Analysis of the Stressed State of Sand-Soil Using Ultrasound

The maintenance of the ballast substructure is an important cost-driver for railway systems. problem that today’s condition monitoring methods are insufficient to collect detailed data on compaction and stress allocation inside bed. That makes it challenging improve technology organization. This study aimed investigate applicability ultrasound method analyzing state sand-soil relation between residual wave propagation velocity. experiments sand in a box with different allocations ultrasonic receivers pressure measurement cells were produced under external loading. In addition, vertical horizontal distributions measured. results showed correlation test load, stress, Moreover, stresses after loading cycles analyzed.