A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Asphalt pavement semi-rigid base crack monitoring method based on intelligent perception
The invention discloses an asphalt pavement semi-rigid base crack monitoring method based on intelligent perception, which is characterized in that intelligent particles integrated by a resistive sensor are buried in an asphalt pavement semi-rigid base to acquire mechanical response of a pavement structure, and monitoring of base cracks is realized. The method comprises the following steps: calibrating a conversion relationship between macro and micro parameters based on a uniaxial tension and compression simulation experiment, and establishing a cross-scale pavement model by adopting a finite element-discrete element coupling method; the method comprises the following steps of: tracking and positioning a base crack through numerical simulation of base crack evolution in combination with a fracture mechanics I-II type composite crack Westergard complex variable function method; burying intelligent particles in a pavement model base layer for information acquisition, and realizing matching of intelligent particle monitoring indexes and extraction of a sensitive range according to characteristics of crack neighborhood stress concentration; and establishing an intelligent particle layout scheme for monitoring and positioning the cracks of the semi-rigid base, and realizing monitoring of the positions and the expansion stages of the cracks of the semi-rigid base.
本申请公开了一种基于智能感知的沥青路面半刚性基层裂缝监测方法，在沥青路面半刚性基层中埋设电阻式传感器集成的智能颗粒对路面结构的力学响应进行采集，实现对基层裂缝的监测。其步骤为：基于单轴拉压仿真实验标定宏细观参数的转化关系，采用有限元‑离散元耦合的方法建立跨尺度的路面模型；通过基层裂缝演化的数值模拟，结合断裂力学I‑II型复合裂缝Westergard复变函数法对基层裂缝进行跟踪与定位；在路面模型基层中埋设智能颗粒进行信息采集，根据裂缝邻域应力集中的特征，实现智能颗粒监测指标的匹配与敏感范围的提取；建立半刚性基层裂缝监测与定位的智能颗粒布设方案，实现对半刚性基层裂缝位置与扩展阶段的监测。
Asphalt pavement semi-rigid base crack monitoring method based on intelligent perception
The invention discloses an asphalt pavement semi-rigid base crack monitoring method based on intelligent perception, which is characterized in that intelligent particles integrated by a resistive sensor are buried in an asphalt pavement semi-rigid base to acquire mechanical response of a pavement structure, and monitoring of base cracks is realized. The method comprises the following steps: calibrating a conversion relationship between macro and micro parameters based on a uniaxial tension and compression simulation experiment, and establishing a cross-scale pavement model by adopting a finite element-discrete element coupling method; the method comprises the following steps of: tracking and positioning a base crack through numerical simulation of base crack evolution in combination with a fracture mechanics I-II type composite crack Westergard complex variable function method; burying intelligent particles in a pavement model base layer for information acquisition, and realizing matching of intelligent particle monitoring indexes and extraction of a sensitive range according to characteristics of crack neighborhood stress concentration; and establishing an intelligent particle layout scheme for monitoring and positioning the cracks of the semi-rigid base, and realizing monitoring of the positions and the expansion stages of the cracks of the semi-rigid base.
本申请公开了一种基于智能感知的沥青路面半刚性基层裂缝监测方法，在沥青路面半刚性基层中埋设电阻式传感器集成的智能颗粒对路面结构的力学响应进行采集，实现对基层裂缝的监测。其步骤为：基于单轴拉压仿真实验标定宏细观参数的转化关系，采用有限元‑离散元耦合的方法建立跨尺度的路面模型；通过基层裂缝演化的数值模拟，结合断裂力学I‑II型复合裂缝Westergard复变函数法对基层裂缝进行跟踪与定位；在路面模型基层中埋设智能颗粒进行信息采集，根据裂缝邻域应力集中的特征，实现智能颗粒监测指标的匹配与敏感范围的提取；建立半刚性基层裂缝监测与定位的智能颗粒布设方案，实现对半刚性基层裂缝位置与扩展阶段的监测。
Asphalt pavement semi-rigid base crack monitoring method based on intelligent perception
一种基于智能感知的沥青路面半刚性基层裂缝监测方法
DING XUNHAO (author) / YE ZHONGYUN (author) / HUANG FEIYU (author) / ZHANG WEIGUANG (author) / MA TAO (author) / TIAN PEIXIN (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
/
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
/
G06T
Bilddatenverarbeitung oder Bilddatenerzeugung allgemein
,
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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