Non-Intrusive Characterization and Monitoring of Fluid Mud

Non-Intrusive Characterization and Monitoring of Fluid Mud: Laboratory Experiments with Seismic Techniques, Distributed Acoustic Sensing (DAS), and Distributed Temperature Sensing (DTS)

Draganov, D.S. (TU Delft Applied Geophysics and Petrophysics)
Ma, X. (TU Delft Applied Geophysics and Petrophysics)
Buisman, M. (TU Delft Applied Geophysics and Petrophysics; Port of Rotterdam)
Kiers, Tjeerd (Student TU Delft)
Heller, H.K.J. (TU Delft Lab Geoscience and Engineering)
Kirichek, Alex (TU Delft Rivers, Ports, Waterways and Dredging Engineering)

Manning, Andrew James (editor)

2021

In ports and waterways, the bathymetry is regularly surveyed for updating navigation charts ensuring safe transport. In port areas with fluid-mud layers, most traditional surveying techniques are accurate but are intrusive and provide one-dimensional measurements limiting their application. Current non-intrusive surveying techniques are less accurate in detecting and monitoring muddy consolidated or sandy bed below fluid-mud layers. Furthermore, their application is restricted by surveying-vessels availability limiting temporary storm- or dredging-related bathymetrical changes capture. In this chapter, we first review existing non-intrusive techniques, with emphasis on sound techniques. Then, we give a short review of several seismic-exploration techniques applicable to non-intrusive fluid-mud characterization and monitoring with high spatial and temporal resolution. Based on the latter, we present recent advances in non-intrusive fluid-mud monitoring using ultrasonic transmission and reflection measurements. We show laboratory results for monitoring velocity changes of longitudinal and transverse waves propagating through fluid mud while it is consolidating. We correlate the velocity changes with shear-strength changes while the fluid mud is consolidating and show a positive correlation with the yield stress. We show ultrasonic laboratory results using reflection and transmission techniques for estimating the fluid-mud longitudinal- and transverse-wave velocities. For water/mud interface detection, we also use distributed acoustic sensing (DAS) and distributed temperature sensing (DTS)

Safe navigation
non-intrusive monitoring of fluid mud
transmission seismic measurements
reflection seismic measurements
yield stress
distributed acoustic sensing (DAS)
distributed temperature sensing (DTS)

http://resolver.tudelft.nl/uuid:e9adbef8-f37f-4915-a4ab-50ac62834b83

https://doi.org/10.5772/intechopen.98420

IntechOpen

978-1-83881-119-8

Sediment Transport - Recent Advances

Institutional Repository

book chapter

© 2021 D.S. Draganov, X. Ma, M. Buisman, Tjeerd Kiers, H.K.J. Heller, Alex Kirichek