obtaining module is specifically configured to:
and predicting the future traffic total of the road by combining the analysis data of traffic attraction and transfer according to the road data and the road development rule.
Further, the total loading frequency calculation module is specifically configured to:
calculating the total traffic flow in each lane according to the predicted total traffic volume and the number of lanes of the road;
and respectively converting the total traffic flow in each lane into the loading frequency of the corresponding single lane under the standard axle load action of the accelerated loading test device according to the following axle load conversion formula:
wherein, CroadFor loading frequency, CsIs the total traffic flow of a single lane,
is a heavy duty gain factor.
Further, the damage proportion calculation module of each temperature segment is specifically configured to:
acquiring annual air temperature data of a region where a road is located, and drawing a temperature spectrum;
respectively acquiring annual temperature data of a region where a road is located according to a preset threshold value, wherein the annual temperature data comprise high-temperature data, medium-temperature data and low-temperature data; and calculating a high temperature time ratio, a medium temperature time ratio and a low temperature time ratio.
Further, the test parameter calculation module is specifically configured to:
and calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage proportion of each temperature section, in combination with a damage degree model and through a fatigue damage equivalence principle.
The technical scheme provided by the invention has the beneficial effects that at least:
the linear road accelerated loading test method based on fatigue damage accords with the actual mechanism of fatigue damage, and determines the total traffic volume of a researched area through calculation; converting the total traffic into the loading frequency of the acceleration loading device under the action of standard axle load by an axle load conversion method; meanwhile, the condition of an actual temperature field and a damage degree model are combined, so that the whole accelerated loading test process is ensured to be scientifically and accurately carried out; the loading frequency, the loading amount and the test temperature of the accelerated loading test device are calculated according to the fatigue damage equivalence principle, the loading method is scientific and efficient, and the accuracy of accelerated loading is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a fatigue damage-based linear road acceleration loading test method provided by an embodiment of the invention;
FIG. 2 is another schematic flow chart of a fatigue damage-based linear road acceleration loading test method provided by an embodiment of the invention;
FIG. 3 is a graph of exemplary seasonal data of an exemplary regional temperature gradient provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
First embodiment
The embodiment provides a fatigue damage-based linear road acceleration loading test method, the execution flow of which is shown in fig. 1, and the method comprises the following steps:
s101, acquiring a total traffic prediction result of a road;
specifically, in this embodiment, the foregoing S101 specifically is: according to the data and the road development law, the future traffic total amount of the research area, route or road section is calculated by combining the analysis data of traffic attraction and transfer.
S102, converting the traffic total prediction result into the total loading frequency of the accelerated loading device under the action of standard axle load;
specifically, in this embodiment, the foregoing S102 specifically includes the following processes:
calculating the total traffic flow in each lane according to the total traffic prediction result and the number of lanes of the road;
and respectively converting the total traffic flow in each lane into the loading frequency of the corresponding single lane under the standard axle load action of the accelerated loading test device according to the following axle load conversion formula:
wherein, CroadFor loading frequency, CsThe frequency of loading for a single lane vehicle,
is a heavy duty gain factor.
In the embodiment, when the linear acceleration loading device is loaded with a load of 50kN at a selected road section according to the total road traffic and by combining an axle load conversion method, the obtained total loading frequency is about 315.1 ten thousand times.
S103, acquiring a full-year real service temperature field of the road, and calculating the damage proportion of each temperature section;
specifically, in this embodiment, the foregoing S103 specifically includes the following processes:
acquiring annual temperature change data of a road region, and drawing a temperature spectrum;
respectively acquiring annual temperature data of a region where a road is located according to a preset threshold value, wherein the annual temperature data comprise high-temperature data, medium-temperature data and low-temperature data; and calculating a high temperature time ratio, a medium temperature time ratio and a low temperature time ratio.
In the embodiment, the temperature spectrum is drawn according to the annual real service temperature field of the road at the selected road section, as shown in fig. 3, it can be known from the graph that the lowest temperature of the selected area is about-15 ℃, and the highest temperature is about 40 ℃. If the temperature is higher than 25 ℃ and lower than 0 ℃, the ratio of the low temperature is as follows: 30 percent; medium temperature ratio: 30 percent; high temperature ratio: 40 percent.
S104, calculating the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage proportion of each temperature section;
specifically, in this embodiment, the foregoing S104 specifically is: and calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage proportion of each temperature section, in combination with a damage degree model and through a fatigue damage equivalence principle.
