In case of shallow buried depth and high hudraulic pressure, it was very difficult to control excavation
7th REAAA - Proceedings-vol. I.
ASTM STP 546 Composite materials: testing and design
Proceedings of the Eastern Asia Society for Transportation Studies, volume 2.
Proceedings of the Eastern Asia Society for Transportation Studies, volume 2
The use of multifrequency backcalculation can overcome the limitation on the maximum allowable number of layers in most static backcalculation programs. However, its convergence may break down when using high-frequency deflections with static estimation. Based on the dispersive characteristics of the surface waves, a newly developed procedure for estimating the seed moduli was implemented. The …