Gridded high-speed railway supporting layer concrete wave velocity detection device and estimation method

• Main Authors: LI YIQIANG, RONG LIFAN, TIAN XIUSHU, YANG YONG, ZHAO WEIGANG
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a gridded high-speed railway supporting layer concrete wave velocity detection device and estimation method, and relates to the technical field of nondestructive detection of concrete quality of ballastless tracks of high-speed railway. Firstly, the supporting layer elastic wave velocity detection device is provided; an elastic wave velocity estimation model is built by thegridded estimation method; and based on a loss function under a fine-scale condition and a neural network model of an optimization objective, fine nondestructive detection of the wave velocity in theballastless tracks of the high-speed railway is realized. The problem of fine-scale detection of the concrete strength of the supporting layers of the ballastless tracks of the high-speed railway issolved; the destruction of traditional drill core sampling to the structure is overcome; the detection scale is refined; the detection precision of concrete wave velocity estimation is improved; and the detection device has the