A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CRTS II type ballastless track joint damage detection method and system
The invention discloses a CRTSII type ballastless track joint damage detection method and system, and relates to the technical field of track damage detection.The method comprises the steps that a wide and narrow joint model is manufactured according to the structure of a to-be-detected CRTSII type ballastless track; performing a three-point bending test on the wide-narrow joint model to obtain three-point bending test parameters; determining a concrete plastic damage model and an interface cohesion model according to the three-point bending test parameters; according to the to-be-tested CRTSII type ballastless track, constructing a spatial refined simulation model; according to the spatial refinement simulation model, the concrete plastic damage model and the interface cohesion model, performing analog simulation to obtain damage parameters in the wide and narrow crack cracking process; and according to the damage parameters in the cracking process of the wide and narrow cracks, determining the damage state of the wide and narrow joints and the track plate of the CRTSII type ballastless track to be detected. According to the invention, the accuracy of flaw detection can be improved.
本发明公开一种CRTSII型无砟轨道接缝伤损检测方法及系统，涉及轨道伤损检测技术领域，所述方法包括根据待测CRTSII型无砟轨道的结构制作宽窄接缝模型；对所述宽窄接缝模型进行三点弯曲试验得到三点弯曲试验参数；根据所述三点弯曲试验参数确定混凝土塑性伤损模型以及界面内聚力模型；根据所述待测CRTSII型无砟轨道构建空间精细化仿真模型；根据所述空间精细化仿真模型、所述混凝土塑性伤损模型以及界面内聚力模型进行模拟仿真得到宽窄裂缝开裂过程中的损伤参数；根据所述宽窄裂缝开裂过程中的损伤参数确定所述待测CRTSII型无砟轨道的宽窄接缝与轨道板的损伤状态。本发明可提高伤损检测的准确性。
CRTS II type ballastless track joint damage detection method and system
The invention discloses a CRTSII type ballastless track joint damage detection method and system, and relates to the technical field of track damage detection.The method comprises the steps that a wide and narrow joint model is manufactured according to the structure of a to-be-detected CRTSII type ballastless track; performing a three-point bending test on the wide-narrow joint model to obtain three-point bending test parameters; determining a concrete plastic damage model and an interface cohesion model according to the three-point bending test parameters; according to the to-be-tested CRTSII type ballastless track, constructing a spatial refined simulation model; according to the spatial refinement simulation model, the concrete plastic damage model and the interface cohesion model, performing analog simulation to obtain damage parameters in the wide and narrow crack cracking process; and according to the damage parameters in the cracking process of the wide and narrow cracks, determining the damage state of the wide and narrow joints and the track plate of the CRTSII type ballastless track to be detected. According to the invention, the accuracy of flaw detection can be improved.
本发明公开一种CRTSII型无砟轨道接缝伤损检测方法及系统，涉及轨道伤损检测技术领域，所述方法包括根据待测CRTSII型无砟轨道的结构制作宽窄接缝模型；对所述宽窄接缝模型进行三点弯曲试验得到三点弯曲试验参数；根据所述三点弯曲试验参数确定混凝土塑性伤损模型以及界面内聚力模型；根据所述待测CRTSII型无砟轨道构建空间精细化仿真模型；根据所述空间精细化仿真模型、所述混凝土塑性伤损模型以及界面内聚力模型进行模拟仿真得到宽窄裂缝开裂过程中的损伤参数；根据所述宽窄裂缝开裂过程中的损伤参数确定所述待测CRTSII型无砟轨道的宽窄接缝与轨道板的损伤状态。本发明可提高伤损检测的准确性。
CRTS II type ballastless track joint damage detection method and system
CRTS II型无砟轨道接缝伤损检测方法及系统
LI ZAIWEI (author) / GAO CUNPING (author) / LU HONGYAO (author) / HE YUELEI (author) / MENG XIAOLIANG (author) / ZHANG ZEQUN (author) / CHEN JIALU (author) / ZHENG GANKANG (author)
2023-03-24
Patent
Electronic Resource
Chinese
IPC:
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
/
E01B
PERMANENT WAY
,
Gleisoberbau
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Construction method of CRTS III plate type ballastless track
| European Patent Office | 2015
Joint structure suitable for CRTS II type plate-type ballastless track crossing girder joint
| European Patent Office | 2024
| European Patent Office | 2021