In this embodiment, in step S104, the loading speed is fixed to 30km/h, and the maximum axle load of the accelerated loading test apparatus is 112.5kN in the high temperature section and the low temperature section to achieve the effect of the accelerated test. And in the middle temperature section, a standard axle load is selected, namely a half axle load is 50 kN. When the load is the same, the fatigue life of the road is lower at high temperature and low temperature compared with that of a medium temperature asphalt road. If 40 ℃ is selected as the test temperature of the high-temperature section; taking the temperature of 20 ℃ as the test temperature of a normal temperature section; -20 ℃ as test temperature for the low temperature section. Loading 1.314e5 times at 40 ℃, 30km/h and 112.5kN according to the principle of damage equivalence; loading for 4.96e5 times at 20 deg.C, 30km/h, 50 kN; at-20 deg.C, 30km/h, 112.5kN and 7.15e4 times.
And S105, carrying out an accelerated loading test based on fatigue damage according to the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section, and realizing the accelerated loading test of the road.
Specifically, in the present example, the above S105 is specifically loaded 1.314e5 times at 40 ℃, 30km/h, 112.5 kN; loading for 4.96e5 times at 20 deg.C, 30km/h, 50 kN; at-20 deg.C, 30km/h, 112.5kN and 7.15e4 times. The accelerated loading test based on fatigue damage can be guaranteed.
In summary, the linear road accelerated loading test method based on fatigue damage of the embodiment calculates the loading frequency of the accelerated loading device according to the total road traffic; calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device according to the loading frequency of the accelerated loading device, the damage proportion of each temperature section of the actual temperature field and the damage degree model, and the fatigue damage equivalence principle, so as to realize the accelerated loading test based on the fatigue damage; greatly simplifies the accelerated loading fatigue test, and has important value and practical significance.
Second embodiment
The embodiment provides a fatigue damage-based linear road acceleration loading test method, the execution flow of which is shown in fig. 2, and the method comprises the following steps:
s201, predicting the total traffic of the road according to the actual service life of the road;
s202, converting the total traffic into the loading frequency of the acceleration loading device under the action of standard axle load;
s203, calculating the road damage degree;
s204, calculating the loading frequency of the damage equivalent accelerated loading device;
s205, initially determining a temperature/load coupling damage test system;
s206, calculating equivalent damage test efficiency and energy consumption generated by different test systems;
and S207, determining a temperature/load coupling damage test system.
The linear road accelerated loading test method based on fatigue damage accords with the actual mechanism of fatigue damage, and determines the total traffic volume of a researched area through calculation; converting the total traffic into the loading frequency of the acceleration loading device under the action of standard axle load by an axle load conversion method; meanwhile, the condition of an actual temperature field and a damage degree model are combined, so that the whole accelerated loading test process is ensured to be scientifically and accurately carried out; the loading frequency, the loading amount and the test temperature of the accelerated loading test device are calculated according to the fatigue damage equivalence principle, the loading method is scientific and efficient, and the accuracy of accelerated loading is improved.
Third embodiment
The embodiment provides a fatigue damage-based linear road accelerated loading test system, which comprises the following modules:
the road traffic total quantity acquisition module is used for acquiring a traffic total quantity prediction result of a road;
the total loading frequency calculation module is used for converting the total traffic prediction result predicted by the road total traffic acquisition module into the total loading frequency of the accelerated loading device under the action of standard axle load;
the damage proportion calculation module of each temperature section is used for acquiring the annual real service temperature field of the road and calculating the damage proportion of each temperature section;
the test parameter calculation module is used for calculating the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency calculated by the total loading frequency calculation module and the damage occupation ratio of each temperature section calculated by the damage occupation ratio calculation module;
and the accelerated loading test device is used for carrying out an accelerated loading test based on fatigue damage according to the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section calculated by the test parameter calculation module, so as to realize the accelerated loading test of the road.
The linear road accelerated loading test system based on fatigue damage of the embodiment corresponds to the linear road accelerated loading test method based on fatigue damage of the first embodiment; the functions realized by the functional modules in the fatigue damage-based accelerated loading test system for the linear road of the embodiment correspond to the flow steps in the fatigue damage-based accelerated loading test method for the linear road of the first embodiment one by one; therefore, it is not described herein.
Further, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
Finally, it should be noted that while the above describes a preferred embodiment of the invention, it will be appreciated by those skilled in the art that, once the basic inventive concepts have been learned, numerous changes and modifications may be made without departing from the principles of the invention, which shall be deemed to be within the scope of the invention. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Claims (10)
1. A linear road accelerated loading test method based on fatigue damage is characterized by comprising the following steps:
acquiring a total traffic prediction result of a road;
converting the traffic total prediction result into the total loading frequency of the accelerated loading device under the action of standard axle load;
acquiring a full-year real service temperature field of a road, and calculating the damage proportion of each temperature section;
calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage proportion of each temperature section;
and carrying out an accelerated loading test based on fatigue damage according to the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section, thereby realizing the accelerated loading test of the road.
2. The method for the fatigue damage-based linear road accelerated loading test according to claim 1, wherein the obtaining of the total traffic prediction result of the road comprises:
and predicting the future traffic total of the road by combining the analysis data of traffic attraction and transfer according to the road data and the road development rule to obtain the traffic total prediction result of the road.
