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A platform for research: civil engineering, architecture and urbanism
Road surface fatigue damage prediction system and method considering semi-rigid base modulus attenuation
The invention discloses a pavement fatigue damage prediction system and method considering semi-rigid base modulus attenuation, and relates to the technical field of road engineering. According to the method, the traffic volume and the axle load spectrum of a pavement structure are obtained in real time based on a pavement fatigue damage prediction system considering semi-rigid base modulus attenuation, a test piece is prepared according to material parameters of the pavement structure for testing, and a fatigue life prediction model, a modulus attenuation model and a dynamic modulus main curve are determined; after the dynamic modulus of the asphalt layer is obtained by combining the measured temperature, calculating the cumulative action times and the cumulative equivalent axle load action times of the fatigue life of the semi-rigid base layer in each analysis period, and calculating the bottom tensile strain of the asphalt layer, acting on each axle load interval, of each axle type on the basis of an elastic stratified theory system; and determining the asphalt layer fatigue damage of the pavement structure in the total analysis period by using the asphalt fatigue damage model. According to the method, the influence of semi-rigid base modulus attenuation on pavement fatigue damage is fully considered, and scheme design and scientific maintenance of a pavement structure are facilitated.
本发明公开了一种考虑半刚性基层模量衰减的路面疲劳损伤预测系统及方法，涉及道路工程技术领域。本发明方法基于考虑半刚性基层模量衰减的路面疲劳损伤预测系统实时获取路面结构的交通量和轴载谱，根据路面结构材料参数制备试件进行试验，确定疲劳寿命预估模型、模量衰减模型和动态模量主曲线，结合测量温度获取沥青层动态模量后，计算各分析期的半刚性基层疲劳寿命累计作用次数和累计当量轴载作用次数，基于弹性层状理论体系计算各轴型作用于各轴载区间的沥青层层底拉应变，并利用沥青疲劳损伤模型确定总分析期内路面结构的沥青层疲劳损伤。本发明充分考虑了半刚性基层模量衰减对路面疲劳损伤的影响，有利于路面结构的方案设计和科学养护。
Road surface fatigue damage prediction system and method considering semi-rigid base modulus attenuation
The invention discloses a pavement fatigue damage prediction system and method considering semi-rigid base modulus attenuation, and relates to the technical field of road engineering. According to the method, the traffic volume and the axle load spectrum of a pavement structure are obtained in real time based on a pavement fatigue damage prediction system considering semi-rigid base modulus attenuation, a test piece is prepared according to material parameters of the pavement structure for testing, and a fatigue life prediction model, a modulus attenuation model and a dynamic modulus main curve are determined; after the dynamic modulus of the asphalt layer is obtained by combining the measured temperature, calculating the cumulative action times and the cumulative equivalent axle load action times of the fatigue life of the semi-rigid base layer in each analysis period, and calculating the bottom tensile strain of the asphalt layer, acting on each axle load interval, of each axle type on the basis of an elastic stratified theory system; and determining the asphalt layer fatigue damage of the pavement structure in the total analysis period by using the asphalt fatigue damage model. According to the method, the influence of semi-rigid base modulus attenuation on pavement fatigue damage is fully considered, and scheme design and scientific maintenance of a pavement structure are facilitated.
本发明公开了一种考虑半刚性基层模量衰减的路面疲劳损伤预测系统及方法，涉及道路工程技术领域。本发明方法基于考虑半刚性基层模量衰减的路面疲劳损伤预测系统实时获取路面结构的交通量和轴载谱，根据路面结构材料参数制备试件进行试验，确定疲劳寿命预估模型、模量衰减模型和动态模量主曲线，结合测量温度获取沥青层动态模量后，计算各分析期的半刚性基层疲劳寿命累计作用次数和累计当量轴载作用次数，基于弹性层状理论体系计算各轴型作用于各轴载区间的沥青层层底拉应变，并利用沥青疲劳损伤模型确定总分析期内路面结构的沥青层疲劳损伤。本发明充分考虑了半刚性基层模量衰减对路面疲劳损伤的影响，有利于路面结构的方案设计和科学养护。
Road surface fatigue damage prediction system and method considering semi-rigid base modulus attenuation
考虑半刚性基层模量衰减的路面疲劳损伤预测系统及方法
WANG SHANSHAN (author) / HAN WENYANG (author) / ZHANG WENWU (author) / ZHANG XIAOMENG (author) / HU XUELIANG (author) / YANG FEI (author) / FAN CHAO (author) / CUI TING (author) / LIU FANGZHOU (author) / SI QINGSHAN (author)
2024-11-26
Patent
Electronic Resource
Chinese
IPC:
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Reliability Model of Fatigue Damage Evolvement of Semi-Rigid Road Base Material
| Tema Archive | 2012
Reliability Model of Fatigue Damage Evolvement of Semi-Rigid Road Base Material
| British Library Conference Proceedings | 2012
Influence of Strength Attenuation for Silt Soil on the Fatigue Life of Semi-Rigid Base
| Tema Archive | 2013
Influence of Strength Attenuation for Silt Soil on the Fatigue Life of Semi-Rigid Base
| British Library Conference Proceedings | 2013
Influence of Strength Attenuation for Silt Soil on the Fatigue Life of Semi-Rigid Base
| Trans Tech Publications | 2013