3. The method for the fatigue damage-based linear road accelerated loading test according to claim 1, wherein the step of converting the total traffic prediction result into the total loading frequency of the accelerated loading device under the action of standard axle load comprises the following steps:
calculating the total traffic flow in each lane according to the total traffic prediction result and the number of lanes of the road;
and respectively converting the total traffic flow in each lane into the loading frequency of the corresponding single lane under the standard axle load action of the accelerated loading test device according to the following axle load conversion formula:
wherein, CroadFor loading frequency, CsIs the total traffic flow of a single lane,
is a heavy duty gain factor.
4. The method for the accelerated loading test of the linear road based on the fatigue damage as claimed in claim 1, wherein the step of obtaining the annual real service temperature field of the road and calculating the damage proportion of each temperature section comprises the following steps:
acquiring annual air temperature data of a region where a road is located, and drawing a temperature spectrum;
respectively acquiring annual temperature data of a region where a road is located according to a preset threshold value, wherein the annual temperature data comprise high-temperature data, medium-temperature data and low-temperature data; and respectively calculating the high-temperature time ratio, the medium-temperature time ratio and the low-temperature time ratio.
5. The method for the accelerated loading test of the linear road based on the fatigue damage as claimed in claim 1, wherein the step of calculating the loading frequency, the loading capacity and the test temperature of the accelerated loading test device corresponding to each temperature segment at the same preset loading speed according to the total loading frequency and the damage ratio of each temperature segment comprises:
and calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage proportion of each temperature section, in combination with a damage degree model and through a fatigue damage equivalence principle.
6. The utility model provides a linear road accelerated loading test system based on fatigue damage which characterized in that includes:
the road traffic total quantity acquisition module is used for acquiring a traffic total quantity prediction result of a road;
the total loading frequency calculation module is used for converting the total traffic prediction result predicted by the road total traffic acquisition module into the total loading frequency of the accelerated loading device under the action of standard axle load;
the damage proportion calculation module of each temperature section is used for acquiring the annual real service temperature field of the road and calculating the damage proportion of each temperature section;
the test parameter calculation module is used for calculating the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency calculated by the total loading frequency calculation module and the damage occupation ratio of each temperature section calculated by the damage occupation ratio calculation module;
and the accelerated loading test device is used for carrying out an accelerated loading test based on fatigue damage according to the loading frequency, the loading amount and the test temperature of the accelerated loading test device corresponding to each temperature section calculated by the test parameter calculation module, so as to realize the accelerated loading test of the road.
7. The fatigue damage-based linear road accelerated loading test system according to claim 6, wherein the total road traffic volume obtaining module is specifically configured to:
and predicting the future traffic total of the road by combining the analysis data of traffic attraction and transfer according to the road data and the road development rule to obtain the traffic total prediction result of the road.
8. The fatigue damage-based accelerated loading test system for a linear road according to claim 6, wherein the total loading frequency calculation module is specifically configured to:
calculating the total traffic flow in each lane according to the total traffic prediction result and the number of lanes of the road;
and respectively converting the total traffic flow in each lane into the loading frequency of the corresponding single lane under the standard axle load action of the accelerated loading test device according to the following axle load conversion formula:
wherein, CroadFor loading frequency, CsIs the total traffic flow of a single lane,
is a heavy duty gain factor.
9. The fatigue damage-based accelerated loading test system for a linear road according to claim 6, wherein the damage fraction calculating module for each temperature segment is specifically configured to:
acquiring annual air temperature data of a region where a road is located, and drawing a temperature spectrum;
respectively acquiring annual temperature data of a region where a road is located according to a preset threshold value, wherein the annual temperature data comprise high-temperature data, medium-temperature data and low-temperature data; and calculating a high temperature time ratio, a medium temperature time ratio and a low temperature time ratio.
10. The fatigue damage-based accelerated loading test system for a linear road according to claim 6, wherein the test parameter calculation module is specifically configured to:
and calculating the loading frequency, the load capacity and the test temperature of the accelerated loading test device corresponding to each temperature section at the same preset loading speed according to the total loading frequency and the damage proportion of each temperature section, in combination with a damage degree model and through a fatigue damage equivalence principle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521183.3A CN112539994A (en) | 2020-12-21 | 2020-12-21 | Linear road accelerated loading test method and system based on fatigue damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521183.3A CN112539994A (en) | 2020-12-21 | 2020-12-21 | Linear road accelerated loading test method and system based on fatigue damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112539994A true CN112539994A (en) | 2021-03-23 |
Family
ID=75019438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011521183.3A Pending CN112539994A (en) | 2020-12-21 | 2020-12-21 | Linear road accelerated loading test method and system based on fatigue damage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112539994A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592652A (en) * | 2008-07-04 | 2009-12-02 | 重庆交通大学 | Prediction method of fatigue lifetime of asphalt pavement in sticky areas |
| CN104849155A (en) * | 2015-05-26 | 2015-08-19 | 武汉理工大学 | Method for predicting residual service life of asphalt pavement according to fatigue-modulus comprehensive performance of core sample |
| CN109520870A (en) * | 2018-10-23 | 2019-03-26 | 北京科技大学 | A kind of linear road temperature field accelerated test method |
| CN111310258A (en) * | 2020-01-16 | 2020-06-19 | 交通运输部公路科学研究所 | Method for determining fatigue equivalent temperature of asphalt pavement |
| CN111678829A (en) * | 2020-06-11 | 2020-09-18 | 北京科技大学 | Temperature control method of linear road accelerated loading test device based on operation energy consumption |
-
2020
- 2020-12-21 CN CN202011521183.3A patent/CN112539994A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592652A (en) * | 2008-07-04 | 2009-12-02 | 重庆交通大学 | Prediction method of fatigue lifetime of asphalt pavement in sticky areas |
| CN104849155A (en) * | 2015-05-26 | 2015-08-19 | 武汉理工大学 | Method for predicting residual service life of asphalt pavement according to fatigue-modulus comprehensive performance of core sample |
| CN109520870A (en) * | 2018-10-23 | 2019-03-26 | 北京科技大学 | A kind of linear road temperature field accelerated test method |
| CN111310258A (en) * | 2020-01-16 | 2020-06-19 | 交通运输部公路科学研究所 | Method for determining fatigue equivalent temperature of asphalt pavement |
| CN111678829A (en) * | 2020-06-11 | 2020-09-18 | 北京科技大学 | Temperature control method of linear road accelerated loading test device based on operation energy consumption |
Non-Patent Citations (4)
| Title |
|---|
| 周丹等: "基于足尺加速加载试验的现役沥青路面疲劳特性研究", 《公路交通科技》 * |
| 张俊等: "沥青路面疲劳损伤理论研究综述", 《公路交通科技》 * |
| 王晓强: ""基于HVS加速加载柔性基层沥青路面疲劳性能研究"", 《中国优秀硕士学位论文全文数据库-工程科技Ⅱ辑》 * |
| 韦璐: "行车荷载与温度综合作用下沥青路面疲劳损伤分析", 《公路》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Prediction of PM2. 5 concentration based on the similarity in air quality monitoring network | |
| Ohunakin et al. | Generation of a typical meteorological year for north–east, Nigeria | |
| Geraldi et al. | Influence of the length of rainfall time series on rainwater harvesting systems: A case study in Berlin | |
| CN103606266B (en) | Based on the road grid traffic improving countermeasure efficiency evaluation method of DEA | |
| CN103295081A (en) | Electrical power system load prediction method based on back propagation (BP) neural network | |
| CN107153737B (en) | Method for determining optimal axle load period of road surface based on mechanics-experience method | |
| Yang et al. | Analysis of typical meteorological years in different climates of China | |
| CN104636828A (en) | Public bicycle station supply and demand prediction method based on Markov chain | |
| CN112288156B (en) | Air quality prediction method based on meta-learning and graph attention space-time neural network | |
| CN103123665A (en) | Short-term power load forecasting method based on fuzzy clustering similar day | |
| CN111428942B (en) | Line icing thickness prediction method for extracting micro-terrain factors based on variable grid technology | |
| CN105760970A (en) | Method for predicting AQI | |
| CN102426674A (en) | Power system load prediction method based on Markov chain | |
| CN107665385A (en) | A kind of short-term load forecasting method based on SVMs of micro-grid system | |
| CN105631539A (en) | Intelligent building energy consumption prediction method based on support vector machine | |
| CN105184067A (en) | Isolator pollution flashover state fuzzy evaluation method | |
| CN101792992B (en) | Permanent pavement design method | |
| CN103884593A (en) | Structural damage location and damage degree identification method based on small amount of static measurement data | |
| CN113155498A (en) | High-resolution building operation energy consumption carbon emission determination method, system and equipment | |
| CN102769298B (en) | Forecasting method and forecasting system for solar grid-connection generated power | |
| Koholé et al. | Comparative study of thirteen numerical methods for evaluating Weibull parameters for solar energy generation at ten selected locations in Cameroon | |
| CN112539994A (en) | Linear road accelerated loading test method and system based on fatigue damage | |
| CN113537578A (en) | Power consumer behavior prediction method | |
| Das | Goodness-of-fit tests for generalized normal distribution for use in hydrological frequency analysis | |
| CN103473476B (en) | The wind energy resources projectional technique of wind data is surveyed based on several anemometer towers in region |
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: 20210323 |
|
| RJ01 | Rejection of invention patent application after publication |